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8/4/2019 Manual de Laptop a Desarmar

1/95

Maintenance & Service GuidePresario 1200 Series

Model: 1245

|Home Page |Notice | Preface | Product Description | Troubleshooting

Il lustrated Parts Catalog | Removal & Replacement Procedures|Specifications

Pin Assignments|Battery Pack Operations

Welcome to the Maintenance & Service Guide for the Presario Model 1245...

Notice

Preface

Product

Description

Troubleshooting

Illustrated

Parts Catalog

Removal &

ReplacementProcedures

Specifications

Connector P in

Assignments

Battery Pack

Operations

This online guide is designed to serve the needs of those whose job it is to repair Compaq products.

This Guide will be periodically maintained and updated online as needed.

For content comments or questions, contact Customer Support.

To report a technical problem, contact your Regional Support Center or IM Help Center.
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications


Notice

The information in this guide is subject to change without notice.

COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL

OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FORINCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THEFURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

This guide contains information protected by copyright. No part of this guide maybe photocopied or reproduced in any form without prior written consent fromCompaq Computer Corporation.

1999 Compaq Computer Corporation.

All rights reserved. Printed in the U.S.A.

Compaq, Presario Registered U. S. Patent and Trademark Office.

Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.Windows 98 is a trademark of Microsoft Corporation.

The software described in this guide is furnished under a license agreement or

nondisclosure agreement. The software may be used or copied only in accordance withthe terms of the agreement.

Product names mentioned herein may be trademarks and/or registered trademarks oftheir respective companies.

Maintenance and Service Guide

Compaq Presario 1200 Series Portable Computers

First Edition (June 1999)Compaq Computer Corporation


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PrefaceThis M a in t e n a n c e a n d S e r v ic e Gu i d e is a troubleshooting guide that can be used forreference when servicing the Compaq Presario Model 1245 Portable Computer.

Compaq Computer Corporation reserves the right to make changes to the Model 1245 without notice.

S y m b o ls

The following words and symbols mark special messages throughout this guide.

WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodilyharm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment orloss of data.

IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.

NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information.

T e c h n ic ia n N o t e s

WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repairprocedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boardsand subassemblies, the user should not attempt to make repairs at the component level or to make modifications to anyprinted circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printedcircuit board modifications may void any warranty.

S e ria l N u m b e r

When requesting information or ordering spare parts, the computer serial number should beprovided to Compaq. The serial number is located on the bottom of the computer.

Lo c a t in g A d d it io n a l I n f o r m a t i o n

The following documentation is available to support this product:

q Compaq Presario 1200 Series Portable Computer documentation setq Introducing Windows 95 Guideq Service Training Guidesq Compaq Service Advisories and Bulletinsq Compaq QuickFindq Compaq Service Quick Reference Guide


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Product Description

M o d e ls a n d Fe a t u r e s

Co n t r o ls a n d Lig h t s

Le f t S id e

Co m p o n e n t s

R i g h t S i d e

Co m p o n e n t s

B o t t o m o f U n it

R e a r Co n n e c t o r s

Po w e r Ma n a g e m e n t

f o r W in d o w s 9 8

Compaq PresarioPortable

Computers...

are acontinuationof newgenerationmultimediaportablecomputerswith

innovativeintegrateddesigns,outstandingaudio andvideo,advancedcorefeatures, andattractivestyling.

T h is f u ll-

f u n c t i o n ,

AMD-K6

p o r t a b l e

c o m p u t e r

a llo w s f u lld e s k t o p

f u n c t i o n a l i t y .


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Illustrated Parts Catalog | Removal & Replacement P rocedures|Specifications


Models & Features

M o d e ls a n d

F e a t u r e s

Co n t r o ls a n d

L igh t s

L e f t S i d e

Co m p o n e n t s

R i g h t S i d e

Co m p o n e n t s

B o t t o m o f

U n i t

R e a r

C o n n e c t o r s

P o w e r

M an a g e m e n t

Compaq Presario 1200 SeriesPortable Computer Model 1245

Display 12. 1" HPA

Processor AMD-K6II 333-MHz MMXHard Drive 3.2-GB

CD Drive 24 MAX

Modem 56K Metis (or) 56K Khan

Battery ES NiMH

System Memory 32 MB


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Pin Assignments|Battery P ack Operations

Controls and Lights

M o d e ls a n d

F e a t u r e s

Co n t r o ls a n d

L igh t s

L e f t S id e

Co m p o n e n t s

R i g h t S i d e

Co m p o n e n t s

B o t t o m o f

Un i t

R e a r

C o n n e c t o r s

P o w e r

Ma n a g e m e n t

f o r W in d o w s

9 8

Front PanelComponents

1 . D is p la y

2 . P o w e r

B u t t o n

3 .

K e y b o a r d

4 . T o u c h P a d

5 .

S p e a k e rs &

P o r t s

6 . P a lm r e s t

7 . ( L)

T o u c h P a d

B u t t o n

8 . ( R )

T o u c h P a d

B u t t o n

9 . I n s t a n t

I n t e r n e t

A c c e s s

B u t t o n

1 0 . I n s t a n t

S e a r c h

B u t t o n

1 1 . S c r o l l

u p / d ow n

B u t t o n

1 2 . I n s t a n t

E-

Co m m e r ce

B u t t o n

( o r R e t a il

C e n t e r )

NOTE:Depending onthe model,the icon forthis buttonmay be either

a check markor ashoppingcart.

1 3 . I n s t a n t E - m a i l

1 4 . Po w e r

L ight

1 5 . B a t t e ry

C h a r g e

L ight

1 6 . AC

A d a p t e r

L ight

1 7 . H e a d p h o n e

Jack

1 8 . V o lu m e

D o w n

B u t t o n

1 9 . V o lu m e

Up B u t t o n

2 0 .

M i c r o p h o n e

Jack

2 1 .

N u m b e r

L oc k L ig h t

2 2 . Ca p

L oc k L ig h t

2 3 . S c r o l l

L oc k L ig h t
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Left Side Components

M o d e ls a n d

F e a t u r e s

Co n t r o ls a n d

L i gh t s

L e f t S id e

Co m p o n e n t s

R ig h t S id e

Co m p o n e n t s

B o t t o m o f

Uni t

R e a r

C o n n e c t o r s

P o w e r

Ma n a g e m e n t

f o r W in d o w s

9 8

1 . PC

Card

E jec t

L e v e r

2 . PC

Card

S l o t

3 .

D i s k e t t e

Drive

S l o t

4 .

D i s k e t t e

E jec t

B u t t o n


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Right Side Components

M o d e ls a n d

F e a t u r e s

Co n t r o ls a n d

L igh t s

L e f t S id e

Co m p o n e n t s

R ig h t S i d e

Co m p o n e n t s

B o t t o m o f

U n i t

R e a r

C o n n e c t o r s

P o w e r Ma n a g e m e n t

f o r W in d o w s

9 8

1 . B a t t e ry

Co m p a rt m e n t .

2 . CD D riv e .

3 . CD Dr iv e

Ej e c t B u t t o n .


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Rear Connectors

M o d e ls a n d

F e a t u r e s

Co n t r o ls a n d

L i g h t s

L e f t S id e

Co m p o n e n t s

R i g h t S id e

Co m p o n e n t s

B o t t o m o f

Uni t

R e a r

C o n n e c t o r s

P o w e r

Ma n a g e m e n t

f o r W in d o w s

9 8

1 . A C A d a p t e r .

2 . P a r a lle l

P rin t e r P o r t .

3 . S e r ia l Po r t .

4 . Fa n E x h a u s t .

5 . Ex t e r n a l

M o n it o r P o r t .

6 . U S B .

7 .

Ke y b o a rd / Mo u s eP o r t .

8 . Mo d e m J ac k .

9 . S e c u r it y S lo t .


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Power Management for Windows 98

Th e f o llo w in g p o w e r m a n a g e m e n t f e a t u re s a re a v a ila b le f o r

c o n s e rv in g A C p o w e r a n d e x t e n d in g b a t t e r y o p e r a t in g t im e :

Power Management

Settings

Sleep

Hibernation

Battery Operating

Time

Rebooting After

Lockup

Servicing Your

Computer
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Po w e r Ma n a g e m e n t S e t t in g s

Depending on your patterns of computer use, you can set different levels of

power management. These different power management levels can beactivated based on the amount of time passed since the last system activity.System activity examples include keyboard or mouse movement, CD or DVDplayback (while under program control that monitors Sleep), and modem use.

You can select different conditions or power schemes through PowerManagement.The optional settings are Home/ Office Desk, Portable/Laptop, and Always On. From the default settings, you can change thefollowing settings:

q the System goes to Sleep (Standby) modeq the screen times out and goes blankq the hard drive spins dow n

Each of these system components goes to sleep after the selected or defaultperiods of inactivity.(The setting for hard drive must be less than, or equal to, the setting forSystem.)

IMPORTANT:If you're on a network, it's recommended that you setSystem Standby to Never.

There are five categories of power management settings under the Control Panel.

The default settings for each feature are listed in the follow ing tables:

Po w e r Ma n a g e m e n t Pro p e r t ie s

Tab: Pow er Schemes: Plugged in Running on Batteries

Always on SystemStandby:

Never After 15 minutes

Turn OFF Monitor 3 hours Never

Turn OFF Hard Drive After 15 minutes After 10 minutes


Tab: ALARMS::

Low Battery Alarm: 10%

Critical Battery Alarm 0%

Alarm Actions: X Display MessageNotification:

Text Action: No Action


Tab: POWER METER: Default

Tab: ADVANCED Default(show power meter on taskbar)

D is p la y P ro p e r t ie s

Tab: Monitor:Laptop Display (800 x 600)

Return to Power Management for Windows 98 list.


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Pow er Management for Windows 98S l e e p

You can select Sleep mode instead of turning off the computer when you have finished using it. This allowsthe computer to wake up faster than turning it off and saves power over the active (On) mode. CompaqPresario Notebook computers have two levels of sleepHibernation and Sleep.

Hibernation - pushing the power button once causes your computer to perform a save to disk followed by ashut down of the computer into Off mode.

Sleep - is a low-power mode, also referred to as Standby mode. While in Sleep mode, your computermaintains system information and open files. Unsaved information is lost if you turn off your system beforesystem wake-up, or if you lose power while using the AC adapter.

CAUTION: While in Sleep mode, your computer maintains system information and open files.Unsaved information is lost if you turn off your system before system w ake-up, or if youlose power w hile using the AC adapter.


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H ib e r n a t io n M o d e

Hibernation helps conserve battery life and protect your data. Hibernation can

be a routine power saving event, or can be the result of a low batterycondition. As it enters Hibernation, your computer displays a progress screen,as it automatically saves the machine state before it shuts down and turnsitself off. Your computer automatically goes into Hibernation when thebattery has little power left, or when the system (operating on battery power)has been in Sleep mode for more than an hour. You can also manually initiateHibernation by pressing the power button once while the system is active. Torestore the computer's previous state, simply press the power button once

again. While waking up, the computer displays a progress screen.

The following table shows the conditions and indicators for getting in and outof the various power management modesSleep, Hibernation, and Off.

Mode To Initiate To End Indicators

Sleep Ma n u a l k e y sc o m b in a t io n

- Fn+F4

Press any key Flashing greenPower LED

T im e O u t De f a u lt -15 minutes if on Batterypower (system will nottime out to sleep)

Hibernate M a n u a l - Press PowerButton once Press PowerButton once No PowerLED, blankscreen

T im e O u t De f a u lt -If low battery or after 1hour of sleep (system willnot Hibernate if on AC

power)Off Perform normal Windows

shutdown via the startbutton, or press and holddown the power buttonfor 4 seconds

Press PowerButton once

No PowerLED, blankscreen



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I llustrated Parts Catalog | Removal & Replacement P rocedures|Specifications



R e b o o t in g A f t e r a Lo c k u p

Occasionally you may encounter a frozen keyboard or a locked screen. To

reboot your computer (as if from a cold start), press and hold down the PowerButton for at least four seconds, which will cause a manual shutdown. Then,restart the computer with a single press of the Power Button. If it still doesnot recover, press the Power Button and hold it for four seconds to power offthe computer. Then, remove the battery or unplug the AC power for at least30 seconds. Reinsert the battery or reconnect AC power and press the PowerButton once to reboot.



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S e rv ic in g Y o u r Co m p u t e r - Fu ll O f f Mo d e

If you need to install or replace components in your system, you must turnthe computer offcompletely.Place the computer into Off mode, unplug it from the outlet, and remove the

battery (see battery section for instruction on removing battery).

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Illustrated P arts Catalog | Removal & Replacement Procedures|Specifications


I llustrated Parts Catalog

This section provides a breakdown and identifies the spare parts orderingnumber associated with each item for the Compaq Presario 1200 Series Portable

Computers.

System Unit

Boards

Display Assembly

Mass Storage Devices

Miscellaneous Cable Kit

Cables

Miscellaneous Hardware &

Plastics Kit

Miscellaneous Parts

Documentation & Software
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System Unit

Place cursor over each device to obtain its part number.

S y s t e m Un it

B o a r d s

Display

A s s e m b l y

M a s s S t o r a g e

Dev ice s

M i s c e l l a n e o u s

C ab le K i t

C a b l e s


H a rd w a r e a n d

P las t i c s K i t


P a r t s

D o c u m e n t a t i o n

a n d S o f t w a r e

Keyboards


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Boards

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Ca b le K it

C a b l e s



P l a s t i c s K i t


P a r t s

D o c u m e n t a t io n

a n d S o f t w a re

Pla c e c u rs o r o v e r e a c h d e v ic e t o

o b t a in it s p a r t n u m b e r .

Modem, K-56.0 Kbps Data/Fax w/o SRAM (Domestic) 138659-001


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Display Assembly

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Cab le K it

C a b l e s

M i s c e l l a n e o u s H a rd w a r e a n d



P a r t s

Do c u m e n t a t io n



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Mass Storage Devices

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly

M a s s S t o r a g e D e v i c e s


Ca b le K it

C a b l e s



P la s t i c s K i t


P a r t sD o c u m e n t a t io n


Place cursor over each device to obtain its part number.


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Maintenance & Service GuidePresar io 1200 Series

Model: 1245




Miscellaneous Cables Kit

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Ca b l e K it

C a b l e s


H a r d w a r e a n d

P la s t i c s K it


P a r t s

D o c u m e n t a t i o n


Place cursor over each device for adescription of that item.

Spare Part Number: 330946-001


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Cables

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Cab le K it

C a b l e s





P a r t s



Description Spare Part Number

P o w e r Co r d [FrontPage Save Results Component]

North America 293831-001


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Miscellaneous Hardware and Plastics Kit

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Cab le K it

C a b l e s



P l as t i c s K i t


P a r t s



Miscellaneous Hardware and P lastics KitHa rd w a re S p a re P a rt N u m b e r :

346853-001P la s t ic s K it S p a r e P a rt N u m b e r

142657-001

De s c r ip t io n Q u a n t it y

1. Door, Battery Pack 1 each

2. Cover, Memory Module 1 each

3. Door, PCMCIA 2 each

4. Hinge (Clutch) Cover, Left 1 each

5. Hinge (Clutch) Cover, Right 1 each

6. Rubber Foot 10 each

7. Hard Drive Mounting Bracket 1 each


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Miscellaneous Parts

S y s t e m Un it

B o a r d s

Disp lay A s s e m b ly


D e v i c e s


Cab le K it

C a b l e s





P a r t s



Use the scroll down menu for the description and spare part

number of spare partsN o t S h o w n .

Miscellaneous Parts (not shown):


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Documentation and Software

S y s t e m Un it

B o a r d s

Disp lay

A s s e m b ly


D e v i c e s


Ca b l e K i t

C a b l e s



P la s t i c s K i t

M i s c e l l a n e o u s P a r t s

D o c u m e n t a t io n


Description Spare PartNumber

Reference Guide

US, CanadaFrench CanadaLatin America, MexicoAustralia, New Zealand, Asia,Pacific, United KingdomJapanFrance, BelgiumItalySwedenNetherlands

117894-001

117894-121117894-161

117894-031117894-291117894-051117894-061117894-101117894-331

Quick Restore CD

US, CanadaFrench CanadaLatin America, MexicoAustralia, New Zealand, Asia,PacificUnited KingdomJapanFrance,BelgiumItalySwedenNetherlands

122315-001122315-121122315-161

122315-371122315-031122315-291

122315-051122315-AK1122315-061122315-101122315-331

Feature Guide

US, CanadaFrench CanadaLatin America, MexicoAustralia, New Zealand, Asia,Pacific, United KingdomJapanFrance, BelgiumItalySwedenNetherlands

120231-001120231-121

120231-161

120231-031120231-291120231-051120231-061120231-101120231-331


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Removal and Replacement Procedures

This section explains the removal and replacement procedures for thecomputer.

Serial Number Location

Dis a s s e m b ly

S e q u e n c e

E l e c t r o s t a t i c

D i s c h a r g e

S e r v i c e

C o n s i d e r a t i o n s

Ca b le s a n d

C o n n e c t o r s

Pre p a r in g t h e

Co m p u t e r f o r

Dis a s s e m b ly

B a t t e r y P a c k

Pa lm re s t

Co v e r w it h

T o u c h P a d

H e a t s p r e a d e r

K e y b o a r d

P r o c e s s o r

H a r d D r iv e sCD Driv e

B a t t e r y

Ch a r g e r B o a r d

M o d e m

D is p la y P a n e l

A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D is k e t t e D riv e

Fa n A s s e m b ly

S y s t e m B o a rd

D ip S w it c h

S e t t i n g s

Me m o r y

M o d u l e

Report the computer[ ] serial number to Compaqwhen requesting information or ordering spare parts.


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Electrostatic Discharge

A sudden discharge of static electricityfrom a finger or other conductor candestroy static-sensitive devices or

microcircuitry.

q Often the spark is neither felt nor heard, but damage occurs.An electronic device exposed to an electrostatic discharge

(ESD) may not be affected at all and w ill work perfectlythroughout a normal cycle. Although it may function normallyfor a while, it is possible for the exposed device's internallayers to degrade, reducing its life expectancy considerably.

q Networks built into multiple integrated circuits provide someprotection, but in many cases, the discharge can containenough power to alter device parameters and melt siliconjunctions.

Generating Static

T h is t a b le s h o w s t h e d if fe r e n t e le c t ro s t a t ic v o lt a g e le v e ls g e n e r a t e d

b y v a rio u s a c t iv it ie s .

NOTE: 700 volts can degrade aproduct.

Typical Electrostatic Voltages

Event

Relative Humidity10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V

Walking across vinyl floor 12,000 V 5,000 V 3,000 V

Motions of bench worker 6,000 V 800 V 400 V

Removing DIPS fromplastic tubes

2,000 V 700 V 400 V

Removing DIPS from vinyltrays

11,500 V 4,000 V 2,000 V

Removing DIPS fromStyrofoam

14,500 V 5,000 V 3,500 V

Removing bubble packfrom PCBs

26,000 V 20,000 V 7,000 V

Packing PCBs in foam-linedbox

21,000 V 11,000 V 5,000 V

Return to Removal & Replacement Procedures


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S e rv ic e Co n s id e ra t io n s

Listed below are some of the considerations that you should keep in mind during thedisassembly and re-assembly of the computer.

To o l a n d S o f t w a re R e q u ire m e n t s

To service the computer, you need the following:

q Compaq screwdriver kit (Spare Part No. 161946-001)q Torx T-9 screwdriverq 3/16-inch and 5mm nut drivers (for screwlocks and standoffs)q Small, standard screwdriverq Small, Phillips screwdriverq Diagnostics software

S c re w s

The screws used in the computer are not interchangeable. If an incorrect screw is used during thereassembly process it can damage the unit.

Compaq strongly recommends that each screw removed during disassembly be kept with the partfrom which it was removed, then returned to the original location.

IMPORTANT:As each subassembly is removed from the computer, it should be placed awayfrom the work area to prevent damage.

R e t u r n t o R e m o v a l & R e p la c e m e n t P ro c e d u r e s


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Ca b l e s a n d Co n n e c t o rs

Most cables used throughout the units are ribbon cables; they must be handled w ithextreme care to avoid damage.

Us e t h e f o llo w in g p re c a u t io n s w h e n h a n d l in g c a b le s t o p r e v e n t d a m a g e t o t h e c a b le o r

c o m p u t e r :

q Apply only the required tension to seat or unseat the cables during insertion and removal

from the connector.

q Handle cables by the connector whenever possible.

q In all cases, avoid bending, twisting, or tearing the cables, and ensure that the cables arerouted in such a way that they cannot be caught or snagged by parts being removed orreplaced. Handle flex cables with extreme care; they can tear easily.

CAUTION:When servicing these computers, ensure that cables are placed in theirproper location during the reassembly process. Improper cable placement can causesevere damage to the unit.

S e le c t t h e d e s ire d i llu s t r a t io n .

q Removing a Cable from a ZIF Connector.

q The ribbon cable position for the 3.2-GB, 4.0-GB, 4.3-GB, and 6.4-GB hard drive .

q The ribbon cable position for the CD drive.

q The ribbon cable position for the diskette drive.

q The cable position for thespeaker assembly.

P la s t i c P a r t s

Plastic parts can be damaged if excessive force is used during disassembly and reassembly. Whenhandling the plastic parts, use care. Apply pressure only at the points designated in themaintenance instructions.

http://h18000.www1.hp.com/copyright.htmlhttp://h18000.www1.hp.com/copyright.htmlhttp://h18000.www1.hp.com/comments.html?http://h18000.www1.hp.com/athome/support/msgs/1245/cables1.htmlhttp://h18000.www1.hp.com/index.htmlhttp://h18000.www1.hp.com/worldwide/index.htmlhttp://h18000.www1.hp.com/services/index.htmlhttp://h18000.www1.hp.com/showroom/index.htmlhttp://h18000.www1.hp.com/search.htmlhttp://h18000.www1.hp.com/index.html


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Model: 1245




Z I F Co n n e c t o r s

The computer uses a zero insertion force(ZIF) connector for the keyboard cable to thesystem board. To remove a cable from a ZIFconnector, lift both corners of the ZIFconnector and slide simultaneously withconstant light force.

CAUTION:A ZIF connector andits attached cable can be easilydamaged. Handle only theconnector slide when removingor replacing a cable. Never pullor twist on the cable while it isconnected.

CAUTION:When servicing thiscomputer, ensure that cablesare placed in their properlocation during the reassemblyprocess. Improper cableplacement can damage thecomputer.

Back to Cables and Connectors.


32/95


Model: 1245




The ribbon cable position for the 3.2-GB hard drive.



33/95


Model: 1245


Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations

The ribbon cable position for the CD drive.



34/95


Model: 1245




The ribbon cable position for the diskette drive.



35/95


Model: 1245




The cable position for the speaker assembly.



36/95


Model: 1245




Preparing the Computer for Disassembly E l e c t ro s ta t i c

D i sc harge

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s

P re p a r in g t h e


D is a s s e m b l y


P a lm r e s t Co v e r

w it h T o u c h P a d


K e y b o a r d

P r o c e s s o r

Ha rd Dr iv e s

CD Drive

B a t t e r y C h a r g e r Board

M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D is k e t t e D r iv e

Fa n A s s e m b ly

S y s t e m B o ard

D ip S w it c h

S e t t i n g s

M e m o r y M o d u l e

B e f o re b e g in n in g re m o v a l a n d r e p la c e m e n t

p r o c e d u r e s ,

c o m p le t e t h e f o llo w in g p ro c e d u re s :

1. Disconnect AC power and any external devices.

2. Remove the battery pack.

3. Remove any PC Cards.

WARNING: Metal objects can damage the battery pack as well as the batterycontacts in the battery compartment. To prevent damage, do not allow metalobjects to touch the battery contacts. Place only the battery pack for theCompaq Presario Model 1245 Portable Computer into the battery compartment.Do not force the battery pack into the bay if insertion does not occur easily.

CAUTION:Do not crush, puncture, or incinerate the battery pack. Do not open a

battery pack, as this damages the pack, makes it unusable, and exposespotentially harmful battery components. There are no field-serviceable partslocated inside the battery pack.

NOTE:

The Compaq Presario Model 1245 Portable Computer has several screws ofvarious sizes which are not interchangeable. Care must be taken duringreassembly to ensure that the correct screws are used in their correct location.During removal please keep respective screws with their associated sub-assembly.

Return to Removal & Replacement Procedures.


37/95


Model: 1245




Removing the Battery Pack

E l ec t r o s t a t i c

D i s ch a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s



D is a s s e m b ly


Pa lm re s t

Co v e r w it h T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a rd D r iv e s

CD Driv e

B a t t e r y Ch a r g e r B o a r d

M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s


To removethe batterypack,completethefollowingsteps:

1. Slide thebattery pack

compartmentdoor downand removeit from thebattery pack.

Next Step


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Model: 1245




2. Pull forward on the

battery pack taband remove the

battery pack fromthe chassis.

To replace the batterypack, reverse theprevious procedures.

Return to Removal &

Replacement

Procedures


39/95


Model: 1245




Removing the Palmrest Cover w ith Touch Pad


D i s c h a r g e

S e r v i c e


Ca b le s a n d

C o n n e c t o r s


Co m p u t e r fo r

D is a s s e m b ly

B a t t e r y Pa c k

P alm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a r d D r iv e s

CD Dr iv e

B a t t e r y


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D is k e t t e D riv eFa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

The palmrestcover with touchpad must beremoved to gainaccess to any ofthe interiorcomponents of thecomputer, and it isthe firstcomponent thathas to be removedto gain access tothe interiorcomponents.

NOTE:

It is notnecessaryto removethe displaypanelassembly toaccess theinteriorcomponentsof the

computer.

To remove thepalmrest coverwith touch pad,complete thefollowing steps:

1. Prepare the

computer for

disassembly.

2. Close thecomputer and turnthe computerupside down.

3. Remove fourscrews from the

bottom of thecomputer.

Next Step


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Model: 1245




4. Turn the computerover (right side up),pull forward on thedisplay latches to

release and open thedisplay assembly.

5. Lift up front end ofthe palmrest cover withtouch pad and removeit from the groove inthe chassis.

6. Tilt the palmrestcover with touch pad,allowing it to rest ontop of the keyboard,and disconnect the flexcable from the ZIFconnector on thepalmrest cover.

CAUTION:Whenreplacing thepalmrest coverwith touch pad,ensure that thecable is fullyinserted into the

ZIF connector onthe system board.If the metal endcomes in contactwith thekeyboard, damagemay occur to thecomputer.

To replace the palmrestcover with touch pad,reverse the previousprocedures.

NOTE:

When replacingthe palmrestcover, ensure

that the cable isproperly routedthrough the sloton the UpperCPU cover.

Return toRemoval &

Replacement

Procedures


41/95


Model: 1245




Removing the Heatspreader


D i s ch a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s



D is a s s e m b ly


Pa lm re s t



K e y b o a r d

P r o c e s s o r

H a rd D r iv e s

CD Driv e


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s


To removetheheatspreader,complete thefollowing

steps:

1. Prepare

the computer

for

disassembly.

2. Removethe palmrest

cover with

touch pad.

3. RemoveKeyboard.

4. Removetwo screws

from theheatspreaderand lift out ofthe chassis.

To replacetheheatspeader,reverse thepreviousprocedures.


42/95


Model: 1245




Removing the Keyboard


D i sc harge

S e r v i c e


Ca b le s a n d

C o n n e c t o r s


Co m p u t e r fo r

Dis a s s e m b ly


P alm re s t Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

Hard Dr iv e s

CD Driv e B a t t e r y


M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly

S y s t e m B o ard

D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To remove thekeyboard,complete thefollowingsteps:

1. Prepare the

computer for

disassembly.


cover with

touch pad.

3. Turn thekeyboardover, andallow it to reston top of thepalmrestcover withtouchpad slot

opening.

4. Removetheheatspreader .

5. Disconnectthe flex cablefrom the ZIF

connector onthe systemboard.

To replace thekeyboard,reverse thepreviousprocedures.

Return to

Removal &

Replacement

Procedures


43/95


Model: 1245




Removing the Processor


D i s c h a r g e

S e r v i c e

C o n s i d e r a t i o n

Ca b l e s a n d

C o n n e c t o r s


Co m p u t e r fo r

D is a s s e m b ly


P a lm re s t Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a rd D r i v e s

CD Driv e

B a t t e r y

C h a r g e r

B o a rd

M o d e m

D is p l a y P a n e l

A s s e m b ly

U p p e r CP U C o v e r

S p e a k e r

A s s e m b ly

D i s k e t t e

Drive

Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To removetheprocessor,complete thefollowingsteps:

1. Prepare

the computer

for

disassembly.

2. Removepalmrest

cover with

touch pad.

3. Removetheheatspreader.

4. Removethe keyboard.

5. Insert asmall-bladescrewdriverinto thebottom slot

opening onthe processorand pushtoward thedisplay torelease theprocessorfrom thechassis slot.

6. Lift theprocessor outof theprocessorchassis slot.

Next Step


44/95


Model: 1245




To replace the processor complete the followingsteps:

1.Insert the processor into the slot on the system board.

NOTE:The notch on the left corner of the processor serves as an orientationindicator. Align the notch on the left corner of the processor with the notchon the left corner of the processor chassis slot.

NOTE:

When installing the processor into the chassis slot, be surethat the hole pattern on the chassis slot lines up with thepins on the processor. The processor should drop into thesocket without any force.

2. Insert a small blade screw driver into the top slot opening on theprocessor and push it away from the display to lock the processor.

3. Verify the switch settings.

Return toRemoval & Replacement Procedures


45/95


Mode l: 1245




CAUTION: When replacing the system board, ensure the dip switch voltage settings on the system boardare correct for the computer model and processor voltage marked on the processor chip. If the system boarddip switch voltage settings are not correct, damage may occur to the computer and/or system board.

NOTE: The b la c k a r e a o n t h e d ip s w it c h indicates the position of the switch.



46/95


Model: 1245




Removing the Hard Drive


D i s c h a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s



Dis a s s e m b ly


Pa lm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a rd D r iv e s

CD Driv e

B a t t e r y

C h a r g e r

Board

M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D i s k e t t e

Drive

Fa n A s s e m b ly

S y s t e m

Board

D ip S w it c h

S e t t i n g s

M e m o r y

Mo d u l e

To removethe hard

drive,completethe followingsteps:

1. Preparethecomputer

for

disassembly.


cover with

touch pad.

3. Removethe

keyboard.

4. Removetwo screwsfrom thehard drivemountingbracket andlift up the

hard drive.

Next Step


47/95


Models: 1245




5. Disconnect the harddrive data cable from

the hard drive andremove from thechassis.

Next Step


48/95


Model: 1245




To remove the harddrive mountingbracket, remove fourscrews from themounting bracket asshown in theillustration.

To replace thehard

drive and hard drivemounting bracket,reverse the previous

procedures.

Return toRemoval &

Replacement

Procedures


49/95


Model: 1245




Removing the CD Drive


D i s c h a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s



Dis a s s e m b ly


Pa lm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H ar d D r iv e s

CD Driv e B a t t e r y

C h a r g e r

Board

M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D i s k e t t e

Drive

Fa n A s s e m b ly

S y s t e m

Board

D ip S w it c h

S e t t i n g s

Me m o r y

M odu l e

To removethe CD drive,complete thefollowing

steps:

1. Preparethe computer

for

disassembly.


cover with

touch pad.



5. Removethe twoscrewslocated at theback of theCD drive.

Next Step


50/95


Model: 1245




6. Remove the two screws on thebottom of the unit that secure the CDbracket to the system board.

Next Step
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51/95


Model: 1245




7. Disconnect the CDdrive cable from theCD drive and removethe CD drive from thechassis.

To replace the CDdrive, reverse theprevious procedures.

Return to Removal &

Replacement

Procedures


52/95


Mode l: 1245




Removing the Battery Charger Board


D i s ch a r g e

S e r v i c e


Ca b le s a n d

C o n n e c t o r s


Co m p u t e r fo r

Dis a s s e m b ly


P alm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a r d D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly

S y s t e m B o ard

D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To remove thebattery chargerboard, completethe followingsteps:

1. Prepare thecomputer for

disassembly.

2. Remove thepalmrest cover

with touch pad.

3. Remove thehard drive.

4. Remove onescrew from thebattery chargerboard, unplugthe board fromthe connectoron the system

board, and liftthe batterycharger boardout of thechassis.

To replace thebattery chargerboard, reverse

the previousprocedures.

NOTE:

Whenreplacingthebatterychargerboard,ensure

that thepins arealignedwith theconnectoron thesystemboard.


53/95


Model: 1245




Removing the Modem


D i s c h a r g e

S e r v i c e


Ca b l e s a n d C o n n e c t o r s



Dis a s s e m b l y


P a lm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a r d D r iv e s

CD Driv e


M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To removethe modem,complete thefollowingsteps:


for

disassembly.


cover with

touch pad.



5. Removetwo screwssecuringmodem andpull themodem offthe connectoron thesystem

board.

Next Step


54/95


Model: 1245




6. Disconnect themodem cable from themodem.

To replace the modem,reverse the previousprocedures.

Return to Removal &

Replacement

Procedures


55/95


Model: 1245




Removing the Display Panel Assembly


D i s c h a r g e

S e r v i c e


Ca b le s a n d

C o n n e c t o r s



D is a s s e m b l y


P a lm r e s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a r d D r iv e s

CD Drive

B a t t e r y


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To remove the displaypanel assembly,complete thefollowing steps:

1. Prepare the

computer fordisassembly.

2. Remove thepalmrest cover with

touch pad.

3. Remove theheatspreader.

4. Remove thekeyboard.

5. Remove themodem.

6. Pull up the hingecovers and lift thecovers off the chassis.

IMPORTANT:

Carefullyremovethedisplaypanelassemblyhingecovers.

Next Step


56/95


Model: 1245




7. Disconnect the flexcable attached to thedisplay panel assemblyfrom the ZIF connectoron the system board.

Next Step


57/95


Model: 1245




8. Disconnect thebacklight cable attachedto the display panelassembly from the

connector on thesystem board.

Next Step


58/95


Model: 1245




9. Support the backof the display panel

assembly and removetwo screws from eachof the display panelhinges.

Next Step


59/95


Model: 1245




10. Gently pull the flexcable attached to thedisplay panel assemblythrough the slot on the

Upper CPU cover andremove the displaypanel assembly withflex and backlight cableattached.

To replace the displaypanel assembly, reversethe previous

procedures.

NOTE:

When removingthe display panelassembly,observe thedisplay panelassembly flex

cable routing andposition.

Return to Removal &

Replacement

Procedures


60/95


Model: 1245




Removing the Upper CPU Cover


D i s c h a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s



Dis a s s e m b ly


P a lm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a r d D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

Up p e r CP U C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h S e t t i n g s

M e m o r y

M o d u l e

To removethe UpperCPU covercomplete thefollowing

steps:


for

disassembly.


cover with

touch pad.


4. Remove

the keyboard.

5. Removethe hard

drive.

6. Removethe display

panel

assembly.

7. Removethe screwlocated underthe bottom ofthe unit(rear) whichsecures the

Upper CPUcover to thechassis andremove fourscrewslocated onthe top.

8. Lift theUpper CPUcover off thesnaps on thechassis. Thisdisconnectsthe powerswitch fromthe connectoron thesystem

board.

To replacethe UpperCPU cover,reverse thepreviousprocedures.


61/95


Model: 1245




Removing the Speaker Assembly


D i s c h a r g e

S e r v i c e


Ca b le s a n d

C o n n e c t o r s


Co m p u t e r fo r

D is a s s e m b ly


Pa lm re s t



K e y b o a r d

P r o c e s s o r

H ar d D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M odu l e

To removethe speakerassembly,complete the

followingsteps:


for

disassembly.

2. Remove

the palmrestcover with

touch pad.



5. Removethe hard

drive.


panelassembly.

7. Removethe Upper

CPU cover.

8. Removethe battery

charger

board.

9. Disconnectthe speakercables fromthe systemboard andremove thespeakerassemblyfrom thechassis.

To replacethe speakerassembly,reverse the

previousprocedures.


62/95


Model: 1245




Removing the Diskette Drive


D i sc harge

S e r v i c e


Ca b le s a n d

C o n n e c t o r s


Co m p u t e r fo r Dis a s s e m b ly


P alm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d P r o c e s s o r

Hard Dr iv e s

CD Driv e

B a t t e r y

C h a r g e r

Board

M o d e mD is p la y P a n e l

A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly

D i s k e t t e

Drive

Fa n A s s e m b ly

S y s t e m

Board

D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To remove thediskette drive,complete thefollowing steps:

1. Prepare thecomputer for

disassembly.

2. Remove thepalmrest cover

with touch pad.

3. Remove the

heatspreader.

4. Remove thekeyboard.

5. Remove thehard drive.

6. Remove the

display panelassembly.

7. Remove theUpper CPU

cover.

8. Removebattery charger

board.

9. Remove thediskette drive.

Next Step

NOTE:

Whenreplacingthediskettedrive,ensurethat thediskettedrive

ejectlever isproperlyinsertedin thechassisslot.


63/95


Model: 1245




10. Disconnect thediskette drive datacable from the systemboard.

To replace thediskette

drive, reverse theprevious procedures.

Return to Removal &

Replacement

Procedures


64/95


Model: 1245




Removing the Fan Assembly


D i s ch a r g e

S e r v i c e


Ca b le s a n d

C o n n e c t o r s



D is a s s e m b lyB a t t e r y P a c k

P alm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r

H a rd D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To removethe fanassembly,complete thefollowingsteps:


for

disassembly.

2. Remove

the palmrestcover with

touch pad.


4. Remove

the keyboard.


panel

assembly.

6. Removethe hard

drive.

7. Removethe Upper

CPU cover.

8. Lift the fanassemblyfrom the

chassis slotanddisconnectthe fan cablefrom theconnector onthe systemboard.

Next Step


65/95


Model: 1245




To remove the fan gasket, complete the following step:

Pull the gasket from the fan.

To replace the fan assembly, reverse the previous procedure.

NOTE:When replacing the fan, ensure that the fan isblowing into the computer. (The vendor label on thefan should be facing in, toward the processor).

NOTE:To replace the fan with gasket attached, place the fanassembly at a 15 angle and push forward.



66/95


Model: 1245




Removing the System Board


D i s c h a r g e

S e r v i c e C o n s i d e r a t i o n s

Ca b le s a n d

C o n n e c t o r s

Pre p a r in g t h e


Dis a s s e m b ly


Pa lm re s t

Co v e r w it h

T o u c h P a d


K e y b o a r d

P r o c e s s o r H a r d D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

Up p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

Me m o r y

M o d u l e

To remove the system board, completethe following steps:

1. Prepare the computer for

disassembly.

2. Remove the palmrest cover with

touch pad.

3. Remove the heatspreader.

4. Remove the keyboard.

5. Remove the processor.

6. Remove the modem.

7. Remove the hard drive.

8. Remove the display panel assembly.

9. Remove the Upper CPU Cover.

10. Remove the battery charger board.

11. Remove the diskette drive.

12. Remove the CD drive.

13. Remove the fan.

14. Disconnect the speaker assemblycables.

Next Step


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15. Remove threestandoffs from thesystem board.

Next Step


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I llustrated Parts Catalog | Removal & Replacement P rocedures|Specifications


16. Remove two screwsfrom the CD Drivemounting rails andremove the mounting

rails from the systemboard.

Next Step


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17. Remove threescrews from the systemboard.

Next Step


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18. Pull the PCMCIA eject lever out (straight), liftup the right side of the system board and pullforward to remove the system board from thechassis.

To replace the system board, reverse theprevious procedures.

IMPORTANT:Remove all cables from the system

board.

Dip Switch System Board Settings

Return to Removal & Replacement

Procedures


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Removing the Memory Module


D i s c h a r g e

S e r v i c e


Ca b l e s a n d

C o n n e c t o r s


Co m p u t e r fo r

D is a s s e m b ly


P a lm re s t



K e y b o a r d

P r o c e s s o r

H a rd D r iv e s

CD Driv e

B a t t e r y


M o d e m


A s s e m b ly

U p p e r CP U

C o v e r

S p e a k e r

A s s e m b ly


Fa n A s s e m b ly


D ip S w it c h

S e t t i n g s

M e m o r y

M o d u l e

To removethe memorymodule,completethe followingsteps:

1. Preparethecomputer

for

disassembly.

2. Close thecomputerand turn thecomputerupsidedown.

3. Removethe screwfrom thememorymoduledoor, andslide thememorymodule doorto the right.

Next Step


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4. Pull side levers torelease the memory

module and unplug thememory module fromthe system board.

To replace the memorymodule, reverse theprevious procedures.

Return to Removal &

Replacement

Procedures


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Specifications

T h is c h a p t e r co v e rs t h e f o llo w in g s p e c if ic a t io n s f o r t h e M o d e l 1 2 4 5 P o r t a b le

Co m p u t e r :

System interrupts

System DMA

System I/O Address

System memory Catalog

Physical & environmental

Display

Memory Expansion

Battery Pack

Diskette Drive

Hard Drive

CD Drive

Ph y s ic a l a n d En v iro n m e n t a l

Computer Specifications

U.S. Metric

Dimensions

HeightDepthWidth

1.97 in12.20 in10.08 in

4.95 cm31.00 cm25.60 cm

Weight 6.88 lb 3.34 kg

Stand-Alone (Battery Pack) PowerRequirements

Nominal OperatingMaximum Average

Peak Operating

NiMH

W @ 9.6 VW @ 9.6 VW @ 9.6 V

AC Power Requirements

Operating VoltageOperating Current

Operating Frequency

Maximum Transient

100-240 V0.8/0.4 A RMS

47-63 HzMeets IEC 801-4 and IEC801-5

1kV for 50 ns

Operating Temperature 50 to 95 F 10 to 35 C

Non-operating Temperature -4 to 140 F -20 to 60 C

Operating Relative Humidity (non-condensing)

10 to 90% 35C to 90%

Non-operating Relative Humidity(tw = 38.7C max)

5 to 95% 60C to 95%

Operating Altitude 0 to 10,000 ft 0 to 3.15 km

Non-operating Altitude 0 to 30,000 ft 0 to 9.14 kmOperating Shock 10 G, 11 ms, half sine

Non operating Shock 240 G, 2 ms, half sine

Operating Vibration 0.5 G

Non-operating Vibration 1.5 G

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. TheCompaq Presario Model 1245 Portable Computer operates well within this range oftemperatures.

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Specifications

S y s t e m I n t e r ru p t s

System Interrupts

Hardware

IRQ

System Function

IRQ00 Timer Interrupt

IRQ01 Standard 101/102-Key or MicrosoftNatural Keyboard

IRQ02 Programmable interrupt controller

IRQ03 Compaq Presario 56K-DF

IRQ04 Communications Port (COM1)

IRQ05 ES1869 Plug and Play AudioDriveIRQ06 Standard Floppy Disk Controller

IRQ07 Printer Port (LPT1)

IRQ08 System CMOS/real time clock

IRQ09 (free)

IRQ10 OPTi 82C861 PCI to USB Open HostController

IRQ11 IRQ Holder for PCI Steering

IRQ11 NeoMagic MagicGraph 128XD

IRQ12 Synaptics PS/2 TouchPad

IRQ13 Numeric data processor

IRQ14 Primary IDE controller (dual fifo)

IRQ14 Op

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