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LCD TVSERVICE MANUAL

CAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LP91A

MODEL : 26LH20R 26LH20R-MA

North/Latin America http://aic.lgservice.comEurope/Africa http://eic.lgservice.comAsia/Oceania http://biz.lgservice.com

Internal Use Only

Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes

LGE Internal Use Only- 2 -

CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ........................................................................................6

ADJUSTMENT INSTRUCTION................................................................11

TROUBLE SHOOTING ............................................................................16

BLOCK DIAGRAM...................................................................................19

EXPLODED VIEW .................................................................................. 20

SVC. SHEET ...............................................................................................



SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Exploded View.It is essential that these special safety parts should be replaced with the same components as recommended in this manual to preventShock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during theservicing of a receiver whose chassis is not isolated from the ACpower line. Use a transformer of adequate power rating as thisprotects the technician from accidents resulting in personal injuryfrom electrical shocks.

It will also protect the receiver and it's components from beingdamaged by accidental shorts of the circuitry that may beinadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown,replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor,over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposedmetallic parts of the cabinet, such as antennas, terminals, etc., tobe sure the set is safe to operate without damage of electricalshock.

Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connect anelectrical jumper across the two AC plug prongs. Place the ACswitch in the on position, connect one lead of ohm-meter to the ACplug prongs tied together and touch other ohm-meter lead in turn toeach exposed metallic parts such as antenna terminals, phonejacks, etc. If the exposed metallic part has a return path to the chassis, themeasured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis thereading must be infinite.An other abnormality exists that must be corrected before thereceiver is returned to the customer.

Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitorbetween a known good earth ground (Water Pipe, Conduit, etc.)and the exposed metallic parts.Measure the AC voltage across the resistor using AC voltmeterwith 1000 ohms/volt or more sensitivity.Reverse plug the AC cord into the AC outlet and repeat AC voltagemeasurements for each exposed metallic part. Any voltagemeasured must not exceed 0.75 volt RMS which is corresponds to0.5mA.In case any measurement is out of the limits specified, there ispossibility of shock hazard and the set must be checked andrepaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument’sexposed METALLIC PARTS

Good Earth Groundsuch as WATER PIPE,CONDUIT etc.

AC Volt-meter

When 25A is impressed between Earth and 2nd Groundfor 1 second, Resistance must be less than 0.1*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15uF

Ω



CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow theSAFETY PRECAUTIONS on page 3 of this publication.NOTE: If unforeseen circumstances create conflict between thefollowing servicing precautions and any of the safety precautions onpage 3 of this publication, always follow the safety precautions.Remember: Safety First.

General Servicing Precautions1. Always unplug the receiver AC power cord from the AC power

source before;a. Removing or reinstalling any component, circuit board

module or any other receiver assembly.b. Disconnecting or reconnecting any receiver electrical plug or

other electrical connection.c. Connecting a test substitute in parallel with an electrolytic

capacitor in the receiver.CAUTION: A wrong part substitution or incorrect polarityinstallation of electrolytic capacitors may result in anexplosion hazard.

2. Test high voltage only by measuring it with an appropriate highvoltage meter or other voltage measuring device (DVM,FETVOM, etc) equipped with a suitable high voltage probe.Do not test high voltage by "drawing an arc".

3. Do not spray chemicals on or near this receiver or any of itsassemblies.

4. Unless specified otherwise in this service manual, cleanelectrical contacts only by applying the following mixture to thecontacts with a pipe cleaner, cotton-tipped stick or comparablenon-abrasive applicator; 10% (by volume) Acetone and 90% (byvolume) isopropyl alcohol (90%-99% strength)CAUTION: This is a flammable mixture.Unless specified otherwise in this service manual, lubrication ofcontacts in not required.

5. Do not defeat any plug/socket B+ voltage interlocks with whichreceivers covered by this service manual might be equipped.

6. Do not apply AC power to this instrument and/or any of itselectrical assemblies unless all solid-state device heat sinks arecorrectly installed.

7. Always connect the test receiver ground lead to the receiverchassis ground before connecting the test receiver positivelead.Always remove the test receiver ground lead last.

8. Use with this receiver only the test fixtures specified in thisservice manual.CAUTION: Do not connect the test fixture ground strap to anyheat sink in this receiver.

Electrostatically Sensitive (ES) DevicesSome semiconductor (solid-state) devices can be damaged easilyby static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ESdevices are integrated circuits and some field-effect transistors andsemiconductor "chip" components. The following techniquesshould be used to help reduce the incidence of componentdamage caused by static by static electricity.1. Immediately before handling any semiconductor component or

semiconductor-equipped assembly, drain off any electrostaticcharge on your body by touching a known earth ground.Alternatively, obtain and wear a commercially availabledischarging wrist strap device, which should be removed toprevent potential shock reasons prior to applying power to the

unit under test.2. After removing an electrical assembly equipped with ES

devices, place the assembly on a conductive surface such asaluminum foil, to prevent electrostatic charge buildup orexposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESdevices.

4. Use only an anti-static type solder removal device. Some solderremoval devices not classified as "anti-static" can generateelectrical charges sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generateelectrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protectivepackage until immediately before you are ready to install it.(Most replacement ES devices are packaged with leadselectrically shorted together by conductive foam, aluminum foilor comparable conductive material).

7. Immediately before removing the protective material from theleads of a replacement ES device, touch the protective materialto the chassis or circuit assembly into which the device will beinstalled.CAUTION: Be sure no power is applied to the chassis or circuit,and observe all other safety precautions.

8. Minimize bodily motions when handling unpackagedreplacement ES devices. (Otherwise harmless motion such asthe brushing together of your clothes fabric or the lifting of yourfoot from a carpeted floor can generate static electricitysufficient to damage an ES device.)

General Soldering Guidelines1. Use a grounded-tip, low-wattage soldering iron and appropriate

tip size and shape that will maintain tip temperature within therange or 500°F to 600°F.

2. Use an appropriate gauge of RMA resin-core solder composedof 60 parts tin/40 parts lead.

3. Keep the soldering iron tip clean and well tinned.4. Thoroughly clean the surfaces to be soldered. Use a mall wire-

bristle (0.5 inch, or 1.25cm) brush with a metal handle.Do not use freon-propelled spray-on cleaners.

5. Use the following unsoldering techniquea. Allow the soldering iron tip to reach normal temperature.

(500°F to 600°F)b. Heat the component lead until the solder melts.c. Quickly draw the melted solder with an anti-static, suction-

type solder removal device or with solder braid.CAUTION: Work quickly to avoid overheating the circuitboard printed foil.

6. Use the following soldering technique.a. Allow the soldering iron tip to reach a normal temperature

(500°F to 600°F)b. First, hold the soldering iron tip and solder the strand against

the component lead until the solder melts.c. Quickly move the soldering iron tip to the junction of the

component lead and the printed circuit foil, and hold it thereonly until the solder flows onto and around both thecomponent lead and the foil.CAUTION: Work quickly to avoid overheating the circuitboard printed foil.

d. Closely inspect the solder area and remove any excess orsplashed solder with a small wire-bristle brush.

SERVICING PRECAUTIONS



IC Remove/ReplacementSome chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against thecircuit foil. When holes are the slotted type, the following techniqueshould be used to remove and replace the IC. When working withboards using the familiar round hole, use the standard techniqueas outlined in paragraphs 5 and 6 above.

Removal1. Desolder and straighten each IC lead in one operation by gently

prying up on the lead with the soldering iron tip as the soldermelts.

2. Draw away the melted solder with an anti-static suction-typesolder removal device (or with solder braid) before removing theIC.

Replacement1. Carefully insert the replacement IC in the circuit board.2. Carefully bend each IC lead against the circuit foil pad and

solder it.3. Clean the soldered areas with a small wire-bristle brush.

(It is not necessary to reapply acrylic coating to the areas).

"Small-Signal" Discrete TransistorRemoval/Replacement1. Remove the defective transistor by clipping its leads as close as

possible to the component body.2. Bend into a "U" shape the end of each of three leads remaining

on the circuit board.3. Bend into a "U" shape the replacement transistor leads.4. Connect the replacement transistor leads to the corresponding

leads extending from the circuit board and crimp the "U" withlong nose pliers to insure metal to metal contact then soldereach connection.

Power Output, Transistor DeviceRemoval/Replacement1. Heat and remove all solder from around the transistor leads.2. Remove the heat sink mounting screw (if so equipped).3. Carefully remove the transistor from the heat sink of the circuit

board.4. Insert new transistor in the circuit board.5. Solder each transistor lead, and clip off excess lead.6. Replace heat sink.

Diode Removal/Replacement1. Remove defective diode by clipping its leads as close as

possible to diode body.2. Bend the two remaining leads perpendicular y to the circuit

board.3. Observing diode polarity, wrap each lead of the new diode

around the corresponding lead on the circuit board.4. Securely crimp each connection and solder it.5. Inspect (on the circuit board copper side) the solder joints of

the two "original" leads. If they are not shiny, reheat them and ifnecessary, apply additional solder.

Fuse and Conventional ResistorRemoval/Replacement1. Clip each fuse or resistor lead at top of the circuit board hollow

stake.2. Securely crimp the leads of replacement component around

notch at stake top.3. Solder the connections.

CAUTION: Maintain original spacing between the replacedcomponent and adjacent components and the circuit board toprevent excessive component temperatures.

Circuit Board Foil RepairExcessive heat applied to the copper foil of any printed circuitboard will weaken the adhesive that bonds the foil to the circuitboard causing the foil to separate from or "lift-off" the board. Thefollowing guidelines and procedures should be followed wheneverthis condition is encountered.

At IC ConnectionsTo repair a defective copper pattern at IC connections use thefollowing procedure to install a jumper wire on the copper patternside of the circuit board. (Use this technique only on ICconnections).

1. Carefully remove the damaged copper pattern with a sharpknife. (Remove only as much copper as absolutely necessary).

2. carefully scratch away the solder resist and acrylic coating (ifused) from the end of the remaining copper pattern.

3. Bend a small "U" in one end of a small gauge jumper wire andcarefully crimp it around the IC pin. Solder the IC connection.

4. Route the jumper wire along the path of the out-away copperpattern and let it overlap the previously scraped end of the goodcopper pattern. Solder the overlapped area and clip off anyexcess jumper wire.

At Other ConnectionsUse the following technique to repair the defective copper patternat connections other than IC Pins. This technique involves theinstallation of a jumper wire on the component side of the circuitboard.

1. Remove the defective copper pattern with a sharp knife.Remove at least 1/4 inch of copper, to ensure that a hazardouscondition will not exist if the jumper wire opens.

2. Trace along the copper pattern from both sides of the patternbreak and locate the nearest component that is directlyconnected to the affected copper pattern.

3. Connect insulated 20-gauge jumper wire from the lead of thenearest component on one side of the pattern break to the leadof the nearest component on the other side.Carefully crimp and solder the connections.CAUTION: Be sure the insulated jumper wire is dressed so theit does not touch components or sharp edges.



SPECIFICATIONNOTE : Specifications and others are subject to change without notice for improvement.

4. Electrical specification4.1 General Specification

1. Application rangeThis spec sheet is applied to LCD TV used LP91A chassis.

2. SpecificationEach part is tested as below without special appointment.

1) Temperature : 25±5ºC (77±9ºF), CST : 40±5ºC2) Relative Humidity : 65±10%3) Power Voltage : Standard input voltage(100~240V@50/60Hz)

* Standard Voltage of each products is marked by models.4) Specification and performance of each parts are followed

each drawing and specif ication by part number inaccordance with BOM.

5) The receiver must be operated for about 5 minutes prior tothe adjustment.

3. Test method1) Performance: LGE TV test method followed 2) Demanded other specification

- Safety: CE, IEC specification- EMC : CE, IEC

No Item Specification Measurement Remark

1 Screen Size 26” wide Color Display Module Resolution: 1366*768

2 Aspect Ratio 16:9

3 LCD Module 26” TFT WXGA LCD HD

4 Operating Environment Temp.: 0 ~ 40 deg

Humidity : 0 ~ 80 %

5 Storage Environment Temp.: -20 ~ 60 deg

Humidity : 0~ 85 %

6 Input Voltage AC100-240V~, 50/60Hz

≤ 120 W 26” HD

7 LDC Module HD 626 x 373 x 44.1 with inverter

(Maker : LGD) 0.1405 x 0.4215

12 EEFL

Coating 3H


No. Item Min. Typ. Max. Unit Maker Remark

1. Luminance 360 450 cd/m2

(W/O PC mode)

2. VIew angle (R/L, U/D) 178/ 178 degree LGD CR > 10

3. Color Coordinates White Wx Typ 0.279 Typ LGD 26”(HD)

Wy -0.03 0.292 +0.03 LC260WXN-SBA1

RED Xr 0.637

Yr 0.333

Green Xg 0.290

Yg 0.607

Blue Xb 0.145

Yb 0.061

4. Contrast ratio 700:1 1000:1 LGD 26”(HD)

5. Luminance Variation 1.3

- 7 - LGE Internal Use Only

5. Chroma& Brightness (Optical)5.1. LCD Module

the Color Coordinates check condition - 50cm from the surface, Full White Pattern- Picture mode Vivid

8. Component Video Input (Y, PB, PR)

NoSpecification

RemarkResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1 720* 480 15.73 59.94 13.500 SDTV, DVD 480I( 525I)

2 720* 480 15.75 60.00 13.514 SDTV, DVD 480I( 525I)

3 720* 576 15.625 50.00 13.500 SDTV, DVD 576I( 625I) 50Hz

4 720* 480 31.47 59.94 27.000 SDTV 480P

5 720* 480 31.50 60.00 27.027 SDTV 480P

6 720* 576 31.25 50.00 27.000 SDTV 576P 50Hz

7 1280* 720 44.96 59.94 74.176 HDTV 720P

8 1280* 720 45.00 60.00 74.250 HDTV 720P

9 1280* 720 37.50 50.00 74.25 HDTV 720P 50Hz

10 1920* 1080 28.125 50.00 74.250 HDTV 1080I 50Hz,

11 1920* 1080 33.72 59.94 74.176 HDTV 1080I

12 1920* 1080 33.75 60.00 74.25 HDTV 1080I

13 1920* 1080 56.25 50 148.5 HDTV 1080P

14 1920* 1080 67.432 59.94 148.350 HDTV 1080P

15 1920* 1080 67.5 60.00 148.5 HDTV 1080P


- 8 - LGE Internal Use Only

NoSpecification


1 640* 350 31.468 70.09 25.17 EGA

2 720* 400 31.469 70.09 28.32 DOS

3 640* 480 31.469 59.94 25.17 VESA( VGA)

4 800* 600 37.879 60.317 40 VESA( SVGA)

5 1024* 768 48.363 60.004 65 VESA( XGA)

6 1280* 768 47.776 59.87 79.5 VESA( WXGA)

7 1360* 768 47.72 59.799 84.75 VESA( WXGA)

8 1280* 1024 63.668 59.895 109.00 XGA Only FHD Model

9 1920* 1080 66.587 59.934 138.50 WUXGA(Reduced Blanking) Only FHD Model

9. RGB 9.1 Analog PC, RGB- DTV –NOT SUPPORT

10. HDMI Input 10.1 PC –Spec. out but it can be shown the picture at only HDMI/ DVI IN 1 via DVI to HDMI Cable)

No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

1 640 x 480 31.469 59.94 25.17 VESA( VGA)

2 800 x 600 37.879 60.317 40.00 VESA( SVGA)

3 1024 x 768 48.363 60.004 65.00 VESA( XGA)

4 1280 x 768 47.776 59.87 79.5 VESA( WXGA)

5 1360 x 768 47.72 59.799 84.62 VESA( WXGA)

6 1366 x 768 47.7 60.00 84.62 WXGA

7 1280 x 1024 63.595 60.00 108.875 SXGA

8 1920 x 1080 66.647 59.988 138.625 WUXGA

10.2 DTV Mode

NoSpecification


1 720 x 480 15.73 59.94 13.500 SDTV, DVD 480I(525I)

2 720 x 480 15.75 60.00 13.514 SDTV, DVD 480I(525I) Spec. out

3 720 x 576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz but display.

4 720 x 480 31.47 59.94 27 SDTV 480P

5 720 x 480 31.5 60.00 27.027 SDTV 480P

6 720 x 576 31.25 50.00 27 SDTV 576P

7 1280 x 720 44.96 59.94 74.176 HDTV 720P

8 1280 x 720 45 60.00 74.25 HDTV 720P

9 1280 x 720 37.5 50.00 74.25 HDTV 720P

10 1920 x 1080 28.125 50.00 74.25 HDTV 1080I

11 1920 x 1080 33.72 59.94 74.176 HDTV 1080I

12 1920 x 1080 33.75 60.00 74.25 HDTV 1080I

13 1920 x 1080 56.25 50.00 148.5 HDTV 1080P

14 1920 x 1080 67.432 59.94 148.350 HDTV 1080P

15 1920 x 1080 67.5 60.00 148.5 HDTV 1080P

16 1920 x 1080 27 24.00 74.25 HDTV 1080P

17 1920 x 1080 33.75 30.00 74.25 HDTV 1080P

1) Gap between Front Frame /Back cover and Middle Cabinet2) Gap between Front Frame /Middle Cabinet

- 9 - LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved. Only for training and service purposes

Top View

Back Cover

Front Frame

Middle Cabinet

"b

"b

Gap b between Front Frame (Back cover) and Middle Cabinet-> 0 † b † B (Side gap)

Gap a between Front Frame and Middle Cabine-> 0 † a † A (Side gap)

"b

"a

Gap a between Front Frame and Middle Cabine-> 0 † a † A (Left/ Right gap)

3) Gap between Back Cover and Side AV

Back ViewSide View

Side AV

Back Cover

Gap f between Back Cover and Side AV-> 0 † f † 1.0Gap g between Back Cover and Side AV-> 0 † g † 1.0

11. Mechical spec. No Item Min Typ Max Unit

1. C/ A + B/ C top gap 0.5 1 1.5 mm

2. C/ A + B/ C side gap 0.5 1 1.5 mm

3. C/ A + Deco Front gap( ONE SIDE). 0.8 1 1.2 mm

*Active area1. Active area of LCD PANEL is in bezel of cabinet2. Interval between active area and bezel

|A-B|< 2.0 mm ,|C-D|< 2.0 mmA:Interval between left of active area and bezelB:Interval between right of active area and bezelC:Interval between top of active area and bezelD:Interval between bottom of active area and beze

4)Gap between Back Cover and Side AV


Side View "h"

Control Braket

Back Cover

Gap h between Back Cover and Control Bracket-> 0 † h † 0.8

C

B

D

AActive Area

Bezel



ADJUSTMENT INSTRUCTION

1. Application RangeThis specification sheet is applied to all of the LCD TV,LP91A/B/C/D chassis.

2. Specification1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolationtransformer will help protect test instrument.

2) Adjustment must be done in the correct order.3) The adjustment must be performed in the circumstance of

25 ±5 °C of temperature and 65±10% of relative humidity ifthere is no specific designation.

4) The input voltage of the receiver must keep 100~220V,50/60Hz.

5) Before adjustment, execute Heat-Run for 5 minutes at RFno signal.

3. Adjustment items3.1. PCB assembly adjustment items

(1) Download the MSTAR main software(IC800, Mstar ISP Utility)1) Using D/L Jig2) Using USB Memory Stick.

(2) ADC Calibration – RGB / Component(3) Input Tool-Option/Area option.(4) Check SW Version.

4. PCB assembly adjustment method4.1. Mstar Main S/W program download4.1.1. Using D/L Jig

(1) Preliminary steps1) Connect the download jig to D-sub(RGB) jack

(2) Download steps1) Execute ‘ISP Tool’ program, the main window(Mstar ISP

utility Vx.x.x) will be opened2) Click the “Connect” button and confirm “Dialog Box”

3) Click the “Config.” button and Change speed I2C Speedsetting : 350Khz~400Khz

4) Read and write bin file.Click “(1)Read” tab, and then load downloadfile(XXXX.bin) by clicking “Read”.

- LH20/ LH30

1

Filexxx.bin

1

Filexxx.bin

5) Click “(2)Auto” tab and set as below6) Click “(3)Run”.7) After downloading, you can see the “(4)Pass” message.

4.1.2. Using the Memory Stick* USB download : Service Mode1) Insert the USB memory stick to the ISB port.2) Automatically detect the SW Version.

-> S/W download process is executed automatically.3) Show the message “Copy the file from the Memory”

4) After Finished the Download, Automatically DC Off -> On

5) Check The update SW Version.

4.2. Adjust tool/area option.Adjust tool/area option refer to the BOM.

4.3. Adjust tool/area option.Adjust tool/area option refer to the BOM.

4.4. EDID D/L methodRecommend that don’t connect HDMI and RGB(D-SUB) cablewhen downloading the EDID.If not possible, recommend that connect the MSPG equipment.There are two methods of downloading the edid data

4.4.1. 1st MethodEDID datas are automatically downloaded when adjusting theTool Option2.Automatically downloaded when pushing the enter key afteradjusting the tool option2.It takes about 2seconds.

4.4.2. 2nd Method* Caution :

Must be checked that the tool option is right or not. If tool option is wrong, hdmi edid data could not bedownloaded well.

1) Press the ADJ key2) Move to the EDID D/L and Press the right direction key(G)3) Press the right direction key(G) at Start.4) After about a few seconds, appear “OK”, then compele.

4.4.3. RS-232C command Method(1) Command : AE 00 10

* Caution Don’t connect HDMI and RGB(D-SUB) cable whendownloading the EDID.If the cables are connected, Downloading of edid could befailed.


1

Filexxx.bin

4.4.4. EDID data(1) HD MODEL

<Analog(RGB): 128bytes>

<HDMI 1 : 256Bytes>

<HDMI 2 : 256Bytes>

4.5. ADC Calibration4.5.1. ADC Calibration - Component (Using External pattern)

(1) Required Equipments- Remote controller for adjustment- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator

(2) Process1) Change the Input to Component1 or 2 mode.2) Input the Component 480i@60Hz 100% Color Bar

YPbPr signal into Component1 or 2.(MSPG-925F Model: 209 / Pattern: 65 )

3) Press ADJ key on R/C for adjustment.4) Enter Password number. Password is “0 0 0 0”.5) Select “0. ADC calibration : Component” by using D/E

(CH +/-) and press ENTER(A).6) ADC adjustment is executed automatically .7) When ADC adjustment is finished, this OSD appear

4.5.2. ADC Calibration - RGB (Using External pattern)(1) Required Equipments

- Remote controller for adjustment- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator

(2) Process1) Change the Input to RGB mode..2) Input the PC 1024x768@60Hz Horizontal Color Bar

signal into RGB.(MSPG-925F Model: 60 / Pattern: 65 )

3) Press ADJ key on R/C for adjustment.4) Enter Password number. Password is “0 0 0 0”.5) Select “0. ADC calibration : RGB” by using D/E(CH +/-)

and press ENTER(A).6) ADC adjustment is executed automatically .7) When ADC adjustment is finished, this OSD appear


OK

OK

4.6. Input Tool-Option, Area Option.## TOOL Option, Area Option change and AC offBefore PCBA check, you have to change the Tool option,Area option and have to AC off/on (Plug out and in)(If missing this process, set can operate abnormally)

4.6.1. Profile: Must be changed the option value because being differentwith some setting value depend on module maker, inch andmarket

4.6.2. Equipment : adjustment remote control.

4.6.3. Adjustment methodThe input methods are same as other chassis.(Use IN-STARTKey on the Adjust Remocon.)(If not changed the option, the input menu can differ themodel spec.)* Refer to Job Expression of each main chassis ass’y

(EBTxxxxxxxx) for Option value * Never push the IN-STOP KEY after completing the functioninspection.

4.7. Check SW Version(1) Method

1) Push In-star key on Adjust remote-controller.2) SW Version check

Check “SW VER : V3.xx” – LH20

5. White Balance adjstment5.1. Overview

(1) Purpose : Adjust the color temperature to reduce thedeviation of the module color temperature.

(2) Principle : To adjust the white balance without thesaturation, Fix the one of R/G/B gain to 192 (default data)and decrease the others.

(3) Adjustment mode : Three modes – Cool / Medium / Warm

5.2. Required Equipment(1) Remote controller for adjustment (2) Color Analyzer : CA100+ or CA-210 or same product -

LCD TV (ch:9)(should be used in the calibrated ch by CS-1000)

(3) Auto W/B adjustment instrument(only for Auto adjustment)

5.3. Connecting diagram of equipment formeasuring (For automatic adjustment)

* LP91A~D Support RS-232C & I2C DDC Communication-WhiteBalance Mode.

(1) Enter the adjustment mode of DDC- Set command delay time : 50ms- Enter the DDC adjustment mode at the same time heat-

run mode when pushing the power on by power only key- Maintain the DDC adjustment mode with same condition

of Heat-run => Maintain after AC off/on in status of Heat-run pattern display)

(2) Release the DDC adjustment mode- Release the adjust mode after AC off/on or std-by off/on

in status of finishing the Hear-run mode- Release the Adjust mode when receiving the aging off

command(F3 00 00) from adjustment equipment.- Need to transmit the aging off command to TV set after

finishing the adjustment.- Check DDC adjust mode release by exit key and release

DDC adjust mode)

(3) Enter the adjust mode of white balance)- Enter the white balance adjustment mode with aging

command (F3, 00, FF)* Luminance min value is 150cd in the Cool/Medium/Warm

mode(For LCD)

5.3. Adjustment of White Balance (for Manualadjustment)

(1) Color analyzer(CA100+, CA210) should be used in thecalibrated ch by CS-1000

(2) Operate the zero-calibration of the CA100+ or CA-210,then stick sensor to the module when adjusting.

(3) For manual adjustment, it is also possible by the followingsequence.1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operateheat run longer than 15 minutes. (If not executed thisstep, the condition for W/B may be different.)

2) Push “Exit” key.3) Change to the AV mode by remote control.4) Input external pattern (85% white pattern)5) Push the ADJ key -> Enter “0000” (Password)6) Select “3. W/B ADJUST”7) Enter the W/B ADJUST Mode8) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) usingD/E(CH +/-) key on R/C..

9) Adjust R/ G/ B Gain using F/G(VOL +/-) key on R/C.10) Adjust three modes all (Cool / Medium / Warm) : Fix

the one of R/G/B gain and change the others11) When adjustment is completed, Enter “COPY ALL”.12) Exit adjustment mode using EXIT key on R/C.


* CASEFirst adjust the coordinate far away from the target value(x, y).1. x, y > target

i) Decrease the R, G. 2. x, y < target

i) First decrease the B gain, ii) Decrease the one of the others.

3. x > target, y < targeti) First decrease B, so make y a little more than the target.ii) Adjust x value by decreasing the R

4. x < target, y > targeti) First decrease B, so make x a little more than the target.ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using theCA100+ or CA210 equipment

To check the Coordinates of White Balance, you have tomeasure at the below conditions.Picture Mode : User 1Dynamic Contrast : OffDynamic Colour : Off(If you miss the upper condition, the coordinates of W/Bcan be lower than the spec.)


Coordinate Mode

x y Temp uv∆

Cool 0.276±0.002 0.283±0.002 11000K 0.000

Medium 0.285±0.002 0.293±0.002 9300K 0.000

Warm 0.313±0.002 0.329±0.002 6500K 0.003



TROUBLESHOOTING

No power(LED indicator off)

Check 24V, 12V, 5,2V of Power B/D

Check short of Main B/D or Change Power B/D

Pass

Check Output of IC1001, IC1003, IC1007

Check P307 Connector

Change LED Assy

: [A] PROCESS

Fail

Fail

Pass

Pass

Check LED Assy

Change IC1002,, Q1003

Pass

Check short of IC1001,IC1003, IC1007

Fail

Re-soldering or Change defectpart of IC1001, IC1003, IC1007

Fail

No Raster [B]: Process

Check LED statusOn Display Unit

Repeat A PROCESS

Pass

Fail

Check Output of IC802 Change IC802Fail

Change Inverter ConnectorOr InverterFail

Pass

Fail

Pass

Change ModuleFail

Check LVDS Cable

Pass

Check Panel Link Cable Or Module

Change Panel Link CableOr Module

Check Inverter ConnectorOr Inverter

Pass



No Raster on PC Signal

Check Input source Cableand Jack

Pass

Re-soldering or Change the defect part

Pass

Check the Input/OutputOf IC100 Fail

Re-soldering or Change the defect part,Check RGB EDID Data

Repeat [A], & [B] Process

Pass

Check the Input/OutputOf J104 Fail

Pass



Pass

No Raster on COMMPONENT Signal

Check Input source Cable And Jack

Pass


Pass




Check The Input/OutputOf JK101 Fail

Pass

No Raster on HDMI Signal


Pass

Check the Input/OutputOf JK301, JK302, JK303 Fail


Pass

Pass

Check the Input/OutputOf IC300, IC301, JK302 Fail

Re-soldering or Change the defect partCheck HDMI EDID Data

Re-download HDCP

Pass

Pass






No Raster On AV (Video, S-Video)Signal No Signal On TV(RF) Signal


Pass


Pass

Check The Input/OutputOf JK101, JK201

Pass


Pass

Fail

Pass




Pass

Check The Input/OutputOf TU500

Pass


Pass

Fail




No Sound

Check The Input Sourse.

Check The Input/OutputOf IC600.

Re-soldering or Change the defect part.Fail

Pass

Pass

Check The Speaker. Change Speaker.Fail

Check The Speaker Wire.

Pass

Change The Source Input.Fail

Copyright LG

Electronics. Inc. A

ll right reserved. O

nly for training and service purposesLG

E Internal U

se Only

- 19-

BL

OC

K D

IAG

RA

M

RGB_PC

PC_Audio

TV(RF)

COMP1

HDMI1HDMI2

RS232

TX

232C DriverST3232C

Tx/ Rx : 15Vpp

PC_R/ G/ B/ HS/ VS

PC_Audio_L/ R :700mVrms

MNT_OUT: 1Vpp

SIDE_V :1Vpp

SIDE_L/ SIDE_R :500mVrms

DDR2(512MB)

L_SPK_OUT R_SPK_OUT

EEPROM24C02

Comp1_L/ R :500mVrms

TUNER

AV1_VIN: 1Vpp

AV11_LIN/ RIN :500mVrms

PWMNTP3100L

MNT_OUT

MNT_LOUT/ ROUT: 500mVrms

AV2(Side AV)

MAIN SCALER

TXD / RXD : 5V Dig ital

COMP1_Y/ Pb/ Pr: 1/ 0.7Vpp

COMP2_Y/ Pb/ Pr: 1/0.7Vpp

IRHDMI_DATA_1HDMI_DATA_2

HDMI1_SCL/ SDA

OUT_E_TX_CLK

OUT_E_TX_EOUT_E_TX_D

OUT_E_TX_COUT_E_TX_BOUT_E_TX_A

TU_MAIN

S I F

COMP1_Y/ Pb/ Pr 1/ 0.7Vpp

AV1_VIN

PC_Audio_L/ R

COMP1_LIN/ RIN

L_CHR_CH

LV

DS

co

nn

ec

tor

TU_MAINSUB_SCL SDA

EEPROM24C02

EEPROM24C02

SIF

AV1_LIN/ RIN

MNT_L/ R OUT

AV1

MNT_OUT


COMP2_Y/ Pb/ : 1/ 0.7Vpp

COMP2_LIN/ RIN

COMP2

OUT_O_TX_CLK

OUT_O_TX_EOUT_O_TX_D

OUT_O_TX_COUT_O_TX_BOUT_O_TX_A

PC_R/ G/ B/ HS/ VS

HDM 2_SCL/ SDA

PC_SCL/ SDA

MNT_VOUT

AV2_VIN

AV2_LIN/ RIN

IIS_OUT

USB USB_DN/ PN

AUDIOAMP

HDMI3_SCL/ SDAEEPROM24C02

HDMI_DATA_3

TMDSTMDS

TMDSHDMI3

USBFor D/ L

EEPROM(256K)

Serial Flash(8MByte)

RGB_PC

PC_Audio

TV(RF)

COMP1

HDMI1HDMI2

RS232

TX

232C DriverST3232C

–

PC_R/ G/ B/ HS/ VS

PC_Audio_L/ R :700mVrms

MNT_OUT: 1Vpp

SIDE_V :1Vpp

SIDE_L/ SIDE_R :500mVrms

DDR2(512MB)

EEPROM24C02


TUNER

AV1_VIN: 1Vpp

AV11_LIN/ RIN :500mVrms

PWMNTP3100L

MNT_OUT

MNT_LOUT/ ROUT: 500mVrms

AV2(Side AV)

MAIN SCALER

TXD / RXD : 5V Dig ital

COMP1_Y/ Pb/ Pr: 1/ 0.7Vpp

COMP2_Y/ Pb/ Pr: 1/0.7Vpp

HDMI_DATA_1HDMI_DATA_2

_

OUT_E_TX_CLK–

OUT_E_TX_ –OUT_E_TX_ –

OUT_E_TX_C–OUT_E_TX_B–OUT_E_TX_A–

TU_MAIN

S I F

COMP1_Y/ Pb/ P : 1/ 0.7Vpp

AV1_VIN

PC_Audio_L/ R

COMP1_LIN/ RIN

L_CHR_CH

LV

DS

co

nn

ec

tor

TU_MAIN/

EEPROM24C02

EEPROM24C02

SIF

AV1_LIN/ RIN

MNT_L/ R OUT

AV1

MNT_OUT


COMP2_Y/ Pb/Pr 1/ 0.7Vpp

COMP2_LIN/ RIN

COMP2

OUT_O_TX_C –

OUT_O_TX_E–OUT_O_TX_D–

OUT_O_TX_C–OUT_O_TX_B–OUT_O_TX_A–

PC_R/ G/ B/ HS/ VS

PC_SCL/ SDAPC_SCL/ SDA

MNT_VOUT

AV2_VIN

AV2_LIN/ RIN

IIS_OUT

USB USB_DN/ PN

AUDIOAMP

HDMI3_SCL/ SDAHDMI3_SCL/ SDAEEPROM24C02

HDMI_DATA_3

TMDSTMDS

TMDSHDMI3

USBFor D/ L

EEPROM(256K)

Serial Flash(8MByte)

Copyright LG

Electronics. Inc. A



E Internal U

se Only

- 20-

300

200

200T

200N

800

804

540

803

805

400

900

510

310

500

120

121

802

801550

530

EX

PL

OD

ED

VIE

W

Many electrical and m

echanical parts in this chassis have special safety-related characteristics. These

parts are identified by in the Schem

atic Diagram

and EX

PLO

DE

D V

IEW

. It is e

ssen

tial th

at th

ese

spe

cial sa

fety p

arts sh

ou

ld b

e re

pla

ced

with

the

sam

e co

mp

on

en

ts as

recomm

ended in this manual to prevent X

-RA

DIA

TIO

N, S

hock, Fire, or other H

azards. D

o not modify the original design w

ithout permission of m

anufacturer.

IMP

OR

TA

NT

SA

FE

TY

NO

TIC

E

A2LV1

A10

MULTI_PW_SW

10R859

56AR81

2

SUB_SDA

HPD_

MST

_3

+1.8V_DDR

COMP2_PB

RT1C3904-T112Q802

EBC

DDR2_DQM0

100

R82

5

0.047uFC828

KEY1

RL_O

N

MX25L6405DMI-12GIC802

3 NC_1

2 VCC

4 NC_2

1 HOLD

6 NC_4

5 NC_3

7 CS

8 SO/SIO1 9WP/ACC

10GND

11NC_5

12NC_6

13NC_7

14NC_8

15SI.SIO0

16SCLK

0.01uFC864

0.1u

FC

882

I2S_

SCK

TMDS2_RX2-0.1uFC833

I2S_

MCL

K

USB_

DN

100R882

MAIN_SIF

PC_G

100

R80

24

33R844

10R

801

HDM

I3_S

IDE

0.047uFC830

PANE

L_ST

ATUS

TMDS2_RX0+

MNT_VOUT_T

TMDS

3_RX

0+

0.1uFC842

SW_RESET

RXD

0 .01uFC858

TMDS2_RX2+

+3.3V_MULTI_MST

0.1u

FC

813

12M

HzX8

01

10R874

1MR83

9

4 .7uFC812

RL_ON

M_SD

A

DDC_

SDA3

+3.3V_MULTI_MST

+3.3V_MST

MUTE_LINE

EEP_SCL

E-DI

M

SIDE_RIN

10R862

56AR805

DDR2_DQM1

10R

848

HDM

I3_S

IDE

EEP_

SCL

CEC_

C

10uFC866

0.01uFC860

47R834

56AR81

3

TMDS

3_RX

1+

SYS_

RESE

T

SPI_

CZ

I2S_

SDO

0.1uFC815

22KR842

TMDS2_RXC+

DDC_

SCL1

0.047uFC837

POW

ER_S

W

47R832

TMDS2_RXC-

+5VST_MST

0.1uFC848

56AR810

10R

841

HDM

I3_S

IDE

0.1uFC838

+1.2V_VDDC_MST

+3.3V_MULTI_MSTJTP-1127WEMSW800

1

243

MNT_L_AMP

0.1uFC811

MNT_VOUT

DDR2

_CAS

Z

PANEL_ON

1000pFC835

0.1uFC849

PC_B

TMDS

3_RX

2+

+3.3V_MULTI_MST

0.047uFC829

DDC_

SCL3

DDR2

_BA1

DISP_EN/VAVS_ON

DDR2

_RAS

Z

DDR2_D[0-15]

TMDS

3_RX

0-

10R854

COMP2_Y

33AR81

8

0.047uFC832

PC_A

UD_L

PC_V

S

CVBS

_LIN

SPI_DI

402R807READY

0.1u

FC

883

DDR2

_BA0

EEP_SCL

10R

820

HDM

I3_S

IDE

0 .01uFC859

+3.3V_MULTI_MST

DDR2_DQS0M

SIDE_LIN

SIDE_V

0.047uFC831

0.01uFC803

TMDS2_RX1+

+1.8V_DDR

DDC_

SDA1

SUB_SCL

DSUB

_SDA

10R890

100R881

CAT24WC08W-TIC803

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

DDR2

_CKE

+12V_AUDIO

SPI_

CLK

+3.3V_MULTI_MST

DDR2_DQS1M

0.01uFC807

KDS181D803

USB_

DP

+3.3V_MST

100

R80

25

+3.3V_MULTI_MST

56AR809

I-DIM

SPI_CZ

0.1u

FC

808

0.1uFC804

56R

852IR

0.01uFC841

EEP_

SDA

DDR2_A[0-12]

+3.3V_MULTI_MST

10R

822

HDM

I3_S

IDE

CVBS_VIN

10R851

DDR2_DQS1P

10R

823

HDM

I3_S

IDE

TMDS

3_RX

C-

MNT_VOUT_T

TMDS2_RX0-

+3.3V_MULTI_MST

DDR2_DQS0P

10R

821

HDM

I3_S

IDE

10R869

47R837

DDR2_MCLKZ

DDR2

_WEZ

TXD

56AR806

0.047uFC834

EEP_SDA

TMDS1_RXC+

24LC256-I/SMIC801

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

COM

P2_R

M_S

CL

+3.3V_MULTI_MST

PC_H

S

TMDS1_RX2-

0.01uFC850

+3.3V_MULTI_MST

TMDS

3_RX

C+

47uF25VC870

+3.3V_MULTI_MST

470R835

10R891

KDS181D802

TV_MAIN

1000

pFC

818

COMP2_PR

RT1C3904-T112Q804

NON 19_22"

E BC

0.1uFC867

22KR845

100

R80

26

TMDS

3_RX

1-

P_24V_SMALL_15V

0.01

uFC

840

2.2uFC861

HPD_MST_1

10R873

10R880

SPI_DO

PC_A

UD_R

0.01uFC810

56AR81

4

+1.2V_VDDC_MST

100

R80

23

TMDS2_RX1-

DDC_

SCL2

10R858

10R892

TMDS1_RX1+

10R871

TMDS1_RX2+

EEP_SDA

56AR80

0

10R

805

HDM

I3_S

IDE

KDS181D801

DDR2

_ODT

TMDS1_RXC-

SPI_

DI

I2S_

WS

DDR2_MCLK

0.047uFC826

TMDS1_RX0-

10R872

MNT_R_AMP

10R879

HPD_MST_2

0.1uFC853

0.01uFC839

DSUB

_SCL

0 .01uFC865

COM

P2_L

10uF

16V

C80

9

+1.8V_DDR

0.01uFC862

+1.2V_VDDC_MST

TMDS1_RX1-

4.7u

FC

820

100

R82

4

100

R82

9

KEY2

56AR81

5

TMDS1_RX0+

0.01uFC857

CVBS

_RIN

2.2uFC856

0.1uFC869

+5VST_MST

0.1uFC814

PC_R

SPI_CLK

33R843

0.1u

FC

844

10R856

TMDS

3_RX

2-

0.01

uFC

876

DDC_

SDA2

SPI_

DO

P_12V_SMALL_15V

+5VST_MSTPOWER_DET

POW

ER_D

ET

RT1C3904-T112Q803

E

B

C

+5VST_MST

SYS_RESET

100

R80

12

0 .01uFC877

0.01uFC878

0.01uFC879

TXD

RXD 0.

1uF

C86

3

ISA1530AC1Q800

EBC

ISA1530AC1Q801

E BC

2.2uF16VC8000

READY

+3.3V_MULTI_MST

0R

806

0R

870

S_VIDEO_DET

SIDE_YSIDE_C

DDC_WP

OPC_EN

4.7KR877

4.7KR8004

4.7KR817

470R809

47

R8041

220R808

68R810

0

R800READY

0

R8001

390R840

47R814

47R81647R81847R838

47R833

47R836

470R803

47R80447R81547R89747R802

47R83147R85747R830

47R87547R876

100R846100R847

10

0R

80

39

HD

MI3

_S

IDE

10

0R

80

40

HD

MI3

_S

IDE

4.7K R863

4.7K R864

100R8042

1KR8038

1KR8018

4.7KR8654.7KR866

1KR

867

1KR

868

100

R80

2110

0R

8022

100

R85

0

100

R84

910

0R

895

0RE

ADY

R80

170

READ

YR

8016

0R

8033

READ

Y

0R

8034

0R

8035

10KR8020

10KR8003

0.047uFC8000.047uFC801

0.047uFC827

0.047uFC8250.047uFC8470.047uFC845

0.047uFC843

0.047uFC836

0.1uFC868

1000pFC846

1KR884READY

1KR889

1KR811READY

1KR883

4.7KR8028

4.7KR8027

22R812

22R813

0.1uFC819

0.1uFC8060.1uFC805

4.7KNon_Small_FHD

R8010-*2

4.7KSmall_FHD

R8010-*1

4.7KSmall_HD

R896

4.7KApollo

R8010-*3

4.7KSmall_FHD

R896-*1

4.7KNon_Small_HD

R8011-*1

4.7KNon_Small_HD

R896-*2

4.7KApollo

R8011-*24.7K

Apollo

R898-*1

4.7KNon_Small_FHDR898

4.7K100Hz

R8011-*3 4.7K100Hz

R898-*2

4.7K R8011

Small_FHD

4.7K R8010

Small_HD

22R8005

22R8006

0R

826

0R

8274 .7uF

10V

C871

READY

120-ohmL800

12

0-o

hm

L8

01

120-ohmL802

2.2u

FC

823

2.2u

FC

824

2.2u

FC

821

2.2u

FC

873

2.2u

FC

822

2.2u

FC

874

2.2u

FC

802

2.2u

FC

875

MST99A88ML(MATRIX BASIC)

IC800

1 RXBCKN2 RXBCKP3 RXB0N4 RXB0P5 HOTPLUGB6 RXB1N7 RXB1P8 AVDD_33_19 RXB2N10 RXB2P11 RXACKN12 RXACKP13 RXA0N14 RXA0P15 AVDD_33_216 RXA1N17 RXA1P18 GND_119 RXA2N20 RXA2P21 HOTPLUGA22 REXT23 VCLAMP24 REFP25 REFM26 BIN1P27 SOGIN128 GIN1P29 RIN1P30 BINM31 BIN0P32 GINM33 GIN0P34 SOGIN035 RINM36 RIN0P37 AVDD_33_338 GND_239 BIN2P40 GIN2P41 SOGIN242 RIN2P43 CVBS644 CVBS545 CVBS446 CVBS347 CVBS248 CVBS149 VCOM150 CVBS051 VCOM052 AVDD_33_453 CVBSOUT54 GND_355 SIF0P56 SIF0M57 VDDC_158 AUL559 AUR560 AUVRM61 AUOUTL262 AUOUTR263 AUOUTL164 AUOUTR1

65AU

L066

AUR0

67AU

L168

AUR1

69AU

L270

AUR2

71AU

L372

AUR3

73AU

COM

74AU

L475

AUR4

76GN

D_4

77AU

VRP

78AU

VAG

79AV

DD_A

U80

GND_

581

VDDC

_282

DDCA

_CK

83DD

CA_D

A84

DDCD

A_CK

85DD

CDA_

DA86

DDCD

B_CK

87DD

CDB_

DA88

GPI

O20

89VD

DP_1

90VD

DC_3

91UA

RT2_

RX92

UART

2_TX

93DD

CDC_

CK94

RXCC

KN95

RXCC

KP96

DDCD

C_DA

97RX

C0N

98RX

C0P

99GN

D_6

100

RXC1

N10

1RX

C1P

102

AVDD

_DM

103

RXC2

N10

4RX

C2P

105

HOTP

LUGC

106

USB1

_DM

107

USB1

_DP

108

SCK

109

SDI

110

SDO

111

SCZ

112

PWM0

113

PWM1

114

PWM2

115

PWM3

116

LVA4

P11

7LV

A4M

118

LVA3

P11

9LV

A3M

120

LVAC

KP12

1LV

ACKM

122

LVA2

P12

3LV

A2M

124

LVA1

P12

5LV

A1M

126

LVA0

P12

7LV

A0M

128

VDDP

_2 129LVB4P130LVB4M131LVB3P132LVB3M133LVBCKP134LVBCKM135LVB2P136LVB2M137LVB1P138LVB1M139LVB0P140LVB0M141AVDD_LPLL142GND_7143VDDC_4144GPIO150/I2C_OUT_MUTE145GPIO151/I2C_OUT_SD2146GPIO152/I2C_OUT_SD3147GND_8148GPIO51149GPIO52150GPIO53151GPIO54152GPIO55153GPIO56154GPIO57155GPIO58156VDDP_3157VDDC_5158B_MDATA[4]159B_MDATA[3]160GND_9161B_MDATA[1]162B_MDATA[6]163AVDD_DDR_1164B_MDATA[11]165B_MDATA[12]166GND_10167B_MDATA[9]168B_MDATA[14]169AVDD_DDR_2170B_DDR2_DQM[1]171B_DDR2_DQM[0]172GND_11173B_DDR2_DQS[0]174B_DDR2_DQSB[0]175AVDD_DDR_3176VDDP_4177GND_12178B_DDR2_DQS[1]179B_DDR2_DQSB[1]180AVDD_DDR_4181B_MDATA[15]182B_MDATA[8]183GND_13184B_MDATA[10]185B_MDATA[13]186AVDD_DDR_5187B_MDATA[7]188B_MDATA[0]189B_MDATA[2]190B_MDATA[5]191B_MCLK192B_MCLKZ

193

GND_

1419

4AV

DD_M

EMPL

L19

5MV

REF

196

A_OD

T19

7A_

RASZ

198

A_CA

SZ19

9A_

MAD

R[0]

200

A_M

ADR[

2]20

1A_

MAD

R[4]

202

GND_

1520

3A_

MAD

R[6]

204

A_M

ADR[

8]20

5A_

MAD

R[11

]20

6A_

WEZ

207

A_BA

DR[1

]20

8A_

BADR

[0]

209

A_M

ADR[

1]21

0A_

MAD

R[10

]21

1AV

DD_D

DR_6

212

A_M

ADR[

5]21

3A_

MAD

R[9]

214

A_M

ADR[

12]

215

A_M

ADR[

7]21

6A_

MAD

R[3]

217

A_MC

LKE

218

VDDC

_621

9I2

S_IN

_WS/

GPI

O67

220

I2S_

IN_B

CK/

GPI

O68

221

I2S_

IN_S

D22

2I2S

_OUT

_MCK

223

I2S_

OUT

_WS

224

VDDP

_522

5GN

D_16

226

VDDC

_722

7I2

S_O

UT_B

CK22

8I2

S_O

UT_S

D22

9SP

DIFO

230

UART

2_RX

/I2CM

_SDA

231

UART

2_TX

/I2CM

_SCK

232

UART

1_RX

/GPI

O86

233

UART

1_TX

/GPI

O87

234

GND_

1723

5GN

D_18

236

USB0

_DM

237

USB0

_DP

238

SAR0

239

SAR1

240

SAR2

241

SAR3

242

AVDD

_MPL

L24

3XO

UT24

4XI

N24

5G

PIO

134

246

GPI

O13

524

7G

PIO

138

248

GPI

O13

924

9G

PIO

140

250

IRIN

251

HSYN

C025

2VS

YNC0

253

HSYN

C125

4VS

YNC1

255

CEC

256

HWRE

SET

LGE3767A [MST99A88ML(MATRIX ONLY SD DIVX_ NON RM) ]IC800-*1

1RXBCKN

2RXBCKP

3RXB0N

4RXB0P

5HOTPLUGB

6RXB1N

7RXB1P

8AVDD_33_1

9RXB2N

10RXB2P

11RXACKN

12RXACKP

13RXA0N

14RXA0P

15AVDD_33_2

16RXA1N

17RXA1P

18GND_1

19RXA2N

20RXA2P

21HOTPLUGA

22REXT

23VCLAMP

24REFP

25REFM

26BIN1P

27SOGIN1

28GIN1P

29RIN1P

30BINM

31BIN0P

32GINM

33GIN0P

34SOGIN0

35RINM

36RIN0P

37AVDD_33_3

38GND_2

39BIN2P

40GIN2P

41SOGIN2

42RIN2P

43CVBS6

44CVBS5

45CVBS4

46CVBS3

47CVBS2

48CVBS1

49VCOM1

50CVBS0

51VCOM0

52AVDD_33_4

53CVBSOUT

54GND_3

55SIF0P

56SIF0M

57VDDC_1

58AUL5

59AUR5

60AUVRM

61AUOUTL2

62AUOUTR2

63AUOUTL1

64AUOUTR1

65

AU

L0

66

AU

R0

67

AU

L1

68

AU

R1

69

AU

L2

70

AU

R2

71

AU

L3

72

AU

R3

73

AUCO

M

74

AU

L4

75

AU

R4

76

GN

D_4

77

AU

VR

P

78

AU

VAG

79

AVD

D_A

U

80

GN

D_5

81

VD

DC

_2

82

DD

CA_C

K

83

DD

CA_D

A

84

DD

CD

A_C

K

85

DD

CD

A_D

A

86

DD

CD

B_C

K

87

DD

CD

B_D

A

88

GP

IO2

0

89

VD

DP

_1

90

VD

DC

_3

91

UA

RT2_R

X

92

UA

RT2_TX

93

DD

CD

C_C

K

94

RXC

CKN

95

RX

CC

KP

96

DD

CD

C_D

A

97

RX

C0N

98

RX

C0P

99

GN

D_6

10

0R

XC

1N

10

1R

XC

1P

10

2AVD

D_D

M

10

3R

XC

2N

10

4R

XC

2P

10

5H

OTP

LUG

C

10

6U

SB

1_D

M

10

7U

SB

1_D

P

10

8S

CK

10

9S

DI

11

0S

DO

11

1S

CZ

11

2PW

M0

11

3PW

M1

11

4PW

M2

11

5PW

M3

11

6LV

A4P

11

7LV

A4M

11

8LV

A3P

11

9LV

A3M

12

0LV

AC

KP

12

1LV

AC

KM

12

2LV

A2P

12

3LV

A2M

12

4LV

A1P

12

5LV

A1M

12

6LV

A0P

12

7LV

A0M

12

8V

DD

P_2

129 LVB4P130 LVB4M131 LVB3P132 LVB3M133 LVBCKP134 LVBCKM135 LVB2P136 LVB2M137 LVB1P138 LVB1M139 LVB0P140 LVB0M141 AVDD_LPLL142 GND_7143 VDDC_4144 GPIO150/I2C_OUT_MUTE145 GPIO151/I2C_OUT_SD2146 GPIO152/I2C_OUT_SD3147 GND_8148 GPIO51149 GPIO52150 GPIO53151 GPIO54152 GPIO55153 GPIO56154 GPIO57155 GPIO58156 VDDP_3157 VDDC_5158 B_MDATA[4]159 B_MDATA[3]160 GND_9161 B_MDATA[1]162 B_MDATA[6]163 AVDD_DDR_1164 B_MDATA[11]165 B_MDATA[12]166 GND_10167 B_MDATA[9]168 B_MDATA[14]169 AVDD_DDR_2170 B_DDR2_DQM[1]171 B_DDR2_DQM[0]172 GND_11173 B_DDR2_DQS[0]174 B_DDR2_DQSB[0]175 AVDD_DDR_3176 VDDP_4177 GND_12178 B_DDR2_DQS[1]179 B_DDR2_DQSB[1]180 AVDD_DDR_4181 B_MDATA[15]182 B_MDATA[8]183 GND_13184 B_MDATA[10]185 B_MDATA[13]186 AVDD_DDR_5187 B_MDATA[7]188 B_MDATA[0]189 B_MDATA[2]190 B_MDATA[5]191 B_MCLK192 B_MCLKZ1

93

GN

D_14

19

4AVD

D_M

EM

PLL

19

5M

VR

EF

19

6A

_OD

T1

97

A_R

AS

Z1

98

A_C

AS

Z1

99

A_M

AD

R[0

]2

00

A_M

AD

R[2

]2

01

A_M

AD

R[4

]2

02

GN

D_15

20

3A

_M

AD

R[6

]2

04

A_M

AD

R[8

]2

05

A_M

AD

R[1

1]

20

6A_W

EZ

20

7A

_B

AD

R[1

]2

08

A_B

AD

R[0

]2

09

A_M

AD

R[1

]2

10

A_M

AD

R[1

0]

21

1A

VD

D_D

DR

_62

12

A_M

AD

R[5

]2

13

A_M

AD

R[9

]2

14

A_M

AD

R[1

2]

21

5A

_M

AD

R[7

]2

16

A_M

AD

R[3

]2

17

A_M

CLK

E2

18

VD

DC

_6

21

9I2

S_

IN_

WS

/GP

IO6

72

20

I2S

_IN

_B

CK

/GP

IO6

82

21

I2S

_IN

_S

D2

22

I2S

_O

UT

_M

CK

22

3I2

S_O

UT

_W

S2

24

VD

DP

_5

22

5G

ND

_16

22

6V

DD

C_7

22

7I2

S_O

UT

_B

CK

22

8I2

S_O

UT

_S

D2

29

SP

DIF

O2

30

UA

RT

2_R

X/I2

CM

_S

DA

23

1U

AR

T2_T

X/I2C

M_S

CK

23

2U

AR

T1_R

X/G

PIO

86

23

3U

AR

T1_T

X/G

PIO

87

23

4G

ND

_17

23

5G

ND

_18

23

6U

SB

0_D

M2

37

US

B0_D

P2

38

SA

R0

23

9S

AR

12

40

SA

R2

24

1S

AR

32

42

AVD

D_M

PLL

24

3XO

UT

24

4X

IN2

45

GP

IO1

34

24

6G

PIO

13

52

47

GP

IO1

38

24

8G

PIO

13

92

49

GP

IO1

40

25

0IR

IN2

51

HS

YN

C0

25

2V

SY

NC

02

53

HS

YN

C1

25

4V

SY

NC

12

55

CE

C2

56

HW

RESET

3.3KR819

DSUB

_SDA

LED_

R

RT1C3904-T112Q805

READY

EBC

DDC_WP10K

R828

READY

4.7KR878

4.7KR893

1KR861

0

R8037NON 19_22"

0R

894

0R

899

2K

R886

150R8851KR860

10KR8000

33KR8007NON 19_22"

10KR855

1K

R853

100R888

33KR887

20KR8036

19_22_26"

20pF

C81

7 20pF

C81

6

DDR2

_A[2

]

DDR2_D[1]

DDR2

_A[6

]

GN

D

DDR2_D[5]

DDR2

_A[1

0]

DDR2_D[0]

DDR2_D[10]

DDR2

_A[1

2]

DDR2_D[14]

DDR2

_A[0

]

DDR2_D[6]

DDR2

_A[5

]

DDR2_D[3]

DDR2

_A[4

]

DDR2_D[4]

DDR2_D[12]

DDR2

_A[9

]

DDR2_D[11]

DDR2

_A[8

]

DDR2_D[8]

DDR2_D[7]

DDR2_D[15]

DDR2_D[9]

DDR2

_A[3

]

DDR2_D[13]

DDR2

_A[1

1]

DDR2_D[2]

DDR2

_A[1

]

DDR2

_A[7

]

TXCE4-TXCE4+TXCE3-TXCE3+

TXCLKE-TXCLKE+

TXCE2-TXCE2+TXCE1-TXCE1+TXCE0-TXCE0+

TXCO4-TXCO4+TXCO3-TXCO3+

TXCLKO-TXCLKO+

TXCO2-TXCO2+TXCO1-TXCO1+TXCO0-TXCO0+

I2S_OUT

HDMI_3

EEPROM

HDM

I_1

[MODE SELECTION]

HDM

I_2

C804/C805/C806:Close to IC a s c l o s e a s p o s s i b l e

GAIN X 4

RESET

Clo

se t

o IC

wit

h w

idth

tra

ce

C l o s e t o I C a s c l o s e a s p o s s i b l e

HDCP EEPROM

USB

PART

SERIAL FLASH 64M

S-VIDEO

4.7K X4.7K

4.7K

X4.7K

R8010

X

R898

Non Small FHD

4.7K

X 4.7K

Small HD

*H/W OPTION

4.7K

4.7K 4.7K

100HZ

4.7K4.7K4.7K

Apollo

Non Small HD

R8011

X

X

X

4.7KX

R896

X

Small FHD (27)

4.7K

X

** Sma l l HD : 19 /22 /26 Inch** Non Small FHD : Normal(non 100Hz) FHD Model

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

SCH

EMATIC

DIA

GR

AM

Copyright LG

Electronics. Inc. A



E Internal U

se Only

MS

TAR

+1.8V_DDR

DDR2_A[0-12]

DDR2_BA0

DDR2_BA1

DDR2_MCLKDDR2_MCLKZDDR2_CKE

DDR2_ODT

DDR2_RASZDDR2_CASZDDR2_WEZ

DDR2_DQS0PDDR2_DQS1P

DDR2_DQM0DDR2_DQM1

DDR2_DQS0MDDR2_DQS1M

+1.8V_DDR

+1.8V_DDR

DDR2_D[0-15]

1000pFC905

V_REF

56

R900

56R901

56

R902

56R903

56

R904

56R905

0.01uFC904

0.01uF50V

C900

0.01uFC901

0.01uFC902

0.01uFC903

0.01uFC906

0.01uFC907

0.01uFC908

0.01uFC909

0.01uFC910

0.01uFC911

0.01uFC912

0.01uFC913

0.01uFC914

0.01uFC915

0.01uFC916

0.01uFC917

+1.8V_DDR

150R906

READY


V_REF

0.1uF50V

C918

HYB18TC512160B2F-2.5

IC900

J2VREF

J8CK

H2 VSSQ2

B7UDQS

N8A4

P8A8

L1NC4

L2BA0

R8NC3

K7RAS

F8 VSSQ3

F3LDM

P3A9

M3A1

N3A5

K8CK

R3NC5

L3BA1

J7VSSDL

L7CAS

F2 VSSQ4

B3UDM

M2A10/AP

K2CKE

R7NC6

M7A2

N7A6

M8A0

J1VDDL

K3WE

E8LDQS

P7A11

K9ODT

A2NC1

N2A3

P2A7

H8 VSSQ1

F7LDQS

A8UDQS

R2A12

L8CS

E2NC2

E7 VSSQ5D8 VSSQ6D2 VSSQ7A7 VSSQ8B8 VSSQ9B2 VSSQ10

P9 VSS1N1 VSS2J3 VSS3E3 VSS4A3 VSS5

G9 VDDQ1G7 VDDQ2G3 VDDQ3G1 VDDQ4E9 VDDQ5C9 VDDQ6C7 VDDQ7C3 VDDQ8C1 VDDQ9A9 VDDQ10

R1 VDD1M9 VDD2J9 VDD3E1 VDD4A1 VDD5

B9 DQ15B1 DQ14D9 DQ13D1 DQ12D3 DQ11D7 DQ10C2 DQ9C8 DQ8F9 DQ7F1 DQ6H9 DQ5H1 DQ4H3 DQ3H7 DQ2G2 DQ1G8 DQ0

10uF10V

C919

1K

R9

07

1K

R9

08

DDR2_A[0]

DDR2_A[12]

DDR2_A[11]

DDR2_A[1]

DDR2_A[2]

DDR2_A[3]

DDR2_A[4]

DDR2_A[5]

DDR2_A[6]

DDR2_A[7]

DDR2_A[8]

DDR2_A[9]

DDR2_A[10]

DDR2_D[0-15]

DDR2_D[0]

DDR2_D[1]

DDR2_D[2]

DDR2_D[3]

DDR2_D[4]

DDR2_D[5]

DDR2_D[6]

DDR2_D[7]

DDR2_D[8]

DDR2_D[9]

DDR2_D[10]

DDR2_D[11]

DDR2_D[12]

DDR2_D[13]

DDR2_D[14]

DDR2_D[15]

DDR2 MEMORY

Close to DDR2 IC

Close to DDR2 IC

Copyright LG

Electronics. Inc. A



E Internal U

se Only

DD

R2

47uF 25VC1002

10KR1003NON 19_22"

0.01uFC1007

DISP_EN/VAVS_ON

0.01uFC1046

RL_ON

SAM2333D1002

0.01uFC1008

2SC3875SQ1000

NON 19_22"

1 23

0.01uFC1011

0.01uFC1021

2SC3875SQ10021 2

3

100R1044-*1PWM_DIM

10KR1047

E-DIM

I-DIM

4.7KR1054NON SHARP 32&52",AUO PANEL_STATUS

33KR1065

NON 19_22"

1uF25VC1056

33KR1049

10KR1048RT1C3904-T112Q1001

E

BC

0.01uFC1010

0.1uFC1005

100uF16VC1009

POWER_SW

10KR1002

SI4925BDYEBK32753101

Q1003

3S2

2G1

4G2

1S1

5 D2_1

6 D2_2

7 D1_1

8 D1_2

RT1C3904-T112Q1004

E

B

C

10KR1068

1.6KR1069

22KR1070 1uF

C1048

0.01uFC1053

0CMO 32,42,47,57R1045

0CMO 32,42,47

R1039

0CMO 57"R1040

0NON CMO 32,42,47,57R1043

0CMO 57"

R1041

0R1064

0NON (CMO 32,42,47,57, SHARP 32")

R1023

0SHARP 52",AUO

R1053

0NON CMO 57"R1001

0CMO 32,42,47,57R1014

0R1042

1.2KR1005

P_12V_SMALL_15V

P_5V

P_5V

P_12V_SMALL_15V

+16V_NTP

+12V_AUDIO

+5VST_MST

P_12V_SMALL_15V

+5VST_MST +3.3V_MST

+5V_USB

+5V_TUNER

+5V_+12V_LCD

+5V_MULTI

P_5V

+5V_MULTI

P_5V P_12V_SMALL_15V

P_5V

+5VST_MST +5V_MULTI

PANEL_ON

0.1uF50V

C1001

10uF16VC1052

10uF 16VC1019

10uF16V

C1003

1/4

W

0 5%R1

07

4

19

_2

2"

SMAW200-11

P1002

19_22"

115V

215V

3GND

4GND

55V

65V

7NC

8NC

9Inverter_ON

10PWM_Dim

11A.Dim

P_5V

P_24V_SMALL_15V

P_12V_SMALL_15V

P_24V_SMALL_15V

P_24V_SMALL_15V

OPC_OUT

0

READY

R1077

10K19_22"R1065-*1

MP2212DNIC1006

3IN

2GND

4BS

1FB

5 VCC

6 SW_1

7 SW_2

8 EN/SYNC

+5V_MULTI

10R1056READY

0.1uF50V

C1024

READY

10KR1059

NON 19_22"

100uF16V

C1026

5.6KR1058

30KR1057

S2A 50V

19_22"D1001

10uF25V

C103010uF25V

C1031

10uF16V

C100010uF16V

C1020

+1.2V_VDDC_MST

0R1073

0.1uFC1054

+3.3V_MULTI_MST

100uF16VC1028

+1.8V_DDR

+1.8V

+5V_MULTI

AP2121N-3.3TRE1

IC1007

1

GND

2 VOUT3VIN 0.1uF16V

C1014

BD9130EFJ-E2IC1001

3ITH

2VCC

4GND

1ADJ

5PGND

6SW

7PVCC

8EN

10KR1006

1/1

0W

2K

1%R1

00

9

1/1

0W

3.3K1%

R1010

10uF10V

C1016

10uF6.3V

C10220.1uF50V

C10150.1uF50V

C1023

12KR1008

560pF50V

C10122200pF50V

C1055

READY

3 . 3R1078

READY

10uF16V

C1004

10uF16V

C1013

10KR1079

AZ1085S-3.3TR/E1IC1003

1ADJ/GND

2 OUTPUT3INPUT

10uF16V

C1017

10uF16V

C1018

AP1117EG-13

IC1002

1

ADJ/GND

2 OUT3IN

1KR1044DC_DIM

1KR1076

OPC_DISABLE

1KR1075

OPC_ENABLE

0R1013

2.2KR1050

2.2KR1051

2.2KR1052

68uF35V

C1006

0

R1012

NON 19_22"

3.6uHL1009

CIC21J501NEEAM58113401

L1000

CIC21J501NEL1008

FW20020-24SP1000

NON_19_22_26"

19NC

14 12V

95.2V

4 GND

18 24V

1312V

8 5.2V

3GND

1724V

12 GND

75.2V

2 Power ON

16 GND

11GND

6 GND

1NC

20 Inver te r ON

15GND

10 5.2V

5GND

21A.Dim 22 Er ro r Ou t

23NC 24 PWM Dim

1205%

R1004

561%

R1007

10KR101719_22"

2SC3875SQ1005

19_22"

1 23

RL_ON

+5V_MULTI

10R101519_22"

4.7KR101619_22"

120-ohm

L1001

120-ohm19/22"(HD)/22"(FHD)/32"(Sharp)

L1005120-ohm

26/27/32(LPL) /37 /42 /47 /52"

L1006

0LCML00003B

MLB-201209-0120P-N2L1007

MLB-201209-0120P-N2L1010

MLB-201209-0120P-N2

120-ohm

L1012

MLB-201209-0120P-N2

120-ohm

L1013

1uF 25VC1035

0.1uF16V

C1025

0.47uF25V C1043

NON SHARP 52",AUO

2.2uF 16VC1045

DC_DIM

2.2uF 16VC1044

3KR1046

FM20020-24P1001

26"

19NC

14 12V

95.2V

4 GND

18 24V

1312V

8 5.2V

3GND

1724V

12 GND

75.2V

2 Power ON

16 GND

11GND

6 GND

1NC

20 Inver te r ON

15GND

10 5.2V

5GND

21A.Dim 22 Er ro r Ou t

23NC 24 PWM Dim

25

.

2.2uHL1002

10KR1020

2KR1018

NON 19_22"1K

OPC_DISABLE

R1021 1KOPC_ENABLE

R1022

68uF35V

C1027

READY

10R1024

0.1uF50V

C1029

+5V_MULTI

0

R1011

560pF50V

C1032

2.2KR1000NON 19_22"

1uF 25VREADY

C1034

1uF 25VREADY

C1036

1uF 25VREADY

C1037

1uF 25VREADY

C1038

0.1uF50V

C1033

LED Block

**5V_MULTI->3.3V->1.2V

**Switch 12V:P12V **Switch 5V:5V_MULTI -> 1.8V

*SHARP32":DC DIMMING

**DC-DC CONVERTER 12V->5V_TUNER/USB

OUT:5V

*ST 5V->3.3V

**OPC_ENABLE : USE LGD Module

MAX 300mA

MAX 3A

OUT:1.27V

NTP,AUDIO DSP

DDR2, Vref

V0 = 0 .8* (1+(R2/R1) )

MAX 2A

MAX 3A

R1

R2

MAX 1A

OUT:3.3V

R1

R2

V0 = 0 .8* (1+(R1/R2) )

V0 = 1 .25*(1+(R2/R1))

R1

R2

OUT:1.85V

Smal l (19_22")

Close to Q1003


Copyright LG

Electronics. Inc. A



E Internal U

se Only

PO

WE

R

0.1uFC644

0.1uFC637

M_S

DA1000pFC606

22000pFC616

22000pFC623+1.8V_DVDD

1000pF50V

C651

0.47uFC632

MULTI_PW_SW

0.1uFC605

+1.8V_DVDD

0.1uFC615

0.1uFC629

AMP_

MUT

E_HO

TEL

+3.3V_MULTI_MST

0.1uFC643

DA-8580

EAP38319001

L6072S

1S 1F

2F

0.1uFC617

0.1uFC602

0.01uFC647

SPK_R+

M_S

CL

0 .1uFC610

DA-8580

EAP38319001

L6032S

1S 1F

2F

22000pFC611

SPK_L+

+1.8V_AVDD

SPK_L-

0.1uFC669

+16V_NTP

+16V_NTP

SPK_R-

100pFC601

22000pFC625

+1.8V_AVDD

0.01uFC672

0.01uFC648

1000pFC603

SW_RESET

0.47uFC673

0.01uFC671

0.1uFC626

0.01uFC613

330uF35VC612

SPK_L-

SPK_R+

+1.8V_DVDD

SPK_R-

SMAW250-04

P600

1

2

3

4SPK_L+

+1.8V_AVDD

+1.8V

I2S_MCLK

I2S_

SDO

I2S_

WS

I2S_

SCK

390pFC619

390pFC621

390pFC630

390pFC634

1uFC608

1uFC618

1uFC624

1uFC614

0.1uF50V

C607

10uF35V

C642READY

+12V_AUDIO

MNT_R_AMP

+12V_AUDIO

RT1C3904-T112Q600

E

B

C

RT1C3904-T112Q601

E

B

C

MNT_L_AMP

0.01uFC635

MNT_ROUT

+12V_AUDIO

LM324D

IC601

3 INPUT1+

2 INPUT1-

4 VCC

1 OUT1

6 INPUT2-

5 INPUT2+

7 OUT2 8OUT3

9INPUT3-

10INPUT3+

11GND

12INPUT4+

13INPUT4-

14OUT4

6800pFC628

6800pFC627

MNT_LOUT

AUDIO_R

SPK_R-_HOTEL

SPK_R+_HOTEL

12505WR-09A00

HOTEL_OPT

P601

1

2

3

4

5

6

7

8

9

10

0.1uFHOTEL_OPT

C636

+16V_NTP

RT1C3904-T112HOTEL_OPT

Q602

E

BC

AMP_MUTE_HOTEL

+3.3V_MULTI_MST

SW_RESET

10uF16V

C600

10uF16V

C604

10uF16VC609

3 . 3R604

12R608

12R611

12R610

12R638

4.7KR663

4.7KR623

3 . 3R626

3 . 3R625

100R601

3.3KR600

10

0R

67

6

10

0R

67

7

10

0R

67

8

100R602

100R603 0

R65

6HO

TEL_

OPT

0R673

12R658

12R653

12R621

12R654

4.7KR628

4.7KR667

3 . 3R671

3 . 3R635

1KR607

10KNON_HOTEL_OPT

R613

12KHOTEL_OPT

R613-*

5.6KR614

5.6KR615

10KNON_HOTEL_OPT

R616

12KHOTEL_OPT

R616-*

1KR609

4.7KR606

200HOTEL_OPTR612

10KHOTEL_OPT

R617

0HOTEL_OPTR620

0HOTEL_OPT

R619

4.7KR605 33pFC631

33pFC633

0.1uFC620

0.1uFC622

6.8KR618

6.8KR622

NTP-3100LIC600

1BST1A

2VDR1A

3RESET

4AD

5DVSS_1

6VSS_IO

7CLK_I

8VDD_IO

9DGND_PLL

10AGND_PLL

11LFM

12AVDD_PLL

13DVDD_PLL

14TEST0

15DV

SS_2

16DV

DD

17SD

ATA

18W

CK

19BC

K

20SD

A

21SC

L

22M

ONIT

OR_0

23M

ONIT

OR_1

24M

ONIT

OR_2

25FA

ULT

26VD

R2B

27BS

T2B

28PG

ND2B

_1

29 PGND2B_2

30 OUT2B_1

31 OUT2B_2

32 PVDD2B_1

33 PVDD2B_2

34 PVDD2A_1

35 PVDD2A_2

36 OUT2A_1

37 OUT2A_2

38 PGND2A_1

39 PGND2A_2

40 BST2A

41 VDR2A

42 NC

43VD

R1B

44BS

T1B

45PG

ND1B

_1

46PG

ND1B

_2

47O

UT1B

_1

48O

UT1B

_2

49PV

DD1B

_1

50PV

DD1B

_2

51PV

DD1A

_1

52PV

DD1A

_2

53O

UT1A

_1

54O

UT1A

_2

55PG

ND1A

_1

56PG

ND1A

_2

MLB-201209-0120P-N20LCML00003B

120-ohmL605

MLB-201209-0120P-N2

0LCML00003B

120-ohmL606

33pF50V

C638

READY

33pF50V

C639

READY

+3.3V_MST

10KR630

RT1C3904-T112Q603

E

BC

10KR629

MULTI_PW_SW0

R627READY

0

R624READY

22KR631READY

SPK_L-

Main AMP

AMP :GAIN X 4

Chinese Hote l Opt ion


Copyright LG

Electronics. Inc. A



E Internal U

se Only

AU

DI

MAIN_SIF

0.01uFC501

M_SDA

27pFC500

+5V_TUNER

TV_MAIN

M_SCL

+5V_TUNER

C504

READY

27pFC502

10uHL502

READY

82pFC507

READY

10uF16V

C508

120-ohmL500

READY

ISA1530AC1Q502

E

BC

TAFT-H203F

TU500-*1

NTSC_TUNER

14NC_5

13V-OUT

5RF_AGC

12NC_4

11MOPLL_AS

2GND_1

19NC_8

18NC_7

10SCL

4NC_2

1NC_1

17NC_6

9SDA

8GND_2

3+B[5V]

16SIF-OUT

7NC_3

6TP[3.3V_OPT]

15A-OUT

21

SHIELD

20NC_9

TAFT-Z203DTU500

PAL_TUNER

14 NC_5

13 V-OUT

5 RF_AGC

12 NC_4

11 MOPLL_AS

2 GND_1

19 NC_8

18 NC_7

10 SCL

4 NC_2

1 NC_1

17 NC_6

9 SDA

8 GND_2

3 +B[5V]

16 SIF-OUT

7 NC_3

6 TP[3.3V_OPT]

15 A-OUT

21

SHIELD

20 NC_9

4.7KR502

220R506

220R507

100uF16VC505

100uF16VC509

100uF16VC506

120-ohmL501

47R504

47R505

0.1uF50V

C503

0

L501-*1

0 Ohm

Near the p in


Copyright LG

Electronics. Inc. A



E Internal U

se Only

TU

NE

R

TMDS3_RX2-

+5V_HDMI_2

TMDS3_RXC-

HPD_MST_2

TMDS3_RX0+

TMDS2_RX2-

CECTMDS2_RXC-

TMDS2_RXC+

TMDS1_RXC-

TMDS2_RX0+

TMDS3_RX0-

TMDS3_RX1+

TMDS3_RXC+

+5V_HDMI_2

HPD_MST_1

CEC

TMDS1_RX2+

TMDS2_RX1+

+5V_MULTI

+5V_HDMI_1

TMDS3_RX2+

TMDS2_RX0-

TMDS1_RX1-

TMDS2_RX1-

TMDS1_RX2-

+5V_HDMI_3

TMDS3_RX1-

+5V_MULTI+5V_HDMI_3

+5V_MULTI+5V_HDMI_1

TMDS1_RX0-

TMDS1_RX1+

CEC

TMDS1_RX0+

TMDS2_RX2+

TMDS1_RXC+

HPD_MST_3

DDC_SDA2DDC_SCL2

DDC_SDA1DDC_SCL1

DDC_SDA3DDC_SCL3

JP304

JP305

JP301

JP300

JP302

JP303

2SC3875S

RT1C3904-T112

Q301

E

B

C

2SC3875SRT1C3904-T112

Q300

E

B

C

2SC3875S

RT1C3904-T112

Q302

E

B

C

KJA-ET-0-0032 JK303

14 NC

13 CEC

5 DATA1_SHIELD

20

JACK_GND

12 CLK-

11 CLK_SHIELD

2 DATA2_SHIELD

19 HPD

18+5V_POWER

10 CLK+

4 DATA1+

1 DATA2+

17DDC/CEC_GND

9 DATA0-

8 DATA0_SHIELD

3 DATA2-

16 SDA

7 DATA0+

6 DATA1-

15 SCL

KDS184SD300A

1

C

A2

KDS184SD301A

1

C

A2

KDS184SD302A

1

C

A2

CAT24C02WI-GT3IC301

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

CAT24C02WI-GT3IC302

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

CAT24C02WI-GT3IC300

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

DDC_WP DDC_WP

DDC_WP BSS83CEC_READYQ303

SBD

G CEC

+3.3V_MST

CEC_C

CDS3C30GTH30V CEC_READY

D304

MMBD301LT1G30VCEC_READY

D303

10KR301

1KR303

0.01uFC300

10KR300

1KR302

100R329

1KR314

10KR312

68KCEC_READY

R315

0R313

100R317

100R318100R305

100R304

0.01uFC301

100R331

100R306

100R307

0.01uFC302

100R327

10KR308

10KR310

10KR309

10KR311

10KR319

10KR320

QJ41193-CFEE1-7FJK301

1 DATA2+

2 DATA2_SHIELD

3 DATA2-

4 DATA1+

5 DATA1_SHIELD

6 DATA1-

7 DATA0+

8 DATA0_SHIELD

9 DATA0-

10 CLK+11

12

13

14

15

16

17

18

19

20JACK_GND

21 .

22

QJ41193-CFEE1-7FJK302

1 DATA2+

2 DATA2_SHIELD

3 DATA2-

4 DATA1+

5 DATA1_SHIELD

6 DATA1-

7 DATA0+

8 DATA0_SHIELD

9 DATA0-

10 CLK+11

12

13

14

15

16

17

18

19

20JACK_GND

21 .

22

56KCEC_READY

R316

OPTION

SW_HPD : USE SW HPD (Default)

MST_HPD : USE MST HPD


Copyright LG

Electronics. Inc. A



E Internal U

se Only

HD

MI


CVBS_LIN

MUTE_LINE

AUDIO_R

SD05ZD100

100uF16V C102

SD05ZD103

SD05ZD105

MNT_ROUT

CVBS_VIN

SPK_R+_HOTEL

RT1C3904-T112Q100

EBC

SPK_R-_HOTEL

CVBS_RIN

SD05ZD104

10uF16V C101

MUTE_LINE

SD05ZD101

SD05ZD102

MNT_LOUT

RT1C3904-T112Q101 E

BC

MNT_VOUT

10uF16V C10030VNON_HOTEL_OPT

D102

30VNON_HOTEL_OPT

D103

30VD101

30VADUC30S03010L_AMODIODE D100

30VD104

30VD105

COMP2_Y

COMP2_PB

COMP2_PR

COMP2_L

COMP2_R

S_VIDEO_DET

SIDE_Y

SIDE_C

+3.3V_MULTI_MST

OPTREADY

C104

30VD106

30VD107

SD05ZD106

SD05ZD107

PSJ014-01JK101

S-VIDEO

GND6

1

C-LUG1

2C-LUG2

30-SPRING

4C-LUG3

5 C-LUG4

SHIELD7

75R102

0HOTEL_OPTR103

0HOTEL_OPTR105

0NON_HOTEL_OPTR106

0HOTEL_OPTR101

75R109

75R108

75R107

220KR104

12KR118

12KR117

12KR119

12KR120

10KR113

10KR115

10KR116

220KR100

220KR111

220KR112

75R110

75R122

S-VIDEO

75R121

S-VIDEO

10KR123

100pFREADY

C103

10KR114

PPJ226-01JK100

9A [GN]1P_CAN

4A [GN]O-SPRING_A

3A [GN]CONTACT_A

9B [BL]1P_CAN

8B [BL]C-LUG_A

9C [RD]1P_CAN_1

8C [RD]C-LUG_A

9D [WH]1P_CAN

8D [WH]C-LUG_A_1

9E[RD]1P_CAN_2

4E[RD]O-SPRING_A_1

3E [RD]CONTACT_A_1

9F [YL]2P_CAN

4F [YL]O-SPRING_A

3F [YL]CONTACT_A

9G [WH]2P_CAN

8G [WH]C-LUG_A_2

9H [RD]2P_CAN

4H [RD]O-SPRING_A_2

3H [RD]CONTACT_A_2

5J[YL]O-SPRING_B

6J[YL]CONTACT_B

7K[WH]C-LUG_B

5L[RD]O-SPRING_B

6L[RD]CONTACT_B

POP NOISE

MNT

_OUT

COM

PONENT1

POP NOISE

AV1

COMPONENT1, AV1, MNT_OUT[JACK PACK TYPE D] : JK100

S-VIDEO(China Model)

Copyright LG

Electronics. Inc. A



E Internal U

se Only

INP

UT

1

USB_DN

USB_DP

SIDE_LIN

SIDE_RIN

5.6BZD203

SIDE_V

PPJ218-01

JK201

5C[RD]CONTACT

2C[RD]U_CAN

4C[RD]O_SPRING

2B[WH]U_CAN

3B[WH]C_LUG

2A[YL]U_CAN

5A[YL]CONTACT

4A[YL]O_SPRING5.6BZD202

US

B D

OW

N S

TR

EA

M

KJA-

UB-

4-00

04

SIDE_USB

JK204

12

34

5

IR_OUT

+3.3V_MST

TXD

4.7KR204

ST3232CDRIC200

3C1-

2V+

4C2+

1C1+

6V-

5C2-

7T2OUT

8R2IN 9 R2OUT

10 T2IN

11 T1IN

12 R1OUT

13 R1IN

14 T1OUT

15 GND

16 VCC

4.7KR205

RXD

KCN-DS-1-0088JK200

1

2

3

4

5

6

7

8

9

10

+3.3V_MST

+5VST_MST

6630TGA004K

KCN-DS-1-0089

JK202

1RED

2GREEN

3BLUE

4GND_1

5DDC_GND

6 RED_GND

7 GREEN_GND

8 BLUE_GND

9 NC

10 SYNC_GND

11GND_2

12 DDC_DATA

13 H_SYNC

14 V_SYNC

15 DDC_CLOCK

16 SHILED

SD05ZD200

DSUB_SDA

PC_VSSD05ZD201

EN

KM

C2837-T

112

D2

11A

AC

C

PC_B

EN

KM

C2837-T

112

D2

10A

AC

C

PEJ024-01JK203

6B T_TERMINAL2

8 SHIELD_PLATE

7B B_TERMINAL2

5 T_SPRING

4 R_SPRING

7A B_TERMINAL1

6A T_TERMINAL1

3 E_SPRING

DSUB_SDA

PC_AUD_R

PC_G

DSUB_SCL

CAT24C02WI-GT3IC201

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

EN

KM

C2837-T

112

D2

12A

AC

C

DDC_WP

PC_HS

PC_AUD_L

+5V_MULTI

DSUB_SCL

PC_R

CDS3C30GTH30VD202

CDS3C30GTH30V

D203

ADUC30S03010L_AMODIODE 30V

D200


D201

30VD206

30VD205

ADUC30S03010L_AMODIODE 30VD204


D209

30VD208

READY30V

D207

READY

USB_DL_N

USB_DL_P

0

REAR_USBR229

0

REAR_USB

R230

US

B D

OW

N S

TR

EA

M

UB

01

12

3-4

HH

S-4

F

JK205REAR_USB

12

34

5

0 .1uFC203

0.1uFC200

0.1uFC201

0.1uFC202

0.01uFC205

0.1uFC204

0.1uFC206

0.1uFC207

100R202

100R203

75R227

220KR223

READY

220KR222

READY

12KR226

12KR228

75R211

75R212

75R213

4.7KR214

4.7KR215

220KR231

220KR232

10K

R233

10K

R234

12KR235

12KR236

4.7KR220

4.7KR221

100R216

100R217

100R218

0.1uFOCP_READY

C208

MIC2009YM6-TR OCP_READYIC202

3ENABLE

2GND

4 FAULT/

1VIN6 VOUT

5 ILIMIT10uFOCP_READY

C209

120OHMOCP_READY

L200

+5V_USB

1KOCP_READY

R209

4.7KOCP_READY

R210

0Non_OCP

R237

10uF6.3VC210

USB_DL_N

USB_DL_P

68R207

68R208

68pFC213

68pFC211

4.7KR219

READY

0

R200

0

R201

500L201

220uF16VC212

100uF16VC214

KDS226D213

OCP_READY

AAC

C

510OCP_READY

R238

160

OCP_READYR206

10KR224

10KR225

IR_OUT

USB

I t ’ s p o s s i b e l t o 2 7 ~ 4 7 o h m

** 1A Des ign

SIDE AV

RS-232C (CI ITEM)

PC EDID

PC

PC SOUND

P i n t o P i n w i t hEAN43439401

Close to SIDE_USB


Copyright LG

Electronics. Inc. A



E Internal U

se Only

INP

UT

2

TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-

47pFC403

22IR-OUTR430

470pFC404NON_19_22_26"

KEY1

ZD401

120ohmL406NON_19_22_26"

ZD402

+5VST_MST

ZD400

500-ohmL410NON_19_22_26"

IR_OUT

+3.3V_MULTI_MST

10KIR-OUT

R429

2SC3052Q405

IR-OUTE

BC

500-ohmL411NON_19_22_26" SUB_SCL

120ohmL402

KEY2

2SC3052Q404

IR-OUTEB

C

+5VST_MST

IR

SUB_SDA

0.1uFC408NON_19_22_26"

+3.3V_MST

+5VST_MST

0.1uFC411NON_19_22_26"

470pFC412

NON_19_22_26"

120ohmL403NON_19_22_26"

+3.3V_MULTI_MST

+3.3V_MULTI_MST

+5V_+12V_LCD

0.1uFC407 READY

47uF16V

C406

0.1uF16VC414 NON_19_22_26"

+3.3V_MST

KEY2

100pF50V

C40119_22_26"

KEY1

100pF50V

C40019_22_26"

+5V_+12V_LCD

TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-,TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-

+5V_+12V_LCD

+3.3V_MULTI_MST

OPC_EN

E-DIM

OPC_OUT

100pF50V

C405

19_22_26"

SUB_SCL

100pF50V

C402

19_22_26"

12507WS-12L

P400

NON_19_22_26"

1SCL

2SDA

3GND

4KEY1

5KEY2

65V_ST

7GND

8WARM_ST(LED_R_BIG)

9IR

10GND

11ST_3.3V(LED_B)

12POWER_ON(LED_R_SMALL)

13

.

P40519_22_26"

1KEY1

2KEY2

3GND

45V_ST

5GND

6IR

7LED_B

8LED_R

9

.BG1608B121F

L40019_22_26"

BG1608B121FL401

19_22_26"

BG1608B121FL408

19_22_26"

BG1608B121FL405

19_22_26"

4.7KR420

4.7KR421

10KIR-OUT

R427

10KIR-OUTR428

47KIR-OUT

R426

0R417

NON_19_22_26"

0R400

READY

0

R403

NON_19_22_26"

0R413READY

0R402

8B IT o r 52 sha rp

4.7K10BIT

R401

4.7KJEIDA

R407

0R424VESA100R409

READY

0READYR405

0

OPC_ENABLE

R412

470R435

OPC_ENABLE

SMAW200-03

P40419_22_26"

1KEY1

2KEY2

3GND

120-ohmL404

120-ohmL407NON_19_22_26"

TF05-51S

P401

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

FF10001-30

P402

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

SMW200-28CP403

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

LED_R

+3.3V_MST

RT1C3904-T112Q400

OPC_ENABLE

EBC 1K

R411

OPC_ENABLE

10KR404

19_22_26"

2SC3052Q401

19_22_26"E

BC

+3.3V_MULTI_MST

10KR410

19_22_26"

10KR414

19_22_26"

2SC3052Q402

19_22_26"E

BC

+3.3V_MST

10KR41519_22_26"

4.7KR40619_22_26"

0READY

R416

0READY

R418

0NON 22/27" FHD

R419

0NON 22/27" FHD

R422

0NON 22/27" FHD

R423

0NON 22/27" FHD

R431

0NON 22/27" FHD

R425

TXCO3+

TXCE1+

TXCO1+

TXCE1-

TXCLKO+

TXCO2-

TXCO2+

TXCO1-

TXCE2+

TXCE2-

TXCLKE+

TXCLKE-

TXCE3+

TXCE3-

TXCE4+

TXCE4-

TXCO3-

TXCO4+

TXCO4-

TXCLKO-

TXCE2-

TXCE2+

TXCE1-

TXCE1+

TXCE0-

TXCE0+

TXCLKE+

TXCLKE-

TXCE3+

TXCE3-

TXCE3-

TXCE3+

TXCLKE-

TXCLKE+

TXCE2-

TXCE2+

TXCE1-

TXCE1+

TXCE0-

TXCE0+

TXCE0-

TXCE0+

TXCO0+

TXCO0-

FHD

X

R4024.7K10BIT(FHD) X

8BIT(HD)X

X0

X

3 2 s h a r p

R401

00

X5 2 s h a r p8BIT(FHD)

CONTROL KEY

OPC_EABLE

OPC_OUTPUT

External VBR

PANEL WAFER

IR(19/22/26")

(19/22/26")

HD(19/22")

IR(Non 19/22/26)CONTROL KEY(Non 19/22/26)

*8BIT(FHD):22/27"

HD(26/32/37/42/47")


Copyright LG

Electronics. Inc. A



E Internal U

se Only

LVD

S/ C

TR

KE

Y

Feb., 2009Printed in KoreaP/NO : MFL60021514

lcd tv service manual - turuta · b c ddr2_dqm0 100 r825 c828 0.047uf key1 rl_on mx25l6405dmi-12g...

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