infocus lp400 service manual

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Service Resource Guide for the InFocus

010-0156-04

Copyright © 1999 by InFocus Systems, Inc. Wilsonville, Oregon. All rights reserved.

Click ‘How to view this guide’ at the left to get started. LP400 • LP420 • LP425 • LP425z • LP435z

TrademarksInFocus and LP are trademarks or registered trademarks of InFocus, Inc.

Macintosh is a trademark of Apple Computer, Inc.

IBM is a trademark of International Business Machines, Inc.

Microsoft and Windows are trademarks or registered trademarks of Microsoft Corporation.

400 Series Online Service Guide

Table of Contents

Welcome to the 400 Series Service Resource Guide .....................................1How we organized the guide......................................................................................... 1

Using the 400 Series Service Resource Guide.................................................... 2

Conventions we use ..................................................................................................... 3

Printing the 400 Series Service Guide........................................................................... 3

400 Series Product Information.........................................................................4

Product Overview .................................................................................................. 5

Product Description .............................................................................................. 6

400 Series Block Diagram ............................................................................................ 7

Hardware platform description ...................................................................................... 8

Operating system ........................................................................................................12

Product Specifications........................................................................................ 13

Display ........................................................................................................................13

Projection lamp ...........................................................................................................14

Projection lenses .........................................................................................................14

400 Series projection lens throw distances...................................................................15

I/O Panel description ...................................................................................................21

Compatibility................................................................................................................22

Video standards ..........................................................................................................23

Environmental .............................................................................................................23

Physical ......................................................................................................................24

Warranty .....................................................................................................................24

Audio...........................................................................................................................25

Software......................................................................................................................25

Regulatory and safety..................................................................................................25

Electrical .....................................................................................................................26

400 Series control features................................................................................. 28

Control types...............................................................................................................28

400 Series keypad and Executive Plus remote control .................................................29

400 Series user interface.............................................................................................31

Controlling the 400 Series through command line interface (CLI) .................................37

400 Series Online Service Guide ii

Servicing and Maintaining the 400 Series ......................................................46

Safety Guidelines ................................................................................................ 47

Troubleshooting the 400 Series ......................................................................... 49

Diagnostic strategies ...................................................................................................49

Module substitution ..................................................................................................49

Dealing with intermittent problems..........................................................................50

400 Series user questions and answers.......................................................................51

Problems and Solutions...............................................................................................54

Cleaning the 400 Series projectors .................................................................... 62

Removing and Replacing Field Replaceable Units (FRUs)............................... 63

Introduction .................................................................................................................63

Focus and zoom rings .................................................................................................64

Rubber feet .................................................................................................................68

Front bezel ..................................................................................................................69

Rear bezel...................................................................................................................70

Lamp door...................................................................................................................71

Lamp module ..............................................................................................................72

Top case .....................................................................................................................74

I/R window...................................................................................................................76

Micro-fan.....................................................................................................................77

Lamphouse .................................................................................................................79

Thermal switch ............................................................................................................81

Speaker.......................................................................................................................83

Keypad ECA................................................................................................................85

Formatter ECA and formatter bracket ..........................................................................87

Photodiode..................................................................................................................93

I/O EMI shield..............................................................................................................95

Controller ECA ............................................................................................................97

Power supply.............................................................................................................102

Optical engine ...........................................................................................................104

Base EMI shield ........................................................................................................107

Elevator.....................................................................................................................109

Bottom case ..............................................................................................................111

Upgrading the Software in the 400 Series ....................................................... 112

Getting the software upgrade file ready to install in the projector ................................113

Connecting the projector to the computer with CableWizard2.....................................114

Installing the software on the projector.......................................................................114

Confirming the software upgrade ...............................................................................116

400 Series Online Service Guide iii

Performing Functional Tests on the 400 Series .............................................. 117

Required equipment ..................................................................................................117

Functional tests required for the 400 Series...............................................................117

Projector setup and external inspection .....................................................................118

Projector start-up sequence.......................................................................................119

RGB video and audio quality .....................................................................................120

Composite and S-video quality ..................................................................................123

Keypad operation and user interface .........................................................................124

400 Series Parts Lists........................................................................................ 125

Introduction ...............................................................................................................125

FRU Parts Lists .........................................................................................................126

Standard Accessories................................................................................................132

Optional Accessories.................................................................................................134

Fasteners ..................................................................................................................136

Welcome to the 400 Series Service Resource Guide

Introduction This online service guide is designed to help you service the InFocus 400 Series. In this section, we’ll show you how we organized this guide and show you how to make the best use of the 400 Series Service Resource Guide.

The 400 Series Service Resource Guide is available for no charge on the InFocus Web site. You use Adobe Acrobat 3.0 or higher to read and print the service guide. It includes a standard table of contents and page numbers. See ‘Using the 400 Series Service Resource Guide’ later in this chapter for more information about using the guide.

Special Note—Remember to check the ASP Resource Center at the InFocus Web site for updated information about the 400 Series. (http://www.infocus.com/service/asp)

How we organized the guide

You’ll find the 400 Series Service Resource Guide is organized a little differently than the InFocus online guides you’re accustomed to using. We’ve included a lot more information in this service resource guide, and we’ve made it easier to find what you need.

Here’s how the information in this guide is organized:

400 Series Product Information

♦ Product overview

♦ Detailed product description, including a block diagram and platform description

♦ Product specifications

♦ Control functions of the 400 Series, including remote and keypad description, user interface, and CLI controls

Servicing and Maintaining the 400 Series

♦ Safety precautions

♦ Troubleshooting

♦ Removal and replacement of field replaceable units (FRUs)

♦ Software upgrades

♦ Functional tests

♦ Parts lists

400 Series Service Resource Guide 1

www.infocus.com/service/asp

—

rd

Using the 400 Series Service Resource Guide

You can use the 400 Series Service Resource Guide as an online Adobe Acrobat document or you can print theguide and use it as a book.

Moving pages on the screen

Most pages, including this one, require you to scroll the page down to see all the text and illustrations. To movea page up or down on the screen, place the pointer over the screen. The pointer turns into a hand . Click anddrag to move the page up or down.

Some topics in the guide continue from one page to another. If you place the pointer over a page and see theArticle Tool , just click to automatically view the next page. When you reach the end of the topic, youautomatically return to the beginning.

If you prefer to move the page without automatically going to the next page, just click and drag the page up anddown.

Moving from topic to topic

When you open the 400 Series Service Guide in Adobe Acrobat, you see the service guide on the right-handportion of your screen. On the left-hand portion you see a column of ‘bookmarks’ in the form of an outline. Thebookmarks denote each topic in this guide.

To go to a topic, click the bookmark on the left side of the screen. For example, to see the topic, ‘400 SeriesParts,’ click its bookmark.

Tip—Some topics are too long to read in the left-hand column. To see all the text in the topics, place thepointer over the border between the left and right columns. When the pointer turns into a two-headed pointer( ), drag the divider to the right until you can read the topics. The page on the right side automatically

adjusts as you move the divider. You can move the divider back any time you wish.

Some topics, usually chapter titles, have a caret ( ) next to them. The caret means that the topic has subtopicsor indented topics. You can show or hide the subtopics by clicking the caret. For example, to show all the FRUremoval and replacement procedures, click the caret next to the FRU R&R. Or to see an illustration for aprocedure, click the caret next to it. To hide the list of procedures or the illustration, click the caret again.

You can also use the Adobe Acrobat toolbar to move from topic to topic. Most often, you’ll use it to retraceyour steps back through a series of topics. Acrobat remembers up to 64 views, so if you get lost you can clickthe Go Back button to go backward one screen at a time. Continue clicking the button until you find the pageyou want.

Once you return to a page, you can reverse direction and return to where you started by clicking the Go Forwabutton . Each time you click the Go Forward button, you move one view forward.

Note—If the Go Back button is not available, you have returned to the point where you began. If the Go

Forward button isn’t available, it means that the current page is where you left off.



Conventions we use

To make it easier to find information as well as to highlight notes and cautions in the 400 Series service resource guide, we use several conventions.

Notes, tips and cautions

Sometimes there is information we want to make sure you notice. It might be tip or a note about a procedure. Or it may be a warning or caution about a condition that could harm you or the projector. We set notes and cautions off with top and bottom blue lines, as well as a distinctive pointing finger icon.

Here’s an example of a note:

Note—You can also download a calculator from the InFocus Web site to determine image sizes for specific throw distances. (http://www.infocus.com/service)

We make cautions and warnings stand out by making the text red.

Warning—Unplugging the projector, turning the computer off, or unplugging the CableWizard while the upgrade files transfer can damage the controller ECA. Make sure the projector and the computer are stable and that all cables are tightly plugged into both machines at the proper locations.

Continued icon

Often, a topic or procedure will cover more than one page or screen. To let you know that there is more information on the next page or screen, we use a small pointing finger icon near the bottom of the page.

Hyperlinks

We encourage you to make use of the information we place on our Web site. Often, you’ll find updates to service guides as well as late breaking information.

You’ll recognize a link to the InFocus Web site whenever you see blue, underlined text. If you’re working online, your pointer will turn into a finger when you place it over the hypertext. Just click to open your Web browser and automatically go the InFocus Web site (this assumes you have an Internet connection). If you’re working with a printed copy of the guide, we also include the address in parentheses.

For example, Software/Downloads (http://www.infocus.com/service/software)

Note—To make full use our Web site, InFocus recommends that you use version 4.0 or later of Microsoft

Internet Explorer or Netscape Navigator.

Printing the 400 Series Service Guide

We’ve set up the online service guide so that you can print the entire document and convert the guide into a book. You’ll find a table of contents, as well as page numbers on each page. The guide is set up to print on 8½ x 11 paper, a good format for three-ring binders.

To print the 400 Series Service Resource Guide in Adobe Acrobat, click Print on the File menu. Make sure your printer is selected and that the entire guide (or the portion you want) will be printed. For the best results, we suggest you print the guide on a laser printer at 600 dpi. That way, the illustrations will be sharper and more detailed.

http://store.infocus.com/service/software

http://store.infocus.com/service/home/index.htm


400 Series Product Information

N THIS PORTION OF THE GUIDE, YOU’LL FIND INFORMATION to help you become familiar with the 400 Seriesbefore you begin the repair effort. Here are the sections in the chapter:

♦ A product overview, a short description of the distinctive features of the 400 Series;

♦ A product description, including a block diagram and functional descriptions of the major hardwarecomponents and operating system;

♦ Product specifications, including projection throw distances and the I/O panel layout.

♦ Control functions, including keypad and remote keys, the user interface, and the command line interfacemode.

I

ge

LP425

LP435z

Product Overview

The 400 Series represents the industry standard for ultra-light presentation projectors. The projectors weighapproximately seven pounds, and they measure roughly the size of a laptop computer. The 400 Series ofprojectors use DLP (digital light processing) technology from Texas Instruments.

All 400 Series projectors easily connect to either a laptop computer or an InFocus LiteShow Pro PresentationPlayer. All the projectors have one internal speaker, and don’t include an audio out jack.

Below are short descriptions of the five projectors that comprise the 400 Series.

LP420 and LP425

The LP420, released in late 1997, was the first projector in the 400 series. Itproduces 500 lumens, weighs 6.8 pounds, and projects a native 800 x 600 SVGAresolution. The LP420 expands 680 x 480 SVGA and compresses 1024 x 768images.

The 420 has a fixed .85:1 projection lens and one internal speaker. There is noaudio out jack on the I/O panel. The projector shipped with the CableWizard Liteconnection system.

In mid-1998, InFocus released the enhanced LP425. The LP425 featured a higher light output of 700 lumens,due to refinements in the optical engine. The 425 also added the option to flip its image so it could be ceilingmounted. Otherwise, the LP425 retained the same features as the LP420.

LP400

The LP400 continues the low-cost, ultra portable tradition set by its predecessors. Offered as a low-costalternative to the zoom models, the LP400 produces 800 x 600 SVGA images at 700 lumens. The LP400 shipswith a more limited set of cables than do others in the 400 Series. The primary difference between the LP400and earlier models is that the 400 uses the newer Windows-style menus in the user interface.

LP425z and LP435z

The two zoom models in the 400 Series produce brighter images than the LP400,due to an improved optical path and brighter lamp. The LP425z generates 900lumens, while the LP435z produces 1,000 lumens.

The lens on these two models, a 1.3:1 manual zoom, provides extra flexibility ata very small size and weight gain. Both projectors weigh only 7.4 pounds, andare but .7 inch longer and .1 inch taller than the non-zoom projectors.

The SVGA resolution of the 425z’s projected image is 800x600. Screen resolutionsbetween 800x600 and 1024x768 are compressed to 800x600. The XGA resolution of the 435z’s projected imais 1024x768. The 435z expands 680 x 480 and 800 x 600 images to 1024 x 768. Neither the 425z nor theLP435z can compress images larger than 1024 x 768.

The CableWizard3 connection system ships with both the LP425z and LP435z. With the optionalCableWizard2, the two projectors can be controlled via CLI.



Product DescriptionIn the following section, you’ll find out how the major hardware components function in the 400 Series. Thesection begins with a block diagram. Following that, you’ll see descriptions of the hardware componentscontained in the block diagram.

Here’s how we organized this section:

♦ 400 Series block diagram, including the I/O panel, keypad ECA, audio system, controller ECA, and powersupply.

♦ Hardware platform, including controller ECA, formatter ECA, optical engine, lamp, power supply, keypadECA, remote control and fans.

♦ Operating system


400 Series Block Diagram for projectors using the Peng/Guin chip set

Below is a block diagram of the 400 Series controller ECA, keypad ECA and power supply.

1 PLL XGA = 12-80 MHz PLL SVGA = 12-60MHz

RX

Overlay FB1 MB x 16 (2 MB)68331 Sys Ram

16 bit Data12 bit Addr/Crtl

I 2C

Power Supp ly

Peng

Genes isSpar tan

XGA Res i zeEng ine

Guin

SDRAM ARRAY

SDRAM

I m a g eCap tu re

M e m o r yContro l ler

Imageclock1

68331

256Kx16Flash

24

Different ialRece iver

24 BitA/D

Up to80MHz

24bitRGB

24bitRGB

6 8 3 3 1Inter face

Log i c /Regs

CLK

FBK

REF

RGB

100 MHzOscillator

System clock

Dig

ital V

ideo

Bus

NTSC/PAL/SECAMDecoder

FormatterECA

Swif tA S I C

4 0 0 M H z

DifferentialInputs

68331 System Ram islocated in the OSDframe buffer memorychip.

PS/Controllerconnector

+3.3V

Keypad backlight/indicator LED

Remotemicro-

Controller

IRremotemousecontrol

Onboardkeypad(7 keys) Key interrupt

Key scan

IR receiver

AudioProcessor

AudioCircuitEQ/LIM

AudioAmplifier

Cab

leW

izar

dC

onne

ctor

L+R Audio

Dif f RGB

L+R

Internalspeaker

H s y n c

C s y n c

V s y n c

SVHS

Composite

Keypad ECA

I 2C

24 Bit

Micro-fan

+5V

+12V

+8.5V

+8.5V

L ampenable

LampLit

Lam p

L a m p H V

ThermalSwitch

Reset

Stereo TVaudio input

Computerstereo input

RL

RL

TX

Image FB1MB x 48(6MB)

48 bit data12 bit Addr/Crtl

P L LContro l ler

Cont ro lReg is te r

M e m o r yContro l ler

6 8 3 3 1Inter face

Log i c /Regs

Disp layContro l ler

S ta tusReg is te r

LampLit

LampEnable

D M D

Display blanking

Indicators

Other controls

Outputs detect

Input detect

Other status

32 KHz Osci l la tor(XGA)

21 KHz Osci l la tor(SVGA)

6 8 3 3 1 B u s

Displayclock 2

Power OKLamp L i tPS temp

Lamp Enab le

2 XGA = 55 MHz SVGA = 40 MHz

24 Bit

Microcontroller

S

CLIinput

RX

I2C

Power Supply

ColdfireMicroprocessor

8 MbitFlash

D-24b RGB

Triple100 MHz

ADC

Dig

ital V

ideo

Bus

MicronasVideo

Decoder

Bus

Formatter ECA

PS/Controllerconnector

+3.3V

Keypad backlight/indicator LED

Onboardkeypad(7 keys) Key interrupt

Key scan

IR receiver

AudioProcessor

AudioCircuit

EQ/LIM

AudioAmplifier

Cab

leW

izar

dC

onne

ctor

L+R AudioL+R

Internalspeaker

HsyncVsync

SVHS

Composite

Keypad ECA

I2C

24 Bit

Micro-fan

+5V

+12V

+8.5V

+8.5V

Lampenable

LampLit

Lamp

Lamp HV

Reset

Stereo TVaudio input

Computerstereo input

RL

RL

TX

LampLit

LampEnable

DMD

25 KHzOscillator

Power OKLamp LitPS temp

Color Wheelsensor

8 Bit

Microcontroller

BuzzardASIC

16 MbitSDRAM

Uclk

PLL

Vclock

Sync

Dclk72 MHz

LP4xx Buzzard Board Block Diagram

SwiftAnalogASIC

RG

B

ThermalSwitch

Safetyinterlock

Digital toAnalog

Converter

Speedcontrol

ut

iven

the

Hardware platform description

Controller ECA

The controller ECA contains circuitry that manages the major functions of the 400 Series projectors, includingvideo and computer signal processing, audio input, and keypad and IR signal processing. The controller ECAalso has the I/O circuitry to which the user connects peripheral devices. The controller ECA is one of twoInFocus boards in the 400 Series—the keypad ECA is the other. The formatter ECA, which translates the outpfrom the controller into digital images, is made by Texas Instruments.

The MC68331 microprocessor

A Motorola MC68331 processor controls the 400 Series system functions, including the four chips responsiblefor video processing, as well as the audio processor. The processor operates on 5.0 VDC power at a clockfrequency of 20.97 MHz (SVGA) or 32.768 MHz (XGA).

The MC68331 reads and writes to all of the system peripherals to control system functions through its 16-bitdata bus or two-wire I2C bus. The audio, video, and keypad all have I2C connections that allow the MC68331 tocheck status, change modes and initialize the devices. The MC68331 connects directly to the Flash ROM,EEPROM, and the Peng and the Guin ASICs. The MC68331 also provides the ability to draw menus. Itaccomplishes this by writing data directly to the Guin Overlay Frame buffer.

TV video input from the S-video and composite connectors

The I/O panel on the controller ECA includes a composite video input and an S-video input. The compositevideo input is an RCA jack (yellow), which is compatible with the vast majority of video players. A standardmini-DIN S-video connector provides another, high quality signal input.

If both composite and S-video sources are plugged in, the system software selects the S-video port as the actone. The video decoder section does the actual selection of which video input to use for display. The I/O sectiotransmits the signals to the TV decoder section at all times. Both inputs are hard-wire terminated in 75Ω. ESDprotection is provided for both video inputs to protect the input stages from externally produced discharges.

The signal from either source is sent through a decoder and on to the digital video bus.

RGB input from the CableWizard connector

From the CableWizard input, a differential RGB signal goes to the input formatter (the Swift ASIC). This chiplooks at the vertical, horizontal, and composite signal synchronization. From there, the signal is converted to a24 bit digital signal and sent to Peng chip via the digital video bus.

The CableWizard connector also accepts differential inputs for direct processing. A software lookup table isused to determine what type of signal is present. The input formatter sets up a phase lock loop and locks ontofrequency.


me

ds

ing x

t

the

at

Video processing

From the digital video bus, the signal next goes to the frame memory in the Peng ASIC in the form of a 24-bitRGB input. Peng manages the frame buffer to perform frame rate conversion. The frame memory isasynchronous, meaning the input rate is different than the output rate. From this point on the vertical andhorizontal frequencies will not change. They remain at the 50-60 Hz range required by the DMD. The framememory accepts information a page at a time. When one page is displayed, another page is already in the frabuffer.

In the LP435z, which has a native 1024 x 768 XGA resolution, video inputs of 800 x 600 and lower areconverted by the frame buffer to 60 Hz frame rate (except PAL which is frame locked at 50 Hz). The converteframes are then passed to the Spartan ASIC for resizing up to 1024 x768. The LP435z does not resize imagelarger than 1024 x 768.

In the 800 x 600 SVGA 400 Series models, 1024 x 768 resolution is first resized down to 800 x 600 by dropplines and pixels, then converted by the frame buffer to 60 Hz frame rate, and finally passed to Spartan as 800600 at 60 Hz.

Video inputs of resolutions lower than 800 x 600 are converted by the frame buffer to 60 Hz frame rate (excepPAL which is frame locked at 50 Hz) and passed to the Spartan ASIC for resizing up to 800 x 600.

The Peng ASIC also provides the following support functions:

♦ Image position detection

♦ Programmable ADC black sample timing

♦ Video mode detection

♦ Control for the video input ports

♦ Sync decoding

♦ Black, white, and blank level detection

♦ Digital filter mode for noise reduction

♦ Four programmable timers

♦ PLL control for video capture clock

Next the 24-bit RGB output signal goes to the Spartan image resizing chip. The Spartan chip provides high-quality resizing of VGA, SVGA, NTSC, and PAL inputs up to the 1024 x 768 XGA display resolution. Spartanpasses XGA video from its input to output unchanged. Spartan does not resize down. Spartan also generatesdisplay timing signals (Vsync, HSync, and blanking) that are passed through the Guin ASIC to the formatterECA.

The Guin chip mixes colors by determining what color each pixel will be for each frame. There are only threecolors available. To make other colors, a pixel might be, for example, yellow for one frame, then off the next,then magenta for three frames, then off for three frames, and so on. Guin also contains an overlay memory thfeeds the formatter ECA. This allows the menus and the splash screen to appear on top of the image.



Formatter ECA

The formatter ECA processes rasterized video or computer signals it receives from the controller ECA intotimed, digital bitmaps that the optical engine can interpret. The formatter ECA also provides the power for thecolor wheel portion of the optical engine. The formatter ECA is built by Texas Instruments, the maker of someof the components in the optical engine.

Optical engine

The 400 Series uses Texas Instruments’ Digital Light Processing™ (DLP™) technology to display computerand video images on a projection screen. See the illustration below for a visual description of the DLP system.

The heart of the DLP is the digital display engine (DDE). The DDE translates rasterized images from computerand video sources into the digitized images that appear on the screen. In the DDE, light from the metal halidelamp first focuses through a condenser lens. It then passes through a color wheel spinning at 7,200 rpm. Theresulting light pulses concentrate on a micro-mechanical chip called the Digital Micromirror Device (DMD).The DMD converts the light into an extremely bright and crisp projected image.

The DMD chip is comprised of microscopic, square mirrors that reflect the light pulses. There is one mirror foreach pixel on the screen. (That’s 786,432 for the 435z, and 480,000 for the 400, 420, 425 and 425z)

To allow the image to duplicate a computer image or video image, each mirror moves +/- 10° on a microscopicgimbal (a type of hinge) so that it can be ‘on’ or ‘off.’ A mirror in the on position reflects the light through theprojection lens. A mirror in the off position reflects the light away from the lens.

The DMD depends on the formatter ECA to tell it which mirrors should be ‘on’ and which should ‘off.’ Thesemiconductor design of digital light processing allows for very rapid and precise calculations and controls. Theformatter ECA reloads the DMD chip more than 1,000 times per second. Thus the DMD can translate both stilland moving images from computers and video sources into very large, bright screen images with little or noimage degradation or flicker.

Formatter ECA

DMD*

Color wheel

Lamp

Condenser lens

Projection lens

Condenser lens

* The DMD is not mounted on the formatter ECA in 400 Series projectors.


Lamp

The 400 Series uses two different 270-watt metal halide lamps. The LP425z and LP435z use a brighter lampthan do the LP400, LP420 and LP425. Both lamps consist of an electrode surrounded by a gaseous medium,which are enclosed in a quartz glass envelope. The lamp glows when the built-in electrodes create an arc thatprovides light and ignites the gas in the lamp. This combination of the gas and the electrodes determines thecolor temperature (or whiteness), the brightness, and the overall life of the lamp.

Metal halide lamps offer an excellent balance of reliability, life expectancy and color reproduction. These lampsproduce excellent colors because these lamps generate very white light. Metal halide lamps allow a larger imagecolor range and more deeply saturated colors.

Power supply

The power supply provides DC electrical power to all the electrical components in the 400 Series. The unitcontains a ballast that provides high voltage necessary to strike the lamp when the projector is powered up. Theattached fan draws cooling air through the power supply, as well as through the rest of the projector.

Keypad ECA

The keypad provides the user access to all of the controllable functions on the 400 Series. It receives keypadsignals from the keypad attached to the top case, and then processes them before passing the signals to thecontroller ECA for command processing. The keypad ECA also contains an IR receiver that collects andprocesses the IR signal, which is then passed to the controller ECA. When the top case is secured to the bottomcase, the keypad elastomer and lightpipe (which are heat staked to the top case) are mated with the keypad ECA,which mounts on the controller ECA. When a key is pressed on the keypad, it completes a circuit on the keypadECA, and sends an interrupt to the microcontroller.

The keypad controller consists of a microcontroller that interprets the keypad signals. It interfaces directly withthe system processor via the system I2C primary bus. The microprocessor has its own firmware embedded tocarry out these functions.

Remote control

The Executive Plus remote control ships with the LP425z and LP435z and is compatible with the other 400Series projectors. The remote uses infrared (IR) technology to allow the user to control the projector from adistance. Infrared is a technology where commands are sent from the remote to a projector (or television, VCRor DVD) via infrared light waves.

The information is sent as a transmission code (infrared serial data) modulated onto an infrared carrier. Theinfrared information itself is a set of modulated pulse strings where specific patterns represent specificcommands (such as Volume Up or Freeze). Infrared signals can travel through the air up to 50 feet (16 meters)and must be line of sight. Hardwired IR signals can travel up to 2,500 feet (800 meters) through 22-gauge wire.The signal pulses are the same whether sent through the air down a wire.

Once the IR pulse string arrives at the projector, it passes through the IR window on the top case. It then passesthrough a light pipe, and then strikes the IR receiver on the keypad ECA. From the IR receiver, the signal passesto the keypad microcontroller, where it is processed. From the keypad ECA, the processed signal travels to thesystem processor on the controller ECA via the I2C bus.


Fans

There are two fans in the 400 Series projectors. One fan, fastened to the front of the power supply, exhaustswarm air generated by the DMD portion of the optical engine through the front bezel. The other fan, whichfastens to the front of the power supply, draws air through the power supply, then blows it on the lamp.

Operating system

Flash EEPROM device

The 400 Series stores its start-up and operating software code in a flash EEPROM device located on thecontroller ECA. The flash EEPROM contains the following types of code:

♦ Boot code The boot code contains an index of the EEPROM memory addresses. It allows the 400 Series tobegin operating when powered up.

♦ System code The system code contains instructions required for system initialization and operation. As the400 Series initializes, the system code reads and verifies the integrity of other data stored in the EEPROM,such as lamp timer data and user-entered menu settings.

♦ Splash screen code The splash screen code contains the image for the start-up screen (‘splash screen’).

All three types of code can be upgraded by users or by service centers. The upgrade provides new instructionsthat enhance the 400 Series’ operation. Often the new code makes available new enhancement features.

For information and instructions on downloading and installing new flash code for the 400 Series, seeUpgrading the Software on page 72 or click Software Upgrades at the left.


Product Specifications

Display

Specification

Engine type DLP - Digital Light Processing using single-chip DMD (Digital Micro-mirror Device)

LP400 LP420 LP425 LP425z

800 x 600 SVGA Intelligent compression for 1,024 x 768 XGA. Resizing for 640 x 480 VGA and Mac computer images.

Resolution

LP435z 1024 x 768 XGA Resizing for 640 x 480 VGA, 800 x 600 SVGA and Mac computer images. No compression for images above 1024 x 768.

LP400 700 ANSI lumens, typical



LP425z 900 ANSI lumens, typical

Brightn ess

LP435z 1000 ANSI lumens, typical

Aspect ratio 4:3

Contrast ratio 200:1 (ANSI test pattern)

400:1 (White/Black)

Displayable color palette

16 million colors

Color temp erature 7800 K

RGB color depth 24 bits/pixel

Display modes Front, rear and ceiling mount projection modes

Response time 25 ms

LP400 LP420 LP425

White x=.2848 y=.3843

Red x=.6045 y=.3786

Green x=.2964 y=.6094

Blue x=.1423 y=.1005

Color coordinates

(with new lamp)

LP425z LP435z

White x=.290 y=.330

Red x=.615 y=.375

Green x=.330 y=.540

Blue x=.145 y=.070


Projection lamp

Specification

Lamp type 270-watt, user replaceable metal halide arc lamp

Note: the lamp used in the LP425z and LP435z (505-0452-xx) differs from the lamp used in the LP400, LP420 and LP425 (505-0304-xx). Using the 505-0304-xx in a zoom projector results in a dimmer image. Using at 505-0452-xx in a non-zoom model results in overheating.

Lamp life Effective lamp life: 1,000 hours. For maximum brightness, lamp should be replaced at 1,000 hours

Lamp Ignition 6 seconds (typical)

Minimum cool down period before restart

40 seconds

Projection lenses

Lens type Fixed focal length

Projection angle 18°. Not adjustable.

Projection ratio .85

Focus range 4.9 – 16.4 feet (1.5 – 5 meters)

Image sizes See 400 Series projection lens throw distances in this section for image size and distance-to-screen charts for all the 400 Series of projectors

Zoom projection lens Specification (for the LP 425z and LP435z)

Lens type 1.3:1 manual zoom

Keystone correct ion Built-in keystone-corrected projection angle of 18°. Not adjustable.

Projection ratio .48 – .63

F/stop f3.0

Focus range 4.6 – 16.4 feet (1.4 – 5 meters)

Image sizes See 400 Series projection lens throw distances in this section for image size and distance-to-screen charts for all the 400 Series projectors

Fixed focal length projection lens

Specification (for the LP 400, LP420 and LP425)


400 Series projection lens throw distances

The tables below help determine how far away the projectors in the 400 Series must be placed away from a screen to project certain image sizes.

This section is broken into two portions, one for the projectors with a fixed focal length lens, and one for projectors with a zoom lens.

For each type of the lens, you’ll find two types of tables. The first assumes you have a screen size you want to fill; it shows how far away the projector must be placed. The second type of table assumes you want to know the resulting image size when you place the projector a certain distance from the screen. Both types of tables are shown in both English and metric measurements.

The projection distances below are approximate, due to lens manufacturing variances.

Tip—InFocus recommends that you not mount a projector at its maximum or minimum zoom setting. Also, when possible, place the projector as close to the screen as feasible. The closer the projector, the brighter

the image.


LP400, LP420 and LP425 with the fixed focal length lens

In the tables below, the screen sizes are listed in the left column. The diagonal measurement is listed first, and the screen height and width is listed in parentheses.

The second column shows how far away from the screen you need to place the projector to fill the corresponding screen.

Note—To calculate the image size from a specific throw distance for fixed focal length lens, do the following. Multiply the distance between the screen and the projector times .85. This gives you the diagonal image size. For example, if an LP400 is 6 feet from the screen, the resulting diagonal image size will be 5.1 feet. You can also visit the InFocus Web site and download a calculator (http:/www.infocus.com/service) that gives you diagonal, horizontal and vertical image sizes.

Throw distances for standard screen sizes

SAE

For these screen sizes… (diagonal measurement [H x W] in inches*)

The projector must be placed this far from the screen… (in feet and inches)**

50 (30x40) 4.9'

60 (36x48) 5.8'

67 (41x54) 6.5'

72 (43x57) 7'

84 (50x67) 8.25'

96 (57x77) 9.4'

100 (60x80) 9.75'

120 (69x92) 11.75'

125 (75x100) 12.25'

135 (81x108) 13.2'

140 (84x112) 13.75'

150 (87x116) 14.7'

* Projection screen dimensions typically are listed in inches, rather than feet and inches.

** The actual focus range of the 400 Series projectors with a fixed focal length lens is from 4.9 to 16.4 feet.



Throw distances for standard screen sizes, continued

Metric

For these screen sizes… (diagonal measurement [H x W] in centimeters*)

The projector must be placed this far from the screen… (in centimeters)**

101 (61 x 81) 119

127 (76 x 101) 149

152 (91 x 122) 179

170 (104 x 137) 200

183 (109 x 145) 215

213 (128 x 170) 250

244 (146 x 196) 287

254 (152 x 203) 299

305 (183 x 244) 359

318 (190 x 254) 374

343 (206 x 274) 404

356 (213 x 284) 419

381 (229 x 305) 448

* Projection screen dimensions are typically listed in centimeters, rather than meters.

** The actual focus range of the 400 Series projectors with a fixed focal length lens is from 1.5 to 5 meters.


LP425z and LP434z with the manual zoom lens

In the tables below, the screen sizes are listed in the left column. The diagonal measurement is listed first, and the screen height and width is listed in parentheses.

The second column shows how far away from the screen you need to place the projector to fill the corresponding screen.

Note—Even though both the LP425z and the LP435z use the same projection lens, they project different image sizes from the same throw distance. This is due to the different resolutions—800 x 600 for the LP425z and 1024 x 768 for the LP435z. The XGA image contains 28 percent more pixels than the SVGA image.

Likewise the LP435z image is 28 percent larger than the LP425z image at the same throw distance.

Throw distances for standard screen sizes

SAE

* Projection screen dimensions typically are listed in inches, rather than feet and inches.

** The actual focus range of the 400 Series projectors with a zoom lens is from 4.6 to 16.4 feet. The image deteriorates as the projector is moved beyond the lens’ maximum focus distance, although individual users may find it acceptable.

For these screen sizes… (diagonal measurement [H x W] in inches*)

The LP425z must be placed within this range… (in feet)**

The LP435z must be placed within this range… (in feet)**

50 (30x40) 6.6 – 8.7 5.1 – 6.8

60 (36x48) 7.9 – 10.4 6.2 – 8.2

67 (41x54) 8.9 – 11.6 6.9 – 9.2

72 (43 x 57) 9.5 – 12.5 7.4 – 9.8

84 (50x67) 11.1 – 14.6 8.6 – 11.5

96 (57x77) 12.7 – 16.4 9.9 – 13.1

100 (60x80) 13.2 – 17.4** 10.3 – 13.7

120 (69x92) 15.9 – 20.8** 12.3 – 16.4

125 (75x100) 16.5 – 21.7** 12.9 – 17.1**

135 (81x108) 17.8 – 23.4** 13.9 – 18.4**

140 (84x112) 18.5 – 24.3** 14.4 – 19.1**

150 (87x116) 19.8 – 26.0** 15.4 – 20.5**


Throw distances for standard screen sizes, continued

Metric

For these screen sizes… (diagonal measurement [H x W] in centimeters*)

The LP425z must be placed wit hin this range… (in centimeters)

The LP435z must be placed wit hin this range… (in centimeters)

127 (76 x 101) 200 – 256 157 – 208

152 (91 x 122) 241 – 317 188 – 249

170 (104 x 137) 271 – 354 210 – 279

183 (109 x 145) 290 – 381 226 – 300

213 (128 x 170) 338 – 445 263 – 349

244 (146 x 196) 387 – 500 301 – 400

254 (152 x 203) 402 – 530** 314 – 416

305 (183 x 244) 484 – 633** 376 – 500

318 (190 x 254) 503 – 66** 393 – 521**

343 (206 x 274) 542 – 713** 423 – 562**

356 (213 x 284) 564 – 74** 440 – 584** `

381 (229 x 305) 604 – 792** 470 – 625**

* Projection screen dimensions are typically listed in centimeters, rather than meters.

** The actual focus range of the 400 Series projectors with a zoom lens is 1.4 to 5 meters. The image deteriorates as the projector is moved beyond the lens’ maximum focus distance, although individual users may find it acceptable.


Calculating image sizes for the LP 425z and LP435z

To calculate the range of image sizes from a specific throw distance for the LP425z or LP435z, do the following.

Note—The following procedures use SAE measurements. The calculations for metric measurements are the

same.

For the LP425z

1 Multiply the distance between the screen and the projector times the maximum zoom lens setting (.48).

2 Multiply the distance by the minimum zoom lens setting (.63).

This gives you the range of diagonal image sizes possible from one location.

For example, if the projector is placed 7 feet away from the screen, multiply 7 x .48 to get 3.3 feet (about 3' 4"). Then multiply 7 x .63 to get 4.4 feet (about 4' 5"). This is the range of diagonal image sizes possible from a distance of 7 feet.

3 If you want to calculate the horizontal and vertical image sizes, do the following:

For the horizontal image size, multiply the diagonal size by .8.

For the vertical image size, multiply the diagonal size by .6.

Using the above example, if an LP425z is 7 feet from the screen and the zoom lens is set to the maximum image size, the diagonal image is 4.4 feet. The vertical image size is 2.6 feet (4.4 x .6). The horizontal image size is 3.5 feet (4.4 x .8).

For the LP435z

The LP435z is a higher resolution projector, and thus produces a 28 percent larger image at the same distance and zoom setting than the LP425z. To calculate the image dimensions for the LP435z, do the following.

1 First follow the above procedure to arrive at the diagonal, vertical and/or the horizontal image dimensions for the LP425z.

2 Add 28 percent to each dimension to arrive at the image size for the LP435z.

In the above examples, we arrived at image dimensions of 4.4 x 3.5 x 2.6 feet for the LP425z. Adding 28 percent to each of these, you get 5.6 x 4.5 x 3.3 feet for the LP435z.

Note—You can also download a calculator from the InFocus Web site to determine image sizes for specific

throw distances. (http://www.infocus.com/service)



I/O Panel description

Specification

S-video input Input from S-video source, including VCR, DVD or laser disc player

Connector type: round mini-DIN, 4-pin receptacle

Computer input (CableWizard connector)

Input includes RGBHV signal from computer 1, computer audio and mouse (if attached to CableWizard2 or CableWizard3 mouse port). Output includes monitor and power for CableWizard.

Connector type: 36-pin IEEE-1284

Composite video input (available when S-video source not c onnected)

Input for video from VCR, DVD or laser disc player

Connector type: yellow RCA receptacle

Stereo a udio input Separate left and right input from stereo audio source, including VCR, DVD, laser disc or other

If only one channel is detected, signal is routed to both channels as mono.

Connector type: white RCA receptacle (left), and red RCA receptacle (right)

I/O Panel Conne ctors

Illustration legend

1 Round Mini-Din 4-pin receptacle for S-video TV input

2 Yellow RCA receptacle for composite TV input

3 White (left) RCA receptacle for TV stereo audio input (also used for monaural input)

4 Red (right) RCA receptacle for TV stereo audio input

5 Cable Wizard 36-pin IEEE-1284 type (includes RGBHV and computer audio input, and mouse output for Computer. Connection location for CableWizard Lite, CableWizard3 and CableWizard2.)

6 3.5mm, 3-pin mini-receptacle for stereo audio input

1 2 4 5 63


Compatibility

Specification

Computer compatibility XGA, SVGA, VGA

PC and Macintosh (CableWizard2 required for Mac mouse operation)

Computer compatibility method

Plug-and-project auto synchronization, auto tracking, auto positioning, auto source detect, and auto black/white level detect.

Auto adjustment within 10 seconds with a new source and 2 seconds when switching between connected sources.

Workstat ion compatibility

The 400 Series is workstation compatible if computer can run at 1024 x 768 XGA. Must use CableWizard2 and adapters.

Video compatibility NTSC: M, 4.43

PAL: B, G, I, M, N

SECAM

Video compatibility method

Fully automatic standard detection.

Auto adjustment within 10 seconds with a new source and 2 seconds when switching between connected sources.

Video resiz ing Line doubling used to resize video images. All video modes completely fill the screen.

Computer compatibility range (for optimal performance)

24.83 to 68.85 kHz horizontal scan rate

57 to 87 Hz vertical refresh rate

(640 x 480 through 1024 x 768)

Computer synchronization formats (interlaced and non-interl aced)

Separate HSync & Vsync

Digital Composite Sync

Composite Sync on Green (not all SOG modes supported)

Computer (RGB) Input Formats

Non-interlaced or 2:1 interlaced signals.

TV Interlaced to non-interlaced convers ion

Field line doubling through interpolation.

CableWizard systems Compatible with CableWizard2, CableWizard3 and CableWizard2 Lite systems.

Not compatible with CableWizard 1.

Remote controls Compatible with Executive Plus Remote, LaserPro Remote, GyroPoint Pro II RF Remote.*

* InFocus offers the GyroPoint Pro II Remote as an optional accessory. For technical support, call the IXMICRO Customer Support line in the United States at 888-467-8282 or 1-408-369-8282.


Video standards

Specification

PAL Phase Alternate Line.

The standard color system used throughout western Europe, except in France. The phase of the color carrier is alternated from line to line. It takes four full pictures for the color to horizontal phase relationship to return to the reference point. This alternation helps cancel out phase errors. For this reason the hue control is not needed on a PAL TV set. PAL, in many forms is used in Australia, England, Scandinavia, South Africa, and Western Europe. PAL uses 625-line, 50-field composite color transmission system.

PAL M is the standard system in Brazil. It uses an interlaced format with 25 frames per second and 625 lines per screen.

SECAM Sequential Couleur Avec Memoire (Sequential Color with memory).

A composite color transmission system that potentially eliminates a need for both a color and hue control on the monitor. One of the color difference signals is transmitted on one line and the second is transmitted on the second line. Memory is required to obtain both color difference signals for color decoding. This system is used in France, Africa, Asia, Russia, Saudi Arabia and other Eastern European countries. Similar to PAL, but produces color signals in a different manner—625 horizontal scan lines, 50 fields per second (625/50).

NTSC National Television Standards Committee.

The television analog standard for North America and parts of South America having 525 lines/60 Hz (60 Hz refresh). Two fields per frame and 30 frames per second.

NTSC Broadcast 4.2 MHz standard, 366 lines NTSC S-Video SVHS 5.5 MHz standard, 440 lines NTSC Component DVD 6.25 MHz standard, 500 lines DTV/HDTV 1920 x 1080i (pixels) interlaced standard, 960 lines

Environmental

Environmental Specification

Noise 43 dB, maximum from 3 feet (1 meter)

Temperature

Operat ing 32° – 104° F (0° – 40° C)

Non-operat ing -68° – 158° F (-20° – 70° C)

Humidity

Operat ing 5% – 95% relative humidity, non-condensing

Non-operat ing 5% – 95% relative humidity, non-condensing

Altitude

Operat ing 0 – 10,000 feet (3,048 meters) at 40°C

Non-operat ing 0 – 40,000 feet (12,192 meters) at 70°C


Physical

Warranty

Physical Specification

LP400 LP420 LP425

4 (h) x 9.3 (w) x 11.8 (l) inches

9.75 x 22.5 x 30 cm

Dimensions

LP425z LP435z

3.9 (h) x 9 (w) x 12.5 (l) inches

9.9 x 22.9 x 31.8 cm

LP400 LP420 LP425

7 lbs. (3.18 kg) Weight

LP425z LP435z

7.4 lbs. (3.35 kg)

Projector Specification

LP420

One year on parts and labor (90 days on projection lamp)

LP400 LP425 LP425z LP435z

Two years on parts and labor (90 days on projection lamp)


Audio

Specification

System 1.5-watt audio amplifier with a single built in speaker

Monaural

Frequency response 300 to 5 kHz (± 3 dB)

Connections 3.5mm (1/8") auxiliary/computer audio input

Dual RCA audio inputs from a stereo audio source.

Line out The 400 Series does not include audio out capability.

Computer audio input impedance *

10K ohm nominal, AC coupled

Video audio input Impedance *

5K ohm, DC coupled

* For more audio electrical specifications, see Electrical specifications.

Software

Projector Specification

Flash ROM

Flash software includes boot code, system software and the splash screen.

Upgrade software, when available, is downloadable from the InFocus Web site.

InFocus uploads different software for the LP400, LP420, LP425, LP425z and LP435z.

Regulatory and safety

Specification

Safety UL1950 (USA)

c-UL (Canada)

TUV EN60950 (EC)

IEC 950 (EC)

NOM

Electromagnetic (EMI)

Electromagnetic Compatibility (EMC)

FCC part15, subpart J, Class A (USA) with IFS margin (5db) minimum.

EMC Directive CISPR Class A (EC) with IFS margin (5db) minimum.

C-Tick mark on shipping label for Australia.

EFT IEC 801-4 Level 3

Surge IEC 801-5 Level 3

ESD IEC 801-X Level 4

Electrical

Power supply Specification

Power supply type 100-240 VAC at 50-60 Hz operation

Power consumption 400 watts maximum

Power supply fuse rating 250 V, 6.3 A not user replaceable

AC line IEC, 3-pin jack

Line Voltage Switch Auto selection for 110/120 VAC or 220/240 VAC

Power Switch Rocker switch above power connector. Marked with ‘I’ (on) and ‘O’ (off).

Normal voltage range 90-132 VAC, 180-275 VAC

nominal 110/220 VAC

Line frequency 47-63 Hz, nominal 50/60 Hz

Inrush current 50 amperes maximum

Power line dropout, Vcc to digital electronics

Min. 2 cycles

IEC 1000-4-11, measured at low line.

Lamp flicker is acceptable during dropout.

Output voltages and currents Output Voltage Typical Min. Load Typical Max. Load

+5 V 1.5 A 2.5 A

+17 V .1 A 1.5 A

+12 V .1 A 1.0 A

-12 V .1 A .5 A

Maximum continuous output 40 watts

High voltage lamp ignition output 16-20 kV

High voltage pulse duration 200 Ns


Electrical, continued

I/O panel Specification

RGB Input Analog RGB: 0.5 V - 1.0 Vp-p, 75Ω

Sync on G: 0.3 Vp-p, 75Ω

Digital Sync: TTL input levels

Composite TV Input 1.0 Vp-p, 75Ω

S-Video TV Input Luminance: 1.0 Vp-p, 75Ω

Chrominance: 0.286 Vp-p, 75Ω

Video audio input

Impedance 5 kΩ, DC coupled

Maximum input voltage (LIN + RIN) PEAK < 4.5 V for THD ≤ 0.3%

(LIN or RIN) < 2.0 V for THD ≤ 0.3%

Sensitivity 100 mV at 1 kHz for 88 dB SPL at 1 meter

Computer audio input

Impedance 10 kΩ nominal, AC coupled

Maximum input voltage (LIN + RIN) PEAK < 4.5 V for THD ≤ 0.3%

(LIN or RIN) < 2.0 V for THD ≤ 0.3%

Sensitivity 100 mV at 1 kHz for 88 dB SPL at 1 meter



400 Series control features

Control types

Specification

User interface Dropdown menu structure allows user to change image and audio controls.

For information about the menus, see User Interface in this section.

Keypad 7-key onboard, backlit keypad.

For information about the keypad, see 400 Series keypad and Executive Plus remote control in this section.

LP425z LP435z

6-button IR Executive Plus remote control.

For information about the remote control, see 400 Series keypad and Executive Plus remote control in this section.

Remote control

LP400 LP420 LP425

No remote shipped with these projectors. The Executive Plus is an optional accessory.

Elevator Single button releases elevator foot. Allows 0 to 10 degrees

LP400 LP420 LP425

One focus ring on the projection lens. Focus and zoom rings

LP425z LP435z

Two concentric rings on the projection lens. The outside ring controls the focus. The inside ring controls the zoom, which adjusts the image size without affecting the focus.


400 Series keypad and Executive Plus remote control

The LP400 Series keypad and the Executive Plus remote that ships with the LP425z and LP435z share several of the same functions. You can change projector settings and control presentations with both the keypad and remote. However, there are several differences.

On the keypad, the volume can be adjusted directly by using the Volume + and Volume – keys. On the remote, though, you need to press the Menu button, then adjust the sound level on the Audio menu.

The keypad contains a Source button, which toggles the projector between an attached computer and a video source. The remote has separate Video and Computer buttons.

Finally, the remote contains a disc mouse, which is used to navigate the on-screen menus and to move the pointer in a projected computer image. The keypad uses the four function buttons that surround arrow LEDs to navigate through menus and move the pointer.

standby

computer

menu

video

Right mouse button

Disc mouse The left mouse button is locatedon the bottom of the remote.

The Executive Plus remote ships with the LP425z and LP435z. It also is available as an option for other 400 Series projectors.

menu

source

volume +volume -

standby

Mouse buttons

Power indicator LED

The four function buttons in the center act as navigation

buttons when the menus are open.

IR window

Onboard keypad


Keypad and remote functions

Executive remote control specifications

Remote Specification

Remote Range 25 feet maximum

Acceptance A ngle 360° horizontal, +15° vertical (90° vertical at <10 feet)

Batteries Two user-replaceable AAA batteries

Button Function

Volume up

(keypad only)

Raises the volume of the internal speaker and attached external speakers.

On the keypad, the Volume + button moves the pointer to the right when navigating the on-screen menus.

Computer

(remote only)

When more than one source (computer and video) is connected to the projector, pressing the Computer button activates the computer source.

Source

(keypad only)

Switches between an attached video source and an attached computer.

Also moves the pointer upward when navigating through the on-screen menus.

Menu Opens and closes the on-screen menus.

For more information about the on-screen menus, see 400 Series Interface.

Standby Turns the display and audio off and displays a blank screen for 15 minutes.

After 15 minutes, the lamp extinguishes if the Standby button isn’t pressed again. If Standby is pressed within 15 minutes, the projector returns to normal operations immediately. Click Standby Time on the Control menu to change the amount of time the projector remains in Standby.

On the keypad, the Standby button also moves the cursor downward when navigating the on-screen menus.

Video

(remote only)

When more than one source (computer and video) is connected to the projector, pressing the Video button activates the video source.

Volume down

(keypad only)

Lowers the volume of the internal speaker and attached external speakers.

On the keypad, the Volume – button moves the pointer to the left when navigating the on-screen menus.


400 Series user interface

The LP400, LP425z and LP435z feature a new user interface to control most functions of the projector. The new menu style resembles the familiar Windows-style of drop-down menus.

Note— The LP420 and LP425 use graphical tab style user interfaces.. The tab layout matches the dropdown menu structure with one exception. The LP400, LP425z and LP435z contain an additional Status menu. Most For information about changing settings on these projectors, see the user’s guides for the products or refer to the LP420/LP425 Service Guide. User guides are available at the InFocus Web site. (http://www.infocus.com/service/tech_library/user_guides)

To access the menus, press the Menu button on the keypad or the remote. Then use the disk mouse on the remote or the arrow keys on the keypad to navigate to a menu choice. When a menu choice is selected, the text turns red. To change a menu choice, click the right or left mouse button on the keypad or the remote. The mouse buttons move sliders in some menus (brightness and volume), select one of two choices in others (blue or black blanks screen, for example), or display one of several choices (Video Standard). Once the adjustment is made, use the disk mouse or arrow keys to navigate to another menu item.

After the required changes are made, press the Menu button again to accept the changes and close the menus.

There are five on-screen menus, the Display menu, the Audio menu, the Image menu, the Controls menu and the Language menu. The last item on the main menu bar is the Status menu. The Status screen tells you about the projector and the sources that are connected to it.

Display menu

Menu item Descript ion

Brightn ess Lightens or darkens the on-screen image.

Tint Adjusts the red-green color balance in NTSC images only.

Contrast Changes the degree of difference between light and dark areas.

Color Changes the amount of color saturation in composite or S-video images.

Blank Screen Changes the color of the blank screen to blue or black.

Reset All Resets all options (except Video Standard) to preset factory settings.

Display Audio Image Controls Language Status> >

Brightness

Tint

Contrast

Blank screen blue

Reset all

Color

http://store.infocus.com/service/tech_library/user_guides/index.htm



Volume

Treble

Bass

Audio menu

The Audio menu provides access to controls that adjust the volume and quality of audio from any source.


Volume Adjusts the volume up or down.

Treble Adjusts the level of the high frequencies.

Bass Adjusts the level of low frequencies.


Image menu

The Image menu is available for computer (RGB) sources only

Menu item Description

Auto Image Auto Image automatically adjusts tracking, signal synchronization and vertical and horizontal position for most computers. If the automatic tracking, synchronization or position is not acceptable for a given computer, turning off Auto Resize allows manual adjustment.

Auto Resize Auto Resize automatically resizes the image by scaling it up or down. It only affects computer images that are not SVGA (LP420, LP425, LP400, LP425z) or XGA (LP435x).

When Auto Resize is on, the projector makes the best fit of the image to the screen by either dropping or adding lines to the image. If this produces an undesirable result, turning off Auto Resize will either crop the image or make it smaller than the screen. However, the image will be sharp.

Manual Sync When Auto Image is off, allows manual synchronization adjustment. This control used when Auto Image is selected but the projected computer image still looks fuzzy or streaked.

Manual Track ing When Auto Image is off, allows manual tracking adjustment. This control is used when the Auto Image feature can’t properly track a source, resulting in evenly spaced, fuzzy, vertical lines, or a projected image that is too wide or too narrow for the screen.

Horizontal Position When Auto Image is off, allows manual horizontal positioning.

Vertical Position When Auto Image is off, allows manual vertical positioning.


Auto image on

Auto resize on

Manual sync

Manual tracking

Horizontal position

Vertical position


Control menu


Video Standard When in the Auto mode, the projector attempts to detect the video standard (NTSC, NTSC 4.43, PAL or SECAM) automatically based on the input signal it receives. (The input signals for SECAM, PAL-M and PAL-N can’t be automatically detected, and thus must be selected manually.) For more information about video standards, see Video Standards in this section.

Standby Time Allows the user to specify how long before the projector turns itself off after the Standby button is pressed on the remote or keypad. In standby mode, the lamp stays on and the blank screen is displayed. Standby mode allows a quick restart because the lamp doesn’t need to restrike. Select among 1, 5, 10, and 15 minutes and 1 and 2 hours by clicking either mouse button and cycling through the options.

Ceiling When selected, flips the image so the image appears correctly when the projector is mounted upside down on the ceiling. (does not apply to LP420)

Rear Project ion When selected, reverses the image so the image appears correctly when shown from behind a translucent screen.

Default Source Selects which source (computer or video) the projector checks first during the power-up sequence. Options include Computer 1 and Video.

Auto Source Select When selected, the projector automatically stays locked on to the active source, and the Source button on the keypad is disabled. When off, the user can switch between sources.

Display Messages When Display Messages is set to On, status messages such as No signal detected or Standby Active appear in the lower-right corner of the screen. When Display Messages is set to Off, the status messages don’t appear on-screen.

Display Startup Screen

When Display Startup Screen is set to On, the InFocus start-up screen appears when the projector starts up and remains on the screen until an active source is detected. When Display Startup Screen is set to Off, the projector displays a plain black or blue screen. For information about blue and black blank screens, see Display Menu in this section.


Video standard

Standby time 1 minute

Ceiling projection off

Rear projection off

Default source computer 2

Auto source select off

Plug and Play on

Display messages on

Display startup screen on


Language menu

Menu item Description

English Displays the on-screen menus in English

Francais Displays the on-screen menus in French.

Deutsch Displays the on-screen menus in German.

Español Displays the on-screen menus and Help screens in Spanish.


English

Francais

Deutsch

Espanol~


Status menu

The Status menu displays the Status Screen, which shows the current set up and conditions for the LP400, the LP425z and LP435z.


Lamp hours used Indicates how many hours the current lamp has been in use. The counter starts at zero hours and counts each hour the lamp is in use. The lamp counter must be reset manually when a new lamp is installed. For information about resetting the lamp counter, see ‘Removing and replacing the lamp module’ .

Computer resolution

Shows the currently selected computer’s resolution setting.

Horizontal refresh rate

Shows the currently selected computer’s vertical refresh rate.

Vertical refresh rate

Shows the currently selected computer’s horizontal refresh rate.

Mute status Indicates if the audio is muted.

Software vers ion Indicates the projector’s software version.

CableWizard vers ion

Indicates the software version of CableWizard connected to the I/O port.

Source Indicates the active source, Computer 1, Computer 2 or Video.

Display Audio Image Controls Language Status

Show status

Lamp hours used

Computer resolution

Horizontal refresh rate

Vertical refresh rate

Mute status

Software version

Cable Wizard version

Source

0059

800 x 600

50.71 KHz

75.04 Hz

off

1.8

3.0

computer

>


Controlling the 400 Series through command line interface (CLI)

Command line interface commands allow remote operation of the 400 Series via a control system or a single computer. This is especially important when the projector is permanently mounted and run from a different location. CLI allows an operator (or a control system) to query the projector to find out where a given setting (such as audio volume) is adjusted. The operator can then issue a command telling the projector to adjust the setting to a different level.

Connecting and configuring the computer

The RS-232/serial connection for the 400 Series is located on the PC side of the CableWizard2 connection hub. Use the serial cable (IFS part # 210-0107-xx) to connect the CableWizard2 to the serial port of the computer source.

Note—To control the 400 Series via RS-232 commands, you need to use CableWizard2 (SP-CW2). CableWizard3 (SP-CW3) and CableWizard Lite (210-0095-xx) do not support RS-232.

To control the 400 Series from an RS-232 control system, set the control system serial port settings to match the following communication configuration:

RS-232 Port Sett ings

Setting Value

Bits per second 19,200

Data bits 8

Parity None

Stop bits 1

Flow control None

Emulation VT100


Formatting co mmands for the 400 Series

All CLI commands consist of three alpha characters representing the function (BRT for brightness, for example), followed by a request. The commands are both enclosed in parentheses.

The read request

A read request tells the projector to look at a control function (such as brightness or volume) and respond with the current setting.

Here are some examples of read request commands:

Function Command Response

Brightness (BRT?) (0-22, 10)

Volume (VOL?) (0-80, 35)

Lamp Hours (LMP?) (0-9999, 421)

If you ask the projector what the current volume setting is (VOL?), the projector responds by telling you what the range of possible settings are, then adds the current setting (0-80, 35). In this example, you know the volume could be set at increments of 0 through 80, and that the current volume setting is 35.

The write request

You use the write request to tell the projector to change a setting. Some CLI commands have ranges, while others are absolute (Freeze or Mute, for example, are on or off). If the projector receives a write request for a number greater than the maximum range, the setting automatically changes to the maximum possible adjustment.

When the projector receives a command, it returns an ‘echo’ of the command as a confirmation. If the projector receives a command it doesn’t understand, it returns a question mark (?).

With absolute settings, 0 (zero) is off, and any other number (1 through 9999) is on. The one exception is the Power command, where 0 is off and 1 is on.

Tip—To make sure the projector has time to process a command, wait three seconds before entering the next command.

Below are some examples of write requests.

Function Command Response

Brightness (BRT10) Sets the brightness to 10.

Freeze (FRZ1) or (FRZ8888) Freezes the display.

Power on (PWR0) Turns lamp off.

Power off (PWR1) Turns lamp on.


CLI commands for the LP420

The commands and values apply to the LP420 with version 1.8 software or higher. The version number of the software is the first number listed in the upper right corner of the on-screen menu. Command values for LP420s with earlier software versions may vary. If an LP420 does not have version 1.8 software or higher, go to Software/Downloads (http://www.infocus.com/service/software) to download and upgrade the projector software.

The tables below show all the CLI commands available for the 400 Series models. The first column lists the function or setting for the command. The middle column lists the three-character command for the function or setting. The third column lists the range (where a setting can be adjusted) or the on (1) and off (0) settings. When a command is read-only (for example, the lamp clock), it’s noted in the first column.

Note—The LP420 cannot be mounted on the ceiling because its software doesn’t allow the image to be flipped.

Function Command Range

Data source (computer)

Min-Max, initial value

Video source


Brightness (“BRT”) 0-63,32 0-255,128 or 112

Tint (“TNT”) 0-63,32 0-63,32

Contrast (“CON”) 0-63,32 0-127,71 or 64

Saturation (“CLR”) N/A 0-63,41

Video Format (“VSU”) N/A 0-6,0

Volume (“VOL”) 0-80,40 0-80,40

Balance (“BAL”) 0-31,16 0-31,16

Treble (“TRB”) 0-14,7 0-14,7

Bass (“BAS”) 0-14,7 0-14,7

Fade (“FAD”) 0-31,16 0-31,16

Mute ("MTE") 0-1,0 0-1,0

Manual Tracking ("MTS") 0-63,32* N/A

Manual Sync ("MSS") 0-19,10* N/A

Horizontal Position ("HPS") 0-63,32* N/A

Vertical Position ("VPS") 0-63,32* N/A

http://store.infocus.com/service/software/index.htm


CLI commands for the LP420, continued




Video source


Auto Source ("ASC") 0-1,0 0-1,0

Default Source ("DSC") 0-1,0 0-1,0

Blank Screen ("BSC") 0-1,0 0-1,0

Menu Position ("MPS") 0-4,0 0-4,0

Standby Time ("SBT") N/A 0-3,3

Display Messages ("DMG") N/A N/A

Display Startup Screen ("DSU") N/A N/A

Auto Image ("AIM") 0-1,1 N/A

Resize ("ARZ") 0-1,1 0-1,1

Freeze ("FRZ") 0-1,0 0-1,0

Language ("LAN") 0-3,0 0-3,0

Reset ("RST") 0-1,0 0-1,0

Standby Mode ("STB") 0-1,0 0-1,0

Source ("SRC") 0-1,0 0 = computer 1 = video

0-1,0 0 = computer 1 = video

Bulb Clock (read only) ("LMP") 0-9999,0 0-9999,0 *Software dynamically changes range based on the signal received.



The commands and values in the table below apply to the LP425 with version 1.93 software. The version number of the software is the first number listed in the upper right corner of the on-screen menu. Command values for LP425s with earlier software versions may vary. If an LP425 does not have version 1.93 software or higher, go to the Software/Downloads (http://www.infocus.com/service/software) page to download and upgrade the projector software.

Note—CableWizard3 (SP-CW3), which ships with the LP425, does not support RS-232. You must use CableWizard2 (SP-CW2).

For absolute command value ranges of 0 - 1, 0 = "Off" and 1-9999 = "On" unless otherwise noted.




Video source


Power (write only) ("PWR") N/A N/A

Brightness ("BRT") 0-63,32 0-255,128 or 112

Tint ("TNT") 0-63,32 0-63,32

Contrast ("CON") 0-63,32 0-127,71 or 64

Saturation ("CLR") N/A 0-63,41

Video Format ("VSU") N/A 0-6,0

Volume ("VOL") 0-80,40 0-80,40

Balance ("BAL") 0-31,16 0-31,16

Treble ("TRB") 0-14,7 0-14,7

Bass ("BAS") 0-14,7 0-14,7

Fade ("FAD") 0-31,16 0-31,16

Ambiance ("AMB") 0-37,19 0-37,19

Mute ("MTE") 0-1,0 0-1,0

Manual Tracking ("MTS") 0-63,32* N/A

Manual Sync ("MSS") 0-19,10* N/A

Horizontal Position ("HPS") 0-63,32* N/A

Vertical Position ("VPS") 0-63,32* N/A

Auto Image ("AIM") 0-1,1 N/A

Resize ("ARZ") 0-1,1 0-1,1

Freeze ("FRZ") 0-1,0 0-1,0

Language ("LAN") 0-3,0 0-3,0

Ceiling ("CEL") 0-1,0 0-1,0

Rear Project ("REA") 0-1,0 0-1,0

http://store.infocus.com/service/software






Video source


Reset ("RST") 0-1,0 0-1,0

Auto Source ("ASC") 0-1,0 0-1,0

Default Source ("DSC") 0-1,0 0-1,0

Blank Screen ("BSC") 0-1,0 0-1,0

Menu Position ("MPS") 0-4,0 0-4,0

Standby Time ("SBT") 0-3,3 0-3,3

Display Messages ("DMG") N/A N/A

Display Startup Screen ("DSU") N/A N/A

Standby Mode ("STB") 0-1,0 0-1,0

Source ("SRC") 0-1,0 0 = computer 1 = video

0-1,0 0 = computer 1 = video

Bulb Clock (read only) ("LMP") 0-9999,0 0-9999,0 *Software dynamically changes range based on the signal received.



CLI commands for the LP400, LP425z and LP435z

Note—CableWizard3 (SP-CW3), which ships with the LP400/425z/435z, does not support RS-232. You must use

CableWizard2 (SP-CW2).

For absolute command value ranges of 0 - 1, 0 = "Off" and 1-9999 = "On" unless otherwise noted.


(Min-Max, initial value)

AutoImage (“AIM”) 0 - 1, 1

AutoSource (“ASC”) 0 - 1, 0

Balance (“BAL”) 0 - 31, 16

Bass (“BAS”) 0 - 14, 7

Blank Screen (“BSC”) 0 - 1, 0 0 = blue 1 = black

Brightness — Computer (“BRT”) 0 - 63, 32

Brightness — Video (“BRT”) 0 - 255, 112

Bulb Clock (read only) (Total number of hours bulb has been lit)

(“LMP”) 0 - 9999, 0

CW Connect (read only) (Is CW connected?)

(“CWC”) 0 - 0x7FFF, 3

CW Mouse (read only) (Is CW mouse connected?)

(“CWM”) 0 - 1, 0

Ceiling Mount (“CEL”) 0 - 1, 0

Contrast -- Computer (“CON”) 0 - 63, 32

Contrast -- Video (“CON”) 0 - 127, 64

Default Source (“DSC”) 0 - 1, 0 0 = Computer 1 = Video

Display Messages (on-screen text) (“DMG”) 0 - 1, 1

Display Startup Screen (“DSU”) 0 - 1, 1

Fade (“FAD”) 0 - 31, 16

Horizontal Position (“HPS”) 0 - 63, 32 *

Horizontal Refresh - Computer Source

(“HRF”) 0 - 65535, 0





Language (“LAN”) 0 - 4, 0

LastBulb1 (read only) (Number of seconds last bulb was used until replacement.)

(“LB1”) 0 - 0xFFFFFFFF, 0

LastBulb2 (read only) (Number of seconds last 2 bulbs were used until replacement.)


LastBulb3 (read only) (Number of seconds last 3 bulbs were used until replacement.)


Letterbox (“LTB”) 0 - 1, 0

Line Count - Computer (“LCT”) 0 - 65535, 0

Manual Sync (“MSS”) 0 - 19, 10 *

Manual Tracking (“MTS”) 0 - 63, 32 *

Mute (“MTE”) 0 - 1, 0

On Line (read only) (Number of minutes unit has been on this session.)

(“ONL”) 0 - 0xFFFFFFFF, 0

On Line0 (read only) (Number of times unit has been turned on)

(“O00”) 0 - 0xFFFFFFFF, 0

On Line30 (read only) (Number of times unit has been turned on for at least 30 minutes)






On Line Clock (read only) (Total number of hours projector has been used.)

(“OLC”) 0 - 0xFFFFFFFF, 0

Pixel Count - Computer (“PCT”) 0 - 65535, 0

Plug And Play (“PAP”) 0 - 1, 1

Rear Projection (“REA”) 0 - 1, 0

Reset (“RST”) 0 - 1, 0

Resize (“ARZ”) 0 - 1, 1





Source (“SRC”) 0 - 1, 0 0 = Computer 1 = Video

Standby Mode (“STB”) 0 - 1, 1

Standby Time (“SBT”) 0 - 5, 3

Tint — Computer (“TNT”) 0 - 63, 32

Tint — Video (“TNT”) 0 - 63, 32

Treble (“TRB”) 0 - 14, 7

Vertical Position (“VPS”) 0 - 63, 32 *

Vertical Refresh — Computer (“VRF”) 0 - 65535, 0

Video Decoder (read only) (“VDC”) 0 - 2, 0

Video Format — Video (“VSU”) 0 - 6, 0

Video Source — Computer (read only)

(“DET”) 0x0000 - 0x007F, 0x0000

Video Source — Video (read only) (“DET”) 0x0000 - 0x007F, 0x0000

Volume (“VOL”) 0 - 80, 40

* Software dynamically changes range based on the input signal.


Servicing and Maintaining the 400 Series

N THIS SECTION YOU’LL FIND OUT HOW TO TROUBLESHOOT PROBLEMS IN THE 400 SERIES, and then performrepairs by removing and replacing ‘field replaceable units’ (FRUs). We also show you how to maintain the400 Series by upgrading the software, cleaning the projector, and performing the necessary functional tests

before returning the projector to the customer.

Here’s how we organized this section:

♦ Safety Guidelines includes information you should read before you diagnose problems and repair anInFocus projector. These guidelines help protect you from injury and the projector from damage.

♦ Troubleshooting the 400 Series contains common problems and suggested solutions for the 400 Series.Use this section to solve modular problems.

♦ Cleaning the 400 Series includes guidelines to use when cleaning the projection lens.

♦ Removing and Replacing Field Replaceable Units shows you how to remove and replace each FRU in the400 Series. Each procedure includes illustrations that show how the FRU is removed and, where applicable,how to install it.

♦ Upgrading the Software in the 400 Series contains instructions on how to download the software and flashupgrade the projector.

♦ Performing Functional Tests on the 400 Series lists the resources and tests you need to perform on theprojector before you return it to the customer.

♦ 400 Series Parts Lists includes FRUs, standard accessories, optional accessories and a list of fasteners.

I


Safety GuidelinesRead these safety guidelines before working on the product.

Caution—It’s important that you follow the instructions below before performing service work on theprojector. Failure to comply with these instructions could result in electrical shock, equipment damage, fire

or personal injury.

Basic rules

♦ Only qualified service technicians can remove or replace InFocus projector parts.

♦ Unplug the power cord before servicing the product to avoid possible damage to internal parts.

♦ When working on the projector, use appropriate anti-static precautions such as anti-static mats, wrist strapsand grounded work surfaces. Failure to do this can destroy static-sensitive components and make theproduct inoperable.

Power

Power source

Operate the projector from a three-wire grounding type power source. The power source must not exceed 250volts RMS between the supply conductors or between either supply conductor and ground.

Line and low voltage power cords

Use only the line voltage power cord that comes with the projector. Other power cords may be similar inappearance, but they haven’t been safety tested for use with product.

Do not use the power cord if it is damaged or frayed.

Line voltage

The AC line voltage to the projector must not exceed 250 volts RMS, nor be less than 90 volts RMS. Ensure thatthe AC line voltage is stable and not subject to frequent interruption.

Grounding

The projector is grounded through the grounding conductor in the power cord. To avoid electric shock, alwaysplug the cord into a properly wired receptacle.


Special handling

Ventilation and overheating

Cooling fans inside the projector provide air movement through the case and prevent excessive internal heatbuild up. Ensure a clear path for air movement at the front and rear of the unit. Don’t restrict airflow by blockingthe cooling fans.

Avoid placing the projector on top of a computer or other heat-producing equipment.

Liquid spills

Do not set drinks or other liquids on top of the projector. If liquids spill inside, they can cause irreparabledamage.

Rough handling

Avoid subjecting the product to excessive shock or vibration, especially when it’s operating. Harsh treatment orsevere jarring of the unit can cause failure of internal components.

Optical engine and projection lens

The optical engine and the projection lens require special handling and precautions. When you work on theoptical engine, be sure that the work environment is clean and free of excessive dirt or dust. Handle the opticalengine with care. Avoid subjecting it to shock.

The lamp module becomes extremely hot during operation. Be sure to allow time for the lamp to cool beforeworking on the projector. Although the lamp is considered to be a “low pressure” lamp when not operating,pressures increase when the projector operates at higher elevations. Take care when handling the lamp modulewhen it’s warm. Eye and hand protection should be worn to protect against accidental rupture.

Warning—The projection lamp is extremely bright. Do not look directly into the light source or light path.The light intensity may damage your eyes. Never touch the quartz lamp envelope with your skin. Doing so

could leave oil on the lamp and cause it to rupture when it becomes hot.

The projection lamp produces ultraviolet (UV) radiation. UV light affects the eyes and skin as sunlight does.Avoid direct contact with the light produced by the projector. Protect your eyes by wearing safety glassesdesigned to provide UV protection. Protect your skin against prolonged exposure by wearing tightly wovenclothing and gloves.


Troubleshooting the 400 SeriesThis section includes information that will help you diagnose problems and repair the 400 Series. Included aresections on diagnostic strategies, common user questions, extensive problems & solutions tables, and pin outvoltages for the controller/power supply connector.

Diagnostic strategies

Look for simple solutions first. For instance, if the unit is DOA, check the interlock switch and the lampconnection first. Make sure the power cable is good. Check everything outside the box before removing the topcase.

Once you remove the top case, you have easy access to the controller ECA where you can check for hightemperatures on the chips or for disconnected fan and audio cables. Note any odd—especially burning—smells.Before removing the controller ECA, check the power supply voltages at the controller/power supply connector.

Only after you’ve checked for obvious and simple solutions should you begin substituting new field replaceableunits (FRUs).

Module substitution

If possible, InFocus suggests that you use module substitution (A-B swapping) when diagnosing a problem in aprojector. To verify the status of a FRU (or ‘check’ in the Solution column below), remove it from the projector,then install it in a projector that you know works properly. If the projector no longer works, you’ve identified abad part, and can replace it in the malfunctioning projector. If the projector starts up and runs normally, you’veconfirmed that the FRU is good and have eliminated it from the list of suspect parts. Do this one FRU at a timeuntil you identify the bad part, making sure to reinstall each good FRU back in the defective projector.


Dealing with intermittent problems

Intermittent symptoms are most often caused by loose connections or an ECA that was either improperlyinstalled or that has been stressed so that portions of the circuitry have an inconsistent connection. Thus, undersome conditions, the projector may work fine, while in others it won’t work at all.

When you’re faced with a projector that doesn’t exhibit the symptom consistently, here are the steps we suggestyou follow.

♦ First make sure you find out all you can from the user. Was the projector dropped? Operated in a dirtyenvironment? How long has the problem been occurring? Does the symptom occur more frequently nowthan when it began appearing? At what point in the start-up sequence does the projector beginmalfunctioning?

Often, just asking for more information will provide the solution to the problem. You can eliminatecomponents and increase the chance of guessing correctly. Talking to the user is especially important if youcan’t replicate the problem in the shop.

♦ Make some preliminary checks before swapping pieces. Shake and rattle the projector. Are there any partsfloating around the inside? Is the lamp door firmly secured to the bottom case so that it engages the powersupply interlock switch? Once you open the projector, check to make sure all fasteners are present,especially those that secure the power supply, controller ECA and optical engine in place.

♦ When a projector exhibits intermittent symptoms we suggest that you use a combination of the A-Bswapping technique along with checking voltages at test points on the controller ECA. You can use thesolutions in Problems and Solutions section to narrow down the likely causes of the problem, then use theavailable test specifications to confirm whether a board is operating properly.

♦ Once you diagnose and repair the projector, allow for some extra time to burn in the projector in to makesure that you’ve solved the problem. The burn-in procedure should include cycles of powering up andpowering down.


400 Series user questions and answers

The questions and answers below represent some typical questions to technical support from users.

Q—Why can't I access the controls to adjust Manual Sync, Manual Tracking, Horizontal Position, orVertical Position?

A—First, check to make sure that Auto Image is turned off. When Auto Image is on, the projector automaticallyadjusts the sync, tracking and position.

However, there are several conditions under which you won’t be able to access individual controls evenwhen Auto Image is off.

When Auto Image is disabled, the 400 Series saves sync, tracking and position parameters that were storedin the EEPROM at the moment Auto Image was turned off. If a very weak signal or no signal is availablewhen the Auto Image is turned off, no parameters are stored. When this happens, the projector temporarilylaunches Auto Image when it’s powered up the next time. If there is no RGB input, the sync, tracking andposition controls are dimmed even though Auto Image is off. Once an RGB source is attached to theprojector, Auto Image will again run briefly, then the individual image controls will be available.

Note that many of these controls require several frames of video to lock on to a signal. When switching frommanual to automatic, it may take as long as 10 seconds before the parameters fall under automatic control.During this time, the screen is blank except for the Perfecting the image…please wait message, which isdisplayed in the lower right corner of the screen.

Q—The projected image appears cropped on the lower right corner or it is too small, but centered on thescreen.

A—The Auto Resize control (located on the Controls menu) is off. The Auto Resize feature forces an image tofill the screen regardless of the source’s resolution setting. The factory setting for the Auto Resize control isOn.

When Automatic Resize is on, the system reads the input source and calculates the difference between thenative resolution of the projector and the resolution of the incoming source. If the native resolution of theprojector is larger than the source resolution, the system will enlarge the image through the Spartan chip.When an image is too small to fill the screen, Spartan doubles some of the horizontal lines so the totalimage fills the screen. If the native resolution of the projector is smaller than the source resolution, thesystem will shrink the image through the Peng chip. When an image is reduced, the Peng chip drops outenough horizontal lines so the complete image fills the screen.

There are times that it isn’t desirable to enlarge or reduce an image to fit the screen. Sometimes thehorizontal lines that are dropped out makes a choppy picture. Likewise, sometimes the added horizontallines make a muddy looking picture. At these times, it’s best to live with the cropped or small image.Consider finding another computer with 1024 x 760 resolution for the LP435z or one with 800 x 600 for theother 400 Series models.

When Automatic Resize is off and the native resolution of the projector is different from the resolution of theincoming source, the projected image will be either cropped (lower right corner) or appear too small (butcentered) on the screen.


Q— I started up my computer (or VCR), but there's no picture on the screen. When I turned the projectoron, the start-up screen appeared.

A—The Auto Source Select feature is not on, and you need to select the source manually. On the keypad pressthe Video button or the Computer button.

If you want to turn Auto Source Selection on, press the Menu button on the keypad, then use the mousecontrol to open the Controls menu. Then use the mouse control to select Auto Source. Click a mouse buttonto turn it on.

The next time you turn on the projector, it automatically looks for a source, then locks on the first one itfinds.

You can also specify which source the projector automatically looks for when it starts up. This is especiallyuseful when you have multiple sources connected at the same time. Press the Menu button on the keypad.On the Controls menu, select Default Source. Then use a mouse button to select Computer 1, Computer 2or Video. The next time you turn on the projector, it will automatically try to display an image from the sourceyou selected.

Q—When I start the VCR, the projector shows only a muddy image or a blank screen. I tried pressing theVideo button on the keypad but it didn’t help.

A— The Video Standard autodetect feature has been turned off, and the projector is trying to decode the videowith the incorrect video standard. To change this, press the Menu button on the keypad. Then use themouse control to open the Controls menu. Select Video Standard, then use a mouse button to scroll throughthe selections until Auto appears. The next time you start the VCR (or DVD), the 400 Series will check thesignal, then use the proper parameters to decode the video.

If you wish, you can select a particular video standard that the 400 Series uses every time a video source isdetected. Select Video Standard on the Controls menu, then select the standard you want. For moreinformation, see page 35 or click Video standards on the left.

Q— I can’t get the video from the VCR to appear on the screen. The VCR is connected to the Compositeplug on the I/O panel. I also have a DVD player plugged into the S-video input.

A— When active video sources are plugged into both the Composite and S-video inputs, the S-video port takesprecedence in the 400 Series. To show the video from the VCR, you need to disconnect the DVD player thatis connected to the S-video connector.

Q— Why does it take so long for the projector to display a computer image?

A—It usually takes longer for the 400 Series to display computer images than it does video images. Typically,you can expect a delay of about 10 seconds the first time you hook a computer up to the projector. The nexttime you start the projector with the same computer, it may take as little as two seconds because the 400Series remembers prior settings.

The quality of the signal also determines how long it takes the projector to lock on the image. If yourcomputer takes a long time to lock onto a computer image, make sure the cables are securely plugged intotheir connectors. Then try using shorter cables if possible. You can also try changing to higher qualitycables.


Q— When I start my computer, the screen begins flashing between the computer image and a blankscreen with ‘Perfecting the image’ at the bottom.

A—The Plug and Play feature is not set correctly for your computer. Depending on which computer isconnected to the projector, you probably need to turn it off.

When Plug and Play is set to On, most new computers automatically recognize the 400 Series, then set themonitor resolution and refresh rate accordingly. It makes it easy to get up and running with most computersin use today.

You need to set the Plug and Play setting to Off for the 400 Series to display to display the image generatedby some older computers.

Plug and Play is set to the On position at the factory. This setting does not affect video images.

Q—How can I change the start-up screen?

A—You can change the standard InFocus start-up screen to a blank blue screen. To do this, press the Menubutton, then use the mouse control to go to the Controls menu. Use the mouse control to select DisplayStartup Screen. Then click the mouse button to turn off the InFocus start-up screen.

The next time you start the projector, the start-up screen appears as a blank, blue screen.

You can also make the blank screen appear black. To do this, click the Menu button, then use the mousecontrol to open the Display menu. Use the mouse control to select Blank Screen. Then click the mousebutton to change the blank screen to black. The screen immediately turns black. To turn it blue, click themouse button again.

Q—How do I know what the horizontal or vertical refresh rate is for my source computer?

A—You use the Status menu to see the various settings on the 400 Series. Press the menu button, then use themouse control to open the Status menu. The Status screen opens, showing you the information listedbelow. The Status menu updates each time you alter the settings on the 400 Series. Among other settings,you’ll also find the following information about the currently selected computer:

♦ Computer resolution

♦ Horizontal refresh rate

♦ Vertical refresh rate


Problems and Solutions

This section is designed to let you quickly identify common problems with the 400 Series, then try suggestedsolutions. Solutions are presented beginning with the simplest and progressing to the more complex.

Here’s how this section is organized:

♦ Power and start-up problems................................................. 55*

♦ General image quality problems—RGB, video and logo........ 57

♦ Image quality problems—RGB sources only......................... 59

♦ Image quality problems—video sources only ........................ 60

♦ Audio problems .................................................................... 60

♦ Remote control problems ...................................................... 61

♦ Keypad problems.................................................................. 61

♦ Fan Problems........................................................................ 61

* If you’re using this guide online, click the name of the section you want on the left.


Power and start-up problems

Power and start-up problems include symptoms exhibited by the 400 Series from the time you power up the projector to when the logo screen appears.

Problem Solution

Any power or startup problem 1 Verify that there is clean power to the projector.

2 Verify that the projector software is the most recent version.

3 Verify that the source signal and connecting cables are good.

There are no s igns of power — the keypad and the power LED are not lit.

1 Verify that the lamp connectors are fully engaged.

2 Check the thermal switch.

3 Check the power supply.

4 Check the controller ECA.

5 Check the optical engine.

The projector powers up, but the logo screen doesn’t appear. The keypad is lit and the fans are running.

1 Check the lamp module.

2 Verify that the color wheel ribbon is connected to the formatter ECA, and that the color wheel spins when the projector is powered up.

3 Verify that the photodiode cable is routed so that it is not pinched by the top and bottom cases.

4 Check the photodiode.



7 Check the formatter ECA.


The projector starts normally, but loses power when the lamp strikes.

1 Check the thermal switch.




The projector starts and runs but the lamp shuts down after a short period of time.





The projector starts and runs, but displays only the logo screen and no other images.



Power and start-up problems, continued

Problem Solution

The projector starts and runs but loses power after a short period of time.

1 Remove the top case and visually verify that the micro-fan and power supply fan are operating.

2 Verify that the thermal switch is operating correctly.

To do this, first unplug the projector . Check the continuity of the thermal switch. If it is open, the switch is defective and must be replaced.

3 Verify that the optical engine gaskets are properly installed.


5 Check the controller ECA

The projector starts and runs, but the menu functions don’t display.

1 Check the keypad ECA.



General image quality problems—RGB, video and logo

Problem Solution

Any image quality problem 1 Before trying to resolve image quality problems, reset all software settings to their defaults by clicking Reset All on the Display menu.

2 Before trying to resolve image quality problems, flash the projector with the latest software.

3 Verify that the source signal and connecting cables are good.

Picture is dim. All projected pictures—the splash screen, video and data—are not as bright as they should be.





5 Check your glasses.

Image flickers. 1 Check lamp module.

2 Check controller ECA.



All projected images are distorted or noisy. 1 Check the optical engine.



The tint (on VGA and RGB) or color (on video) can’t be adjusted properly on all images.





Both RGB and video images are frozen or torn. 1 Check the controller ECA.

Image is discolored. 1 Check the lamp module.



All images display dead pixels or vertical lines. 1 Verify that the I/O EMI shield contacts the power supply case.





General image quality problems—RGB, video and logo, continued

Problem Solution

Scrambled image with lamp lit. 1 Check the formatter ECA.



Image displays excessive numbers of dark specks.

1 Verify that the optical engine gaskets are in place.

2 Check the micro-fan.


No RGB or video image displays. Lamp is lit and splash screen appears.


Colors are out of convergence. 1 Check the lamp module.




Image quality problems—RGB sources only

Problem Solution

Projector won’t display or synchronize to RGB source. Video images and the splash screen appear normal.

1 Verify computer compatibility with the projector (resolution and refresh rate).

Note that very few workstations are compatible with the 400 Series because the maximum resolution the projectors sync to is 1024 x 768.

2 Check the CableWizard.

3 Deactivate Auto-Image and manually adjust sync and tracking on the Image menu.


Projector displays frozen or torn RGB images. 1 Confirm that the refresh rate and resolution of the source computer are compatible with the projector.

2 Deactivate Auto-image in the Image menu.



Projected RGB image is consistently missing a color or can’t be adjusted to display proper tint.



Projected image constantly changes between the computer image and the message, “Perfecting the image.”

1 Understand that perfection can take years. Be patient.

2 Deactivate Plug and Play on the Control menu.



Image quality problems—video sources only

The following problems are particular to video sources—VCRs, videodisc players and DVDs. Remember to set the projector’s display and image controls to the factory defaults before beginning.

Problem Solution

Image from video source either doesn’t appear or displays noise, lines or other problems. RGB images and the splash screen appear normal.

1 Manually select mode in Video Standard menu: NTSC, PAL, SECAM.

Projector displays only S-video when video sources are plugged into both S-video and Composite connectors.

1 To project the images from a composite source, unplug the S-video connector. When a source is connected to both connectors, the 400 Series recognizes only the S-video source.

Projector will not display images from an S-video source c onnected at the S-video port. Projector displays composite video.

1 Verify that the source offers sufficient video gain.


Projector will not display images from any video source.


Projected image consistently displays noisy and/or distorted images.

1 Verify that the I/O EMI shield is properly installed.


Audio problems

All of the audio input/output jacks and the audio processing on the 400 Series are contained in the controller ECA. The single internal speaker plugs directly into the controller ECA.

Problem Solution

No audio or distorted audio from built-in speaker.

1 Verify that there is a signal from the source.

2 Verify that all menu settings are at factory defaults by clicking Reset All on the Display menu.

3 Verify that the speaker cable is plugged into its connector on the controller ECA.

4 Check the speaker.



Remote control problems

Problem Solution

The projector fails to respond to the IR remote control. *

1 Replace the batteries in the remote control.

2 Replace the remote control.

3 Remove the top case, turn the projector on, then verify that the remote doesn’t work when pointed directly at the IR receiver that is mounted on top of the keypad ECA.

If the remote does operate properly, check the top case.



∗ If you’re experiencing problems with the GyroPoint Pro II Freespace Mouse (offered by InFocus as an optional accessory), call the IXMICRO Customer Support line in the United States at 888-467-8282 or 1-408-369-8282.

Keypad problems

Problem Solution

One or more of the keys on the keypad do not respond.

1 Verify that the keypad ECA/controller ECA connector is engaged.


3 Check the top case (includes the keypad).


Fan Problems

Problem Solution

The power supply fan doesn’t turn. 1 Check the power supply.


3 Remove the loose screw from the fan blades.

The micro-fan mounted on the lamphouse doesn’t turn.

1 Verify that the exhaust fan power cable is

attached to its connector on the controller ECA.

2 Check the micro-fan



Cleaning the 400 Series projectorsBefore returning the projector to the customer, you need to ensure that the projection lens, condenser lens andoutside case are clean.

Caution—InFocus suggests that you do not blow out the inside case except when the inside components areextremely dirty. If you do clean the inside, make sure you use de-ionized air. Take extreme caution when

directing air at the optical engine and circuit boards.

Cleaning the outside case

Clean the outside with a damp cloth and a mild soap solution. Avoid use of solvents or abrasive cleaningproducts.

Cleaning the projection lens

To clean the projection lens, we suggest you use isopropyl alcohol or a photographic lens cleaning solutionalong with lens cleaning tissue. Other cleaning materials can leave lint or other residue on the glass.

1 Blow the loose dust off the lens with canned compressed air.

2 Apply the cleaning solution to the lens cleaning tissue.

Avoid applying the solution directly to the lens surface.

3 Wipe the lens in a spiral motion, beginning in the center of the lens and ending on the outside.

4 If necessary, repeat the above steps until the lens is clean and free of streaks.

Cleaning the condenser lens

The condenser lens is mounted on the narrow end of the funnel-shaped condenser lens housing, which attachesto the optical engine. The front of the metal halide lamp aligns with the wide end of the condenser housing. Theeasiest way to clean the condenser lens is when the optical engine is out of the bottom case and the lamphousehas been separated from the optical engine body.

You can check the condition of the condenser lens surface and do a limited amount of cleaning withoutremoving the optical engine. When you remove the lamp door and lamp module, you can see the condenser lensthrough the lamphouse. You can clean the condenser lens by reaching inside through the lamphouse.

To clean the condenser lens, we suggest you use isopropyl alcohol or a photographic lens cleaning solutionalong with lens cleaning tissue. Other cleaning materials can leave lint or other residue on the glass.

1 Gently blow the loose dust off the condenser lens with canned compressed air.

2 Apply the cleaning solution to the lens cleaning tissue.

Avoid applying the solution directly to the lens surface.

3 Wipe the lens in a spiral motion, beginning in the center of the lens and ending on the outside.

4 If necessary, repeat the above steps until the lens is clean and free of streaks.


Removing and Replacing Field Replaceable Units (FRUs)

Introduction

This section shows you how to remove and replace each field replaceable unit (FRU) in the 400 Series. Eachprocedure includes illustrations that show how the FRU is removed and, where applicable, how to install it.

We’ve organized the FRU procedures beginning with the most accessible FRUs. Following those are the FRUsfor which you need to remove other FRUs to access. At the beginning of each procedure, we list any FRUs youneed to remove in order first. Then, you’ll find the procedure to follow to remove the FRU.

Normally, when you replace the FRU, you follow the removal steps in reverse. However, if there are any specialtechniques or sequences to follow, you’ll find them listed after the procedure in a section we call AssemblyNotes.

Special Note—When working on the projector, use appropriate anti-static precautions such as anti-staticmats, wrist and foot straps, and grounded work surfaces. Failure to do this can destroy static-sensitive

components and make the product inoperable.


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The 400 Series projectors include two types of projection lens systems. The LP420, LP425 and LP400 are non-zoom models, and include only a focus ring. The LP425z and LP435z include zoom rings and focus rings,which allow independent image focus and image size adjustments. The procedures to remove and replace thedifferent rings are listed separately.

LP425z and LP435z

The two zoom lens-equipped models include a zoom ring (340-0576-xx), a focus ring (328-0094-00) and a lenscap (340-0573-01). These parts are not interchangeable with those on the LP400, LP420 or LP425.

To remove the focus ring

1 Pull the lens cap off the front of the focus ring.

2 Rotate the zoom ring clockwise until it stops.

Doing this extends the focus ring and makes it easier to remove.

3 With your fingers, pull the rubber focus ring off the front of the lens barrel.

Assembly Notes

♦ To install the focus ring, do the following:

a Rotate the zoom ring clockwise until it stops.

Doing this extends the focus ring and makes it easier to remove.

b Slide the focus ring over the end of the lens barrel.

c Work the outside edge of the focus ring with your fingers so that it mates with the end of the lens barrelevenly.

The focus ring should fit evenlyaround the end of the lens barrel.


d Once the focus ring is seated, turn both the focus and zoom rings back and forth several times to makesure they work smoothly. When the zoom ring is turned counterclockwise until it stops, you should beable to turn the focus ring through its entire range without binding.

To remove the zoom ring

The zoom ring fastens to the lens barrel with three tabs that fit into matching slots on the barrel. You use a smallbladed screwdriver to disengage the tabs from the slots from the front of the lens.

1 To disengage a tab, insert the screwdriver between the focus ring and the lens barrel.

2 Lift the tab away from the lens barrel while pulling the focus ring outward.

Three tabs on the zoom ring…

…fit into three matching slots on thelens barrel.


Note—The zoom ring fits over the lens barrel tightly. Once you lift one of the tabs, you may need togently pry the zoom ring away from the top or bottom case with another bladed screwdriver. When you

do this, take extreme care not to scratch the outside of the top case or zoom ring.

3 Holding the zoom ring away from the projector body, then detach the other tabs.

4 Pull the zoom ring outward to remove it from the lens barrel.

Assembly Notes

♦ To install the zoom ring, do the following:

a Position the zoom ring so that the flared end points away from the projection lens.

b Align the three tabs on the ring with the three slots on the lens barrel, then slide the zoom ring over thelens barrel.

Note that the zoom ring fits tightly over the lens barrel.

c Once the zoom ring snaps into place on the lens barrel, turn the ring back and forth to make sure tabsfully engage the slots.

When the zoom ring is properly installed, it should fit flush against the top and bottom cases. It shouldturn to the right and left, and the outer lens should fully extend and retract.


LP400, LP425 and LP420

The focus ring (505-0250-xx) attaches to the projection lens with three tabs that fit into matching slots on thelens barrel. The lens cap (505-0235-xx) attaches to the focus ring, and must be removed before detaching thefocus ring from the lens barrel.

Once you’ve removed the lens cap, use a small, bladed screwdriver to disengage the tabs on the focus ring fromtheir slots on the lens barrel. You access the tabs from the front of the lens.

1 To remove the lens cap, squeeze the spring-loaded tabs on each side cap, and then pull it off.

2 Rotate the focus ring counter-clockwise until it stops.

You can see a tab at the bottom of the focus ring between the focus ring rim and the edge of the lens barrel.

3 To disengage the tab, insert the screwdriver between the focus ring and the lens barrel, then press the tabdown while pulling the focus ring outward.

Once the tab disengages, you’ll need to detach the other two tabs before removing the focus ring.

Caution—Take care not to scratch the projection lens while prying the tabs off the lens barrel.

4 After loosening the three tabs, pull the focus ring outward to remove it from the lens barrel.

Assembly Notes

♦ When installing the focus ring, align the tabs with the slots on the lens barrel, then press it on until the focusring snaps into place on the lens barrel.

♦ Make sure you replace the lens cap.


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There are two rubber feet (328-0029-xx) attached to the bottom rear of the bottom case. The LP420/425 rests onthese two feet in the rear and on the elevator in front.

To replace a rubber foot, peel the protective paper off the bottom of the foot, then press the foot into the circularrecess in the bottom case.


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The front bezel (505-0293-xx) covers the front of the projector, and helps secure the top and bottom cases to theprojector. The bezel fastens to the projector with three screws, all of which attach to the bottom lip of the bezel.

To access the front bezel, you must first remove the following FRU:

1 Focus and zoom rings (see page 64)

Once you remove the above items, do the following:

1 Place the projector on its side.

2 Remove the M3x6 black PHP screw in the center of the bottom lip of the front bezel.

3 Remove the two M4x80 PHP screws, one at each end of the bottom lip.

4 Pull the front bezel off the front of the projector.

Note—Once you remove the front and rear bezels, the top and bottom cases are loose and come aparteasily.

Assembly Note

♦ If you’re installing a new front bezel, be sure to replace the Logo label (020-0779-xx) in the triangular areanext to the projection lens opening. The same logo label fits all projectors in the 400 Series.


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The rear bezel (505-0255-xx) covers the back of the projector. It helps secure the top and bottom cases to theprojector. The bezel attaches to the projector with two screws.

1 Remove the two M3 x 6 black PHP screws from the rear bezel.

2 Pull the bezel off the projector.

Note—Once you remove the front and rear bezels, the top and bottom cases are loose and come aparteasily.

Assembly Note

♦ If you’re installing a new rear bezel, be sure to attach a new model label to the bottom right side of thebezel. Each model in the 400 Series uses a different label. See FRU Parts Lists for the correct part numbers.


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The lamp door (340-0390-xx) provides access to the lamp module on the front left side of 400 Series projectors.

Caution—The projector will overheat if it’s run without the lamp door.

1 Place the projector on its side.

2 Release the two tabs at the bottom of the door with a bladed screwdriver.

3 Remove the lamp door by swinging it open, then pulling the tabs at the top of the door out of their slots.

Assembly Note

♦ When replacing the lamp door, insert the two tabs at the top of the door first. Then swing the door shut andsnap the two tabs in the bottom case into the two slots in the door.


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The lamp module fits inside the lamphouse in the 400 Series projectors. The light-generating portion of the lampconsists of the metal halide arc and a reflector, both of which are enclosed in a glass envelope. A base made ofceramic, metal and plastic holds the envelope in place inside the projector. The entire unit fastens to thelamphouse with two captive screws. The lamp module attaches to a high voltage power cable via a slidingconnector.

To access the lamp module, you need to remove the following FRU:

1 Lamp door (see page 71)

After removing the lamp door, do the following:

1 To separate the lamp connector, move the slider on the lamp module housing toward the front until theconnector disengages.

2 Loosen the two captive screws that secure the lamp module to the lamphouse.

You don’t need to remove the screws to remove the lamp module.

Move the slider toward front of theprojector until the lamp connectordisengages.

Captive screws at opposite cornersof the lamp module fasten it to thelamp house.


3 Pull the lamp module out of the projector.

Caution—The lamp module becomes very hot when the projector is in use. Allow time for thelamp module to cool before removing it. Never touch the quartz lamp envelope or the reflectivesurface on the lamp reflector with your skin. Doing so could cause the lamp to fail when it

becomes hot.

Assembly Notes

♦ When installing the lamp module in the projector, do the following:

a Hold the spring-loaded lamp connector in a retracted position, then slide the module into its housing.

b Once the module is seated, tighten the captive screws.

c Move the slider on the on the lamp connector toward the rear of the projector until the connector halvesare fully joined.

♦ If you installed a new lamp module, you need to reset the lamp timer. Once you’ve reassembled theprojector, do the following to reset the timer.

a Power up the projector.

b With your thumb, press and hold the left mouse button on the keypad for five seconds.

c While holding the left mouse button down, press the menu button with your index finger.

The lamp timer resets.

d To confirm that the lamp timer has reset, do the following:

For the LP420 and LP425, press the menu button to display the onscreen menus. The Lamp HoursUsed, which appears near the top of the menu, should read 000.

For the LP400, LP420 and LP425, press the menu button, then display the Status menu. The LampHours Used, located on the top of the menu, should read 000.


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The top case (505-0252-xx) covers the top half of the 400 Series. The top case includes the keypad assemblyand rubber gaskets. If either the keypad or the gaskets are damaged, you need to replace the top case.

To remove the top case, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:



3 Front bezel (see page 69)

4 Rear bezel (see page 70)

The top case is held in place by the front and rear bezels, and is hinged on the left side with interlocking‘clamshell’ hinges. To remove the top case, you swing it open and then separate it from the bottom case at theclamshell hinge. There are no screws attaching the two case halves.

1 Grasp the top case on the power switch side, just above the power switch, then lift it up, swinging the caseopen.


2 Once the top is upright, disengage the hinges by pulling the hinge tabs out of their slots in the bottom case.

Assembly Notes

♦ Before installing a used top case, check the rubber gaskets on the inside of the top case. The gaskets ensureproper cooling inside the projector. If the gaskets are torn or deteriorated, order a gasket kit (505-0313-xx)and replace the damaged gasket(s).

♦ When installing the top case, engage the hinge tabs on the top case with the slots in the bottom case. Thenclose the top case down over the bottom case.

♦ Make sure the speaker wire is routed behind the post on the bottom case and through the cable clip so itdoesn’t interfere with the hinge as you close the top case.

Make sure the gaskets inside thetop case are in good shape.

When the hinges in the top andbottom cases engage, the two casehalves lock together on one side.

Cable clip

Post


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The I/R window (340-0387-xx) is a small colored plastic dome that attaches to the top case near the keypad.You access it from the inside of the top case.

To access the I/R window, you need to remove the following FRU:





5 Top case (see page 74)

After removing the top case, do the following:

1 On the inside of the top case, squeeze the two black snap tabs on the I/R window, then press it though itshole in the top case.

2 Remove the I/R window from outside the top case.

Assembly Note

♦ When replacing the I/R window, align the guide on the window with the guide slot in the top case, thenpress it in until it snaps into place.

To replace the I/R window, align the guide tabwith the slot in the top case, then press thewindow into place

To remove the I/R window, squeeze the two blacksnap tabs on the inside of the window, then pressthe window though its hole in the top case.


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The micro-fan (505-0421-xx) is located at the front of the optical engine. It exhausts hot generated by the enginethrough the front bezel.

To access the micro-fan assembly, you need to remove the following FRUs:






Once the above items are removed, do the following:

1 Detach the micro-fan cable from its connector on the front of the controller ECA, then carefully pull thecable out of its slot in the color wheel gasket.

Micro-fan power cable connector

Color wheel gasket


2 Remove the two M3x6 PHP screws that fasten the micro-fan to the top of the lamphouse and bottom case.

The top screw is located next to the condenser lens housing on the bottom case.

3 Lift the micro-fan out of the projector.

Assembly Note

♦ When installing the micro-fan, route the micro-fan cable through the channel between the color wheelhousing and the power supply fan. Make sure the cable fits into its slot in the color wheel gasket.

Top screw

Micro-fan with gaskets

Top screw


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The lamphouse (505-0256-xx) attaches to the optical engine at the metal condenser lens housing. The assemblyalso includes the thermal switch, which attaches to the top of the lamphouse.

Note—When you replace the optical engine, you don’t need to remove the lamphouse. A new optical enginecomes with a lamphouse and thermal switch.

To access the lamphouse, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






6 Lamp module (see page 72)

7 Micro-fan (see page 77)

After removing the above items, do the following:

1 With a needle nose pliers, detach the two spade connectors on the thermal switch cable.

The thermal switch is located on the top of the lamphouse.


2 Remove the M3x6 PHP screw from the top of the lamphouse on the side nearest the optical engine.

3 Lift the lamphouse out of the projector.

Assembly Notes

♦ When installing the lamphouse, engage the tabs on the bottom case with the base of the lamphouse. Thereare also two tabs on the base of the metal condenser lens housing that fit inside slots on the lamphouse base.

♦ After attaching the two spade connectors on the thermal switch cable, make sure the cable routes throughthe slot in the gasket between the lamphouse and color wheel.

Remove this screw to loosenthe lamphouse.

Slots in the bottom of thelamphouse fit into tabs on thebottom case.


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The thermal switch (215-0010-xx) fastens to the top of the lamphouse. It contains a heat-sensitive switch thatopens when the lamphouse temperature exceeds safe levels. When the switch opens, it shuts off voltage to thepower supply, thus turning the projector off.

The thermal switch comes with a new lamphouse and with a new optical engine. When you replace the switchyou need to use two new Tinnerman retaining nuts, which are available in the fastener kit (802-0017-xx).

To replace the thermal switch, you need to remove the following FRUs:

1 Focus ring (see page 64)






1 With a needle nose pliers, detach the two spade connectors on the thermal switch cable.



2 Use a side cutter to grip the retaining caps, then carefully twist them off the plastic posts on the lamphouse.

Caution—Use extreme care when removing the retaining caps from the plastic posts on the lamphouse.If you break a post, you must replace the lamphouse.

Assembly note

♦ To replace the retaining caps on the plastic posts, first position the cap on the post, then use either a needlenosed pliers or a 3/16-inch socket to press them over the posts.

♦ Make sure the power supply cable is routed through the color wheel gasket.


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The speaker (525-0004-xx) is attached directly to the rear of the power supply.

To access the speaker, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






When you finish removing the above items, do the following:

1 Disconnect the speaker cable from the controller ECA.

2 Remove the speaker cable from the cable clip on the power supply.

3 Grasp the edge of the speaker and turn it counter-clockwise to unscrew it from the stud on the power supply.

Cable clip

Post

Speaker connector

Stud


Assembly Notes

♦ Before installing the speaker, make sure the speaker gasket is adhered to the speaker in two places and thatthe speaker cable is glued to the magnet.

♦ Thread the speaker on the stud on the back of the power supply. Tighten the speaker so that the speaker wireis at a 4:00 position.

♦ When you reconnect the speaker cable to its connector on the controller ECA, make sure to route the cablethrough the cable clip on the back of the power supply.

Tighten the speaker so the speaker cableemerges at a 4:00 position.


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The keypad ECA (510-1306-xx) mounts on top of the controller ECA. When the top case is in place, the keypadassembly that is attached to the top case mates with the keypad ECA. When a button is pressed on the keypad,the ECA receives the signal and passes it on to the controller.

There are no fasteners securing the keypad ECA to the controller ECA. Instead, the board is attached on the rearwith a connector on the controller ECA. The front of the board rests on the controller ECA with two feet, whichinsert into slots on the controller ECA.

To access the keypad ECA, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






When you finish removing the above items, do the following:

1 Holding the keypad ECA on both sides, carefully lift the board until the controller/keypad connectorseparates.

Lift the back of the keypad ECA to disengage thecontroller/keypad connector.


2 Slide the keypad ECA toward the front of the projector to disengage the tabs at the bottom of the feet from their slots in the controller ECA.

3 Lift the keypad ECA out of the projector.

Assembly Notes

♦ Before placing the keypad ECA into the projector, move the color wheel ribbon cable toward the formatter ECA so that it clears both feet.

♦ When installing the keypad ECA, do the following:

a First, insert the tabs on the front of the board into their slots in the controller ECA.

b Next, slide the keypad ECA toward the rear of the projector until the keypad/controller connectors match.

c Then carefully press down on the edges of the keypad ECA so the connectors engage.

Warning—Do not press down on the connector pins that extend through the circuit board. The sharp points can stick tiny holes in your fingers that really hurt!

SlotFoot


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The formatter ECA converts raw video signals from the controller ECA into digital bitmaps. The optical engineuses the bitmaps to display images. The formatter fastens to the top of the controller ECA on the power switchside of the projector.

Each projector in the 400 Series uses a different formatter ECA. See the FRU Parts Lists for more information.

The formatter bracket supports the front of the formatter ECA in the 400 Series projectors.

The formatter ECA and formatter bracket in the LP435z differ from the ECAs and brackets in the otherprojectors in the series in shape and in the removal and replacement procedure. Separate procedures areprovided for both below.

Note—The formatter ECA and the formatter bracket on the LP435z differ in size and configuration from theones on the LP400, LP425z, LP420 and LP425. Separate instructions are provided for both below.

To access the formatter ECA, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






After you remove the above items, do the following:


LP435z formatter ECA

1 Disconnect the color wheel ribbon cable from the ZIF connector on top of the formatter ECA.

2 Remove the retaining clip that fastens the formatter/optical engine cable down on the formatter ECA.

To do this, lift the outside end of the clip to disengage the tab that fits over the edge of the formatter ECA.Then slide the clip toward the center of the projector to disengage the other end.

3 Disengage the optical engine ribbon cable connector by holding both sides and gently rocking back andforth while lifting it.

Color wheel ribbon connector

ZIF connector


4 Remove the four M3 x 6 Torx screws that fasten the formatter ECA to the controller ECA.

5 Disengage the connector at the rear of the formatter ECA, grasp the board on both sides and gently rockback and forth while lifting it.

6 Lift the formatter ECA out of the projector.

Assembly Notes

♦ When you reconnect the rear connector on the formatter ECA, use a plastic screwdriver handle to seat theconnector halves together.

♦ Install the four M3 x 6 Torx screws before you attach the optical engine ribbon cable to the formatter.

♦ Note that the retaining clip over the optical engine ribbon cable connector fits only one way. The beveledend of the connector faces outward. There are also two pins on the bottom of the clip that match up with twoholes on top of the cable connector.

♦ When inserting the color wheel cable into the ZIF connector on the formatter ECA, make sure the silver sideof the cable faces downward.


LP435z formatter bracket

The LP435z formatter bracket is comprised of three pieces, the metal bracket (330-0528-xx), an EMI clip (329-0177-xx) and a DMD thermal gasket (in the 400 Series gasket kit: 505-0313-xx). The bracket serves a dualpurpose. It supports the front of the formatter ECA. Additionally, the clip and gasket provide the XGA DMDthermal protection and EMI grounding.

Before removing the formatter bracket, follow the procedure above to remove the formatter ECA. You also needto remove the optical engine because the formatter bracket fits snuggly between the engine and power supply.

When you install the formatter bracket, make sure you also include the EMI clip and thermal gasket.

Attach the EMI clip to the formatter bracket so that itfaces the optical engine.

When reinstalling the optical engine, take care thatthe DMD thermal gasket isn’t misshaped or torn bythe ridges on the DMD.

DMD

After removing the optical engine, you have easy access tothe formatter bracket. The bracket fastens to the controllerECA with two M3 x 6 Torx screws.

DMD thermal gasket

EMI clip

LP435z formatter bracket


LP420, LP425, LP400 and LP425z formatter ECAs and brackets

1 Disconnect the color wheel ribbon cable from the ZIF connector beneath the inside front corner of theformatter ECA.

2 Remove the four M3x6 Torx screws from the top of the formatter ECA.

3 Disengage the formatter/controller connector at the rear of the formatter ECA by holding the board on bothsides and gently rocking it back and forth while lifting.

You may need to flex the I/O shield slightly to clear the formatter.

4 Slide the formatter ECA toward the optical engine so the connector on the optical engine ribbon cable clearsthe formatter board mounting bracket, then tip the board up so you have access to the connector.

5 To detach the optical engine ribbon cable connector on the front of the board, grasp the formatter board withone hand and the connector with the other, then rock the board back and forth until the connector separates.

Once you remove the formatter ECA, you have access to the formatter bracket.

After removing the four Torxscrews from the top of theformatter ECA, lift the rear of theformatter to disengage theformatter/controller connector.

Optical engine ribbon cable

Lift the rear of formatter ECA up soyou can disconnect the opticalengine ribbon cable.


6 Remove the two M3 x 6 Torx screws that fasten the formatter bracket to the controller ECA. Then lift thebracket from between the controller ECA and optical engine.

Assembly Notes

♦ Connect the optical engine ribbon cable to the formatter ECA first. Lightly press the two connectorstogether, then grasp the board and connector with both hands and squeeze the connector from both sidesuntil it snaps into place.

♦ Next, connect the color wheel ribbon cable to the ZIF connector on the formatter ECA. It’s easier to do thisbefore fastening the ECA down in the projector. Be sure the silver contact side faces down toward thecontroller ECA.

♦ Before pivoting the formatter ECA into place, slide it toward the optical engine so it clears the mountingbracket near the optical engine ribbon cable. Then align the formatter/controller connector in the rear andpress the board into place with the end of a plastic screwdriver handle.

♦ If you removed the S-video ground shield from the controller ECA, be sure to replace it before installing theformatter ECA. The corner of the formatter ECA fastens to the ground shield.


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The photodiode (701-0018-xx) is located inside the top of the optical engine housing. It senses the intensity oflight entering the optical engine, and monitors the rotation of the color wheel.

To access the photodiode, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:







1 Detach the photodiode cable connector on the controller ECA.

You can do this without removing the formatter ECA. Use a small bladed screwdriver to carefully lift thecable connector off of the controller ECA.

2 (LP435z only) Remove the retaining clip that fastens the formatter/optical engine cable down on theformatter ECA.

First, lift the outside end of the retaining clip to disengage the tab that fits over the edge of the formatterECA. Then slide the clip toward the center of the projector to disengage the other end.


Once you’ve removed the retaining clip, unplug the optical engine ribbon cable connector by holding bothsides and gently rocking back and forth while lifting it. Disconnecting the ribbon cable allows enough roomto insert a screwdriver into the photodiode housing.

3 To remove the photodiode from its housing, insert a bladed screwdriver into the housing recess on top of thediode. Then lift the small retaining tab and pull the diode out of the housing.

Assembly Note

♦ Route the photodiode cable so that it does not get pinched when the top and bottom cases are fastenedtogether. Stressing the cable can cause the optical engine to stop operating.

Detail of photodiode housing

Lift the retaining tab with asmall bladed screwdriver,

then pull the photodiode outof the housing.

The lip at the base of the photodiode (shownpartially withdrawn from the housing) is held inplace by the retaining tab.


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The I/O EMI shield (330-0497-xx) covers the connectors on the rear of the 400 Series projectors. The shieldfastens to the connectors with screws located on either side of the CableWizard connector.

To access the I/O EMI shield, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






After you remove the above items, do the following:

1 Remove the two M2.6x8 PHP screws that attach the I/O EMI shield on either side of the CableWizardconnector.

2 Grasp the shield on both ends, then gently work it off of the connectors.

On the side nearest the formatter ECA, the shield is held in place over the S-Video and RCA connectorswith small fingers. You may need to work the shield around the cable retainers on the CableWizardconnector to remove it.

CableWizard connector


Assembly Notes

♦ Align the small fingers in the holes that fit over the S-Video and RCA connectors to make sure they fitsnuggly.

♦ Before installing the I/O EMI shield, make sure the audio EMI gasket (included in the gasket kit) is installedon the Audio In port.

♦ Make sure the fingers on the bottom of the shield contact the top of the power supply. Contact assures thatvideo and audio noise are drained off to ground through the power supply.

Audio EMI gasket


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The controller ECA contains circuitry that manages the major functions of the 400 Series, including TV, videoand computer signal processing, audio input, and keypad and IR signal processing. The controller ECA also hasthe I/O circuitry to which the user connects peripheral devices.

The controller ECA mounts on the power supply, just behind the optical engine. The keypad ECA and theformatter ECA both fasten to the top of the controller.

Note—The controller ECA is not interchangeable among different projector models, with the exception ofthe LP425z and the LP400. See FRU Parts Lists for the part number of the projector you’re working on.

The removal and installation of the controller ECA in the LP435z differs from the controller ECA on the

other 400 Series projectors. Separate instructions are provided for both below.

To remove the controller ECA, you must first remove the FRUs listed below. We suggest you remove them inthe following order:






6 Keypad ECA (see page 85)

7 I/O EMI shield (see page 95) *

8 Formatter ECA (see page 87)

9 Micro-fan (see page 77) **

10 Optical engine (see page 104) **

11 Formatter bracket (see page 90) **

* If you’re removing the controller ECA to access other FRUs in the projector, you don’t need to remove the I/O EMI shieldor the S-video EMI shield from the controller ECA.

** LP435z only. You can leave the optical engine and the formatter bracket in place for the LP400, LP420, LP425 and LP425z.



LP435z

1 Disconnected the following cables from their connectors on the controller ECA.

a Photodiode cable

b Speaker cable

c Micro-fan cable

2 Remove the two M3 x 6 Torx screws on the side of the controller ECA nearest the power supply fan.

3 Remove the two M3 x 6 Torx screws that fasten the formatter bracket to the controller. Then remove theformatter bracket.

4 Remove the two standoffs adjacent to the I/O panel.

The controller is now attached only to the power supply through the controller/power supply connectorlocated near the formatter/controller connector.

LP425 shown

Photodiode cableMicro-fan cable

Speaker cable

Power supply fan


5 Carefully pry the rear corner of the board on the power switch side until the connector disengages, then liftthe controller out of the projector.

Assembly notes

♦ Before replacing the controller ECA, lift the color wheel ribbon cable out of the way so it doesn’t getcovered.

♦ Make sure that you engage the controller/power supply connector before installing any fasteners.

♦ Install the M3 x 6 screws on the power supply fan side first. Then install the formatter bracket. Last, installthe two standoffs.


LP420, LP425, LP400 and LP425z

1 Make sure the following cables are disconnected from their connectors on the controller ECA.

a Photodiode cable

b Speaker cable

c Micro-fan cable

2 Remove the two M3 x 6 Torx screws that secure the controller ECA to standoffs on the top of the powersupply.

3 Remove the two M3 x 6 Torx screws that fasten the formatter bracket to the controller ECA. Then lift theformatter bracket from the projector.

Note—The formatter bracket is available as an FRU. See FRU Parts Lists for information.

LP425 shown

Photodiode cableMicro-fan cable

Speaker cable


4 Remove the M3x6 Torx screw that attaches the ground shield for the S-video port that is located near therear center of the controller ECA.

Set the ground shield aside. You’ll need it when you install the controller ECA.

5 Use a nut driver to remove the two M3x16 threaded standoffs from the controller ECA.

One standoff is located on the power switch side at the rear of the controller ECA, and the other standoff islocated at the rear center of the board.

6 Carefully pry the rear corner of the board on the power switch side until the connector disengages, then liftthe controller out of the projector.

Assembly Notes

♦ Before replacing the controller ECA, lift the color wheel ribbon cable out of the way so it doesn’t getcovered.

♦ Make sure that you connect the controller/power supply connector before installing any fasteners.

♦ Install the M3 x 6 screws on the power supply fan side first. Then install the formatter bracket. Last, installthe two standoffs.

♦ Make sure that you replace the S-video ground shield. The S-video ground shield (505-0311-xx) is availableas an FRU kit. The kit includes two pieces, a ground bracket and an EMI gasket. You assemble the twopieces before fastening the shield over the S-video port.

Peel the tape off the back of the EMI gasket, thenadhere the gasket to the bottom of the groundshield.

Ground shield


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The power supply (520-0054-xx) is located below the controller ECA and is attached directly to the bottomcase. The attached cooling fan is located between the power supply and the lamphouse.

To access the power supply, you must first remove the FRUs listed below. We suggest you remove them in thefollowing order:






6 Keypad ECA (see page 85) *


8 Controller ECA (see page 97) *

* If you’re removing the power supply to access another FRU, you can leave the controller ECA, keypad, the speaker and theformatter bracket attached to the power supply case.

After the above items are removed, do the following:

1 Turn the projector on its side, then remove the two black M3x6 PHP screws from the outside of the bottomcase.

One screw is located on the power switch side, the other on the opposite side. Both screws are labeled PS.


2 Turn the projector right side up.

3 Flex the side of the bottom case near the speaker cable slightly to pull the two locking tabs from their slotsin the power supply.

4 Lift the loose edge of the power supply out of the bottom case first, then disengage the AC plug and switchfrom the opposite side.

As you lift the unit out of the bottom case, the fan remains attached to the front of the power supply.

5 If you’re replacing the power supply, remove the speaker from the back of power supply case.

To do this, detach the speaker cable from the cable clip, then turn the speaker counter-clockwise.

Assembly Notes

♦ Before installing a new power supply, adhere a cable clamp to the back of the case, directly above the rightside of the power supply label. Then thread the speaker onto the stud on the rear of the power supply box.Tighten the speaker snuggly, but do not over tighten. The speaker cable should be at the 4:00 position whenthe speaker is properly mounted.

♦ To install the power supply into the bottom case, do the following:

a Seat the AC plug and switch in its opening in the bottom case first.

b Flex the other side of the bottom case and lower the power supply into place. Make sure that the twotabs engage the slots in the power supply, and that the tab on the other side also seats in its slot.

c Once the power supply is seated, secure it to the bottom case with the two black M3x6 PHP screws.

Lift this edge out first, then pullthe other side of the power supplyfrom the bottom case.

Flex the sides of the bottom case todetach the hooks from their guides in thepower supply.


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The optical engine is located in the front of the 400 Series of projectors. The optical engine assembly includesall the components in the light path. A metal halide lamp is focused through a condenser lens and is then passedthrough a spinning color wheel. The resulting light pulses are concentrated on a micro-mechanical chip calledthe Digital Micromirror Device (DMD). Inside the DMD are hinged, microscopic mirrors—one for each pixel.The mirrors turn ‘on’ and ‘off’, according to data sent from the controller ECA and the formatter ECA.

The complete optical engine also includes the projection lens, the photodiode, the lamphouse, the lamp module,and the thermal switch. The photodiode, the lamp, the lamphouse and the thermal switch also are availableindividually as FRUs.

Note—The optical engines used in the 400 Series are not interchangeable among the different models. SeeFRU Parts Lists for more information.

To access the optical engine, you need to remove the following FRUs:










1 If you didn’t remove the lamp module, move the slider on the lamp module housing toward the front untilthe connector disengages.


2 Detach the two spade connectors on the thermal switch cable.


3 Detach the photodiode cable from its connector on the controller ECA.

The photodiode is located on the top of the optical engine housing on the power switch side of the projector.

4 Remove the two M3x6 PHP screws that fasten the engine to the bottom case.

One screw is located near the center of the optical engine behind the metal condenser lens housing.

The other screw is located in a recess near the side of the engine housing nearest the power switch.

The other M3 x 6 PHP screwis located in this recess.


5 Lift the optical engine and the attached lamphouse out of the projector.

Assembly notes

♦ Before installing a new optical engine, you need to attach new engine gaskets (available in the gasket kit:505-0313-xx). The kit includes three gaskets, the DMD gasket, the color wheel gasket, and the shroudgasket. The gaskets help direct air circulation around the optical engine for proper cooling.

♦ When seating the engine in the bottom case, align the two studs in the bottom case with the recesses on thebottom of the engine housing. You may need to press the engine in an LP435z against the power supply toseat it correctly.

Insert the DMD gasketbetween the DMD flex

ECA and the metalengine housing.

DMD flex ECA

Metal enginehousing

Screw guide

Remove the plasticbacking on the shroudgasket and attach it to thetop of the plastic enginehousing adjacent to thecolor wheel.

Remove the plastic backing onthe color wheel gasket andattach it to the color wheelhousing. The gasket shouldtouch the edge of the screwguide.


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The base EMI shield (330-0433-xx) rests on the inside of the bottom case. The shield prevents electromagneticinterference from escaping out of the bottom of the projector.

To access the base EMI shield, you must first remove the FRUs listed below. We suggest you remove them inthe following order:








8 Controller ECA (see page 97) 1

9 Power supply (see page 102) 2


11 Optical engine (see page 104) 3

1 You can leave the I/O EMI shield attached to the controller ECA.

2 You can leave the speaker attached to the power supply.

3 You can leave the photodiode, the lamphouse and the lamp module attached to the optical engine.


♦ Lift the old base EMI shield from the projector.

Optical engine gaskets


Assembly notes

♦ Before placing the new base EMI shield into the projector, adhere two engine gaskets (available in thegasket kit: 505-0313-xx).

♦ Place the shield in the bottom case, making sure it seats correctly over the round keys in the bottom case.


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The elevator (505-0312-xx) is comprised of four pieces: the elevator shaft, the elevator actuator, as well as aspring for the shaft and a spring for the actuator. The elevator shaft fits inside the elevator housing, which is partof the bottom case.

To access the elevator assembly, you must first remove the FRUs listed below. We suggest you remove them inthe following order:








8 Optical engine (see page 104)

Note—This procedure shows how to replace the entire elevator assembly. If you only need to replace theelevator shaft (and not the elevator actuator), you need only remove FRUs as far as the top case. You can

leave the other FRUs in place. Once you remove the top case, follow the first three steps below.

After the above items are removed, do the following:

1 Lift the front of the bottom case, then press the elevator actuator to drop the elevator shaft all the way down.

Keep your finger on the actuator as you do the next step.

2 Use a bladed screwdriver to depress the small tab on the elevator shaft near the top of the elevator housing.

When you depress the tab, the elevator shaft detaches from the elevator actuator.

3 Pull the elevator shaft out of its housing through the outside of the bottom case.


4 To remove the actuator arm, pull it out of the elevator shaft, then twist it 90 degrees to get it through thehole in the bottom case.

Assembly Notes

♦ Before you install the new elevator shaft and actuator, attach the springs to each piece. The long spring fitson the elevator shaft, and the short spring fits on the actuator.

♦ To install the elevator assembly, do the following.

a Insert the actuator arm through the hole in the bottom case and into the elevator housing.

b Insert the elevator shaft into the elevator housing from the bottom.

c Press the actuator until it engages the elevator shaft

d Make sure the actuator fully engages the notches on the elevator shaft by moving the elevator up anddown several times.

The narrow end of the spring facesoutward on the elevator shaft.

Actuator spring


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The bottom case (505-0253-xx) encloses the bottom and the right and left sides of the 400 Series. When youreplace the bottom case, you must first remove all the FRUs in the old case, then install them in the new bottomcase.

To access the bottom case, you need to remove the FRUs listed below. We suggest you remove them in thefollowing order:








8 Controller ECA (see page 97)



11 Power supply (see page 102)


13 Base EMI shield (see page 107)

14 Elevator assembly (see page 109)

Once you finish removing the above items, remove the product serial number label from the old bottom case andset it aside. Peel the label carefully so you don’t tear it. You’ll attach it to the new bottom case.

Assembly Notes

♦ When you replace the bottom case, you need to attach a new Certification Label to the bottom side of thecase. The label contains safety information, a list of regulatory agency approvals and a statement ofcompliance with FCC standards.

Product serial number label

Certification label


Upgrading the Software in the 400 Series

InFocus recommends that you upgrade the system software to the latest version during projector repair and maintenance. Use the procedure below to load new software into the projector’s flash ROM.

To upgrade the software, you need:

♦ the software files (Available on the InFocus Web site or http://www.infocus.com/service/asp. Once you sign into the ASP center, go to the home page for the projector you want to upgrade.)

♦ a serial download cable (part number 210-0087-xx)

♦ a CableWizard2

♦ an IBM-compatible computer

Generally, you follow these steps when you upgrade software:

a Load the software into the PC you’ll use to upgrade the projector.

b Connect the projector to the computer.

c Install the software on the projector.

d Confirm that the upgrade is successful.

Note—The SP-CWRS232 Connector is now an option for flashing InFocus projectors. This adapter attaches to the CableWizard connector on the I/O panel on the projector. A serial null modem cable (available at most electronic supply stores) plugs into the RS-232 side of the adapter. The other end of the cable plugs into the serial connector on the computer. You no longer need to use the special download cable or a CableWizard 2 to flash a projector.

Using the SP-CWRS232 Connector allows you to flash projectors in the field, using only the adapter, cable and laptop computer. You no longer need to take down a ceiling-mounted projector to upgrade its software

Go to the next page to begin.

http://store.infocus.com/service/software/index.htm


Getting the software upgrade file ready to install in the projector

When you download the upgrade software from the InFocus Web site, you receive a single file (called an‘.EXE’) that contains all the upgrade files you need for the projector. Before you download the file, you choosewhere to store the .EXE file on your computer’s hard drive.

Here’s how you prepare the upgrade file to upgrade the projector.

1 Open Windows Explorer on your computer.

To do this, click the Start button, point to Programs, then click Windows Explorer.

2 In Windows Explorer, locate the .EXE file that contains the upgrade files, then double-click it.

The WinZip Self-Extractor dialog box appears, asking you where you want to store the upgrade files.

You can enter a folder name in the Unzip To Folder box.

You also can let WinZip create a folder on its own. For example, WinZip will store the files for the LP425in a folder called 425 (likewise, for the LP400, the folder name is 400).

3 To extract the files, click Unzip.

The upgrade files appear in the folder you specified.

Now you’re ready to install the software.


Connecting the projector to the computer with CableWizard2

1 On the CableWizard 2, turn the selector until “Mac” appears in the CableWizard window.

2 Plug the PS/2 end of the serial cable into the PS/2 connector on the CableWizard.

3 Plug the other end of the serial cable into Communication Port 1 (COM1) on the computer.

4 Connect the CableWizard2 to its connector on the projector I/O panel.

Note—You can also attach the serial cable to COM2. These instructions address use of either serialport.

Installing the software on the projector

Before you begin, make sure:

♦ the computer is turned on,

♦ the projector is plugged into a power source,

♦ the projector is turned off, and

♦ the cables are securely connected.

1 In Windows Explorer, double-click the batch file (425.bat, for example) to begin.

The MS-DOS window opens and displays instructions and the upgrade status.

Batch fileCom2 batch file


2 When the prompt Press any key to continue appears, press any key on the computer keyboard.

A second screen appears, again with the prompt, Press any key to continue.

3 Press a key on the computer keyboard.

The message, Turn the projector on now, appears.

You’ll also see a rotating timer line, which means the computer is attempting to make contact with theprojector.

4 Power up the projector within five seconds of the appearance of the timer.

The upgrade files begin downloading to the projector. The entire upgrade process lasts about three minutes.

If you see the message No response, it means the projector wasn’t powered up in time or it isn’t connectedproperly. If this happens, check the connections, then try again.

Warning—Unplugging the projector, turning the computer off, or unplugging the CableWizard whilethe upgrade files transfer can damage the controller ECA. Make sure the projector and the computer

are stable and that all cables are tightly plugged into both machines at the proper locations.

When the installation is complete, the projector restarts using the new software. The restart sequence takesabout one minute.

Rotating timer line


Confirming the software upgrade

1 On the projector keypad, press Menu to display the menus.

If the software upgrade was installed successfully, the new software version number appears on the upperright-hand portion of the menu’s status bar.

Note—To verify that the projector is working properly, you need to complete all the functional tests inthe next section.


Performing Functional Tests on the 400 Series You perform the functional tests after you’ve repaired the projector to make sure all components of the projector operate properly. You can also perform the functional tests if you’re having trouble determining what is wrong with the projector.

Below is the list of the equipment you need for the functional tests. Following that is the list of tests you need to complete.

Required equipment

♦ CableWizard2 with accessories

♦ Video player with composite and S-video Out and cables

InFocus strongly suggests you use a DVD player to test the video quality. DVD players reproduce colors better and project sharper images. The second preference is a laser disc player. The least preferable is a VCR. If you use a VCR, make sure you use a commercially produced recording, not one recorded from a broadcast source. The VCR must include an S-video connector in addition to a composite connector.

♦ Commercially produced video in DVD, laser disc or video cassette format

♦ PC with a CD-ROM drive and an available serial port

♦ RGB test screens

You can download this file from the InFocus Web site (http://www.infocus.com/service/asp).

♦ Multimedia presentation for the PC

For example, you can use a PowerPoint presentation with sound, photographs, graphics and .avi files.

♦ Executive Plus remote control with good batteries

♦ Projection screen

Functional tests required for the 400 Series

♦ Projector setup and external inspection

♦ Projector start-up sequence

♦ RGB video and audio quality

♦ Composite and S-video and audio quality

♦ Keypad operation and user interface

Go to the next page to begin the tests.

www.infocus.com/service/asp


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1 Place the projector on the work surface.

a Verify that the top and bottom cases and projection lens are clean.

b Verify that there are no broken or missing parts.

c Verify that the outside case is not cracked or missing any fasteners.

2 Hold the projector securely with both hands and shake it.

a Verify that no loose parts rattle around inside the projector.

3 Place the projector on its side on a level surface.

a Verify that the elevator foot and the two rear feet are present.

b Verify that the certification label and the serial number label are attached to the bottom case.

c Verify that the top and bottom cases are fastened tightly together and that no pieces are loose.

4 Place the projector right side up, and set up the projection screen about 6½ feet (2 meters) away from theprojector.

You should also be able to dim or turn off the lights when testing video sources.

5 Connect the following cables and equipment to the projector:

♦ A laser disc player through the Composite video connector.

An S-video connector should also be plugged into the laser disc player, but not into the S-videoconnector on the projector.

♦ Stereo audio cables from the laser disc player to the left and right Audio In connectors on the projector.

♦ The PC through CableWizard2 to the CableWizard port. The PC should contain the multimediapresentation and RGB test screens on its hard drive.

♦ The power cord to the power cord connector and to a power source.


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1 Press the Power button on the keypad.

a Verify that the keypad is backlit.

b Verify that the projection lamp strikes within 10 seconds.

c Verify that the InFocus splash screen appears and that the image is bright and in sharp focus.

2 Adjust the projector height so the image fits in the middle of the screen.

a Verify that the elevator raises and lowers smoothly.

3 Adjust the zoom so that the splash screen fills the projection screen, then focus the image. (LP425z andLP435z only)

a Verify that the image size smoothly enlarges and reduces when you turn the zoom ring.

b Verify that the image focuses sharply when you turn the focus ring.

c Verify that the focus and zoom rings rotate freely and do not interfere with each other.

4 Focus the image on the screen. (LP420, LP425, LP400)

a Verify that the image focuses sharply when you turn the focus ring.


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Special Note—In this section, you’ll check computer video quality through the CableWizard input. Note thatcolor and image quality vary slightly from projector to projector, due to engine manufacturing variances.

Each projector that InFocus ships must meet InFocus’ specifications at the time of manufacture.

1 Power up the PC.

2 Set the resolution for the projector that you’re testing.

♦ For the LP400, LP420, LP425 and the LP425z, set the resolution to 800 x 600 (SVGA)

♦ For the LP435z, set the resolution to 1,024 x 768 (XGA).

♦ For all 400 Series projectors, set the color palette to True Color (16 bit) or High Color (32 bit).

To check the computer resolution in Windows 95/98, click the Start button, point to Settings, then clickControl Panels. In the Control Panels window, double-click Display. In the Display Properties dialog box,click the Settings tab. The current resolution is displayed in the Desktop Area box.

To check the computer color palette, follow the above procedure. The current color palette is displayed inthe Color Palette box.

3 Dim or extinguish the room lighting.

4 Open the multimedia presentation on the PC and project it on the screen with the 400 Series.

a Verify that the image appears in sharp color and focus.

b Verify that the photographs and graphics reproduce well.

c Verify that the video or .avi files play smoothly.

d Verify that the computer audio is clearly reproduced through the internal speaker.

5 Close the multimedia presentation.

6 On the PC, open the folder that contains the test screens.

7 Open the Focus test screen (focus.bmp) and display it on the screen.

a Verify that when you focus the center of the screen that the square at each corner remains in sharpfocus. You should be able to read the numbers above each outside square.


8 Open the Crosshatch test screen (Crosshatch.bmp) and display it on the screen.

a From a 6½-foot distance (~2 m), verify that the circles and squares are in focus and are not flashing.

Crosshatch test screen

9 Open the Color Ramp test screen (Color ramp.bmp) and display it on the screen.

a From a 6½-foot distance (~2 m), verify that the far left side of the screen is dark and that the far rightside is red, green and blue. The transition from left to right should be smooth.

Color Ramp test screen


10 Open the SMPTE 133 test screen (SMPTE133.bmp) and display it on the screen.

a From a 6½-foot distance (~2 m), verify that:

♦ The two sets of color bars match

♦ The text on all four sides is readable

♦ The gray bars reproduce clearly

SMPTE 133 test screen


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Special Note—In this section, you’ll check for video quality through the composite and S-video ports. Video quality is a subjective test, and you may find that you feel the video quality in the projector you’re testing is good or that it does not meet your own personal standards. That’s why we want you to check the video for distorted images, torn frames or excessive noise.

The color and image quality varies slightly from projector to projector, due to engine manufacturing variances. Each projector that InFocus releases for shipment must meet InFocus’ quality control specifications.

1 Confirm that the DVD or laser disc player is plugged into the composite video port on the 400 Series I/O panel.

The S-video connector should not be plugged into the projector.

2 Start the video in the DVD/laser disc player.

3 On the remote control, press the Video button.

a Confirm that the remote control works properly.

b As you watch the video, confirm that the general image displays no distortion, noise or other video abnormalities.

4 Change the volume up (+) and down (-) on the remote control.

a Verify that there is clear audio from the internal speaker.

b Verify that the volume raises and lowers as you press the volume buttons.

Tip—After you’ve tested the video on more projectors, you’ll probably find several scenes in one or more movies that provide you with a good reference for color reproduction and contrast. You’ll get a feel for what’s appropriate for a projector and what indicates a possible problem. Once you identify the scenes, try to use the same ones for each projector you test.

You can also obtain a copy of the Video Essentials DVD or laser disc from Amazon.com (www.Amazon.com). The Video Essentials disc includes an excellent video montage that is the industry

standard for testing video.

5 Without stopping the video, unplug the composite video connector, then plug in the S-video connector.

a Verify that the S-video signal automatically synchronizes.

b Verify that there is no distortion, noise or other video abnormality.

6 Let the video continue to play as you go to the next section.

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The video should be playing as you begin this portion of the functional tests.

Note—The menus on the LP400, LP425z and LP435z are Windows-style dropdown menus. The menus forthe LP420 and LP425 are the graphical tab style. The tab layout matches the dropdown menu structure with

one exception. The LP400, LP425z and LP435z contain an additional Status menu.

1 Check the onboard keypad button operation.

a Press the Volume keys (both + and –) and verify that the Volume scale on the bottom left portion of thescreen moves and that the sound gets louder and softer.

b Press the Standby button and verify that the projector goes into standby mode.

2 Stop the video.

3 Press the Menu button on the keypad to display the menu bar or the menu tabs.

a While performing the tests below, confirm that all four arrow keys and both of the mouse buttons workproperly.

b On the Controls menu or tab, do the following:

♦ Select Ceiling Projection, then verify that the image flips. (Does not apply to the LP420)

♦ Select Rear Projection, then verify that the image reverses.

♦ Verify that Default Source is set to Computer 1.

♦ Verify that the Auto Source Select is set to Off.

c On the Status menu, verify that the latest software version is installed and that the lamp counter showsless than 900 hours. (This information is at the top of the tab box on the LP420 and LP425.)

If the counter is between 900 and 1,000 hours, notify the customer that it’s nearly time to replace thelamp.

d On the Display menu or tab, select Reset All

4 Press the Menu button to hide the menus or tabs.

5 Turn the projector off.

6 Disconnect the power cable.

7 Attach the lens cap to the projection lens.


400 Series Parts Lists

Introduction

In this section, you’ll find the parts lists for the 400 Series projector. We’ve included the following lists:

♦ FRU parts by alphabetic listing

♦ FRU parts by part number

♦ Standard accessories

♦ Optional accessories

♦ Fasteners


FRU Parts Lists

The two tables below list all the field-replaceable units for the 400 Series. In the first table, the FRUs are sorted alphabetically, and in the second, the FRUs are sorted numerically.

FRUs, by alphabetic listing

Part Name Projector Part Number Notes

Bottom case All 505-0253-xx Also order a new certification label for the bottom case.

Base EMI shield All 330-0482-xx Requires two grounding gaskets included in the Gasket Kit (505-0313-xx).

LP420 510-1305-xx Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

LP425 510-1401-xx Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

LP400 LP425z

510-1434-xx Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

Controller ECA

LP435z 510-1420-xx Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

Elevator assembly All 505-0312-xx Includes elevator actuator, elevator shaft, and two springs. Elevator housing is included with bottom case. Sliding doors and handrails are optional.

EMI clip LP435z 329-0177-xx Fits between the DMD and the power supply. Must be used with LP435z formatter bracket.

Fastener kit All 802-0017-xx Contains 10 of each fastener used to attach FRUs to the projector. See Fasteners for contents listing.

LP400 LP420 LP425

505-0250-xx Focus ring

LP425z LP435z

328-0094-xx

LP400 LP420 LP425 LP425z

330-0435-xx Formatter bracket

LP435z 330-0528-xx

LP400 510-1431-xx

LP420 510-1304-xx

LP425 510-1355-xx

LP425z 510-1402-xx

Formatter ECA

LP435z 510-1421-xx


FRU parts, by alphabetic listing


LP400 LP420 LP425

505-0293-xx Also order a Logo Label for the front bezel. Front bezel

LP425z LP435z

505-0404-xx Also order a Logo label for the front bezel.

Gasket kit All 505-0313-xx Kit includes complete gasket set for one projector.

♦ Three optical engine gaskets

♦ One DMD thermal gasket (for LP435z)

♦ Two grounding gaskets for the base EMI shield

♦ One round 3.5 mm audio EMI gasket

♦ One I/R receiver gasket

♦ One top case gasket

IR window All 340-0387-xx

I/O EMI shield All 330-0434-xx

Keypad ECA All 526-0006-xx Also requires an I/R receiver gasket included in the Gasket Kit (505-0313-xx).

LP400 020-0865-xx

LP420 020-0752-xx

LP425 020-0820-xx

LP425z 020-0840-xx

Label, certificat ion

LP435z 020-0842-xx

Label, InFocus nameplate

All 020-0779-xx

Label, model LP400 020-0866-xx

LP420 020-0753-xx

LP425 020-0821-xx

LP425z 020-0841-xx

LP435z 020-0843-xx

Lamp door All 340-0390-xx

Lamphouse All 505-0256-xx

LP400 LP420 LP425

505-0304-xx Lamp module

LP425z LP435z

505-0452-xx Use this lamp in the LP425z and LP435z only.


FRU parts, by alphabetic listing


LP400 LP420 LP425

505-0235-xx Lens cap

LP425z LP435z

340-0573-xx Clear lens cap fits zoom lens only.

LP400 LP420 LP425

526-0002-xx Order 526-0002-xx until stock is depleted. Then 526-0025-xx will be the only micro-fan available for all the projectors in the 400 Series.

Do not use 526-0002-xx with the LP425z or the LP435z.

Micro-fan

LP425z LP435z

526-0025-xx This part is backwards compatible with the LP420, LP425, and LP400.

LP400 530-0103-xx Also install new optical engine gaskets from the gasket kit (505-0313-xx).

LP420 530-0088-xx Also install new optical engine gaskets from the gasket kit (505-0313-xx).

LP425 530-0090-xx

530-0101-xx

The part number of the LP425 engine changed. The engines are identical. 530-0090-xx will ship until stock is depleted. Then 530-0101-xx will be the only engine available for the LP425.

Also install new optical engine gaskets from the gasket kit (505-0313-xx).

LP425z 530-0097-xx Also install new optical engine gaskets from the gasket kit (505-0313-xx).

Optical engine

LP435z 530-0100-xx Also install new optical engine gaskets from the gasket kit (505-0313-xx).

Photodiode All 701-0018-xx

Power supply All 520-0069-xx Self-adhering cable clip from fastener kit (802-0017-xx) also required.

Rear bezel All 505-0255-xx Also order a product label for the rear bezel.

Rubber foot All 328-0029-xx

Speaker All 526-0001-xx

Thermal switch All 215-0010-xx Requires two new retainer caps (available in the fastener kit).

LP400 LP420 LP425 LP425z

505-0252-xx Top case

LP435z 505-0441-xx

Zoom ring LP425z LP435z

340-0576-xx


FRUs, by part number

Part Number Part Name Projector Notes

020-0865-xx Label, certification LP400



020-0840-xx Label, certification LP425z

020-0842-xx Label, certification LP435z

020-0779-xx Label, InFocus nameplate

All

020-0866-xx Label, model LP400



020-0841-xx Label, model LP425z

020-0843-xx Label, model LP435z

215-0010-xx Thermal switch All Requires two new retainer caps (also called Tinnerman nuts) included in the fastener kit (802-0017-xx).

328-0029-xx Rubber foot All

328-0094-xx Focus ring LP425z LP435z

329-0177-xx EMI clip LP435z Fits between the DMD and the power supply. Must be used with LP435z formatter bracket.

330-0434-xx I/O EMI shield All

330-0435-xx Formatter bracket LP400 LP420 LP425 LP425z

330-0482-xx Base EMI shield All Requires two grounding gaskets included in the gasket kit (505-0313-xx).

330-0528-xx Formatter bracket LP435z Also requires EMI clip (329-0177-xx) and DMD gasket (included in gasket kit, 505-0313-xx)

340-0387-xx IR window All

340-0390-xx Lamp door All




340-0576-xx Zoom ring LP425z LP435z

505-0250-xx Focus ring LP400 LP420 LP425

505-0252-xx Top case LP400 LP420 LP425 LP425z

505-0253-xx

Bottom case All Also order a new certification label for the bottom case.

505-0255-xx Rear bezel All Also order a model label for the rear bezel.

505-0256-xx Lamphouse All

505-0293-xx Front bezel LP400 LP420 LP425

Also order an InFocus nameplate label for the front bezel.

505-0304-xx Lamp module LP400 LP420 LP425

505-0312-xx Elevator assembly All Kit includes elevator actuator, elevator shaft, and two springs. Elevator housing is included with bottom case.

505-0313-xx Gasket kit All Kit includes complete gasket set for one projector.

♦ Three optical engine gaskets

♦ One DMD thermal gasket (for LP435z)

♦ Two grounding gaskets for the base EMI shield

♦ One round 3.5 mm audio EMI gasket

♦ One I/R receiver gasket One top case gasket

505-0404-xx Front bezel LP425z LP435z

Also order an InFocus nameplate label for the front bezel.

505-0441-xx Top case Lp435z

505-0452-xx Lamp module LP425z LP435z

Use this lamp in the LP425z and LP435z only.

510-1304-xx Formatter ECA LP420

510-1305-xx Controller ECA LP420 Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).


510-1401-xx Controller ECA LP425 Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

510-1402-xx Formatter ECA LP425z




510-1420-xx Controller ECA LP435z Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

510-1421-xx Formatter ECA LP435z


510-1434-xx Controller ECA LP400 LP425z

Requires audio EMI gasket included in the Gasket Kit (505-0313-xx).

520-0069-xx Power supply All Requires self-adhering cable clip from fastener kit (802-0017-xx).

526-0001-xx Speaker All

526-0002-xx Micro-fan LP400 LP420 LP425

Order 526-0002-xx until stock is depleted. Then 526-0025-xx will be the only micro-fan available for all the projectors in the 400 Series.

Do not use 526-0002-xx with the LP425z or the LP435z.

526-0006-xx Keypad ECA All Requires an I/R receiver gasket included in the Gasket Kit (505-0313-xx)

526-0025-xx Micro-fan All This part is backwards compatible with the LP420, LP425, and LP400.

530-0088-xx Optical engine LP420 With new engine, install a new optical engine gaskets from the gasket kit (505-0313-xx).

530-0090-xx 530-0101-xx

Optical engine LP425 The part number of the LP425 engine changed. The engines are identical. 530-0090-xx will ship until stock is depleted. Then 530-0101-xx will be the only engine available for the LP425.

With new engine, install a new optical engine gaskets from the gasket kit (505-0313-xx).

530-0097-xx Optical engine LP425z With new engine, install a new optical engine gaskets from the gasket kit (505-0313-xx).

530-0100-xx Optical engine LP435z With new engine, install a new optical engine gaskets from the gasket kit (505-0313-xx).

530-0103-xx Optical engine LP400 With new engine, install a new optical engine gaskets from the gasket kit (505-0313-xx).

701-0018-xx Photodiode All

802-0017-xx Fastener kit All Contains 10 of each fastener used to attach FRUs to the projector. See Fasteners for contents listing.


Standard Accessories

Accessory Projector Part Number Notes

Online User's Guide All 010-0116-xx CD-ROM format

LP420 009-0314-xx

LP425 009-0365-xx

Quick Start card

LP400 LP425z LP435z

009-0379-xx

LP420 LP425

010-0140-xx

LP400 010-0201-xx

User’s Guide

LP425z LP435z

010-0192-xx

Soft Case All 110-0190-xx

Lens Cap LP400 LP420 LP425

505-0235-xx

Lens cap LP425z LP435z

340-0573-xx

Macintosh Adapter LP420 LP425

515-0045-xx

CableWizard Lite and cables (listed below)

LP400 LP420 LP425

210-0095-xx Length: 6.5 feet/2 meters

Audio cable 210-0118-xx Length: 6 feet

Audio/Video cable 210-0053-xx

CableWizard3 and cables (listed below)

LP425z LP435z

SP-CW3

CableWizard audio cable

210-0079-xx Length: 2 feet

CableWizard USB cable

210-0100-xx Length: 2 feet

CableWizard PS/2 mouse cable

210-0145-xx Length: 1.5 feet


Standard accessories, continued

Accessory Projector Part Number Notes

LP400 LP420 LP425

505-0304-xx Lamp module

LP425z LP435z

505-0452-xx Use this lamp in the LP425z and LP435z only.

Executive Plus Remote LP425z LP435z

HW-EXPLUS Six button IR remote with a disc mouse. Two AA batteries included.

Power Cord (One power cord ships with each projector. The type of cord depends on the country.)

Swiss 210-0031-XX

North American 210-0023-XX

Australian 210-0027-XX

British 210-0028-XX

European 210-0029-XX

Danish 210-0030-XX


Optional Accessories

Accessory Part Number Item Code Notes

Lamp module for the LP400, LP420 and LP425

505-0304-xx SP-LAMP-LP4 270-watt metal halide, rated at 1,000 hours.

Lamp module for LP425z and LP435z

505-0452-xx SP-LAMP-LP4Z 270-watt metal halide, rated at 1,000 hours. Use this lamp module only with the LP425z and LP435z.

GyroPoint Pro II RF Remote

HW-RF-REM HW-RF-REM The GyroPoint Pro II Radio Frequency Remote allows control of projector without being in line of sight of either the projector or computer. No CableWizard or additional receivers required.

Executive Remote Control

590-0226-xx HW-EXREM Two button remote. Requires CableWizard2, CableWizard3, or an Executive Remote IR Receiver for full functionality.

Executive Remote IR Receiver

590-0243-xx HW-EXRCVR Connects to a PC or laptop. Allows direct mouse control of PC without connection to projector or CableWizard.

Executive Remote Plus

590-0294-xx HW-EXPLUS Ships with LP425z and LP435z. Compatible with entire 400 Series.

LaserPro Remote Control

590-0275-xx HW-LASERPRO Provides expanded remote control of projector. Special features include Laser Pointer. (Some features on the LaserPro remote do not work on the 400 Series)

CableWizard2 SP-CW2 SP-CW2 Allows MAC compatibility, power-off loop-through, or serial connection for projector control.

Length: 10.3 feet/3.14 meters. Weight: 4.8 lbs./2.2 kg

CableWizard3 SP-CW3 SP-CW3 CableWizard3 supports USB mouse control with Windows 98 and provides audio, monitor loop through and mouse control close to your computer source.

Length: 7 feet/2.1 meters Weight: 1.4 lbs/0.61 kg

CableWizard Extension Cable

210-0104-xx SP-CW2EXT Cable is 60.7 ft. (18.5 meters) in length. Not plenum rated.

CableWizard Extension Cable (Plenum rated)

210-0103-xx SP-CW2EXTP Cable is 60.7 ft. (18.5 meters) in length. Plenum rated.

CableWizard2 Extension Cable

SP-CW2-IEXT SP-CW2-IEXT Cable is 70.5 ft. (21.5 m) in length. Designed to be installed in conduit at least 1 inch (2 cm) in diameter. Replaces the standard 10-foot (3 m) CableWizard2 cable. Not compatible with CableWizard3.


Optional accessories, continued

Accessory Part Number Item Code Notes

Extension Cable Wall Plate

SP-CWWALL SP-CWWALL In ceiling-mount applications, provides clean, finished appearance for cable exit.

LiteMount 4 ceiling mount

SP-CEIL-LM425 SP-CEIL-LM425 Allows the 400 Series to be mounted on most ceilings. Includes a quick release for maintenance and service.

Weight: 6 lbs/2.7 Kg. Dimensions: 5.5"(h) x 8"(w) x 12"(l)/ 14 cm x 20 cm x 30.5 cm

LiteMount pipe tubing extension

SP-LTMT-EXT SP-LTMT-EXT Allows cable drop to projector of up to 46” in false ceiling installation.

Tripod mount for the 400 Series

SP-TRIP-LP4 SP-TRIP-LM4 Includes tripod, projector mounting plate and fasteners. No tools required. Tripod adjusts from 2-5 feet.

Weight: 4 lbs./1.8 kg.

Kensington Lock 591-0202-xx SP-KENLOC Key lock and cable set provides security against product theft.

S-video cable 515-0027-xx 515-0027-xx

Personal Plus Pack

SP-PP-LP420 SP-PP-LP4 Deluxe Soft Carrying Case with space for a laptop. Includes CableWizard3 and a two-button Executive Remote.

Executive leather case

CA-C133 CA-C133 Great briefcase for everyday. Includes space for a laptop.

Deluxe soft case CA-C132 CA-C132 Soft carry case has curved handles and shoulder strap; includes space for laptop computer.

CA-C134 CA-C134 ATA case designed for the LP400, LP425 and LP420. Heaviest and most durable. Reinforced for maximum protection. Includes space for accessories.

ATA shipping case

CA-C134z CA-C134z ATA shipping case designed for the LP425z and LP435z.

3rd Year Advantage Service Plan

EW-LP4XX-12 EW-LP4XX-12 Extends standard two-year product warranty by one year.


Fasteners

The fasteners listed below are used in the 400 Series. The fastener kit (802-0017-xx) contains 10 each of the fasteners necessary to remove and replace all FRUs in the projector.

Size Used in

M2.6 x 8 Pan Head P hillips EMI shield mounting to CableWizard port

M3 x 6 Torx with captive lock washer Controller ECA to power supply. Formatter bracket to controller ECA

M3 x 6 Pan Head P hillips Optical engine, lamphouse to optical engine, micro-fan

M3 x 6 Black Pan Head P hillips Power supply, rear bezel, center fastener for front bezel

M3 x 16 Standoff Controller ECA

M4 x 80 black P hillips Bottom case to upper case

Retainer caps (also called Tinnerman nuts) Thermal switch to lamphouse

Self-adhering plastic coated cable clips Cable routing for power supply and optical engine

infocus lp400 service manual

Documents