Sharp LC-37D42U, LC-37D42, LC-32D42 Service Manual

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LC-32D42U/LC-37D42U

SERVICE MANUAL

No. S06X9LC32D42U

LCD COLOR TELEVISION

LC-32D42U

MODELS

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

CAUTION ............................................................i

PRECAUTIONS A PRENDRE LORS DE

LA REPARATION...............................................ii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER ........................................................... iii

PRECAUTIONS IN SERVICING THE

HDCP-KEY ROM ..............................................iv

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS ......................................... 1-1

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL .................................. 2-1

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS ................................................ 3-1

LC-37D42U

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM ......................8-1

[2] SYSTEM BLOCK DIAGRAM .........................8-3

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN Unit ...................................................... 9-1

[2] AV TERMINAL Unit........................................9-9

[3] R/C, LED Unit .............................................. 9-11

[4] KEY Unit ......................................................9-12

CHAPTER 10. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM.......................................................... 10-1

[2] R/C, LED Unit ..............................................10-2

[3] MAIN Unit ....................................................10-3

[4] AV TERMINAL Unit....................................10-43

[5] KEY Unit ....................................................10-47

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS ................... 4-1

CHAPTER 5. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ....................... 5-1

CHAPTER 6. TROUBLE SHOOTING TABLE

[1] TROUBLE SHOOTING TABLE...................... 6-1

CHAPTER 7. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS.......................... 7-1

Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

Parts Guide

This document has been published to be used for after sales service only. The contents are subject to change without notice.

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LC-32D42U/LC-37D42U

Service Manual

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks:

3. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver.

4. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.

5. To be sure that no shock hazard exists, check for leakage current in the following manner.

• Plug the AC cord directly into a 120 volt AC outlet.

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.

• Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.

All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.)

Any reading of 0.75 Vrms (this corresponds to 0.5 mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have special safety-related characteristics.

These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features

are identified by " " and shaded areas in the Replacement Parts List and Schematic Diagrams.

For continued protection, replacement parts must be identical to those used in the original circuit.

The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:

CAUTION: FO R C O N T I N U E D PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

F7001 (250V 6.3A)

DVM

AC SCALE

1.5k ohm 10W

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

0.15µF

TEST PROBE

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LC-32D42U/LC-37D42U

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

De nombreuses pièces, électriques et mécaniques, dans les téléviseur ACL présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont souvent pas évidentes à vue. Le degré de protection ne peut pas être nécessairement augmentée en utilisant des pièces de remplacement étalonnées pour haute tension, puissance, etc. Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel; les pièces électriques qui présentent ces particularités sont identifiées par la marque " " et hachurées dans la liste des pièces de remplacement et les diagrammes schématiques.

Pour assurer la protection, ces pièces doivent être identiques à celles utilisées dans le circuit d'origine. L'utilisation de pièces qui n'ont pas les mêmes caractéristiques que les pièces recommandées par l'usine, indiquées dans ce manuel, peut provoquer des électrocutions, incendies, radiations X ou autres accidents.

AVERTISSEMENT

•

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

N'entreprendre aucune modification de tout circuit. C'est dangereux.

Débrancher le récepteur avant toute réparation.

Inspecter tous les faisceaux de câbles pour s'assurer que les fils ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.

Inspecter tous les dispositifs de protection comme les boutons de commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage et de compartiment, les réseaux de résistancecapacité, les isolateurs mécaniques, etc.

S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la fuite de courant, de la facon suivante:

Brancher le cordon d'alimentation directem-ent à une prise de courant de 120V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ 10 watts en parallèle avec un condensateur de 0.15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre.

Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension en travers de la résistance.

Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.) La tension de pointe mesurèe ne doit pas dépasser 0.75V (correspondante au courant CA de pointe de 0.5mA). Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.

PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE FUSIBLE

F7001 (250V 6.3A)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer les vérifications suivantes.

DVM

ECHELLE CA

1.5k ohm 10W

0.15

SONDE D'ESSAI

AUX PIECES METALLIQUES EXPOSEES

BRANCHER A UNE TERRE CONNUE

AVIS POUR LA SECURITE

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LC-32D42U/LC-37D42U

iii

PRECAUTIONS FOR USING LEAD-FREE SOLDER

Employing lead-free solder

• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

Example:

Using lead-free wire solder

• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.

As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.

Soldering

• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition.

Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required.

If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.

When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

• Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.

PARTS CODE

PRICE RANK

PART

DELIVERY

DESCRIPTION

ZHNDAi123250E BL J φ0.3mm 250g (1roll) ZHNDAi126500E BK J φ0.6mm 500g (1roll) ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)

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LC-32D42U/LC-37D42U

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM

The HDCP-KEY ROM shall be protected and managed for its information inside. In servicing this ROM, therefore, take the following information protection/management measures.

1) When disposing of the component parts and PWBs, destruct the IC itself in a proper way.

(For repairing or replacing the component parts and PWBs as well as clearing those in stock)

2) In storing the component parts, protect and manage them against theft and disclosure.

(For storing the service parts, service units, etc.)

Applied part: HDCP-KEY ROM

IC8451 RH-IXB979WJQZY (updated ROM)

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LC-32D42U/LC-37D42U

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LC-32D42U/LC-37D42U

Service Manual

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

INPUT 6 15 pin mini D-sub, Audio in (Ø 3.5 mm jack)

Emergency alert messages via Cable are unreceivable.

The dimensional drawings are shown on the inside back cover.

As part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

LCD panel

Number of dots

TV Function

TV-standard (CCIR)

Receiving Channel

VHF/UHF

CATV

Digital Terrestrial Broadcast (8VSB)

Audio multiplex

Audio out

Terminals

Rear

INPUT 1

INPUT 2

INPUT 3

INPUT 4

INPUT 5

ANTENNA

DIGITAL AUDIO OUTPUT

OUTPUT

OSD language

Power Requirement

Power Consumption

Weight

Dimension

(W H D)

Operating temperature

3,147,264 dots (1366 768 3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-135ch (non-scrambled channel only)

2-69ch

BTSC System

10W 2

AV in, COMPONENT in

S-VIDEO in, AV in

Audio in, COMPONENT in

HDMI in with HDCP

Audio in, HDMI in with HDCP

75 Unbalance, F Type 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

Optical Digital audio output 1 (PCM/Dolby Digital)

Audio out

English/French/Spanish

AC 120 V, 60 Hz

32°F to 104°F (0°C to 40°C)

Item

Model: LC-32D42U

32" Advanced Super View & BLACK TFT LCD

with stand

w/o stand

with stand

175 W (0.95 W Standby with AC 120V)

36.4 lbs./16.5 kg

43.0 lbs./19.5 kg

/322313/64937/64inch

/322059/64353/64inch

+++

Digital cable

(64/256 QAM)

1-135ch (non-scrambled channel only)

Model: LC-37D42U

37" Advanced Super View & BLACK TFT LCD

185 W (0.95 W Standby with AC 120V)

43.0 lbs./19.5 kg

50.7 lbs./23.0 kg

/642527/321135/64inch

/642337/64353/64inch

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LC-32D42U/LC-37D42U

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LC-32D42U/LC-37D42U

Service Manual

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part names

POWER button

TV (Front)

Channel buttons

(CH /)

Volume buttons

(VOL /)

INPUT button

OPC indicator*

POWER indicator**

OPC sensor*

Remote control sensor

SLEEP indicator**

TV (Rear)

HDMI terminal (INPUT 4)

INPUT 3 terminals

AUDIO OUTPUT terminals

HDMI terminal (INPUT 5)

DIGITAL AUDIO OUTPUT terminal

Antenna/Cable in

INPUT 1 terminals

AC INPUT terminal

AUDIO terminals (INPUT 5)

INPUT 2 terminals

PC IN terminals (INPUT 6)

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LC-32D42U/LC-37D42U

2 – 2

114

11 23

13 27

Part names

1 TV POWER: Switch the TV power on or enters

standby mode.

2 DISPLAY: Display the channel information. 3 SOURCE POWER: Turns the power of the external

equipment on and off.

4 External equipment operational buttons: Operate

the external equipment.

50_9: Set the channel. 6 (DOT): 7 INPUT: Select a TV input source. (TV, INPUT 1,

INPUT 2, INPUT 3, INPUT 4, INPUT 5, INPUT 6)

8VOL/:Set the volume. 9 SURROUND: Select Surround settings.

10 FREEZE: Set the still image. Press again to return to

normal screen.

11 EXIT: Turn off the menu screen. 12 SLEEP: Set the sleep timer. 13 AUDIO: Selects the MTS/SAP or the audio mode

during multi-channel audio broadcasts.

14 FUNCTION: Switches the remote control for TV,

CBL/SAT, VCR, DVD and AUDIO operation. Indicator lights up for the current mode.

* To enter the code registration mode, you need to press FUNCTION and DISPLAY at the same time.

15 LIGHT : When pressed all buttons on the remote

control unit will light. The lighting will turn off if no operations are performed within about 5 seconds. This button is used for performing operations in lowlight situations.

16 VIEW MODE: Select the screen size.

17 ENT: Jumps to a channel after selecting with the 0_9

buttons.

18 FLASHBACK: Return to the previous channel or

external input mode.

19 CH / : Select the channel. 20 MUTE: Mute the sound. 21 MENU: Display the menu screen. 22 ////ENTER: Select a desired item on the

screen.

23 RETURN: Return to the previous menu screen. 24 FAVORITE CH

A, B, C, D: Select 4 preset favorite channels in 4

different categories. While watching, you can toggle the selected channels

by pressing A, B, C and D.

25 FAVORITE: Register favorite channel. 26 CC: Display captions from a closed-caption source.

27 AV MODE: Select an audio or video setting.

(When the input source is TV, INPUT 1, 2 or 3: STANDARD, MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC. When the input source is INPUT 4, 5 or 6: STANDARD, MOVIE, GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)

Remote control unit

NOTE

When using the remote control unit, point it at the TV.

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LC-32D42U/LC-37D42U

2 – 3

QUICK REFERENCE

1 3

Hex key

Screw

Insert the stand into the openings on the bottom of the TV.

Insert and tighten the 4 screws into the 4 holes on the rear of the TV.

Hex key

Screw

Soft cushion

NOTE

To detach the stand, perform the steps in reverse order.

Set the post for the stand unit onto the box.

Attach the base to the post. Insert and tighten the 5 screws into the 5

holes on the bottom of the base.

Confirm that there are 9 screws (all the same size) supplied with the TV.

Attaching the stand

Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal. Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.

CAUTION

Attach the stand in the correct direction. Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.

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LC-32D42U/LC-37D42U

2 – 4

Picture

Setup

Audio

Option

Power Control

Digital Setup

Picture

Setup

Audio

Option

Power Control

Basic adjustment settings

Menu items for TV/INPUT 1/2/3 Menu items for HDMI/PC-IN

Treble Bass Balance Surround

NOTE

Some menu items may not be displayed depending on the selected input source.

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

Color Temp. Black I/P Setting Film Mode 3D-Y/C Monochrome Range of OPC

Treble Bass Balance Surround

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

Color Temp. Black I/P Setting Film Mode Monochrome Range of OPC

No Signal Off No Operation Off

EZ Setup CH Setup Antenna Setup-DIGITAL Input Skip Input Label Parental CTRL Position Language Reset

Input Skip Input Signal Auto Sync. Input Label Fine Sync. Position Language Reset

Audio Only Digital Noise Reduction HDMI Setup Output Select

Audio Only Digital Noise Reduction Input Select Output Select Color System Caption Setup Program Title Display Favorite CH

Audio Setup

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LC-32D42U/LC-37D42U

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LC-32D42U/LC-37D42U

Service Manual

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

77/8(200)

/32(796)

/32(83) 353/64(97)

/64(500)

/64(243)

(343)

(531)2

(58)3

(85)

(589)

279/16(700.0)

(200)

(394.6)

Unit: inch/(mm)

LC-32D42U

LC-37D42U

77/8(200)

/64(293)

/8(117)

/64(913)

(377)

353/64(97)

(200)

(85)

2135/64(547)

/64(822.6)

(463.8)

(599)

(656)

(57)

2135/64(547)

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LC-32D42U/LC-37D42U

4 – 1

LC-32D42U/LC-37D42U

Service Manual

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

1. Remove the SD Card Cover.

2. Remove the 4 lock screws and detach the Stand Base Ass'y.

3. Remove the 9 lock screws, 5 lock screws and detach the Rear Cabinet.

Stand Base Ass'y

Rear Cabinet

Front Cabinet

SD Card Cover

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LC-32D42U/LC-37D42U

4 – 2

4. Remove the 2 lock screws and detach the Stand Assist Angle.

5. Remove the 4 lock screws and detach the Center Angle-L and R.

6. Remove the 1 lock screw and detach the Stand Area Cover.

7. Remove the 4 lock screws and detach the Stand Fix Angle.

8. Remove the 6 lock screws and detach the MAIN Shield.

MAIN Shield

Stand Fix Angle

Center Angle-L

Center Angle-R

Stand Area Cover

Stand Assist Angle

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LC-32D42U/LC-37D42U

4 – 3

9. Disconnect all the connectors from all the PWBs.

10.Remove the Top Cover Ass'y. Remove the 2 lock screws from the Top Cover Ass'y and detach the KEY Unit.

KEY Unit

Top Cover Ass'y

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LC-32D42U/LC-37D42U

4 – 4

11.Remove the 4 lock screws and detach the Speaker-L and R.

12.Remove the 2 lock screws and detach the R/C, LED Unit.

13.Remove the 5 lock screws and detach the Tray Chassis.

Tray Chassis

Speaker-L

R/C, LED Unit

Speaker-R

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LC-32D42U/LC-37D42U

4 – 5

14.Remove the 2 lock screws, 2 lock screws, 1 lock screw and detach the Jack Angle.

15.Remove the 6 lock screws and detach the POWER Unit.

16.Remove the 4 lock screws and detach the AV TERMINAL Unit.

17.Remove the 5 lock screws, 3 lock rivets and detach the MAIN PWB Radiator and MAIN Unit.

Jack Angle

POWER Unit

AV TERMINAL Unit

MAIN PWB Radiator

MAIN Unit

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LC-32D42U/LC-37D42U

4 – 6

18.Remove the 6 lock screws and detach the Rug Angle Top-L and R.

19.Remove the 7 lock screws and detach the Rug Angle Bottom-L and R. (LC-32D42U)

Remove the 6 lock screws and detach the Rug Angle Bottom-L and R. (LC-37D42U)

20.Remove the 3 lock screws and detach the Chassis Fix Angle Top.

21.Remove the LCD Panel Module.

Rug Angle Top-L

Rug Angle Top-R

Rug Angle Bottom-L

Rug Angle Bottom-R

Chassis Fix Angle Top

Rug Angle Top-L

Rug Angle Top-R

Rug Angle Bottom-L

Rug Angle Bottom-R

Chassis Fix Angle Top

LC-37D42U

LC-32D42U

Page 18

LC-32D42U/LC-37D42U

5 – 1

LC-32D42U/LC-37D42U

Service Manual

CHAPTER 5. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE

The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.

1. After replacement of any PWB unit and/or IC for repair, please note the following.

• When replacing the following units, make sure to prepare the new units loaded with updated software.

MAIN Unit: DUNTKD862FM04

AV TERMINAL Unit: DUNTKD999FM04

2. Upgrading of each microprocessor software

2.1. Software version upgrade

The model employs the following software.

•Main software

• Monitor microprocessor software

The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD memory card.

The followings are the procedures for upgrading, explained separately for each of the main software, the monitor microprocessor software.

2.2. Main software version upgrade

• SD memory card of 32MB or higher capacity

• PC running on Windows 98/98SE/ME/2000/XP operating system

• SD memory card reader/writer with USB connectivity.

• SD memory card formatting software

(Downloadable at http://panasonic.jp/support/audio/sd/download/sd_formatter_e.html)

To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start.

Follow the steps below and create the SD card for version upgrade.

1. Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format]. (When you have the drive options, select the drive where the SD card is inserted before you proceed.)

Caution: Never “POWER OFF” the unit when software upgrade is ongoing. Otherwise the system may be damaged beyond recovery.

Get ready before you start

Preparations

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LC-32D42U/LC-37D42U

5 – 2

2. When the formatting is over, the following window appears. Click [OK].

3. Click [Exit] to finish the formatting.

NOTE: When you are done, take out the SD card once to make sure it is finished, and then insert it again.

4. Copy the binary image file D42UAxxx.SDC (named temporarily) for version upgrade to the root directory (folder) of the SD card drive.

NOTE: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for version upgrade.

Now the SD card for version upgrade is ready.

5. Shut off the AC power (i.e. unplug the AC cord).

6. Insert the SD card for version upgrade (prepared as above) into the service socket located lower side from center at terminals, under DIGITAL AUDIO OUTPUT terminal in the rear of the unit, in a way that the cut corner of the SD card comes at the upper side.

NOTE: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.

7. Turn on the AC power (i.e. plug in the AC cord).

8. After the unit startup, the system upgrade screen as shown below appears within 15~30 seconds.

How to upgrade the software

< SYSTEM UPGRADE >

MAIN EEPROM

SD-CARD

MONITOR

26 %

NO DATA

100 %

DETECT

OLD Version

U0611093

NEW Version

U0611152

Boot Version

CFE-D42U 1.00

BOISE_D42U

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LC-32D42U/LC-37D42U

5 – 3

9. Even a single failure in the process will trigger the upgrade failure screen as shown below. The word “NG” changes to red for the item failed.

NOTE: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the hardware is troubled.

10.Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this screen. The version information appears after the upgrade is complete.

11.Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.

12.Now the software version upgrade is complete.

NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the main

software version information.

< UPGRADE FAILURE >

MAIN EEPROM

SD-CARD

MONITOR

NO DATA

100 %

DETECT

OLD Version

U0611093

NEW Version

U0611152

Boot Version

CFE-D42U 1.00

BOISE_D42U

< UPGRADE SUCCESS >

MAIN EEPROM

SD-CARD

MONITOR

100 %

NO DATA

100 %

DETECT

OLD Version

U0611093

NEW Version

U0611152

Boot Version

CFE-D42U 1.00

BOISE_D42U

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2.3. Monitor microprocessor software version upgrade

NOTE: If “Monitor version” in the process menu is “2.00M”, the monitor microprocessor software can not be rewritten (because IC2002 has been

replaced with the mask type).

Get ready the same items as listed in the “Main software version upgrade”.

Create the SD card for monitor microprocessor software version upgrade in the same manner as explained in the “Main software version upgrade”. Copy the binary image files D42UMxxx.SDC and D42UMxxx.BIN (named temporarily) for monitor microprocessor software version upgrade to the SD card drive.

1. Shut off the AC power to the unit (i.e. unplug the AC cord).

2. Insert the SD card for version upgrade (prepared as above) into the service socket located lower side from center at terminals, above S-VIDEO terminal in the rear of the unit, in a way that the cut corner of the SD card comes at the upper side.

NOTE: If the SD card is inserted in a wrong way, the card will go deep inside the unit beyond retrieval. Take due care to insert the SD card correctly.

3. Turn on the AC power (i.e. plug in the AC cord).

CAUTION: The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing,

never power off the unit. Otherwise the upgrade will fail and the system may have a serious damage beyond recovery (inability to start).

4. After the unit startup, the system upgrade screen as shown below appears within 15~30 seconds.

5. A failure in the process will trigger the upgrade failure screen. The word “NG” changes to red for the item failed.

NOTE: In the event of a failure, repeat the upgrading process. If the process repeatedly fails, it is likely that the hardware is troubled.

6. Upon completion of the whole process, the upgrade success screen as shown below appears. You can check the new software version on this screen. The version information appears after the upgrade is complete.

7. Shut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.

8. Now the software version upgrade is complete.

NOTE: When you are done with the software version upgrade, start the set, go to the top page of the adjustment process screen and check the mon-

itor microprocessor software version information.

2.4. Signal adjustment

1. Checking the Device

Before starting the adjustment, make sure the adjustment tool and signal generator are set for Sharp LCD US.

Checking the signal generator level adjustment (Set to the standard level.)

Get ready before you begin

Preparation

How to upgrade the software

• Composite signal : 0.714 Vp-p ± 0.02 Vp-p (from pedestal to white)

• 15K component signal : Y level : 0.714 Vp-p ± 0.02 Vp-p (from pedestal to white) PB, PR level : 0.7 Vp-p ± 0.02 Vp-p

• 33K component signal : Y level : 0.7 Vp-p ± 0.02 Vp-p (from pedestal to white) PB, PR level : 0.7 Vp-p ± 0.02 Vp-p

• Analog RGB signal : RGB level : 0.7 Vp-p ± 0.02 Vp-p (from pedestal to white)

MONITOR UPGRADE

Program

12%

1.00OLD Version

NEW Version 1.02

BOISE_D42U

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2. Process mode

3. Composite N358 signal/tuner adjustment

4. Component 15K signal adjustment

5. Component 33K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Process mode Enter the process adjustment mode using the process adjustment remote controller.

Adjustment item Adjustment conditions Adjustment procedure

1 Setting N358 signal

US-10ch

Feed the N358 color bar signal (75% color saturation) to VIDEO 1 input. Feed the RF signal (by use of US-10ch) to TUNER.

2 Automatic adjust-

ment execution

Move the cursor to [ N358 ALL ADJ] and press the [ENTER] key.

When [ N358 ALL ADJ OK] appears, the adjustment is complete.

Adjustment item Adjustment conditions Adjustment procedure

1 Setting 480i signal Feed the 100% color bar signal to VIDEO 1 COMPONENT input.

2 Automatic adjust-

ment execution

Move the cursor to [ COMP 15K MAIN ADJ] and press the [ENTER] key. When [ COMP 15K MAIN ADJ OK] appears, the adjustment is complete.

Adjustment item Adjustment conditions Adjustment procedure

1 Setting 1080i signal Feed the 100% color bar signal to VIDEO 1 COMPONENT input.

2 Automatic adjust-

ment execution

Move the cursor to [ HDTV ADJ] and press the [ENTER] key. When [ HDTV ADJ OK] appears, the adjustment is complete.

[Video input signal] [US-10ch]

100% white 0% black 100% white

75% Color saturation

0% black

480i 100% color bar

100% white

100% Color saturation

0% black

1080i 100% color bar

100% white

100% Color saturation

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6. Analog RGB signal adjustment

7. Tuner/V-Chip test

Adjustment item Adjustment conditions Adjustment procedure

1 Setting Analog RGB signal: XGA

(1024x768) 60Hz SYNC: HV separate

Feed the XGA 100% color bar signal to ANALOG RGB input.

2 Automatic adjust-

ment execution

Move the cursor to [ ANALOG RGB] and press the [ENTER] key.

When [ ANALOG RGB OK] appears, the adjustment is complete.

Adjustment item Adjustment conditions Adjustment procedure

1 Setting NTSC RF signal

US-7(AIR)ch

Feed the NTSC signal to RF ANTENNA input.

2 Automatic adjust-

ment execution

Move the cursor to [ TUNER VCHIP TEST (*07ch)] and press the [ENTER] key. (* Select the channel according to the RF signal.)

When [ A-OK(***.**)/VM-OK] appears in blue, the test is complete. (If [A-NG/VM-NG] appears in yellow or red, the test is incomplete.) Make sure a displacement of ± 0.0625 MHz from the center frequency is acceptable.

0% black

XGA 100% color bar

100% white

100% Color saturation

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2.5. White balance adjustment

1. White balance adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Setting For detailed adjustment procedure, refer to “Kameyama Model Integral Monitor WB

Adjustment Specifications V1.4”.

1) Make the following settings for the set. AV MODE: [DYNAMIC] Backlight: +16 Aging time: Min. 60 minutes

2) Connect the white balance adjustment tool to the set.

2 Automatic adjust-

ment execution

[Command] Process mode KRSW0001 KKT10037

Setting KYOF0000 OSDS0001 SBSL0016

Multi-point adjustment mode MSET0001

Adjustment value initialization MSET0004

Point 6 WBI60928 MG6G**** MG6B**** MG6R****

Point 5 WBI50800 MG5G**** MG5B**** MG5R****

[Adjustment procedure]

1) Using the remote controller, transmit the “monitor adjustment process” code.

2) Set the 6th point to the specified gradation level. With the strongest color being fixed, turn down the R, G and B settings to their reference levels.

3) Set the 5th point to the specified gradation level. Correct the G setting (800 x 6thpoint G setting / 928) (rounded off), and make the R and B settings to their reference levels.

4) Set the 4th point to the specified gradation level. Correct the G setting (680 x 6thpoint G setting / 928) (rounded off), and make the R and B settings to their reference levels.

5) Set the 3rd point to the specified gradation level. Correct the G setting (480 x 6thpoint G setting / 928) (rounded off), and make the R and B settings to their reference levels.

6) Set the 2nd point to the specified gradation level. Correct the G setting (232 x 6thpoint G setting / 928) (rounded off), and make the R and B settings to their reference levels.

7) Set the 1st point to the specified gradation level. Correct the G setting (184 x 6thpoint G setting / 928) (rounded off), and make the R and B settings to their reference levels.

8) With the MSET0003 command, write the adjustment values and turn off the AC power.

* Initial R, G and B settings at point 6: Gradation level set at 928 * Initial R, G and B settings at points 1 thru 5: Corrected G setting at each point (This is because the adjustment is made to achieve the same remainder of RGB setting / 4 at each point.) [Adjustment value]

•As per the “standard set” submitted by Engineering Department

“LC-32D42U” Teaching set [Adjustment reference] Instrument: Minolta CA-210 Engineering instrument

Point 4 Level Reference Adj. spec Ins. spec WBI40680 Point 6 928 X=0.272 ±0.0010 ±0.0020 MG4G**** y=0.277 MG4B**** Point 5 800 X=0.272 ±0.0010 ±0.0020 MG4R**** y=0.277

Point 4 680 X=0.272 ±0.0010 ±0.0020 Point 3 y=0.277 WBI30480 Point 3 480 X=0.272 ±0.0010 ±0.0020 MG3G**** y=0.277 MG3B**** Point 2 232 X=0.272 ±0.0020 ±0.0030 MG3R**** y=0.277

Point 1 184 X=0.272 ±0.0020 ±0.0030

y=0.277 Point 2 WBI20232 MG2G****

MG2B**** MG2R****

Note Set conditions for inspection

AV MODE: [DYNAMIC] (Reset)

Monochro: ON

Black: OFF

Color Temp: High

Back Light: +16

Aging Time: Min. 60 minutes Point 1 WBI10184 MG1G**** MG1B**** MG1R****

Writing MSET0003

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2.6. Key writing

1. EDID writing (Main PWB: QPWBXD862WJZZ, analog RGB input terminal / HDMI input terminal)

Adjustment item Adjustment conditions Adjustment procedure

1 Analog RGB

EDID writing

File version checking 1) Using the checker, write the EDID data for HDMI to

IC1505 that is mounted on the main PWB. TL1514: I2C clock, TL1515: I2C data TL1516: 5V, TL1517: GND TL1502: VCLK (Write: H, Read: V pulse)

2) In the analog RGB inspection, use a DDC-compatible device. If the EDID has not been written, the analog RGB input does not function normally.

2 HDMI EDID writ-

ing

Inspection mode File version checking

1) Using the checker, write the analog HDMI EDID data to IC1501 and IC1502 that are mounted on the main PWB. TL1508/1510: I2C clock, TL1509/1511: I2C data TL1512/1513: 5V, TL1519/1518: GND TL1534/1535: Write protection (H: Write, L: Write enable)

2) Write the data before the HDMI inspection with the checker. In the HDMI inspection, use a DDC-compatible device. If the EDID has not been written, the HDMI does not function normally.

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2. Adjustment sequence (adjustment according to the G adjustment value of gradation 6)

* Make sure the adjusting point gradations are correct since they are different for each model.

PC Set

Set the light level to MAX with the light control command (SBSL0016 for 45). SBSL0016

Setting is complete. OK

Multi point adjustment mode setting MSET0001

Multi point adjustment mode is set. OK

Initialize adjustment values. MSET0004

Initialization is done. OK

Adjustment gradation setting (point 6 = 236 gradation adjustment*) WBI60944

Adjust RGB to the target xy values. MG6RXXXX MG6GXXXX MG6BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * In order to adjust by reducing the value, set the strongest color as the fixed color. * The default adjustment value of RGB is the parameter value of the WBI6 command multiplied by 2.

Adjustment values are set. OK

Adjustment gradation setting (point 5 = 200 gradation adjustment*) WBI50800

Adjustment values are set. OK

Repeat until RGB become the target values.

Pattern display

Adjustment values are set. OK

Correction of G value MG5GXXXX When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with WBI5) x 2 x (the ratio).

Adjustment values are set. OK

Pattern display

The adjustment value is reflected in the image.

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PC Set

Adjust RB to the target xy values. MG5RXXXX MG5BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). *Gisfixed. * The default adjustment value of RGB is the parameter value of the WBI5 command multiplied by 2.

Adjustment values are set. OK

Repeat until RGB become the target values.

The adjustment value is reflected in the image.

Start measurement

Adjustment gradation setting (point 4 = 144 gradation adjustment*) WBI40576

Adjustment values are set. OK

Correction of G value MG4GXXXX When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with WBI4) x 2 x (the ratio).

Adjustment values are set. OK

Pattern display

Adjust RB to the target xy values. MG4RXXXX MG4BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). *Gisfixed. * The default adjustment value of RGB is the parameter value of

the WBI4 command multiplied by 2.

Adjustment values are set. OK

Repeat until RGB become the target values.

The adjustment value is reflected in the image.

Adjustment gradation setting (point 3 = 116 gradation adjustment*) WBI30464

Adjustment values are set. OK

Correction of G value MG3GXXXX When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with WBI3) x 2 x (the ratio).

Adjustment values are set. OK

Pattern display

Start measurement

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PC Set

Adjust RB to the target xy values. MG3RXXXX MG3BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the WBI3 command multiplied by 2.

Adjustment values are set. OK

Repeat until RGB become the target values.

The adjustment value is reflected in the image.

Adjustment gradation setting (point 2 = 66 gradation adjustment*) WBI20264

Adjustment values are set. OK

Correction of G value MG2GXXXX When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with WBI2) x 2 x (the ratio).

Adjustment values are set. OK

Pattern display

Start measurement

Adjust RB to the target xy values. MG2RXXXX MG2BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the WBI2 command multiplied by 2.

Adjustment values are set. OK

Repeat until RGB become the target values.

The adjustment value is reflected in the image.

Adjustment gradation setting (point 1 = 50 gradation adjustment*) WBI10200

Adjustment values are set. OK

Correction of G value MG1GXXXX When G is changed at gradation 6, calculate the ratio of the change and set the following value to XXXX: (the value set with WBI1) x 2 x (the ratio).

Adjustment values are set. OK

Pattern display

Start measurement

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2.7. Factory settings

After making the factory settings, pull off the AC cord.

NOTE: Do not turn on the power once the factory settings have been made. Otherwise the factory settings must be made again.

2.8. Software version

Change of software version is notified at a technical report.

* Main microprocessor

* Monitor microprocessor

* EDID data (HDMI/analog RGB)

Adjustment item Adjustment conditions Adjustment procedure

1 Factory settings Finally pull off the AC cord. • Move the cursor to the [INDUSTRY INIT (+Cause)] line.

Using the [VOL+/-] keys, set this item ON and press the [ENT] key. The version confirm window appears on the green screen. When [SUCCESS] appears at the top, the factory settings are complete. (If an error occurs. [ERROR] appears on the red screen.)

• Finally turn off the AC power.

The following settings are returned to the factory ones.

1) User settings

2) Channel data (broadcast frequencies, etc.)

3) Password setting

4) Operation time

5) Automatic installation flag

6) V-CHIP block setting

PC Set

Adjust RB to the target xy values. MG1RXXXX MG1BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of the WBI1 command multiplied by 2.

Adjustment values are set. OK

Repeat until RGB become the target values.

The adjustment value is reflected in the image.

Writing of adjusted values MSET0003

Deletion is complete. OK

Deleting adjustment patterns MSET0000

Writing is complete. OK

Start measurement

Completion of adjustment

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2.9. Menu list in process A mode

Page Line Item Explanation

1 MAIN Version Main microcomputer software version

BOOT Version Monitor Version Monitor microcomputer software version EQ DATA CHECKSUM Sound parameter checksum TEMPERATURE Read value of temperature sensor LAMP ERROR Number of lamp error NORMAL STANDBY CAUSE Reasons of standby at normal time ERROR STANDBY CAUSE Reasons of standby in the event of error

2 INDUSTRY INIT (+Cause) Initialization to factory settings (including clearing Standby Cause data)

INDUSTRY INIT Initialization to factory settings HOTELMODE Activate/deactivate the hotel mode Center Acutime Main microcomputer operating time RESET Reset main microcomputer operating time

Lamp error rest BacklightAcutime Backlight lighting time RESET Reset backlight lighting time LAMP ERROR RESET VIC XPOS x-coordinate for reading image data VIC YPOS y-coordinate for reading image data VIC COLOR Specification of color for reading image data VIC SIGNAL TYPE Specification of signal for reading image data VIC READ On/Off of image data read operation

3 N358 ALL ADJ Auto adjustment of NTSC and TUNER signals

N358 MAIN ADJ Auto adjustment of NTSC signal TUNER DAC ADJ Auto adjustment of TUNER N358 CONTRAST A_GAIN NTSC analog gain adjustment N358 CONTRAST D_GAIN NTSC digital gain adjustment TUNER A DAC TUNER DAC adjustment

4 TUNER VCHIP TEST(69ch) Execute TUNER TEST

TUNER VCHIP TEST(7ch) TUNER VCHIP TEST(10ch) TUNER VCHIP TEST(15ch)

5 COMP15K MAIN ADJ Auto adjustment of component 15k

COMP15K Y A_GAIN Component 15k Y analog gain adjustment COMP15K Cb A_GAIN Component 15k Cb analog gain adjustment COMP15K Cr A_GAIN Component 15k Cr analog gain adjustment COMP15K Y D_GAIN Component 15k Y digital gain adjustment COMP15K Cb D_GAIN Component 15k Cb digital gain adjustment COMP15K Cr D_GAIN Component 15k Cr digital gain adjustment COMP15K Y OFFSET Component 15k Y offset adjustment COMP15K Cb OFFSET Component 15k Cb offset adjustment COMP15K Cr OFFSET Component 15k Cr offset adjustment

6 HDTV ADJ HDTV auto adjustment

HDTV Y A_GAIN HDTV Y analog gain adjustment HDTV Cb A_GAIN HDTV Cb analog gain adjustment HDTV Cr A_GAIN HDTV Cr analog gain adjustment HDTV Y D_GAIN HDTV Y digital gain adjustment HDTV Cb D_GAIN HDTV Cb digital gain adjustment HDTV Cr D_GAIN HDTV Cr digital gain adjustment HDTV Y OFFSET HDTV Y offset adjustment HDTV Cb OFFSET HDTV Cb offset adjustment HDTV Cr OFFSET HDTV Cr offset adjustment

7 ANALOG RGB Analog RGB adjustment

R CUTOFF R CUTOFF adjustment value G CUTOFF G CUTOFF adjustment value B CUTOFF B CUTOFF adjustment value R DRIVE R DRIVE adjustment value

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7 G DRIVE G DRIVE adjustment value

B DRIVE B DRIVE adjustment value ICSC MODE Color space converter mode switching

8 MONITOR GAMMA IN 1 White balance adjustment IN-Point1

MONITOR GAMMA IN 2 White balance adjustment IN-Point2 MONITOR GAMMA IN 3 White balance adjustment IN-Point3 MONITOR GAMMA IN 4 White balance adjustment IN-Point4 MONITOR GAMMA IN 5 White balance adjustment IN-Point5 MONITOR GAMMA IN 6 White balance adjustment IN-Point6 GAMMA WRITE Write adjustment values GAMMA RESET Reset adjustment values

9 MONITOR GAMMA R 1 White balance adjustment OUT R-Point1

MONITOR GAMMA G 1 White balance adjustment OUT G-Point1 MONITOR GAMMA B 1 White balance adjustment OUT B-Point1 MONITOR GAMMA R 2 White balance adjustment OUT R-Point2 MONITOR GAMMA G 2 White balance adjustment OUT G-Point2 MONITOR GAMMA B 2 White balance adjustment OUT B-Point2 MONITOR GAMMA R 3 White balance adjustment OUT R-Point3 MONITOR GAMMA G 3 White balance adjustment OUT G-Point3 MONITOR GAMMA B 3 White balance adjustment OUT B-Point3 GAMMA WRITE Write adjustment values GAMMA RESET Reset adjustment values

10 MONITOR GAMMA R 4 White balance adjustment OUT R-Point4

MONITOR GAMMA G 4 White balance adjustment OUT G-Point4 MONITOR GAMMA B 4 White balance adjustment OUT B-Point4 MONITOR GAMMA R 5 White balance adjustment OUT R-Point5 MONITOR GAMMA G 5 White balance adjustment OUT G-Point5 MONITOR GAMMA B 5 White balance adjustment OUT B-Point5 MONITOR GAMMA R 6 White balance adjustment OUT R-Point6 MONITOR GAMMA G 6 White balance adjustment OUT G-Point6 MONITOR GAMMA B 6 White balance adjustment OUT B-Point6 GAMMA WRITE Write adjustment values GAMMA RESET Reset adjustment values

11 AUDIO SWITCH Select sound parameter data (ROM/EEP)

FORCED FLAT MODE AIN1_ADC_VOLUME AIN2_ADC_VOLUME AIN3_ADC_VOLUME AIN4_ADC_VOLUME AIN5_ADC_VOLUME AIN6_ADC_VOLUME

12 INPUT_MIXER_GAIN_SP

INPUT_MIXER_GAIN_HP INPUT_MIXER_GAIN_EXT INPUT_MIXER_GAIN_EXT_HP OUTPUT_MIXER_GAIN SUB_VOLUME_FLAT SUB_VOLUME_EQ SUB_VOLUME_AUDYSSEY

13 PEQ1_F0

PEQ1_Q PEQ1_GAIN PEQ2_F0 PEQ2_Q PEQ2_GAIN PEQ3_F0 PEQ3_Q PEQ3_GAIN

Page Line Item Explanation

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13 PEQ4_F0

PEQ4_Q PEQ4_GAIN

14 PEQ5_F0

PEQ5_Q PEQ5_GAIN VIRTUALIZER_LEVEL BASS_BOOST_LEVEL SLICER_LEVEL HPF_SW HPF_LR LPF_SW SW_MIXING_LEVEL

15 BRIGHTNESS DA0

BRIGHTNESS DA1 BRIGHTNESS DA2 BRIGHTNESS DA3 BRIGHTNESS DA4 BRIGHTNESS DA5 BRIGHTNESS DA6 BRIGHTNESS DA7 BRIGHTNESS DA8 BRIGHTNESS DA9 BRIGHTNESS DA10 BRIGHTNESS DA11

16 BRIGHTNESS DA12

BRIGHTNESS DA13 BRIGHTNESS DA14 BRIGHTNESS DA15 BRIGHTNESS DA16 BRIGHTNESS DA17 BRIGHTNESS DA18 BRIGHTNESS DA19 BRIGHTNESS DA20 BRIGHTNESS DA21 BRIGHTNESS DA22

17 BRIGHTNESS DA23

BRIGHTNESS DA24 BRIGHTNESS DA25 BRIGHTNESS DA26 BRIGHTNESS DA27 BRIGHTNESS DA28 BRIGHTNESS DA29 BRIGHTNESS DA30 BRIGHTNESS DA31 BRIGHTNESS DA32

18 OPC33 ADLEVEL 0

OPC33 ADLEVEL 1 OPC33 ADLEVEL 2 OPC33 ADLEVEL 3 OPC33 ADLEVEL 4 OPC33 ADLEVEL 5 OPC33 ADLEVEL 6 OPC33 ADLEVEL 7 OPC33 ADLEVEL 8 OPC33 ADLEVEL 9 OPC33 ADLEVEL 10 OPC33 ADLEVEL 11

Page Line Item Explanation

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19 OPC33 ADLEVEL 12

OPC33 ADLEVEL 13 OPC33 ADLEVEL 14 OPC33 ADLEVEL 15 OPC33 ADLEVEL 16 OPC33 ADLEVEL 17 OPC33 ADLEVEL 18 OPC33 ADLEVEL 19 OPC33 ADLEVEL 20 OPC33 ADLEVEL 21 OPC33 ADLEVEL 22

20 OPC33 ADLEVEL 23

OPC33 ADLEVEL 24 OPC33 ADLEVEL 25 OPC33 ADLEVEL 26 OPC33 ADLEVEL 27 OPC33 ADLEVEL 28 OPC33 ADLEVEL 29 OPC33 ADLEVEL 30 OPC33 ADLEVEL 31

21 V6 OS THERMO 1

V6 OS THERMO 2 V6 OS THERMO 3 V6 OS THERMO 4 V6 OS THERMO 5 V6 OS THERMO 6 V6 OS THERMO 7

22 V5 OS THERMO 1

V5 OS THERMO 2 V5 OS THERMO 3 V5 OS THERMO 4 V5 OS THERMO 5 V5 OS THERMO 6 V5 OS THERMO 7

23 MONITOR TIME OUT

MONITOR MAX TEMP MONITOR STANDBY CAUSE

24 LCD TEST PATTERN

25 KEY LOCK(1217)

KOUTEI AREA ALL CLEAR A MODE AREA CLEAR BACKUP AREA CLEAR B MODE AREA CLEAR EXECUTION

26 EEP SAVE

EEP RECOVER STANDBY CAUSE RESET WB TEACHING MODE

Page Line Item Explanation

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2.10. Code list for Standby Cause

Code Indication Description

1 RC_STNBY /* Standby set by remote control */ 2 E_CCKMVT /* Abnormal voltage of CCKM line detected */ 5 OUT_OF_R “/* While a PC display is on, unspecified input continued long time. */” 6 NO_OPERT /* Off caused by no operation */ 7 NO_SIGNA /* Off caused by no signal */ 8 PC_MODE1 /* Set by the PC power management mode 1 */ 9 PC_MODE2 /* Set by the PC power management mode 2 */ A SLEEP_TM /* Set by off timer */ B E_NOMONI /* Incompatible monitor is connected to the AVC center. */ C OFF_232C /* Set by the command from RS232C */ E AVC_TACT /* Set by the front switch at the AVC center */

F BSBOOKED /* The pre-set time has passed since TV was turned on from standby by the BS timer. */ 10 E_AVCFAN /* Fan failure at the AVC center */ 11 E_BSSUBM /* Communication failure with the BS sub microcomputer (Not used) */ 12 E_CVICIC /* CVIC failure */ 13 E_AVCTMP /* Abnormal temperature at the AVC center */ 14 E_1BITAU /* 1Bit-AMP failure */ 15 E_MONIPW /* Monitor main power failure detected */ 16 E_MONITR /* Monitor problem detected */ 17 E_FNLOCK /* Fan lock for North America */ 40 /* Failure in Digital Standby */

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LC-32D42U/LC-37D42U

Service Manual

CHAPTER 6. TROUBLE SHOOTING TABLE

[1] TROUBLE SHOOTING TABLE

No audio output during UHF/VHF reception

Is SIF output from the tuner (TU1101_Pin15) normal? NO Check the tuner and peripheral circuits.

YES Is input signal fed to pin 21 (SOUNDIF 1) of IC1401 (SIF Demodulator) normal?

NO Check the filter circuits (Q1102-3) and peripheral circuits.

YES Are audio signals from pins 29 and 30 (SC2_OUTL/R) of IC1401

to pins 51 and 52 of IC1404 (CODEC) normal?

NO Check between pins 29 and 30 (SC2_OUTL/R) of IC1401 and

pins 51 and 52 of IC1404 (CODEC).

YES Are audio outputs (A-OUT_L/R) of pins 38 and 39 of IC1404 normal?

Are the DSP_LRCK, DSP_BCKIN, DSP_SDIN1, DSP_MCLK, DSP_SDOUT1, DSP_SDOUT2 signals sent from IC1404 to IC1407 (DSP) normally?

YES

Check IC1404 and peripheral circuits.

Is audio input from pins 38 and 39 of IC1404 to pins 3 and 5 of IC2701(STEREO_AMP) normal?

NO Check the circuits between pins 38 and 39 of IC1404 and pins 3

and 5 of IC2701. (MUTE circuits: Q1307, Q1314, Q1313)

YES Is audio output from IC2701 normal? NO Check IC2701 and peripheral circuits.

YES Check the connector (P2703) of AV_UNIT and around the speakers.

No monitor audio output

Is monitor audio output set to “Variable”? YES Reset monitor audio output to “Fixed”.

Are audio output pins 40 and 41 of IC1404 (CODEC) normal? NO Check IC1404 and peripheral circuits.

YES Are audio output pins 7 and 1 of IC1408 (Buffer_AMP) normal? NO Check IC1408 and peripheral circuits.

YES Check between IC1408 and MONITOR OUTPUT terminal (J501, J502).

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No audio output from external input

<<HDMI>> [INPUT-4/INPUT5 (Digital audio mode)] Is digital audio signal (DTV_SPDIF) fed from pin E12 of IC8101 to pin 4 of IC1404? <<HDMI>> [INPUT-5 (Analog audio mode)] Is L-ch audio signal fed from pin 3 of input terminal J1501 to pin 57 of IC1404? Is R-ch audio signal fed from pin 2 of input terminal J1501 to pin 58 of IC1404? PCINPUT<<INPUT-6>> Is L-ch audio signal fed from pin 2 of input terminal J1502 to pin 55 of IC1404? Is R-ch audio signal fed from pin3 of input terminal J1502 to pin 56 of IC1404? <<INPUT-1>> Is L-ch audio signal fed from input terminal J505 to pin 12 of IC1405? Is R-ch audio signal fed from input terminal J505 to pin 1 of IC1405? <<INPUT-2>> <<INPUT-3>> Is L-ch audio signal fed from input terminal J509 to pin 14 of IC1405? Is L-ch audio signal fed from input terminal J508 to pin 15 of IC1405? Is R-ch audio signal fed from input terminal J509 to pin 5 of IC1405? Is R-ch audio signal fed from input terminal J508 to pin 2 of IC1405? Is L-ch audio fed from pin 13 of IC405 to pin 53 of IC1404?

Is R-ch audio fed from pin 3 of IC405 to pin 54 of IC1404?

YES

No audio output during digital broadcasting reception

Are the I2S signals DAKCK, SCLK, LRCK, and DATAOUT sent from pins B22, F13, E13 and F12 of IC8101 normally?

Check around IC8101 BCM3551.

YES

Are input signals of pins 24 (DAKCK), 11 (SCLK), 10 (LRCK), 32 (DATA) of IC1404 normal?

NO Check the circuits between pins B22, F13, E13 and F12 of IC8101

and pins 24, 11, 10 and 32 of IC1404.

YES Are audio signals from pins 29 and 30 (SC2_OUTL/R) of IC1404 to pins 27 and 25 of IC1407 (DSP) normal?

NO Check between pins 29 and 30 (SC2_OUTL/R) of IC1404 and pins

27 and 25 of IC1407 (DSP).

YES Are audio outputs (A-OUT_L/R) of pins 38 and 39 of IC1404 normal?

NO Are the LRCK, BICK, SDTO and SDTI signals sent from IC1404 to

IC1407 (DSP) normally?

YES

Check IC1403 and peripheral circuits.

Is audio input from pins 38 and 39 of IC1404 to pins 3 and 5 of IC2701(STEREO_AMP) normal?

NO Check the circuits between pins 38 and 39 of IC1404 and pins 3 and

5 of IC2701. (MUTE circuits: Q1307, Q1313, Q1314, Q1404)

YES Is audio output from IC2701 normal? NO Check IC2701 and peripheral circuits.

YES Check the connector (P2703) of AV_UNIT and around the speakers.

Page 37

LC-32D42U/LC-37D42U

6 – 3

<Component video signal input> No video output (1)

No video output from external input <<INPUT-1>> Select INPUT-1 and the input signal on the input switching menu

screen.

Is INPUT-1 selected on the input switching menu screen? NO When INPUT-1 cannot be selected since the characters INPUT-1

on the menu screen are gray.

YES

Is the video signal detection function normal? Check between J507 and pin 38 of IC501.

Is video signal fed to pin 21 of IC501 (AV SWITCH)? NO Check between J507 and pin 21 of IC501.

YES

Is video signal sent to pin 60 of IC501? NO Check IC501 (AV SWITCH) and peripheral circuits.

YES

Is video signal sent to pin 2 of IF_UNIT connector (FC_SC501)? NO Check between IC501 and SC501. (Q501, Q502, etc.)

YES Is video signal fed to pin 2 of MAIN_UNIT connector (FC_SC1101)?

NO Check the board-to-board cable “FC”.

YES Is video signal fed to pin K25 of IC8101 (Broadcom) via L.P.F. composed of Q2202 and Q2210?

NO Check between IC501 and IC3301. (Q2202, Q2210, etc.)

YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48

of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES Check LCD_CONTROL PWB.

Page 38

LC-32D42U/LC-37D42U

6 – 4

<Composite video signal/S-video signal input> No video output (2)

No video output from external input <<INPUT-2>> Select INPUT-2 and the input signal on the input switching menu

screen.

Is INPUT-2 selected on the input switching menu screen? NO When INPUT-2 cannot be selected since the characters INPUT-3

on the menu

YES

Is the video signal detection function normal? Check between J503 and pin 42 of IC501.

Is the S-video signal detection function normal? Check between J509 and pin 2 of IC501.

Is signal fed to each input terminal of IC501 (AV SWITCH)? <Composite video signal input>

Is video signal fed to pin 3 of IC501?

NO Check between J509 and pin 3 of IC501.

<S-video signal input> Are Y and C signals fed to pins 5 and 7 of IC501 respectively?

NO Check between J503 and pins 5 and 7 of IC501.

YES <Composite video signal input> Is video signal sent to pin 60 of IC501? <S-video signal input>

Are Y and C signals sent to pins 60 and 59 of IC501 respectively?

NO Check IC501 (AV SWITCH) and peripheral circuits.

YES <Composite video signal input> Is video signal sent to pin 2 of IF_UNIT connector (FC_SC501)?

<S-video signal input> Are Y and C signals sent to pins 2 and 4 of IF_UNIT connector (FC_SC501) respectively?

NO Check between IC501 and SC501. (Q501, Q502, Q503, Q504,

etc.)

YES <Composite video signal input>

Is video signal fed to pin 2 of MAIN_UNIT connector (FC_SC1101)? <S-video signal input> Are Y and C signals fed to pins 2 and 4 of MAIN_UNIT connector (FD_SC1101) respectively?

NO Check the board-to-board cable “FC”.

YES <Composite video signal input> Is video signal fed to pin K25 of IC8101 (Broadcom) via L.P.F.

composed of Q2202 and Q2210? <S-video signal input> Are Y and C signals fed to pins k25 and L24 of IC8101 (Broadcom) via L.P.F. composed of Q2202 and Q2210 and via L.P.F. composed of Q2203 and Q2211 respectively?

NO Check between SC1101 and IC3301. (Q2202, Q2210, etc.)/

(Q2203, Q2211, etc.)

YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES Check LCD_CONTROL PWB.

Page 39

LC-32D42U/LC-37D42U

6 – 5

No video output during ANALOG broadcasting reception

Is video signal sent to output terminal pin 13 of tuner (TU1101)? NO Check or replace the tuner's peripheral circuits.

YES Is video signal fed to pin 7 of IC1103 (LEVEL ADJ)? NO Is control signal for level adjustment fed from pin 1 of IC1104 to

pin 6 of IC1103?

YES

Check or replace IC1104 (CONTROL) and peripheral circuits.

Is video signal fed to pin R26 of IC8101 (Broadcom) via L.P.F. composed of Q2204 and Q2208?

YES

Check between IC1103 and IC3301. (Q2204, Q2208, etc.)

Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES Check LCD_CONTROL PWB.

Page 40

LC-32D42U/LC-37D42U

6 – 6

<Component video signal input> No video output (3)

No video output from external input <<INPUT-1>>

Is INPUT-1 selected on the input switching menu screen? NO Select INPUT-1 and the input signal on the input switching menu

screen.

YES

When INPUT-1 cannot be selected since the characters INPUT-1 on the menu screen are gray.

Is the component video signal detection function normal? Check between 6 pin of J507 and pin 38 of IC501.

Are component video signals fed to pins 21, 23 and 25 (Y, PB and PR) of IC501(AV SWITCH)?

NO Check between J507 and each input pin of IC501.

YES Are Y, PB and PR signals sent to pins 60, 59 and 58 of IC501 respectively?

NO Check IC501 and peripheral circuits.

YES Are component video signals sent to pins 2, 4 and 6 of IF_UNIT

connector (FC_SC501)?

NO Check between IC501 and SC501. (Q501-Q506, etc.)

YES Are component video signals fed to pins 2, 4 and 6 of MAIN_UNIT connector (FC_SC1101)?

NO Check the board-to-board cable “FC”.

YES Are Y, Pb and Pr signals fed to pins L26, J25, J26 of IC8101 (Broadcom) respectively?

NO Check between SC1101 and IC8801. (Q2210, Q2211, Q2212,

etc.)

YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48

of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES Check LCD_CONTROL PWB.

Page 41

LC-32D42U/LC-37D42U

6 – 7

No video output from HDMI input (INPUT4)

INPUT4 Are signals fed from HDMI (SC1501) connector to input terminals H_RX0± (pins 70 and 71), H_RX1± (pins 73 and 74), H_RX2±

(pins 76 and 77) and H_RXC± (pins 67 and 68) of IC1507 (TMDS_SW)?

Is IC1501 (E

PROM) accessed with I2C when connecting HDMI

device and is DDC_I2C_CLOCK/DATA data read out?

YES

NO Check IC1501 and peripheral circuits. Are cables connected securely?

Check the setting of HDMI device.

Are signals fed from IC1507 (TMDS_SW) to input terminals H_RX0± (pins B19 and A19), H_RX1± (pins A18 and B18), H_RX2± (pins D18 and C18) and H_RXC± (pins C19 and D19) of IC8101 (Broadcom)?

NO Check IC1507 (TMDS_SW) and peripheral circuits.

For INPUT3, pin 21 is Low and pin 22 is High.

YES Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES Check LCD_CONTROL PWB.

When using an old HDMI transmission device, some video formats cannot be selected or no sound is heard. Since this model conforms to the latest HDMI standard, the HDMI transmission device does not recognize the data of the latest version correctly. It is necessary to upgrade its firmware. Download the latest firmware from the web site of each manufacturer, or contact the customer service center of each manufacturer.

Page 42

LC-32D42U/LC-37D42U

6 – 8

No video output from HDMI input (INPUT5)

INPUT5 Are signals fed from HDMI (SC1502) connector to input terminals H_RX0± (pins 8 and 9), H_RX1± (pins 11 and 12, H_RX2± (pins

14 and 15) and H_RXC± (pins 5 and 6) of IC1507 (TMDS_SW)?

Is IC1502 (E

PROM) accessed with I2C when connecting HDMI

device and is DDC_I2C _CLOCK/DATA data read out?

YES

NO Check IC1502 and peripheral circuits. Are cables connected securely?

Check the setting of HDMI device.

Are signals fed from IC1507 (TMDS_SW) to input terminals H_RX0± (pins B19 and A19), H_RX1± (pins A18 and B18), H_RX2± (pins D18 and C18) and H_RXC± (pins C19 and D19) of IC8101?

NO Check IC1507 (TMDS_SW) and peripheral circuits.

For INPUT5, pin 21 is High.

YES

Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 ~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

NO Check IC8101 and peripheral circuits.

YES

Check LCD_CONTROL PWB.

Page 43

LC-32D42U/LC-37D42U

6 – 9

No video output from PC input (INPUT 6)

DIGITAL mode Analog mode IS IC1505 (E2PROM) accessed with I2C when connecting PC and is DDC_I2C_CLOCK/DATA data read out?

Are signal fed from pins 1, 2, 3 (Analog-R/G/B), and 13, 14 (H Sync/V Sync) of input terminal (SC1503) to pins 11, 10, 8, 2, 3 of IC3304 (A/DC)?

YES

NO Check IC1505 and peripheral circuits. Are cable connected securely?

Check peripheral circuits of IC3304.

Check the setting of PC.

Are signals from pins 83~76, 62~55, 50~43, 71~68. (DATA0~23, VSYNC, HSYNC, DE, CLK) of IC3304 (ADC) to pins B23, A23, D22, C22, E23, A25, D23, B24, F22, A24, C23, E22, D17, F18, E18, F17, E17, C17, B17, A17, C16, D16, F16, E16 of IC8101?

YES

Check connection of IC3304 and IC8101.

Are digital video (LVDS) signals sent from pins 37-42 and 45-48 of IC2602?

NO Check IC2602 and peripheral circuits.

Are digital video (COMOS) signal sent from IC8101 (DVODATA 0 > 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?

Check IC8101 and peripheral circuits.

YES

Check LCD_CONTROL PWB.

[FRONT-END SECTION] Digital broadcasting cannot be received.

Are IF_OUT_P/N signal send from pin (20), (19) of TU1101 respectively?

YES Are signal fed to pins U25, U26 of

IC8101?

YES Check IC8101 and its peripheral cir-

cuits.

NO NO

Check the TU1101. Check between TU1101 and

IC8101 (C1104, C1141, etc).

Page 44

LC-32D42U/LC-37D42U

6 – 10

LED flashing timing chart for error notification

250ms

1sec

1) Red power LED Remarks

Remarks

Error type Power red LED operation (1 cycle)

Pins are monitor microprocessor pins.

H: On

Lamp failure

Flashes once: Fast

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

Refer to "Power failure details".

Power failure

Flashes twice

communication failure

Refer to "Communication failure details".

with main CPU

Communication line failure or main CPU communication failure > Check debug statements for the main CPU.

Flashes 3 times

Vsync

failure

Flashes 4 times

Monitor temperature failure

Flashes 5 times

2) Power failure details (Power LED flashes twice and OPC LED flashes)

Pins are monitor microprocessor pins unless otherwise specified.

13V/UR10V failure

Flashes once

Main 3.3V failure

Flashes twice

UR6V failure

Flashes 3 times

Digital 3.3V failure

Flashes 4 times

Panel 5V failure

Flashes 5 times

Main failure

Flashes 7 times

3) Communication failure details (Power LED flashes 3 times and OPC LED flash

Initial communication

reception failure

Flashes once

Time-out setting reception failure

Start-up confirmation reception failure

Flashes twice

Regular communication failure

Flashes 3 times

The details are displayed in "ERROR STANDBY CAUSE" on page 1 of process A mode for the main microprocessor.

Initial communication from the main CPU is not received. (After canceling the reset, request for the monitor model No. is not received.)

ψ Communication line failure or main CPU start-up failure

Time-out setting and start-up mode change cannot be received from the main CPU. (Start-up communication until time-out setting and start-up mode change is not received.)

Basically, communication logs are analyzed by a bus monitor or debug print logs are analyzed.

ψ Main CPU start-up failure or monitor microprocessor's reception failure

Regular communication that is performed at 1 second intervals in the normal operation is interrupted.

ψ Main CPU operation failure or monitor microprocessor's reception failure

L_FL_ERR (pin 73): Abnormal L. Confirmed after 5 consecutive detections at 1 second intervals (detected only when the backlight is on).

Note that after five detection counts, the lamp cannot be activated except in the monitoring process. (For the first time, only the inverter is reset, and error OFF is not activated)

Accumulated counts are cleared to 0 when the corresponding setting in the process A is made, when the power is turned on with [CH_DOWN] and [VOL_UP] on the unit down or after continuous illumination for 3 minutes.

Main microprocessor detection error (FAN error, 1bitAMP error, etc.㧕

If error is detected during operation, error standby is activated by polling.

DET_PNL5V (pin 58): Abnormal (L). Panel power is not applied.

If error is detected during operation, error standby is activated by polling.

EU_POW

PS_ON

PANEL_POW

D_POW

If error is detected during operation, error standby is activated by polling.

DET_6V (pin 56): Abnormal 㧔L). UR6V is not applied.

(MONITOR MAX TEMP on process A mode: Change of temperature failure AD value): Thermistor

DET_D3V3 (pin 59): Abnormal 㧔L). Digital 3.3V is not applied.

If error is detected during operation, error standby is activated by polling.

AC_DET (pin 16): Abnormal (L), DET_10V (pin 57). Main converter 13V/UR10V is not applied.

If error is detected during operation, the power is turned on again by interrupt handling (instantaneous blackout processing).

DET_3V3 (pin 59): Abnormal (L). Main power 3.3V is not applied.

VSYNC (pin 48) failure (uninput). Trident_IC operation failure.

Detected during operation (interruption)

If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD of AVC (flashes in red in the lower right screen).

If the panel temperature is 60°C or more for 25 seconds or more in a row, error standby is activated.

Page 45

LC-32D42U/LC-37D42U

7 – 1

LC-32D42U/LC-37D42U

Service Manual

CHAPTER 7. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS

• IC8101 (RH-iXB870WJQZQ)

This IC is a system LSI with the following function.

A cable, ground wave receiver, NTSC decoder, HDMI receiver, transport processor, MPEG video processor, digital audio decoder, analog video processor, graphics processor, MLPS processor, and Peripheral controller.

Page 46

LC-32D42U/LC-37D42U

8 – 1

LC-32D42U/LC-37D42U

Service Manual

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM

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Page 47

LC-32D42U/LC-37D42U

8 – 2

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Page 48

LC-32D42U/LC-37D42U

8 – 3

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Page 50

LC-32D42U/LC-37D42U

9 – 1

LC-32D42U/LC-37D42U

Service Manual

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN Unit

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MAIN Unit (Side-A)

Page 51

LC-32D42U/LC-37D42U

9 – 2

10 11 12 13 14 15 16 17 18 19

Page 52

LC-32D42U/LC-37D42U

9 – 3

12345678910

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Page 53

LC-32D42U/LC-37D42U

9 – 4

10 11 12 13 14 15 16 17 18 19

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Page 54

LC-32D42U/LC-37D42U

9 – 5

12345678910

MAIN Unit (Side-B)

Page 55

LC-32D42U/LC-37D42U

9 – 6

10 11 12 13 14 15 16 17 18 19

Page 56

LC-32D42U/LC-37D42U

9 – 7

12345678910

MAIN Unit (Side-B Chip)

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R9218

TL9217

R9214

TL9231

TL9219

TL9216

TL9215

R9219

R2018

TL9230

TL9229

TL9214

R2020

TL9228

TL9213

X2001

TL9227

TL9212

R2079

TL9226

TL9211

R9217

R9213

TL9225

R2078

X2002

TL9220

TL9209

TL9210

R2026

R2027

R2028

R2034

R2036

R2049

TL2009

R2067

TL2006

R2047

C2016

R2046

R2048

R2003

R2039

R2071

R2050

R2070

R2016

C2010

Q2006

Q2001

C2002

C2001

R2007

R2040

Q2007

R2035

IC2001

R2052

C2014

C2012

IC2008

R2076

R2051

C2003

C2015

R2017

R2023

R2024

C2008

TL2007

C2026

R2030

C2005

R2009

R2038

R2037

R2012

R2056

C2004

TL2012

TL2001

R2008

R2019

IC2002

R2055

TL2008

R2022

R2015

R2054

R2021

R2042

R2014

R2045

R2032

R2033

R2002

R2031

C2030

Q2002

C1102

R2057

IC2007

R2043

IC2009

TL2010

C2023

R2004

Q2003

TL2014

R2029

R2058

R2069

C2024

R2011

C2018

TL2013

R2063

C2017

R2005

IC1105

R2059

R2062

R2013

R2053

TL2011

R2066

C2022

IC2006

IC2003

R2060

R2061

C1104

R2064

C2019

C1108

C2021

R2065

R2044

C2013

C2020

TL8456

TL8451

C2025

IC2004

TL9105

IC2005

IC1101

TL9103

TL9102

TL9101

C1103

C1105

R2006

R2001

TL1102

R8701

R8712

R8714

R8715

R8716

R8717

R8718

R1136

TL1144

TL1138

TL1140

TL1142

TL1127

TL1147

TL1151

TL1156

TL1158

TL1160

TL1162

TL1168

TL1171

TL1173

TL1170

TH2001

TL1137

TL1139

TL1141

TL1143

TL1145

TL1149

TL1153

TL1155

TL1157

TL1159

TL1161

TL1163

TL1169

TL1172

TL1174

TL1301

TL1305

TL1321

TL1326

TL1324

TL1319

TL1176

TL1320

TL1318

TL1329

TL1327

TL1325

TL1331

TL1316

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TL1322

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R1330

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Q1313

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R9712

R9713

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TL9601

TL9717

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TL9711

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IC9601

TL9702

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FB9713

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TL9712

IC9705

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TL9706

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IC1402

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IC1301

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C1304

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C1314

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R1321

TL1315

FD2

Page 57

LC-32D42U/LC-37D42U

9 – 8

10 11 12 13 14 15 16 17 18 19

TL9332

539

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TL9334

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C2616

R2616

R2615

TL2622

Page 58

LC-32D42U/LC-37D42U

9 – 9

[2] AV TERMINAL Unit

123456

AV TERMINAL Unit (Side-A)

Page 59

LC-32D42U/LC-37D42U

9 – 10

123456

AV TERMINAL Unit (Side-A Chip)

k001

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R661

C511

C601

C585

FB517

R530

Q521

R646

C517

R653

Q517

C558

R543

R647

R507

C504

R508

C513

R656

C592

R540

Q519

R599

Q518

R648

R606

D508

R535

C561

C522

C594

R655

R651

R649

R650

R652

R531

FB518

C597

D506

C518

IC504

J503

FB519

C519

R533

R534

LUG502

C598

C596

D501

R638

C581

R623

Q513

R640

R637

R628

R639

Q514

C549

Q512

Q515

R511

R625

R624

R627

C550

R630

C506

R629

R631

C559

D520

R636

R635

Q511

R626

Q510

R632

C582

FB506

R621

C580

R633

R514

R634

R504

R620

R503

R546

R545

R547

R553

R552

R551

D503

FB521

C509

P504

R622

P501

FB524

C539

FB502

FB522

C531

IC502

FB525 FB526

C600

C599

R665

C595

C593

R664

R600

SC502

C590

R562

C591

R663

C589

C584

R662

R598

R574

R573

R580

R579

R586

SC501

R585

C565

C568

C566

C2749

R2725

R2724

D2703

P2704

C2718

LUG2702

D2701

C2717

C2744

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[3] R/C, LED Unit

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R/C, LED Unit (Side-A) R/C, LED Unit (Side-A Chip)

P101

C107

RMC101

SLD101

R132

R101

D101

IC101

C104

C102

R135

C105 R136

R117

Q105

Q104

R138

R102

D103

R110 R105

R137 R108

Q103

R109

Q102

R106 R104 R107

R123

D114

Q106

R121

R126

D113

Q107

R124

R111

R112

D115

R122

R114

R127

R113

C106

J101

R115

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[4] KEY Unit

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D155

S157

P151

S153

S151

D151

R151

R152

S152

S154

D152

R153

S155

KEY Unit (Side-A) KEY Unit (Side-A Chip)

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LC-32D42U/LC-37D42U

Service Manual

CHAPTER 10. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM

1. VOLTAGE MEASUREMENT CONDITION:

1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

2. INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

1) The unit of resistance "Ω" is omitted.

(K=kΩ=1000Ω, M=MΩ).

2) All resistors are ± 5%, unless otherwise noted.

(K= ± 10%, F= ± 1%, D= ± 0.5%)

3) All resistors are 1/16W, unless otherwise noted.

CAPACITOR

1) All capacitors are µF, unless otherwise noted.

(P=pF=µµF).

2) All capacitors are 50V, unless otherwise noted.

CAUTION:

This circuit diagram is original one, therefore there may be a slight difference from yours.

SAFETY NOTES:

1) DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS.

2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH " " ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.

AVIS DE SECURITE IMPORTANT:

LES PIECES MARQUEES " " ( ) SONT IMPORTANTES POUR MAINTENIR LA SECURITE DE L'APPAREIL. NE REMPLACER CES PIEDES QUE PAR DES PIECES DONT LE NUMERO EST SPECIFIE POUR MAINTENIR LA SECURITE ET PROTEGER LE BON FONCTIONNEMENT DE L'APPAREIL.

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[2] R/C, LED Unit

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EES2!tjef Evnqjoh!sftjtups

EES3!tjef

Evnqjoh!sftjtups

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