SHARP LC3237GP1U, LC-32GP1U, LC-37GP1U Service Manual

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LC-32GP1U/LC-37GP1U 1st

SERVICE MANUAL

No. SY6A5LC32GP1U

LCD COLOR TELEVISION

LC-32GP1U

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

CHAPTER 1. SPECIFICATIONS

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

CHAPTER 2. OPERATION MANUAL

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

CHAPTER 3. DIMENSIONS

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

CHAPTER 4. REMOVING OF MAJOR PARTS

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

CHAPTER 5. ADJUSTMENT

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

LC-37GP1U

32GP1U)........................................................8-1

[2] OVERALL WIRING DIAGRAM (LC-

37GP1U)........................................................8-3

[3] SYSTEM BLOCK DIAGRAM.........................8-5

[4] MAIN BLOCK DIAGRAM...............................8-7

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

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

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

[3] R/C, LED Unit ..............................................9-15

[4] KEY Unit ......................................................9-16

[5] GAME Unit...................................................9-17

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] TERMINAL Unit .........................................10-49

[5] GAME Unit.................................................10-53

[6] KEY Unit ....................................................10-55

CHAPTER 6. TROUBLE SHOOTING TABLE

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

CHAPTER 7. MAJOR IC INFORMATIONS

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

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM (LC-

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-32GP1U/LC-37GP1U 1st

SAFETY PRECAUTION

Service Manual

IMPORTANT SERVICE SAFETY PRECAUTION

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

WARNING

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

2. Disconnect AC power before servicing.

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

F701 (250V 8A) F4702 (250V 4A)

• 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.

DVM

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.

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

TO EXPOSED METAL PARTS

AC SCALE

1.5k ohm 10W

0.15µF

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

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.

Page 3

LC-32GP1U/LC-37GP1U 1st

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

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

•

AVERTISSEMENT

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

Débrancher le récepteur avant toute réparation.

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

F701 (250V 8A) F4702 (250V 4A)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

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

Inspecter tous les faisceaux de câbles pour s'assurer que les fils

3. 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.

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

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.

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LC-32GP1U/LC-37GP1U 1st

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:

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

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

PARTS CODE

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

PRICE RANK

PART

DELIVERY

DESCRIPTION

iii

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LC-32GP1U/LC-37GP1U 1st

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

LC-32GP1U/LC-37GP1U 1st

Service Manual

Item

LCD panel

Number of dots

TV Function

TV-standard (CCIR)

Receiving Channel

Audio multiplex

Audio out

Terminals

Side

Rear

VHF/UHF

CATV

Digital Terrestrial Broadcast (8VSB)

Digital cable (64/256 QAM)

INPUT 1

INPUT 4

INPUT 2

INPUT 3

INPUT 5

32" Advanced Super View & BLACK TFT LCD

6,220,800 dots (1920 1080 3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-135ch (non-scrambled channel only)

2-69ch

1-135ch (non-scrambled channel only)

BTSC System

10W 2

AV in, COMPONENT in (Recommend to connect game console)

HDMI in with HDCP (Recommend to connect game console)

S-VIDEO in, AV in

Audio in, COMPONENT in

HDMI in with HDCP

Model: LC-32GP1U



Model: LC-37GP1U

37" Advanced Super View & BLACK TFT LCD



INPUT 6 Audio in, HDMI in with HDCP

INPUT 7

DIGITAL AUDIO OUTPUT

OUTPUT

SUBWOOFER PRE OUT

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

OSD language

Power Requirement

Power Consumption

Weight

TV + stand

TV only

Dimension (W H D)



TV + stand

TV only

Operating temperature

Emergency alert messages via Cable are unreceivable.

The dimensional drawings are shown on the inside back cover.

Audio in, DVI-I in with HDCP

Optical Digital audio output 1 (PCM/Dolby Digital)



Audio out

Monaural audio output



English/French/Spanish

AC120V,60Hz

165 W (0.9 W Standby with AC 120V)

44.1 lbs./20.0 kg

36.4 lbs./16.5 kg

/64239/32103/4inch



/642059/64353/64inch



32°F to 104°F (0°C to 40°C)

 



203 W (0.9 W Standby with AC 120V)

52.9 lbs./24.0 kg

44.1 lbs./20.0 kg

/16253/4111/2inch

/16235/8353/64inch



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.

1 – 1

Page 6

LC-32GP1U/LC-37GP1U 1st

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part names

TV (Front)

Service Manual

Remote control sensor

OPC sensor*

NOTE

*OPC: Optical Picture Control

TV (Rear/Side)

HDMI terminal (INPUT 5)

HDMI terminal (INPUT 6)

DVI-I terminal (INPUT 7)

DIGITAL AUDIO OUTPUT terminal

AUDIO terminal (INPUT 7)

AUDIO terminals (INPUT 6)

Antenna/Cable in

Channel buttons

(CH /)

Volume

buttons

(VOL /)

OPC indicator*

SLEEP indicator**

POWER indicator**

INPUT button

POWER button

HDMI terminal (INPUT 4)

INPUT 1 terminals

2 – 1

INPUT 3 terminals

INPUT 2 terminals

AUDIO OUTPUT terminals

SUBWOOFER PRE OUT

AC INPUT terminal

Page 7

Part names

LC-32GP1U/LC-37GP1U 1st

Remote control unit

115

2 3

7 8

1 TV POWER: Switch the TV power on or enters

standby.

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):

•

7GAME:Selects INPUT 1 or INPUT 4. 8 INPUT: Select a TV input source. (TV, INPUT 1,

INPUT 2, INPUT 3, INPUT 4, INPUT 5, INPUT 6, INPUT 7)

9VOL /:Set the volume. 10 SURROUND: Select Surround settings.

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

normal screen.

12 EXIT: Turn off the menu screen. 13 SLEEP: Set the sleep timer. 14 AUDIO: Selects the MTS/SAP or the audio mode

during multi-channel audio broadcasts.

15 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

DISPLAY at the same time.

and

12 24

14 28

NOTE

•

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

16 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.

17 VIEW MODE: Select the screen size.

18 ENT: Jumps to a channel after selecting with the

buttons.

19 FLASHBACK:Return to the previous channel or

external input mode.

20 CH / : Select the channel. 21 MUTE: Mute the sound. 22 MENU: Display the menu screen. 23 ////ENTER: Select a desired item on the

screen.

24 RETURN: Return to the previous menu screen. 25 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.

26 FAVORITE: Set the favorite channels. 27 CC: Display captions from a closed-caption source.

28 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, 6 or 7: STANDARD, MOVIE, GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC.)

0_9

2 – 2

Page 8

LC-32GP1U/LC-37GP1U 1st

Appendix

Removing the stand

Before detaching (or attaching) stand, unplug the AC cord from the AC INPUT terminal.

CAUTION

Do not remove the stand from the TV unless using an optional wall mount bracket to mount it.

•

Before attaching/detaching stand

Before performing work make sure to turn off the TV.

•

Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being

•

damaged.

Unfasten the four screws used to secure the stand in place.

NOTE

To attach the stand, perform the above steps in reverse order.

•

Hex key

Detach the stand from the TV. (Hold the stand so it will not drop from the edge of the base area.)

Setting the TV on the wall

CAUTION

This TV should be mounted on the wall only with the AN-37AG2 (SHARP) wall mount bracket. The use of other wall

•

mount brackets may result in an unstable installation and may cause serious injuries. Installing the TV requires special skill that should only be performed by qualified service personnel. Customers

•

should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting that results in accident or injury.

Using an optional bracket to mount the TV

You can ask a qualified service professional about using an optional AN-37AG2 bracket to mount the TV to the wall.

•

Carefully read the instructions that come with the bracket before beginning work.

•

Hanging on the wall

AN-37AG2 wall mount bracket. (See the bracket instructions for details.)

LC-32GP1U

LC-37GP1U

Vertical mounting

NOTE

Detach the cable clamps on the rear of the TV when using the optional mount bracket.

•

Due to the terminal configuration on this TV, when you wall-mount this model, make sure there is enough space between the

•

wall and the TV for the cables.

Angular mounting

About setting the TV angle

Model

Angle of TV

0/5/10°

2 – 3

Page 9

Appendix

Troubleshooting

LC-32GP1U/LC-37GP1U 1st

Problem

power

•

Unit cannot be operated.

Remote control unit does not

•

operate.

Picture is cut off/with sidebar

•

screen.

•

Strange color, light color, or color misalignment

Power is suddenly turned off.

•

Possible Solution

Check if you pressed TV POWER on the remote control unit. If the

•

indicator on the TV does not light up, press POWER on the TV. Is the AC cord disconnected?

•

Has the power been turned on?

•

External influences such as lightning, static electricity, may cause improper operation.In this case, operate the unit after first turning on the power of the TV or unplugging the AC cord and replugging it in after 1 or 2 minutes.

Is the FUNCTION set correctly? Set it to the TV setting position.

•

Are batteries inserted with polarity ( , ) aligned?

•

Are batteries worn out? (Replace with new batteries.)

•

Are you using it under strong or fluorescent lighting? -

•

Is a fluorescent light illuminated near the remote control sensor? -

•

Is the image position correct?

•

Are screen mode adjustments such as picture size made correctly?

•

Adjust the picture tone.

•

Is the room too bright? The picture may look dark in a room that is too bright.

•

Check the input signal setting.

Is the sleep timer set?

•

Check the power control settings.

•

The unit's internal temperature has increased. Remove any objects blocking vent or clean.

No picture

•

No sound

•

Is connection to other components correct?

•

Is correct input signal source selected after connection?

•

Is the correct input selected?

•

Is picture adjustment correct?

•

Is "On" selected in "Audio Only"?

•

Is a non-compatible signal being input?

Is the volume too low?

•

Is "Variable" selected in "Output Select"?

•

Have you pressed MUTE on the remote control unit?

•

Is "On" selected in "Subwoofer"?

•

Troubleshooting-Digital broadcasting

The error message about reception of broadcast

The example of an error message

displayed on a screen

•

Failed to receive broadcast.

No broadcast now.

•

Error code

•

E202

E203 Check the broadcast time in the program guide.

Check the antenna cable. Check that the antenna is correctly setup.

•

Possible Solution

Cautions regarding use in high and low temperature environments

When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed.

•

This is not a malfunction, and the unit will recover when the temperature returns to normal. Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a

•

heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction. Storage temperature: 4°F to 140°F ( 20°C to 60°C)

2 – 4

Page 10

LC-32GP1U/LC-37GP1U 1st

Preparation

Connecting a PC

When connecting to a PC with a DVI terminal. (INPUT 7)

NOTE

If you are connecting the TV to a PC with a DVI terminal, use a DVI cable (commercially available) instead of a RGB/DVI

•

conversion cable.

When connecting to a PC with an HDMI terminal. (INPUT 4, 5 or 6)

RGB/DVI Conversion cable

(commercially available)

Ø 3.5 mm stereo minijack cable

(commercially available)

Example

(commercially available)

NOTE

The HDMI terminals only support digital signal.

•

HDMI cable

PC compatibility chart

It is necessary to set the PC correctly to display XGA and WXGA signal.

PC Resolution Horizontal Frequency Vertical Frequency VESA Standard

70 Hz

60 Hz 72 Hz 75 Hz 56 Hz 60 Hz 72 Hz 75 Hz 60 Hz 70 Hz 75 Hz 60 Hz 60 Hz 60 Hz 60 Hz

*DVI input only.

720 x 400

VGA

XGA 1024 x 768

WXGA 1360 x 768

SXGA

SXGA *

UXGA*

640 x 480

800 x 600SVGA

1280 x 1024 1400 x 1050 1600 x 1200

31.5 kHz

37.9 kHz

37.5 kHz

35.1 kHz

37.9 kHz

48.1 kHz

46.9 kHz

48.4 kHz

56.5 kHz

60.0 kHz

47.7 kHz

64.0 kHz

75.0 kHz

O O O O O O O O O O O O O O

DDC is a registered trademark of Video Electronics Standards Association. Power Management is a registered trademark of Sun Microsystems, Inc. VGA and XGA are registered trademarks of International Business Machines Co., Inc.

2 – 5

Page 11

LC-32GP1U/LC-37GP1U 1st

Basic adjustment settings

Menu items for TV/INPUT 1/2/3 Menu items for HDMI/DVI

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

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

Reset

Treble Bass Balance Surround Subwoofer Reset

No Signal Off No Operation Off

Picture

Audio

Power Contr

Picture

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

Color Temp. Black Monochrome Film Mode Range of OPC

Reset

Audio

Treble Bass Balance Surround Subwoofer Reset

No Signal Off No Operation Off

Power Contr

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

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

Audio Setup

Setup

Option

Digital Setup

Setup

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

Option

Audio Only Digital Noise Reduction Input Select HDMI Setup Output Select

NOTE

Some menu items may not be displayed depending on the

•

selected input source.

2 – 6

Page 12

LC-32GP1U/LC-37GP1U 1st

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

Service Manual

LC-32GP1U

(591)

(200)

/ 2

(531)

(60)

(85)

275/8(701.4)

/64(

797)

77/8(200)

(396.1)

(344)

(88)

Unit: Inch/(mm)

/32(507)

353/

(97)

LC-37GP1U

(654)

(200)

/ 2

(600)

(54)

(85)

3225/64(822.6)

/16(919)

77/8(200)

(463.8)

(374)

437/

(116)

103/4(273)

/64(540)

(97)

3 – 1

/2(292)

Page 13

LC-32GP1U/LC-37GP1U 1st

CHAPTER 4. REMOVING OF MAJOR PARTS

Service Manual

[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, 4 lock screws and detach the Rear Cabinet.

SD Card Cover

LC-32GP1U/LC-37GP1U 1st

Front Cabinet

Stand Base Ass'y

Rear Cabinet

4 – 1

Page 14

LC-32GP1U/LC-37GP1U 1st

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

LC-32GP1U

Center Angle-R

Center Angle-L

LC-37GP1U

Center Angle-R

Center Angle-L

Stand Fix Angle

Stand Area Cover

Stand Assist Angle

LC-32GP1U

Stand Fix Angle

Stand Area Cover

Stand Assist Angle

LC-37GP1U

4 – 2

Page 15

LC-32GP1U/LC-37GP1U 1st

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.

Top Cover

[KM]

KEY Unit

[KM]

[GA]

[CN5](32GP1U) [CN4](37GP1U)

[LP]

[F-RCA wire]

[MA] [FC]

[SA]

[LV]

[LB]

[PH]

[PD]

[CN1]

[CN2](37GP1U)

[CN4](32GP1U) [CN3](37GP1U)

[CN2](32GP1U)

[PE]

[PD]

[LB](32GP1U)

[LA]

[LB](37GP1U)

[HM]

[TS]

[VD]

[VE]

[SP]

[RA]

4 – 3

Page 16

LC-32GP1U/LC-37GP1U 1st

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

12.Remove the 1 lock screw and detach the GAME Unit Ass’y.

13.Remove the 4 lock screws from the GAME Unit Ass’y and detach the GAME Unit.

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

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

LC-37GP1U

GAME Unit Holder

GAME Unit

GAME Unit Shield

LC-32GP1U

GAME Unit Holder

GAME Unit

GAME Unit Shield

Tray Chassis

Speaker-R

R/C, LED Unit

Speaker-L

4 – 4

Page 17

16.Remove the 2 lock screws, 2 lock Shaft and detach the Jack Angle.

17.Remove the 7 lock screws and detach the POWER Unit.

18.Remove the 4 lock screws and detach the TERMINAL Unit.

19.Remove the 5 lock screws, 2 lock rivets and detach the MAIN PWB Radiator and MAIN Unit.

LC-32GP1U/LC-37GP1U 1st

MAIN PWB Radiator

MAIN Unit

POWER Unit

Jack Angle

TERMINAL Unit

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LC-32GP1U/LC-37GP1U 1st

20.Remove the 6 lock screws and detach the Rug Angle Top-L and R. (LC-32GP1U)

Remove the 4 lock screws and detach the Rug Angle Top-L and R. (LC-37GP1U)

21.Remove the 6 lock screws and detach the Rug Angle Bottom-L and R.

22.Remove the 3 lock screws and detach the Chassis Fix Angle Top. (LC-32GP1U)

Remove the 5 lock screws and detach the Chassis Fix Angle Top. (LC-37GP1U)

23.Remove the LCD Panel Module.

LC-32GP1U

Rug Angle Top-R

Rug Angle Bottom-R

LC-37GP1U

Chassis Fix Angle Top

Rug Angle Top-L

Rug Angle Bottom-L

Rug Angle Top-R

Rug Angle Bottom-R

4 – 6

Rug Angle Top-L

Rug Angle Bottom-L

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LC-32GP1U/LC-37GP1U 1st

CHAPTER 5. ADJUSTMENT

Service Manual

[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: DUNTKE028FM05

2. Upgrading of each microprocessor software

CAUTION: Never “POWER OFF” the unit when software upgrade is ongoing.

Otherwise the system may be damaged beyond recovery.

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

2.2.1 Get ready before you start

• 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)

2.2.2 Preparations

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.)

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LC-32GP1U/LC-37GP1U 1st

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 GP1UAxxx.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.

2.2.3 Upgrading the software

1. Turn off the AC power (Unplug the AC power cord).

2. Insert the upgrading SD card (prepared as instructed above) into the service slot.

NOTE: Be careful not to insert the SD card in the wrong way. Otherwise the card may come into the set and fail to come out.

3. Turn on the AC power (Plug in the AC power cord).

4. A couple to dozen seconds after the set starts, the upgrade screen below shows up.

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LC-32GP1U/LC-37GP1U 1st

5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.

NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.

6. When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen. The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.

7. Turn off the AC power (Unplug the AC power cord). Take out the upgrading SD card.

8. Now the software has been upgraded.

NOTE: Then get the set started and call the process adjustment screen 1/29 to check the main software version.

CAUTION: 1) Do not take out and put in the SD memory card during formatting.

2) With the SD formatted, all the data stored on the medium will be deleted.

3) Do not start the SD formatting with the memory card's WRITE PROTECT switch still on.

4) If the SD memory card format software does not recognize the SD memory card, take out and put in the SD memory card again, and click the “UPDATE” button.

5) After checking the performance, use the set under its interface environment.

6) The SD formatting is impossible on drives that are not recognized “REMOVABLE”.

2.3. Upgrading the monitor microprocessor software

2.3.1 Kit

Have the above “Upgrading the main software” kit or equivalent at hand.

2.3.2 Preparations

As discussed in “Upgrading the main software” earlier, create the SD card for upgrading the monitor microprocessor software. For this SD card, use the monitor microprocessor upgrading binary image file.

2.3.3 Upgrading procedure

To follow the monitor microprocessor software upgrading, the monitor screen upgrade progress indicator and the flashing power LED indicator can be used.

1. Turn off the AC power (Unplug the AC power cord).

2. Insert the upgrading SD card (prepared as instructed above) into the service slot at the back of the set. Insert the SD card with its logo-printed face upward (visible). Be careful not to insert the SD card in the wrong way. Otherwise the card may come into the set and fail to come out.

3. Turn on the AC power (Plug in the AC power cord).

CAUTION: Now the monitor microprocessor software starts getting upgraded. Be very careful not to turn off the power while the software is being

upgraded. Otherwise the software will fail to upgrade itself and the set will fail to get started.

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LC-32GP1U/LC-37GP1U 1st

4. A couple to dozen seconds after the set starts, the upgrade screen below shows up. The upgrade progress is indicated on screen. The power LED indicator goes out once and then starts flashing in green. (It takes 2-3 minutes to get the monitor microprocessor software upgraded.)

5. If the procedure fails, the following upgrade failure screen shows up and the “NG” marking turns red. The power LED indicator fails to start flashing in green. Even if the usual screen reappears in several seconds, do the procedure from Step “1” again.

NOTE: In case of failure, try to upgrade the software again. If it still fails, the hardware may be in trouble.

6. When the procedure is complete, the following upgrade success screen shows up. The new software version can be confirmed on screen. The upgrade success can also be confirmed when the power LED indicator and the OPC LED indicator start flashing alternately in green, respectively. Double-check the upgrading and turn off the AC power (Unplug the AC power cord). Take out the upgrading SD card. Now the software has been upgraded.

Finally get the set started and call the process adjustment screen 1/29 to check the monitor microprocessor software version.

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LC-32GP1U/LC-37GP1U 1st

3. Entering and exiting the adjustment process mode

1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu.

2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power.

The letter “<K>” appears on the screen.

3) Next, hold down the “VOL (–)” and “CH ( )” keys at a time.

(The “VOL (–)” and “CH ( )” keys should be pressed and held until the display appears.)

Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment process mode.

When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.

4) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC cord and plug it again. In this case, wait 10 seconds or so before plugging.)

CAUTION: Use due care in handling the information described here lest your users should know how to enter the adjustment process mode. If the

4. Remote controller key operation and description of display in adjustment process mode

1) Key operation

Remote controller key Main unit key Function

CH ( / ) CH ( / ) VOL (+/–) VOL (+/–) Changing a selected item setting (+1/ –1) Cursor (UP/DOWN) ————— Turing a page (PREVIOUS/NEXT) Cursor (LEFT/RIGHT) ————— Changing a selected line setting (+10/ –10) INPUT ————— Input switching (toggle switching)

ENTER ————— Executing a function

2) Description of display

settings are tampered in this mode, unrecoverable system damage may result.

Moving an item (line) by one (UP/DOWN)

(TUNER→INPUT1→INPUT2→INPUT3→INPUT4→INPUT5→INPUT6→INPUT7)

*Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

(1) Current page/ (5) Destination

Total pages

1/29 [INFO] INPUT5 AUTO USA 46_UNDER

MAIN Version 0.90 ( U 2006/11/21 1A)

BOOT Version GP1UB 1.01

Monitor Version 0.9

EQ DATACHECKSUM ROM (8) Parameters

TEMPAERATURE 7B

LAMP ERROR 0

NORMAL STANDBY CAUSE

ERROR STANDBY CAUSE 1) 0 2) 0 3) 0

(2) Current page title

(3) Current selected input

(4) Current color system

0H 0M 0H 0M 0H 0M

4) 0 5) 0 0H 0M 0H 0M

(6) LCD Panel size/Speaker type

(LC-32GP1U: 32_UNDER) (LC-37GP1U: 37_UNDER)

(7) Adjustment

process menu header

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LC-32GP1U/LC-37GP1U 1st

5. List of adjustment process mode menu

The character string in brackets [ ] will appear as a page title in the adjustment process menu header.

Page Line Item Description Remarks (adjustment detail, etc.)

1 [INFO]

1 MAIN Version Main software version 2BOOT Version 3 Monitor Version Monitor software version 4 EQ DATA CHECKSUM Audio data checksum 5 TEMPERATURE CPU temperature 6 LAMP ERROR Number of termination due to lamp error 7 NORMAL STANDBY CAUSE Refer to *1 under the list for details 8 ERROR STANDBY CAUSE Refer to *2 under the list for details

2 [INIT]

1 INDUSTRY INIT (Cause) 2 INDUSTRY INIT Initialization to factory settings . 3 HOTELMODE Hotel mode 4 Center Acutime Accumulated main operation time 5 RESET Reset 6 BacklightAcutime Accumulated monitor operation time 7 RESET Reset 8 LAMP ERROR RESET Reset LAMP ERROR

9 VIC XPOS X-coordinate setting for VIC READ 10 VIC YPOS Y-coordinate setting for VIC READ 11 VIC COLOR Collected color data setting for VIC READ 12 VIC SIGNAL TYPE Signal type setting for VIC READ 13 VIC READ Picture level acquisition function Level appears in green on the upper right.

3 [N358MAIN]

1 N358 ALL ADJ CVBS and TUNER signal level adjustment

2 N358 MAIN ADJ CVBS signal level adjustment

3 TUNER DAC ADJ TUNER signal level adjustment

4 N358 MAIN CONTRAST CVBS and TUNER contrast adjustment values

5 TUNER A DAC TUNER adjustment value

6 VCOM ADJ VCOM adjustment value

4 [TUNER TEST]

1 TUNER VCHIP TEST(69ch) Tuning test and VCHIP test (69 ch)

2 TUNER VCHIP TEST(7ch) Tuning test and VCHIP test (7 ch)

3 TUNER VCHIP TEST(10ch) Tuning test and VCHIP test (10 ch)

4 TUNER VCHIP TEST(15ch) Tuning test and VCHIP test (15 ch)

5 [COMP15KMAIN]

1 COMP15K MAIN ADJ Component 15K picture level adjustment (main)

2 COMP15K CONTRAST Contrast adjustment value

3 COMP15K MAIN Cb GAIN Cb GAIN adjustment value

4 COMP15K MAIN Cr GAIN Cr GAIN adjustment value

5 COMP15K Y OFFSET Y OFFSET adjustment value

6 COMP15K Cb OFFSET Cb OFFSET adjustment value

7 COMP15K Cr OFFSET Cr OFFSET adjustment value

6 [HDTV]

1 HDTV ADJ Component Hi-Vision picture level adjustment

2 CONTRAST Contrast adjustment value

3 Cb GAIN Cb GAIN adjustment value

4 Cr GAIN Cr GAIN adjustment value

5 HDTV Y OFFSET Y OFFSET adjustment value

6 HDTV Cb OFFSET Cb OFFSET adjustment value

7 HDTV Cr OFFSET Cr OFFSET adjustment value

7 [COMP67K]

1 COMP67K ADJ (33K)

2 COMP67K ADJ (67K)

3 COMP67K CONTRAST

4 COMP67K Cb GAIN

5 COMP67K Cr GAIN

6 COMP67K Y OFFSET

7 COMP67K Cb OFFSET

8 COMP67K Cr OFFSET

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LC-32GP1U/LC-37GP1U 1st

Page Line Item Description Remarks (adjustment detail, etc.)

8 [DVI ANALOG]

1 DVI ANALOG ADJ

2 R CUTOFF

3G CUTOFF

4 B CUTOFF

5 R DRIVE

6 G DRIVE

7 B DRIVE

9 [FR DDRTEST]

1 DDRA TEST1

2 DDRA TEST2

3 DDRB TEST1

4 DDRB TEST2

5 DDRB TEST3

10 [M GAMMA IN]

1 MONITOR GAMMA IN 1 Standard value 1(WBI10184) Adjustment gradation setting.

2 MONITOR GAMMA IN 2 Standard value 2(WBI20352)

3 MONITOR GAMMA IN 3 Standard value 3(WBI30528)

4 MONITOR GAMMA IN 4 Standard value 4(WBI40656)

5 MONITOR GAMMA IN 5 Standard value 5(WBI50800)

6 MONITOR GAMMA IN 6 Standard value 6(WBI60928)

7 GAMMA WRITE WB adjustment data writing

8 GAMMA RESET WB adjustment data reading

11 [M GAMMA R1]

1 MONITOR GAMMA R 1 WB adjustment Point 1, R adjustment value Parameter for six-point adjustment

2 MONITOR GAMMA G 1 WB adjustment Point 1, G adjustment value

3 MONITOR GAMMA B 1 WB adjustment Point 1, B adjustment value

4 MONITOR GAMMA R 2 WB adjustment Point 2, R adjustment value

5 MONITOR GAMMA G 2 WB adjustment Point 2, G adjustment value

6 MONITOR GAMMA B 2 WB adjustment Point 2, B adjustment value

7 MONITOR GAMMA R 3 WB adjustment Point 3, R adjustment value

8 MONITOR GAMMA G 3 WB adjustment Point 3, G adjustment value

9 MONITOR GAMMA B 3 WB adjustment Point 3, B adjustment value 10 GAMMA WRITE WB adjustment data writing 11 GAMMA RESET WB adjustment data reading

12 [M GAMMA R4]

1 MONITOR GAMMA R 4 WB adjustment Point 4, R adjustment value Parameter for six-point adjustment

2 MONITOR GAMMA G 4 WB adjustment Point 4, G adjustment value

3 MONITOR GAMMA B 4 WB adjustment Point 4, B adjustment value

4 MONITOR GAMMA R 5 WB adjustment Point 5, R adjustment value

5 MONITOR GAMMA G 5 WB adjustment Point 5, G adjustment value

6 MONITOR GAMMA B 5 WB adjustment Point 5, B adjustment value

7 MONITOR GAMMA R 6 WB adjustment Point 6, R adjustment value

8 MONITOR GAMMA G 6 WB adjustment Point 6, G adjustment value

9 MONITOR GAMMA B 6 WB adjustment Point 6, B adjustment value 10 GAMMA WRITE WB adjustment data writing 11 GAMMA RESET WB adjustment data reading

13 [SOUND 1]

1 AUDIO SWITCH

2 FORCED FLAT MODE

3 AIN1_ADC_VOLUME

4 AIN2_ADC_VOLUME

5 AIN3_ADC_VOLUME

6 AIN4_ADC_VOLUME

7 AIN5_ADC_VOLUME

8 AIN6_ADC_VOLUME

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LC-32GP1U/LC-37GP1U 1st

Page Line Item Description Remarks (adjustment detail, etc.)

14 [SOUND 2]

1 INPUT_MIXER_GAIN_SP

2 INPUT_MIXER_GAIN_HP

3 INPUT_MIXER_GAIN_EXT

4 INPUT_MIXER_GAIN_EXT_HP

5 OUTPUT_MIXER_GAIN

6SUB_VOLUME_FLAT

7 SUB_VOLUME_EQ

8 SUB_VOLUME_AUDYSSEY

15 [SOUND 3]

1 PEQ1_F0

2 PEQ1_Q

3 PEQ1_GAIN

4 PEQ2_F0

5 PEQ2_Q

6 PEQ2_GAIN

7 PEQ3_F0

8 PEQ3_Q

9 PEQ3_GAIN 10 PEQ4_F0 11 PEQ4_Q 12 PEQ4_GAIN

16 [SOUND 4]

1 PEQ5_F0

2 PEQ5_Q

3 PEQ5_GAIN

4 VIRTUALIZER_LEVEL

5 BASS_BOOST_LEVEL

6 SLICER_LEVEL

7HPF_SW

8 HPF_LR

9LPF_SW 10 SW_MIXING_LEVEL

17 [M OPC1]

1 BRIGHTNESS DA0

2 BRIGHTNESS DA1

3 BRIGHTNESS DA2

4 BRIGHTNESS DA3

5 BRIGHTNESS DA4

6 BRIGHTNESS DA5

7 BRIGHTNESS DA6

8 BRIGHTNESS DA7

9 BRIGHTNESS DA8 10 BRIGHTNESS DA9 11 BRIGHTNESS DA10 12 BRIGHTNESS DA11

18 [M OPC2]

1 BRIGHTNESS DA12

2 BRIGHTNESS DA13

3 BRIGHTNESS DA14

4 BRIGHTNESS DA15

5 BRIGHTNESS DA16

6 BRIGHTNESS DA17

7 BRIGHTNESS DA18

8 BRIGHTNESS DA19

9 BRIGHTNESS DA20 10 BRIGHTNESS DA21 11 BRIGHTNESS DA22

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LC-32GP1U/LC-37GP1U 1st

Page Line Item Description Remarks (adjustment detail, etc.)

19 [M OPC3]

1 BRIGHTNESS DA23

2 BRIGHTNESS DA24

3 BRIGHTNESS DA25

4 BRIGHTNESS DA26

5 BRIGHTNESS DA27

6 BRIGHTNESS DA28

7 BRIGHTNESS DA29

8 BRIGHTNESS DA30

9 BRIGHTNESS DA31 10 BRIGHTNESS DA32

20 [M ADL1]

1 OPC33 ADLEVEL 0

2 OPC33 ADLEVEL 1

3 OPC33 ADLEVEL 2

4 OPC33 ADLEVEL 3

5 OPC33 ADLEVEL 4

6 OPC33 ADLEVEL 5

7 OPC33 ADLEVEL 6

8 OPC33 ADLEVEL 7

9 OPC33 ADLEVEL 8 10 OPC33 ADLEVEL 9 11 OPC33 ADLEVEL 10 12 OPC33 ADLEVEL 11

21 [M ADL2]

1 OPC33 ADLEVEL 12

2 OPC33 ADLEVEL 13

3 OPC33 ADLEVEL 14

4 OPC33 ADLEVEL 15

5 OPC33 ADLEVEL 16

6 OPC33 ADLEVEL 17

7 OPC33 ADLEVEL 18

8 OPC33 ADLEVEL 19

9 OPC33 ADLEVEL 20 10 OPC33 ADLEVEL 21 11 OPC33 ADLEVEL 22

22 [M ADL3]

1 OPC33 ADLEVEL 23

2 OPC33 ADLEVEL 24

3 OPC33 ADLEVEL 25

4 OPC33 ADLEVEL 26

5 OPC33 ADLEVEL 27

6 OPC33 ADLEVEL 28

7 OPC33 ADLEVEL 29

8 OPC33 ADLEVEL 30

9 OPC33 ADLEVEL 31

23 [M V6THE]

1V6 OS THERMO 1

2V6 OS THERMO 2

3V6 OS THERMO 3

4V6 OS THERMO 4

5V6 OS THERMO 5

6V6 OS THERMO 6

7V6 OS THERMO 7

24 [M V5THE]

1V5 OS THERMO 1

2V5 OS THERMO 2

3V5 OS THERMO 3

4V5 OS THERMO 4

5V5 OS THERMO 5

6V5 OS THERMO 6

7V5 OS THERMO 7

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LC-32GP1U/LC-37GP1U 1st

Page Line Item Description Remarks (adjustment detail, etc.)

25 [M EEP SET]

1 MONITOR TIME OUT

2 MONITOR MAX TEMP

3 MONITOR STANDBY CAUSE

26 [M TESTPTRN]

1 LCD TEST PATTERN

27 [FR REGI]

1 READ/WRITE

2 SLAVE ADDRESS

3 REGISTOR ADDRESS

4WRITE DATA

5 READ DATA

28 [MEMORY CLR]

1 KEY LOCK(1217)

2 KOUTEI AREA ALL CLEAR

3 A MODE AREA CLEAR

4 BACKUP AREA CLEAR

5 B MODE AREA CLEAR

6EXECUTION

29 [ETC]

1 EEP SAVE Writing setting values to EEPROM.

2 EEP RECOVER Reading setting values from EEPROM.

3 STANDBY CAUSE RESET Reset stand by cause.

*1 Details of P1.7(NORMAL STANDBY CAUSE)

6 No operation off in the cause of “no operation off” 7 No signal off in the cause of “no signal off” 8 PC power management mode 1 in the cause of “Standby mode MODE1” 9 PC power management mode 2 in the cause of “Standby mode MODE2” A Off timer in the cause of “SLEEP timer” C Command from RS232C in the cause of command by RS-232C

*2 Details of P1.8(ERROR STANDBY CAUSE)

5 Prolonged unspecified-signal input in PC mode in the cause of continuous “out of range”, PC input mode 13 Temperature error in the cause of abnormal temperature 16 Monitor trouble detected in the cause of abnormal monitor mode 17 Fan lock in the cause of fan lock

6. Special features

* STANDBY CAUSE (Page 1/29)

Display of a cause (code) of the last standby

The cause of the last standby is recorded in EEPROM whenever possible.

Checking this code will be useful in finding a problem when you repair the troubled set.

* EEP SAVE (Page 29/29)

Storage of EEP adjustment value

* EEP RECOVER (Page 29/29)

Retrieval of EEP adjustment value from storage area

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LC-32GP1U/LC-37GP1U 1st

7. Video signal adjustment procedure

7.1. 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.)

• 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

• 1080P 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

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

2. Process mode

Adjustment item Adjustment conditions Adjustment procedure

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

3. Composite N358 signal/tuner adjustment

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.

[Video input signal] [US-10ch]

75% Color saturation

100% white 0% black 100% white

2 Automatic adjust-

ment execution

4. Component 15K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

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

Move the cursor to [ N358 ALL ADJ] and press the [ENTER] key. When [ N358 ALL ADJ FINISH] appears, the adjustment is complete.

100% Color saturation

480i 100% color bar

2 Automatic adjust-

ment execution

100% white

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

0% black

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5. Component 33K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

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

100% Color saturation

100% white

2 Automatic adjust-

ment execution

6. Component 1080P signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

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

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

100% Color saturation

100% white

1080i 100% color bar

0% black

1080p 100% color bar

0% black

2 Automatic adjust-

ment execution

7. DVI-I (analog) signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Setting DVI-I (analog)

signal: XGA (1024 x 768) 60Hz SYNC: HV separate

2 Automatic adjust-

ment execution

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

Feed the XGA (100%) white 1/2 window to DVI-I (analog).

1/4

1/2

1/4

Bring the cursor on [ DVI ANALOG ADJ] and press [ENTER]. [ DVI ANALOG ADJ FINISH] appears when finished.

1/2

100% White

0% Black

1/4

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7.2. 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 V1.6”.

1) Make the following settings for the set. AV MODE: [DYNAMIC] Backlight: +16 Active Backlight: OFF 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 (656 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 (528 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 (352 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-32GP1U/LC-37GP1U” Teaching set [Adjustment reference] Instrument: Minolta CA-210 Engineering instrument

Point 4 Level Reference Adj. spec Ins. spec WBI40656 Point 6 928 X=0.272 ±0.0025 ±0.003 MG4G**** y=0.277 MG4B**** Point 5 800 X=0.272 ±0.0025 ±0.003 MG4R**** y=0.277

Point 4 656 X=0.272 ±0.0025 ±0.003 Point 3 y=0.277 WBI30528 Point 3 528 X=0.272 ±0.0035 ±0.005 MG3G**** y=0.277 MG3B**** Point 2 352 X=0.272 ±0.0060 ±0.010 MG3R**** y=0.277

Point 1 184 X=0.272 ±0.0100 ±0.015

y=0.277 Point 2 WBI20352

MG2G**** MG2B**** MG2R****

Point 1 WBI10184 MG1G**** MG1B**** MG1R****

Writing MSET0003

Note Set conditions for inspection

AV MODE: [DYNAMIC] (Reset)

Monochro: ON

Active Backlight: OFF

Aging Time: Min. 60 minutes

5 – 13

Page 32

LC-32GP1U/LC-37GP1U 1st

7.3. Adjusting procedure by use of [RS-232C]

1. Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.

2. Start the unit with the RS-232C cable connected.

3. Start the terminal software. (The freeware readily available on the Internet will do.)

4. Make the following settings.

Baud rate 9,600 bps Data LENGTH 8 bit Parity bit None Stop bit 1 bit Flow control None

5. If the settings are correct, the terminal software indicates “ERR” against pressing of the “ENTER” key.

6. After the settings are done correctly, it is possible to make an adjustment by typing in the command shown in the table below and pressing the “ENTER” key on the keyboard.

7. Command entry is successful if the terminal software indicates “OK” when the “ENTER” is pressed. If “ERR” is shown, retry to enter the command.

8. Send the process mode switching command to switch from the RS232C operation mode to the process mode.

KRSW0001: “ERR” is returned.

KKT10037: When “OK” is returned, the process mode becomes active. When “ERR”, start over from KRSW0001.

9. Send each adjustment command.

7.4. Key writing

1. EDID writing (Main PWB: QPWBXE028WJZZ)

Adjustment item Adjustment conditions Adjustment procedure

1 DVI EDID writing File version checking 1) Using the checker, write the EDID data for DVI to IC1505 that is mounted on the

main PWB. TL1514: I2C clock, TL1515: I2C data TL1516: 5V, TL1517: GND TL1536: write protection (H: WP, Low: write enable)

2 HDMI EDID writing Inspection mode

File version checking

1) Using the checker, write the analog HDMI EDID data to IC801/IC1501/IC1502 that are mounted on the main PWB. TL833/1508/1510: I2C clock, TL834/1509/1511: I2C data TL831/1512/1513: 5V, TL835/1519/1518: GND TL832/1534/1535: write protection (H: WP, Low: write enable)

2) Write the data before the HDMI inspection with the checker. (If the EDID has not been written, the HDMI does not function normally.)

7.5. 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.

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) Standby Cause

6) EZ SETUP flag

7) V-CHIP block setting

7.6. Software version

Change of software version is notified at a technical report.

* Main microprocessor

* Monitor microprocessor

* EDID data (DVI, HDMI)

5 – 14

Page 33

LC-32GP1U/LC-37GP1U 1st

CHAPTER 6. TROUBLE SHOOTING TABLE

Service Manual

[1] TROUBLE SHOOTING TABLE

No video (1)

LC-32GP1U/LC-37GP1U 1st

COMPOSITE: No external input video

[INPUT-1]

Is INPUT-1 selected on the input select menu screen? Is the INPUT-SELECT for the input signal?

YES YES

Is there the COMPOSITE video signal input at pin (71) of IC501 (AV_SWITCH)?

YES YES

Is there the COMPOSITE video signal output at pin (60) of IC501? NO Check IC501 and its periph-

Is there the COMPOSITE video signal output at pin (2) of connector (SC501) on the TERMINAL unit? NO Check the line between

NO Select INPUT-1 on the input

select menu screen for the right input signal.

Does the INPUT-1 V2.PLUG detection function? Check the line between pin (6) of input terminal (J801) and pin (76) of IC501 (AV_SWITCH).

NO Check the line between pin

(7) of J508 and pin (71) of IC501.

YES

Is INPUT-2 selected on the input select menu screen?

Is there the COMPOSITE video signal input at pin (3) of IC501 (AV_SWITCH)?

COMPOSITE: No external input video

[INPUT-2]

NO Select INPUT-2 on the input

select menu screen.

Does the INPUT-2 V3.PLUG detection function? Check the line between pin (6) of input terminal (J509) and pin (2) of IC501 (AV_SWITCH).

NO Check the line between pin

(7) of J509 and pin (3) of IC501.

eral circuits.

IC501 and SC501 (Q501 thru Q504, etc.).

YES

Is there the COMPOSITE video signal input at pin (2) of connector (SC1101) on the MAIN unit? NO Check the SC501 and

YES

Is there the COMPOSITE video signal input at pins (M4, N4) of IC3301 (VPC)? NO Check the line between

YES Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301? TA2_P/M (AJ30/AK30), TB2_P/M (AJ29/AK29), TC2_P/M (AJ28/AK28), TD2_P/M (AJ26/AK26), TE2_P/

M (AJ25/AK25), TCLK2_P/M (AJ27/AK27), TA1_P/M (AB29/AB30), TB1_P/M (AC29/AC30), TC1_P/M (AD29/AD30), TD1_P/M (AF29/AF30), TE1_P/M (AG29/AG30), TCLK1_P/M (AE29/AE30)

YES Check the panel module.

SC1101 connectors.

SC1101 and IC3301 (Q2201 thru Q2203, Q2205, Q2207, Q2209, etc.).

NO Check IC3301 and its

peripheral control circuits (IC3501, IC3502, IC8101, etc.).

6 – 1

Page 34

LC-32GP1U/LC-37GP1U 1st

No video (2)

COMPONENT: No external input video

[INPUT-1]

Is INPUT-1 selected on the input select menu screen? Is the INPUT-SELECT for the input signal?

NO Select INPUT-1 on the input select menu screen for the right input signal.

Does the INPUT-1 C2.PLUG detection function?

Check the line between pin (6) of input terminal (J802) and pin (40) of IC501 (AV_SWITCH).

YES

Is there the COMPONENT video signal input at pins (27) (Y) / (29) (Pb) and (31) (Pr) of IC501 (AV_SWITCH)?

NO Check the line between the input terminals of J502 and

IC501.

YES

Is there the COMPONENT video signal output at pins (60) (Y) / (59) (Pb) and (58) (Pr) of IC501?

COMPONENT: No external input video

[INPUT-3]

Is INPUT-3 selected on the input select menu screen? Is the INPUT-SELECT for the input signal?

NO Select INPUT-3 on the input select menu screen for the right input signal.

Does the INPUT-3 C1.PLUG detection function?

Check the line between pin (6) of input terminal (J507) and pin (38) of IC501 (AV_SWITCH).

YES

Is there the COMPONENT video signal input at pins (21) (Y) / (23) (Pb) and (25) (Pr) of IC501 (AV_SWITCH)?

NO Check the line between the

input terminals of J507 and IC501.

YES

S-VIDEO: No external input video

[INPUT-2]

Is INPUT-2 selected on the input select menu screen?

Does the INPUT-2 S3.PLUG detection function?

Check the line between pin (6) of input terminal (J503) and pin (42) of IC501 (AV_SWITCH).

YES

Is there the S-VIDEO signal input at pins (5) (Y) and (7) (C) of IC501 (AV_SWITCH)?

Check the line between pins (3) (Y) / (4) (C) of J503 and pins (5) / (7) of IC501.

NO Check IC501 and its peripheral

YES

[COMPOSITE signal input] Is there the COMPONENT video signal output at pins (2), (4) and (6) of connector (SC501) on the TERMINAL unit? [S-VIDEO signal input] Is there the video signal output at pins (2) (Y) and (4) (C) of connector (SC501) on the TERMINAL unit?

YES

[COMPOSITE signal input] Is there the COMPONENT video signal input at pins (2), (4) and (6) of connector (SC1101) on the MAIN unit?

[S-VIDEO signal input] Is there the video signal input at pins (2) (Y) and (4) (C) of connector (SC1101) on the MAIN unit?

YES [COMPOSITE signal input] Is there the COMPONENT video signal input at pins (U3) (Y) / (AA1) (Pb) and (W3) (Pr) of IC3301 (VPC)?

[S-VIDEO signal input] Is there the video signal input at pins (M4, N4) (Y) and (T1) (C) of IC3301 (VPC)?

YES Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301?

TA2_P/M (AJ30/AK30), TB2_P/M (AJ29/AK29), TC2_P/M (AJ28/AK28), TD2_P/M (AJ26/AK26), TE2_P/M (AJ25/AK25), TCLK2_P/M (AJ27/AK27), TA1_P/M (AB29/AB30), TB1_P/M (AC29/ AC30), TC1_P/M (AD29/AD30), TD1_P/M (AF29/AF30), TE1_P/M (AG29/AG30), TCLK1_P/M (AE29/AE30)

circuits.

YES

Check the line between IC501 and SC501 (Q501 thru Q504, etc.).

NO Check the SC501 and SC1101

connectors.

NO Check the line between SC1101

and IC3301 and its peripheral circuits.

NO Check the line between SC1101

and IC3301 (Q2201 thru Q2203, Q2205, Q2207. Q2209, etc.).

NO Check IC3301 and its periph-

eral control circuits (IC3501, IC3502, IC8101, etc.).

Check the panel module.

YES

6 – 2

Page 35

No video at UHF/VHF broadcast signal reception No video at digital broadcast signal reception

Is the specified TV signal selected on the input select menu screen?

LC-32GP1U/LC-37GP1U 1st

No video (3)

Is there the analog video signal output at the output pin (13) of tuner (TU1101)?

YES YES Is there the video signal output at pin (5) of IC1103

(LEVEL_ADJ)?

YES Is there the CVBS3 signal input at pin (N3) of IC3301

(VPC)?

NO Check the tuner, IC8601

(DE-MODULATOR) and their peripheral circuits (TUN_SDA/SCL, Q8601).

NO Does the level adjustment

control signal come from pin (6) of IC1103 to pin (1) of IC1104?

Check IC1104 and its peripheral circuits. Replace as required.

NO Check the line between

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

Is there the video signal output at the output pins (20) and (21) of tuner (TU1101)?

Are there the MPEG signal outputs (US_TS_PKTSYNC, US_TS_EN, US_TS_DATA, US_TS_CLK) from IC8601?

YES Are there the MPEG signal inputs (US_TS_PKTSYNC,

US_TS_EN, US_TS_DATA, US_TS_CLK) at IC8101 (CPU/DECODER)?

YES Are there the MVY [7:0], MVC [7:0] and MVCLKO/ MNSYNCO/MVSYNCO sig-

nal outputs from IC8101?

NO Check the tuner, IC8601

(DE-MODULATOR) and their peripheral circuits (TUN_SDA/SCL, Q8601).

NO Check IC8601 and its

peripheral control circuits.

NO Check the line between

IC8601 and IC8101.

NO Check IC8101 and its

peripheral circuits.

YES Are there the MVY [7:0], MVC [7:0] and MVCLKO/ MNSYNCO/MVSYNCO sig-

nal inputs at IC3301?

YES Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301? TA2_P/M (AJ30/AK30), TB2_P/M (AJ29/AK29), TC2_P/M (AJ28/AK28), TD2_P/M (AJ26/AK26), TE2_P/M (AJ25/AK25), TCLK2_P/M (AJ27/

AK27), TA1_P/M (AB29/AB30), TB1_P/M (AC29/AC30), TC1_P/M (AD29/AD30), TD1_P/M (AF29/AF30), TE1_P/M (AG29/AG30), TCLK1_P/M (AE29/AE30)

YES NO

Check the panel module. Check IC3301 and its peripheral control circuits (IC3501, IC3502,

IC8101, etc.).

YES

NO Check the line between

IC8101 and IC3301.

6 – 3

Page 36

LC-32GP1U/LC-37GP1U 1st

[HDMI/DVI signal input] No video (4)

No external input video [INPUT-4] No external input video [INPUT-5]

Is INPUT-4 selected on the input select menu screen? Is INPUT-5 selected on the input select menu screen?

Select INPUT-4 on the input select menu screen for the right input signal.

NO Does the HOT PLUG detection function? Does the HOT PLUG detection function? Does the HDMI_HPG5 signal come from pin (18) of con-

nector (SC801) to pin (67) of IC9101 (CPLD)?

Select INPUT-5 on the input select menu screen for the right input signal.

Does the HDMI_HPG3 signal come from pin (18) of connector (SC1501) to pin (66) of IC9101 (CPLD)?

NO Check the line between SC801 and IC9101 (CPLD) (Q1704, Q1706, etc.).

YES

Does the HDMI_PLG_ENA signal come from pin (82) of IC9101 to pin (34) of IC1510 (HDMI/HDCP/DVI COMPLIANT RECEIVER) and pin (40) of IC1702 (DVI/HDMI SWITCH)?

NO Check the line between IC9101 and IC1702/

IC1510.

YES

Does the HDP2 signal come from pin (62) of IC1702 to pin (19) of SC1701?

YES

NO Check the line between IC1702 and SC1701. Check the line between IC1507 and SC1501.

Does the signal come from connector (SC1701) to the input pins (67 and 68) (CLK±), (70 and 71) (D0±), (73 and 74) (D1±), and (76 and

77) (D2±), all of IC1702?

NO Is IC1701 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

NO Check the DDC line and its peripheral circuits (IC1701 (EEPROM) and its peripherals).

YES

Does the signal come from pins (34 and 35) (CLK±), (31 and 32) (D0±), (28 and 29) (D1±), and (25 and 26) (D2±) of IC1702 to pins (39 and 40), (43 and 44), (47 and 48), and (51 and 52) of IC1510?

YES

Are there the U3VINY [7:0], U3VINR [7:0], U3VINPBPR [7:0], U3VDIN, U3HDIN, U3DEIN and U3VINCLK signal outputs from IC1510?

Check IC1702, IC1510 and their peripheral circuits. Check IC1507, IC1510 and their peripheral circuits.

Does the signal come from connector (SC1501) to the input pins (48 and 49) (CLK±), (51 and 52) (D0±), (54 and 55) (D1±), and (57 and 58) (D2±), all of IC1507?

Does the signal come from pins (34 and 35) (CLK±), (31 and 32) (D0± (28 and 29) (D1±), and (25 and 26) (D2±) of IC1507 to pins (58 and 59), (62 and 63), (66 and 67), and (70 and 71) of IC1510?

NO Check the line between SC1501 and IC9101 (CPLD) (Q1506, Q1508, etc.).

YES

Does the HDMI_PLG_ENB signal come from pin (81) of IC9101 to pin (33) of IC1510 (HDMI/HDCP/DVI COMPLIANT RECEIVER) and pin (40) of IC1507 (DVI/HDMI SWITCH)?

NO Check the line between IC9101 and IC1507/

IC1510.

YES

Does the HDP3 signal come from pin (44) of IC1507 to pin (19) of SC1501?

YES

Is IC1501 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

Check the DDC line and its peripheral circuits (IC1501 (EEPROM) and its peripherals).

YES

NO Check IC1510 and its peripheral circuits.

YES Are there the U3VINY [7:0], U3VINR [7:0], U3VINPBPR [7:0], U3VDIN, U3HDIN, U3DEIN and U3VINCLK signal inputs at IC3301 (VPC)?

AB30), TB1_P/M (AC29/AC30), TC1_P/M (AD29/AD30), TD1_P/M (AF29/AF30), TE1_P/M (AG29/AG30), TCLK1_P/M (AE29/AE30)

YES Check the panel module.

6 – 4

NO Check the line between IC1510 and IC3301.

NO Check IC3301 and its peripheral control circuits

(IC3501, IC3502, IC8101, etc.).

Page 37

LC-32GP1U/LC-37GP1U 1st

[HDMI/DVI signal input] No video (4)

No external input video [INPUT-6] No external input video [INPUT-7]

Is INPUT-6 selected on the input select menu screen? Is INPUT-7 selected on the input select menu screen?

Select INPUT-6 on the input select menu screen for the right input signal.

Does the HOT PLUG detection function? Does the HOT PLUG detection function? Does the HDMI_HPG2 signal come from pin (18) of connector (SC1502) to pin (61) of IC9101 (CPLD)?

NO Check the line between SC1502 and IC9101 (CPLD) (Q1505, Q1507, etc.).

YES

Does the HDMI_PLG_ENB signal come from pin (81) of IC9101 to pin (33) of IC1510 (HDMI/HDCP/DVI COMPLIANT RECEIVER) and pin (40) of IC1507 (DVI/HDMI SWITCH)?

NO Check the line between IC9101 and IC1507/

IC1510.

YES

Does the HDP2 signal come from pin (62) of IC1507 to pin (19) of SC1502?

YES

NO NO Check the line between IC1507 and SC1502. Check the line between IC1507 and SC1503.

Select INPUT-7 on the input select menu screen for the right input signal.

Does the HDMI_HPG1 signal come from pin (14) of connector (SC1503) to pin (58) of IC9101 (CPLD)?

Check the line between SC1503 and IC9101 (CPLD) (Q1501, Q1502, etc.).

YES

Does the HDMI_PLG_ENB signal come from pin (81) of IC9101 to pin (33) of IC1510 (HDMI/HDCP/DVI COMPLIANT RECEIVER) and pin (40) of IC1507 (DVI/HDMI SWITCH)?

Check the line between IC9101 and IC1507/ IC1510.

YES

Does the HDP1 signal come from pin (44) of IC1507 to pin (19) of SC1503?

YES

Does the signal come from connector (SC1502) to the input pins (67 and 68) (CLK±), (70 and 71) (D0±), (73 and 74) (D1±), and (76 and 77) (D2±), all of IC1507?

NO Is IC1502 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

NO Check the DDC line and its peripheral circuits (IC1502

(EEPROM) and its peripherals).

YES

Does the signal come from pins (34 and 35) (CLK±), (31 and 32) (D0±), (28 and 29) (D1±), and (25 and 26) (D2±) of IC1507 to pins (57 and 58), (62 and 63), (66 and 67), and (70 and 71) of IC1510?

YES

Are there the U3VINY [7:0], U3VINR [7:0], U3VINPBPR [7:0], U3VDIN, U3HDIN, U3DEIN and U3VINCLK signal outputs from IC1510?

YES Are there the U3VINY [7:0], U3VINR [7:0], U3VINPBPR [7:0], U3VDIN, U3HDIN, U3DEIN and U3VINCLK signal inputs at IC3301 (VPC)?

YES Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301?

TA2_P/M (AJ30/AK30), TB2_P/M (AJ29/AK29), TC2_P/M (AJ28/AK28), TD2_P/M (AJ26/AK26), TE2_P/M (AJ25/AK25), TCLK2_P/M (AJ27/AK27), TA1_P/M (AB29/ AB30), TB1_P/M (AC29/AC30), TC1_P/M (AD29/AD30), TD1_P/M (AF29/AF30), TE1_P/M (AG29/AG30), TCLK1_P/M (AE29/AE30)

YES Check the panel module.

Does the signal come from connector (SC1503) to the input pins (5 and 6) (CLK±), (8 and 9) (D0±), (11 and 12) (D1±), and (14 and 15) (D2±), all of IC1507?

YES

Is IC1503 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

Check the DDC line and its peripheral circuits (IC1505 (EEPROM) and its peripherals).

NO Check IC1507, IC1510 and their peripheral

circuits.

NO Check IC1510 and its peripheral circuits.

NO Check the line between IC1510 and IC3301.

NO Check IC3301 and its peripheral control cir-

cuits (IC3501, IC3502, IC8101, etc.).

6 – 5

Page 38

LC-32GP1U/LC-37GP1U 1st

No audio (1)

[Audio signal] INPUT-1 No audio [Audio signal] INPUT-2 No audio [Audio signal] INPUT-3 No audio

[INPUT-1 input] Is INPUT-1 selected on the input select menu screen?

Is the audio output selected for “VARIABLE” on the menu screen?

YES YES YES

Set the audio output to “FIXED”. Set the audio output to “FIXED”. Set the audio output to

YES

[INPUT-1] Does the audio signal come from pins (5) (L) and (4) (R) of input terminal (J801) to pins (11) (L) and (9) (R) of connector (P801) on the GAME unit?

Check the audio signal from J801 to P801, and their peripheral circuits.

YES [INPUT-1] Is there the audio signal input at pins (11) (L) and (9) (R) of connector (P501)

on the TERMINAL unit?

[INPUT-2 input] Is INPUT-2 selected on the input select menu screen?

Is the audio output selected for “VARIABLE” on the menu screen?

YES

[INPUT-2] Does the audio signal come from pins (4) (L) and (2) (R) of input terminal (J509) to pins (12) (L) and (10) (R) of connector (SC502) on the TERMINAL unit?

Check the audio signal from J509 to SC502, and their peripheral circuits.

[INPUT-3 input] Is INPUT-3 selected on the input select menu screen?

Is the audio output selected for “VARIABLE” on the menu screen?

YES

“FIXED”.

[INPUT-3] Does the audio signal come from pins (4) (L) and (2) (R) of input terminal (J505) to pins (4) (L) and (2) (R) of connector (SC502) on the TERMINAL unit?

Check the audio signal from J505 to SC502, and their peripheral circuits.

NO Check the P501 and P801 connectors.

YES

[INPUT-1] Does the audio signal come from pins (8) (L) and (6) (R) of TERMINAL unit?

NO Check the audio signal from P501 to SC502, and their peripheral cir-

cuits.

YES [INPUT-1] Is there the audio signal input at pins (8) (L) and (6) (R) of connector (SC1102) on the MAIN unit?

NO Check the SC502 and SC1102 connectors.

YES

[INPUT-1] Does the audio signal come from pins (8) and (6) of SC1102 to pins (59) (L) and (60) (R) of IC1404 (CODEC)?

NO Check the line between SC1102

and IC1404 and their peripheral circuits.

YES

Is there the audio signal output at pins (38) (L) and (39) (R) of IC1404?

YES

[INPUT-2] Is there the audio signal input at pins (12) (L) and (10) (R) of connector (SC1102) on the MAIN unit?

Check the SC502 and SC1102 connectors.

YES

[INPUT-2] Does the audio signal come from pins (12) and (10) of SC1102 to pins (53) (L) and (54) (R) of IC1404 (CODEC)?

Check the line between SC1102 and IC1404 and their peripheral circuits.

YES

[INPUT-3] Is there the audio signal input at pins (4) (L) and (2) (R) of connector (SC1102) on the MAIN unit?

NO Check the SC502 and SC1102 connectors.

YES

[INPUT-3] Does the audio signal come from pins (4) and (2) of SC1102 to pins (61) (L) and (62) (R) of IC1404 (CODEC)?

NO Check the line between

SC1102 and IC1404 and their peripheral circuits.

YES

6 – 6

Page 39

LC-32GP1U/LC-37GP1U 1st

NO Check IC1404 and its periph-

eral circuits.

YES

Is there the audio signal output at pins (11) (L) and (14) (R) of connector (SC1301) on the MAIN unit? NO Check the line between

IC1404 and SC1301.

YES Is there the audio signal input at pins (11) (L) and (14) (R) of connector (P2704) on the TERMINAL unit?

YES Is there the audio signal input at pins (5) (L) and (3) (R) of IC2701 (STEREO_AMP)? NO Check the line between

YES Is the audio output from IC2701 as specified? NO Check IC2701 and its periph-

NO Check the SC1301 and

P2704 connectors.

P2704 and IC2701, and their peripheral circuits (AMP_MUTE line).

eral circuits.

YES Check the connector (P2703), speakers and their peripheral circuits.

6 – 7

Page 40

LC-32GP1U/LC-37GP1U 1st

No Audio (1)

[Audio signal] INPUT-6 No audio (HDMI analog input) [Audio signal] INPUT-7 No audio (DVI-I analog input)

[HDMI analog input] Is INPUT-6 selected on the input select menu screen?

YES YES

[HDMI analog input] Does the audio signal come from pins (4) (L) and (2) (R) of input terminal (J1501) to pins (57) (L) and (58) (R) of IC1404?

YES YES

Is there the audio signal output at pins (38) (L) and (39) (R) of IC1404? NO Check IC1404 and its

Is there the audio signal output at pins (11) (L) and (14) (R) of connector (SC1301) on the MAIN unit? NO Check the line between

Is there the audio signal input at pins (11) (L) and (14) (R) of connector (P2704) on the TERMINAL unit? NO Check the IC1301and

Is there the audio signal input at pins (5) (L) and (3) (R) of IC2701 (STEREO_AMP)? NO Check the line between

NO Is the audio output selected

for “VARIABLE” on the menu screen?

NO [HDMI analog input]

Check the line between J1501 and IC1404, and their peripheral circuits.

YES

[DVI-I analog input] Is INPUT-7 selected on the input select menu screen?

[DVI-I analog input] Does the audio signal come from pins (2) (L) and (3) (R) of input terminal (J1502) to pins (55) (L) and (56) (R) of IC1404?

NO Is the audio output selected

for “VARIABLE” on the menu screen?

NO [DVI-I analog input]

Check the line between J1502 and IC1404, and their peripheral circuits.

peripheral circuits.

IC1404 and SC1301.

P2704 connectors.

P2704 and IC2701, and their peripheral circuits (AMP_MUTE line).

YES

Is the audio output from IC2701 as specified? NO Check IC2701 and its

YES

Check the connector (P2703), speakers and their peripheral circuits.

peripheral circuits.

6 – 8

Page 41

[with HDMI connected] No audio (2) No audio in all modes (3)

[Audio signal] INPUT-4 No audio (HDMI connected) [Audio signal] INPUT-5 No audio (HDMI connected) [Audio signal] INPUT-6 No audio (HDMI connected)

LC-32GP1U/LC-37GP1U 1st

[INPUT-4 input] Is INPUT-4 selected on the input select menu screen? [INPUT-5 input] Is INPUT-5 selected on the input select menu screen? [INPUT-6 input] Is INPUT-6 selected on the input select menu screen?

YES [INPUT-4] If no video appears, refer to “No external input video (HDMI)

[INPUT-4]”. [INPUT-5] If no video appears, refer to

“No external input video (HDMI) [INPUT-5]”. [INPUT-6] If no video appears, refer to “No external input video (HDMI) [INPUT-6]”.

YES Is the SII9011_MUTE line as specified?

NO Is the audio output selected for

“VARIABLE” on the menu screen?

YES

Set the audio output to “FIXED”.

YES

NO Check Q1301, IC1303 and their

peripheral circuits.

YES Does the HDMI_SPDIF signal come from pins (78) of IC1510 to pin (2) of

IC1404 (CODEC)?

YES Is there the audio signal output at pins (38) (L) and (39) (R) of IC1404? NO Check IC1404 and its periph-

Is there the audio signal output at pins (11) (L) and (14) (R) of connector (SC1301) on the MAIN unit? NO Check the line between IC1404

Is there the audio signal input at pins (11) (L) and (14) (R) of connector (P2704) on the TERMINAL unit?

Is there the audio signal input at pins (5) (L) and (3) (R) of IC2701 (STEREO_AMP)? NO Check the line between P2704

Is there the audio output from IC2701 as specified? NO Check IC2701 and its periph-

NO Check the line between IC1510

and IC1404 and their peripheral circuits.

eral circuits.

YES

and SC1301.

YES

NO Check the SC1301 and P2704

connectors.

YES

and IC2701, and their peripheral circuits (AMP_MUTE line).

YES

eral circuits.

YES

Check the connector (P2703), speakers and their peripheral circuits.

6 – 9

Page 42

LC-32GP1U/LC-37GP1U 1st

No audio at digital broadcast signal reception No audio at UHF/VHF broadcast signal reception

No audio (4)

Move the sound volume key. Does the volume icon indicate the speakers?

NO NO

Are there the IF_OUT_N and IF_OUT_P signal outputs at pins (20) and (19) of tuner (TU1101)?

YES YES Are there the IF_OUT_N and IF_OUT_P signal inputs at pins (11) and (10) of

IC8601 (DEMODULATOR)?

YES YES Do the US_TS_CLK/DATA/ EN/PKTSYNC signals come

from pins (51, 59, 63 and

66) of IC8601 to pins (D11, A9, C10, B10) of IC8101 (CPU/DECODER)?

YES YES Is the communication between IC8101 and IC1404

(DAC) as specified? (DTV_I2SMCLK/DTV_I2S/ SCLK/DTV_I2SLRCLK)?

YES Set the audio output to

“FIXED”.

NO Check the tuner (TU1101)

and its peripheral circuits. Replace as required.

NO Check the line between

tuner (TU1101) and IC8601, and their peripheral circuits (filter circuit, etc.).

NO Check the line between

IC8601 and IC8101, and their peripheral circuits.

NO Check the line between

IC8101 and IC1404, and their peripheral circuits.

Is the audio output selected for “VARIABLE” on the menu screen?

Is there the SIF signal output at pin (15) of tuner (TU1101)?

Is there the SIF signal input at pin (21) of IC1401 (SIF_DECODER)?

Are the audio signal outputs at pins (30) (L) and (29) (R) of IC1401?

Are the audio signal inputs at pins (51) (L) and (52) (R) of IC1404?

YES Set the audio output to

“FIXED”.

NO Check the tuner (TU1101)

and its peripheral circuits. Replace as required.

NO Check the line between

tuner (TU1101) and IC1401, and their peripheral circuits (Q1102, Q1103, etc.).

NO Check IC1401

(SIF_DECODER) and its peripheral circuits. Replace as required.

NO Check the line between

IC1401 and IC1404, and their peripheral circuits.

YES YES Are the audio signal outputs at pins (38) (L) and (39) (R) of IC1404? NO Check IC1404 and its

YES

Are the audio signal outputs at pins (11) (L) and (14) (R) of connector (SC1301) on the MAIN unit? NO Check the line between

YES

Are the audio signal inputs at pins (11) (L) and (14) (R) of connector (P2704) on the TERMINAL unit? NO Check the SC1301 and

YES

Are the audio signal inputs at pins (5) (L) and (3) (R) of IC2701 (STEREO_AMP)? NO Check the line between

YES

Is the audio output from IC2701 as specified? NO Check IC2701 and its

YES

Check the P2703 connector, speakers and their peripheral circuits.

peripheral circuits.

IC1404 and SC1301, and their peripheral circuits.

P2704 connectors.

P2704 and IC2701, and their peripheral circuits (AMP_MUTE line).

peripheral circuits.

6 – 10

Page 43

LC-32GP1U/LC-37GP1U 1st

No audio signal at DIGITAL AUDIO OUTPUT terminal (Analog sound heard)

No INPUT-4/5/6 (HDMI) audio No audio at digital broadcast signal reception

If no video appears, refer to “No external input video (HDMI) [INPUT-4/5/6]”.

Is the SII9011_MUTE line as specified?

YES YES Does the HDMI_SPDIF signal come from pin (78) of

IC1510 to pin (2) of IC1404 (CODEC)?

NO Check Q1301, IC1303 and

their peripheral circuits.

NO Check the line between

IC1510 and IC1404 and their peripheral circuits.

Are there the IF_OUT_N and IF_OUT_P signal outputs at pins (20) and (19) of tuner (TU1101)?

YES Are there the IF_OUT_N and IF_OUT_P signal inputs at pins (11) and (10) of

IC8601 (DEMODULATOR)?

Do the US_TS_CLK/DATA/ EN/PKTSYNC signals come from pins (51, 59, 63 and

66) of IC8601 to pins (D11, A9, C10, B10) of IC8101 (CPU/DECODER), respectively?

YES Is the DTV_SPDIF signal

output at pin (R33) of IC8101?

YES Is the DTV_SPDIF signal

input at pin (5) of IC1404?

NO Check the tuner (TU1101)

and its peripheral circuits. Replace as required.

NO Check the line between

tuner (TU1101) and IC8601, and their peripheral circuits (filter circuit, etc.).

NO Check the line between

IC8601 and IC8101, and their peripheral circuits.

NO Check IC8101 and its

peripheral circuits.

NO Check the line between

IC8101 and IC1404, and their peripheral circuits.

YES

Is there the SPDIF signal output at pin (23) of IC1404 (CODEC)? NO Check IC1404 and its

YES

Is there the SPDIF signal input at pin (2) of IC1305 (SPDIF_BUFF)? NO Check the line between

YES

Is there the MUTE signal input at pin (1) of IC1305? NO Check the MUTE_A_ALL

YES

Is there the SPDIF signal input at pin (1) of DIGITAL AUDIO OUTPUT terminal (D1313)?

NO Check D1313 and its peripheral circuits. Replace as required. No optical output under the following conditions as per HDMI requirements.

* Audio contents protected * Audio frequency beyond 48 KHz * Audio bit length beyond 16 bits

YES

peripheral circuits.

IC1404 and IC1305 and their peripheral circuits.

and ACDET_MUTE signals.

6 – 11

Page 44

LC-32GP1U/LC-37GP1U 1st

No monitor audio

Is the audio output from the monitor set at “VARIABLE” or “FIXED” on the menu screen?

YES

Are the audio signal outputs at pins (40) (L) and (41) (R) of IC1404?

YES Are the audio signal inputs at pins (3) (L) and (5) (R) of IC1408 (BUFF_AMP)?

YES Are the audio signal outputs at pins (1) (L) and (7) (R) of IC1408?

YES Are the audio signal outputs at pins (16) (L) and (14) (R) of

connector (SC1102) on the MAIN unit?

YES Are the audio signal inputs at pins (16) (L) and (14) (R) of

connector (SC502) on the TERMINAL unit?

NO Check the bus line (SCL0_5/SDA0_5) and IC1404. Replace

as required.

NO Check IC1404 and its peripheral circuits. Replace as

required.

NO Check the line between IC1404 and IC1408, and their

peripheral circuits.

NO Check IC1408 and its peripheral circuits. Replace as

required.

NO Check the line between IC1408 and SC1102, and their

peripheral circuits.

NO Check the SC1102 and SC502 connectors.

YES Check the signal up to the monitor audio output terminal (J501).

No subwoofer output

YES

Is the subwoofer output set at “ON” on the MENU screen? NO Subwoofer output is set at “ON” on the MENU screen.

YES

Is the subwoofer output at pin (11) of IC1406? NO Check IC1406 and its peripheral circuits. Replace as

YES

Check the signal up to the subwoofer output terminal (J506). NO Check the SW_MUTE line. (Q2702 through Q2703 etc.)

NO Check the MUTE.R line (Q507 thru Q509, etc.).

required.

6 – 12

Page 45

LED flashing timing chart for error notification.

250ms 1sec

1) Power LED (The power LED (Green) which lights during TV reception flashes.)

Error type Power green LED operation (1 cycle) Pins are microprocessor (IC2002) pins.

Lamp failure Flashes once: Fast

Power failure Flashes twice

Communication failure with main CPU Flashes 3 times

Vsync Trident failure Flashes 4 times

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

LC-32GP1U/LC-37GP1U 1st

ERR_PNL (pin 43): L failure. Confirmed after 10 consecutive matches at 500 ms intervals (detected only when the backlight is on). Note that after five match 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 “LAMP ERROR” counts are cleared to 0 when the corresponding setting in the page 1 of process A is made or when the power is turned on with [CH_DOWN] and [VOL_UP] on the unit down or after continuous illumination for 3 minutes.

Refer to “Power failure details”.

Refer to “Communication failure details”. Communication line failure or main CPU communication failure. → Check debug statements for the main CPU. Communication line with main CPU: TXD (pin 28), RXD (pin

29)

VSYNC (pin 46) failure (uninput). Trident_IC operation failure. Detected during operation (interruption).

Monitor temperature failure Flashes 5 times

Program data broken Flashes 8 times

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

Error type OPC LED operation (1 cycle) Pins are microprocessor pins unless otherwise specified.

PS_ON DET_10V failure Flashes once

D_POW DET_D3V3 failure Flashes twice

D_POW DET_6V failure Flashes 3 times

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD “TEMPERATURE” 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. [Method of evasion] MONITOR MAX TEMP on page 23 of process A: Temperature protection threshold is changed small.

Internal Flash ROM data is not correct.

[Restore] Write Monitor Micon software.

DET_10V (pin 57). UR10V or A9V is not applied. If error is detected during operation, error standby is activated by polling.

DET_D3V3 (pin 59) failure (L). D3.3V is not applied. If error is detected during operation, error standby is activated by polling.

DET_6V (pin 56) failure (L). D5V or A5V is not applied. If error is detected during operation, error standby is activated by polling.

6 – 13

Page 46

LC-32GP1U/LC-37GP1U 1st

Error type OPC LED operation (1 cycle) Pins are microprocessor pins unless otherwise specified.

PANEL_POW PNL_5V failure Flashes 5 times

H: On

L: Off

DET_PNL_5V (pin 58) failure (L). Panel power is not applied. If error is detected during operation, error standby is activated by polling.

Main failure Flashes 7 times

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

Error type OPC LED operation (1 cycle)

Initial communication reception failure Flashes once

Time-out setting reception failure Start-up confirmation reception failure Flashes twice

Regular communication failure Flashes 3 times

H: On

L: Off

H: On

L: Off

H: On

L: Off

H: On

L: Off

Main microprocessor detection error (FAN error, 1bit AMP error, etc.) The details are displayed in “ERROR STANDBY CAUSE” on page 1 of process A for the main microprocessor.

Initial communication from the main CPU is not received. (After cancelling the reset, request for the monitor model No. is not received.) → 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.) → 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. → Main CPU operation failure or monitor microprocessor’s reception failure.

Basically, communication logs are analyzed by a bus

monitor or debug print logs are analyzed.

6 – 14

Page 47

LC-32GP1U/LC-37GP1U 1st

CHAPTER 7. MAJOR IC INFORMATIONS

Service Manual

[1] MAJOR IC INFORMATIONS

1. IC501 (VHiMM3151XQ-1Q)

This I2C bus-controlled video switch is designed to switch between tow-system color difference (component) signal, one-system S video signal and three-system composite signal.

The analog video signal from the INPUT-1 or INPUT-2 and INPUT-3 input terminal is fed into this IC for selection. The video output signal from this IC flows through a low-pass filter into the video signal processing circuit IC3301 (IXB925WJ).

2. IC2701 (VHiTPA3100D-1Y)

The Class-D type digital audio power amplifier TPA3100D gives maximum continuous output of 15 W/ch.

3. IC1401 (VHiAN5832SA-1Y)

The AN5832SA is an I2C bus-controlled, US-standard analog TV sound multiplexing demodulator IC. It has the following functions built in: SIF demodulation, STEREO demodulation, SAP demodulation, dbx noise reduction, and audio AGC.

4. IC1404 (VHiAK4683EQ-1Q)

This IC provides for 2-channel A/D and 4-channel D/A (192-kHz sampling).

The built-in digital audio interfaces DIR (Digital Interface Receiver) and DIT (Digital Interface Transmitter) (192 kHz compatible, 6 inputs/1 output) are compatible with the AES3, IEC60958, S/PDIF, and EIAJ CP1201 standards. Both the DIR and DIT can handle 192-kHz sampling and 24-bit data. The DIR is also equipped with 6-channel input selector that detects not just PCM data but also Dolby Digital and other non-PCM data.

5. IC1407 (VHiTAS3108D-1Y)

The TAS3108 is a fully programmable digital audio processor that preserves high-quality audio by using a 48-bit data path, 28-bit filter coefficients, and a single cycle 28 x 48-bit multiplier with a 76-bit accumulator.

It has the following functions buitl in: 5band PEQ, 256tap Finit Impulse Response Filter, TI Virtual surround, TI Bassboost, Tone Control, and Subwoofer output.

6. IC1507, IC1702 (VHiTMDS341A-1Y)

The TMDS341 single-chip IC is provided with multiple switching function, in which up to 2 HDMI ports can be selected for a single display input terminal.

This 2-port device is also equipped with signal conditioning function and switching function. Each of the ports supports 4-channel TMDS signal, one hot plug detection, and I2C interface. Each of the 4 TMDS channels, in turn, provides maximum 1.65-Gbps signal transmission rate, fixed 8-dB input equalization, and enable/disable 3-dB output de-emphasis function.

On this IC, the INPUT-4/5 HDMI port are switched.

7. IC1510 (VHiSii9025+-1Q)

The TMDS receiver IC decodes differential serial-transmitted signal to parallel signal. Compatible with the HDCP system, encrypted signals can also be received.

This IC responds to the INPUT-4, 5, 6, 7 HDMI (High-Definition Multimedia Interface)/DVI selected by IC1507, IC1702.

8. IC2002 (RH-iXB986WJN3Q)

The monitor microprocessor is intended to communicate with the main microprocessor and to operate the system. It also controls power of the entire system.

9. IC3301 (RH-iXB925WJQZQ)

This video processor consists of an LSI system-on-chip device. For high-precision data processing, it is equipped with a high-precision 166-MHz, 10bit A/D converter.

For processing analog video signals, this IC supports the NTSC-compatible high-performance multi-format 2D/3D digital Y/C separation video decoder as well as the video format conversion engine. It provides for 10-bit video signal processing.

10. IC3501/3502 (RH-iXB822WJQZQ)

These ICs are 128-Mbit GDDR SDRAM (Graphic Double Data Rate Synchronous DRAM), providing a memory for image processing and buffering OSD data.

7 – 1

Page 48

LC-32GP1U/LC-37GP1U 1st

11. IC8101 (RH-iXB281WJZZQ)

This LSI with MPEG-2 system decoder performs back-end processing for digital broadcasting. It is equipped with a CPU (processor core: AM33-3), de scrambler (DES), transport stream de-multiplexer, video decoder (MPEG-2 MP@HL compatible), graphic processor, audio decoder (AC3 compatible), and an NTSC video encoder.

After receiving transport stream from the tuner, the LSI decrypts pay-TV broadcasts with the de scrambler. Then using the de-multiplexer, it separates and decodes the compressed audio and video data to send the signals. In the visual system, the graphic processor makes it possible to overlap subtitles and perform scaling. Digital video signals (Y, Pb and Pr, or 480I/P, 720P and 1081I) and down-converted NTSC signals (Y/C and composite, or 480I) can be sent simultaneously. As for the audio system, decoded AC3 audio can be overlapped with sound effects.

The LSI also contains various interfaces (I2C x 2, UART x 3, an SD Memory Card interface, a Cable CARD interface, etc.) and a GPIO. Using these interfaces, the CPU controls peripheral circuits of the tuner, SD Memory Cards, Cable CARDs, etc. One of the UARTs is used by the CPU to establish communications with the monitor microcomputer in the unit, where remote control information or other data is exchanged. Another UART is used for RS-232C serial communications to connect the unit to a PC.

12. IC8301/8302/8303/8304 (RH-iXB765WJQZQ)

These are 256-Mb (4 Mb x 16 I/O x 4 banks) F-die DDR SDRAMs.

13. IC8451 (RH-iXC092WJQZQ)

The 64-Mbit page mode flash memory device stores the main CPU program.

14. IC8601 (RH-iXB684WJQZQ)

The RH-IXB684WJQZQ comprises a family of advanced QAM and VSB demodulator for the Digital Cable Ready and ATSC environments.

This IC is configurable to operate in either the ITU-J.83B/SCTE DVS-031 compliant 64 QAM or 256 QAM modes used by digital cable systems, or the ATSC compliant 8VSB mode used in digital terrestrial broadcasting.

For digitally modulated input signals (QAM or 8VSB), the RH-IXB684WJQZQ outputs a parallel or serial MPEG compliant transport stream.

15. IC8702 (VHiTC6384AF1EQ)

This is a Standard Memory Interface to SD Memory Controller.

16. IC9101 (RH-iXB997WJQZQ)

The high-performance CPLD (Complex Programmable Logic Device) is controlled by the main CPU to send control signals to various mounted devices.

17. IC5801 (RH-iXB857WJZZQ)

This IC improves the moving picture characteristics of LCD TV by converting the frame rate of full HD (1920 x 1080) from 60 fps to 120 fps.

7 – 2

Page 49

MEMO

LC-32GP1U/LC-37GP1U 1st

7 – 3

Page 50

LC-32GP1U/LC-37GP1U 1st

MAIN Unit

E028

Card

HDMI 2

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䇼PD䇽

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32" LCD Pan

1920×1080

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TERMINAL Unit

D999

HDMI 3

㩷

1 㵘23

113

LED Unit D909

KEY Unit D910

㩷

1 㵘23㩷1 㵘23

㩷

1 㵘23㩷1 㵘23㩷1 㵘23

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Audio L/R

Video + L/R

S-Video

Audio L/R

䇼KM䇽

Analog

Digital

Tuner

TU1101

1 6

DVI_I

HDMI

Audio L/R

RF IN

DVI Audio

Optical

Out

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㩷

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㪚㪥㪈

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Sub Woofer

㩷

121

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HDMI 1

Component

Audio L/R

CVBS

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GAME Unit

E013

LCD Cont

㵘

Unit

㪚㪥㪉

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㪚㪥㪋㪚㪥㪌

䇼GA䇽

䇼VD䇽

䇼VE䇽

䇼TS䇽

䇼VD䇽

䇼HM䇽

LC-32GP1U/LC-37GP1U 1st

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

Service Manual

[1] OVERALL WIRING DIAGRAM (LC-32GP1U)

12345678910

8 – 1

Page 51

POWER㵘Unit

RDENCA203WJQZ

䇼PE䇽

䇼PD䇽

32" LCD Panel

1920×1080

AC Socket (2pin)

䇼LB䇽

1 3

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8 1

1 2

INV-2㵘Unit

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INV-1㵘Unit

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Unit

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㪚㪥㪋㪚㪥㪌

LC-32GP1U/LC-37GP1U 1st

10 11 12 13 14 15 16 17 18 19

8 – 2

Page 52

LC-32GP1U/LC-37GP1U 1st

MAIN Unit

E028

Card

HDMI 2

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37" LCD Pan

1920×1080

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TERMINAL Unit

D999

HDMI 3

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LED Unit D909

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Audio L/R

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Digital

Tuner

TU1101

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DVI_I

HDMI

Audio L/R

RF IN

DVI Audio

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[2] OVERALL WIRING DIAGRAM (LC-37GP1U)

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8 – 3

Page 53

POWER㵘Unit

RDENCA203WJQZ

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37" LCD Panel

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LC-32GP1U/LC-37GP1U 1st

10 11 12 13 14 15 16 17 18 19

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Page 54

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Connector for writing

Connector for CPLD writing

Connector for software writing

&KUENGVG

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Voice multiplex decoder

Debugging connector

LC-32GP1U/LC-37GP1U 1st

[3] SYSTEM BLOCK DIAGRAM

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8 – 5

Page 55

LC-32GP1U/LC-37GP1U 1st

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POWER

INPUT

CH-UP/DOWN

VOL-UP/DOWN



Connector for software writing /Emulator

Debugging connector

10 11 12 13 14 15 16 17 18 19

8 – 6

Page 56

LC-32GP1U/LC-37GP1U 1st

SDTIA1 29

BICKA 15

SDTOA 16

RX0 2

PDN 25

XT0 22

XT1 21

RIN6 62

LIN6 61

RIN5 60

LIN5 59

RIN2 54

LIN2 53

ROUT1 41

LOUT1 40

ROUT2 37

LOUT2 38

TVDD 18

27 SDOUT1

SDTIA2 30

83:PVSS,19:DVSS

34:HVSS,49:AVSS1,44:AVSS2

1,10,12,13,14 29,33,34,35,36,37

SDOUT3

D3.3V

SDSP_RST

SDA1

SCL1

EFP_SDA

EFP_SCL

11 SDIN1

20 SCLKIN

IC1403

EEPROM

9,30,38

3XTALI

4XTALO

32/RESET

15SDA1

17SDA2

16SCL1

4GND 4SDA5SDA

18SCL2

3A2 3

5GND

SCL6SCL

2A1 2WP7WP

1A0 1D3.3V8Vcc

P1401

910

BB N.C

TUNER_5V_BB

TUNER_AD_SW

TUN_SCL

TUN_SDA

TUNER_5V_MB

N.C N.C BT GND MB RF-AGC SDA SCL AFL N.C VIDEO B1

SIF

B2 N.C IF_AGC IF(+) IF(-)

1Nr

3ON

2GND

5VOUT

4VIN

IC1101

PQIM505M

5V REG.

IC1102

PQIM505M

5V REG.

1Nr

3ON

2GND

5VOUT

4VIN

A9V

IF_AGC

IF_OUT_P

IF_OUT_N

TU1101

AA007WJQZ

IC1407

SOUND_DSP

X1402

38.844MHz

D3.3V

15TMDS1_D2P A14

14TMDS1_D2N B14

12TMDS1_D1P A13

11TMDS1_D1N B13

9TMDS1_D0P A12

8TMDS1_D0N B12

6TMDS1_CLKP A11

5TMDS1_CLKN B11

3SCL1

2SDA1

80 HPD1

58 A34

-OE 42

57 B34

PRE 19

55 A33

S2 22

B33

Y4 25

52 A32

Z4 26

51 B32

Y3 28

49 A31

Z3 29

48 B31

Y2 31

46 SCL3

Z2 32

45 SDA3

Y1 34

44 HPD3

SCL_SINK 38

Z1 35

SDA_SINK 39

HPD_SINK 40

VCC:7,13,17,27

33,43,50,56 61,69,75,79

VCC:4,10,16,24,30

36,37,47,53,59

65,66,72,78

SC1501

TMDS_INPUT-2

SC801

HDMI_INPUT-4

IC801

IXC036WJ

IC802

TMDS141

SC1502

TMDS_INPUT-3

1 2 3 4 5 6 7 8

931 10 11 12 13 14 15 16 32

252726

Q1509

(AnalogR)

A5V

D1516

173318 19 20 21 22 23 24

Q1510

(AnalogG)

A5V

Q1511

(AnalogB)

A5V

D3.3V

D1517

D1518

(Hsync)

(Vsync)

2 D3.3VVcc5

CLK

GND 5

Vcc

Rx/Cx

D3.3V

DVI_PC_R

DVI_PC_G

IC3301 VIDEO

PROCESSOR

AB1

5445DVIA_DET

SYNCDET_SW

IC2002

DVI_PC_B

DVI_PC_HD

DVI_PC_VD

CSEN2

SYNCDET_SW

Q1502

SW.

Q1501

SW.

Q1517

D3.3V

D5V

IC1505

24LC2BIN

EEPROM

D3.3V

Q1513

Q1512

HDMI_DDC_5VPOW_IN1

HDMI_DDC_SDA_IN1

HDMI_DDC_SCL_IN1

D1504

Q1516

HDMI_HPG3

HDMI_HPG2

HDMI_HPG1

HDMI_WP

SC1503

TMDS_INPUT-4

90,108,120,135

IOGND:4,15,25,75

91,106,115,127,138

CGND:21,24,36,73,80

64,68,72

AGND:41,45,49,53,60

AUDPGND:95 TMDSPGND:54

33 R1PWR5V

52 ROX2+

51 ROX2-

48 ROX1+

47 ROX1-

44 ROX0+

43 ROX0-

40 RCXC+

39 RCXC-

32 DSCL0

31 DSDA0

34 R0PWR5Y

QEO-7 144,143,142,141 140,137,136,133

QEO8-15 132,131,130,129 126,125,124,123

QEO16-23 119,118, 117,116 113,112, 111,110

29 DSDA1

30 DSCL1

58 R1XC-

59 R1XC+

62 R1XO-

63 R1XO+

66 R1X1-

67 R1X1+

70 R1X2-

121

R1X2+

HDMI_SEL1

HDMI_SW_EMP

HDMI_SEL2

HDMI_SEL3

HDMI_SW_OEB

HDMI_PLG_ENB

HDMI_SEL1

HDMI_INT

HDMI_RST

HDMI_SW_EMP

HDMI_SEL2

HDMI_SEL3

HDMI_WP

HDMI_HPG1

HDMI_HPG2

HDMI_HPG3

HDMI_HPG5

HDMI_PLG_ENA

HDMI_SW_OEA

HDMI_SEL5

HDMI_SW_OEB

HDMI_PLG_ENB

IC1702

TMDS341

3-TO-1

DVI/HDMI

SWITCH

TMDS6_CLKN

HDMI_HPG6

SCL3

SDA3

HPD3HGP

TMDS6_CLKP

TMDS6_DON

TMDS6_DOP

TMDS6_D1N

TMDS6_D1P

TMDS6_D2N

TMDS6_D2P

HDMI_WP

HDMI_SW_OEA

HDMI_SW_EMP

HDMI_SEL5

TMDS0_SE_D2P

TMDS0_SE_D2N

TMDS0_SE_D1P

TMDS0_SE_D1N

TMDS0_SE_DOP

TMDS0_SE_DON

TMDS0_SE_CLKP

TMDS0_SE_CLKN

SCL_SINKO

SDA_SINKO

HPD_SINKO

104INT

77MUTEOUT

103SCDT

78SPDIF

102RESET#

IC9101

CPLD

IXB997

WJQZ

IC1510

S119025

HDMI/

HDCP/DVI

COMPLIANT

RECEIVER

PVcc0:37,PVcc1:55 AVcc:38,42,46,50 57,61,65,69 ICVcc:5,16,26 76,89,109,122,134 XTALVcc:98 REGVcc:99

CVCC18:22,23 35,74,79,42,105 114,128,139 AUDPVcc18:94

D1305

Q1307 MUTE

Q1308 MUTE

D1306

1,14,6,10,15,12 16,17,18,23,13

IC1408

NJM4565V

BUFF.AMP.

OUT.L

MUTE.R

OUT.R

V3.L V3.R V2.L V2.R V1.L V1.R

12 10

8 6 4 2

VIDEO1

COMP1

VIDEO2

COMP3

S-2

71 V2

31 PR2

23 PB2

40 SW2

27 CY2

2S-3

3V4

42 SW3

5Y4

80 S2-3

7C4

25 PR1

C1.Y

C1.PLUG

C1.PB

C1.PR

S3.C

S3.F

S3.Y

S3.PLUG

S3.V

S3.PLUG

C2.Y

C2.PLUG

C2.PB

C2.PR

V2.V

V2.PLUG

23 PB1

38 SW1

21 CY1

27 SCL

26 SDA

51 LIN1

52 RIN1

23 TX

58 RIN4

57 LIN4

RIN3

55 LIN3

24 MCLK2

5RX2

7INT

SDTIB

SDTI

10 LBCKB

1:PVDD,20:DVDD,50:AVDD1 33:HVDD,43:AVDD2,3:I2C

BICKB

DVP3.3V

DVI_L DVI_R

J1502 DVI_AUD_IN

D1313

D5V

Q1314

D1302

ATV_R

ATV_L

D1302

D1308

D1307

D1304

92-88

FLADD23

Q1701

DDC_5V

DDC_DAT

DDC_CLK

CEC

CLK-

CLK+

DAT_0-

DAT_0+

DAT_1-

DAT_1+

DAT_2-

TXC-

TXC+

TX0-

TX0+

TX1-

TX1+

TX2-

TX2+

RXC-

RXC+

RX0-

RX0+

RX1-

RX1+

RX2-

RX2+

VCC

SDA

SCL

VSS

DAT_2+

DDC_WP

CLK-

CLK+

DAT_0-

DAT_0+ DAT_1-

DAT_1+ DAT_2-

DAT_2+

HGP DDC_5V

DDC_DAT DDC_CLK

CEC

2 1

Q801 Q802

3.3V

Q803

CVBS

FR_L

FR_R

P802/P504

P801/P501

J801

J802

FRV_PLUG

FR_Y

FR_PB

FR_PR

FRY_PLUG

FR_V

FR_L

FR_R

FRV_PLUG

FR_Y

FR_PB

FR_PR

FRY_PLUG

OUTPUT

J506

(SUBWOOFER)

AVOUT

IC1406

2VrmsAudio DAC

(OPTOUT)

SC802/SC702

(FR_V)

(FR_L) (FR_R)

(FRV_PLUG)

(FR_Y)

(FR_PB )

(FR_PR )

(FRY_PLUG)

[4] MAIN BLOCK DIAGRAM

8 – 7

12345678910

Page 57

LC-32GP1U/LC-37GP1U 1st

VIDEO1

COMP1

VIDEO2

S-VIDEO2

COMP3

S-2

71 V2

31 PR2

23 PB2

40 SW2

27 CY2

2S-3

3V4

42 SW3

5Y4

80 S2-3

7C4

25 PR1

C1.Y

C1.PLUG

C1.PB

C1.PR

S3.C

S3.F

S3.Y

S3.PLUG

S3.V

S3.PLUG

C2.Y

C2.PLUG

C2.PB

C2.PR

V2.V

V2.PLUG

23 PB1

38 SW1

21 CY1

)

UG)

10 11 12 13 14 15 16 17 18 19

8 – 8

Page 58

LC-32GP1U/LC-37GP1U 1st

MAIN Unit

(Side-A)

LC-32GP1U/LC-37GP1U 1st

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

Service Manual

[1] MAIN Unit

12345678910

9 – 1

Page 59

LC-32GP1U/LC-37GP1U 1st

10 11 12 13 14 15 16 17 18 19

9 – 2

Page 60

LC-32GP1U/LC-37GP1U 1st

SC1702

LUG1104

R1724

R1725

R1705

R1701

C1703

R1721

R1714

R1734

R1719

D1706

Q1706

C1704

R1727

Q1702

R1708

R1717

R1722

R1728

R1723

Q1704

R1715

IC1702

D1701

R1707

R1702

R1736

R1502

VA1701

SC1701

L1701

VA1703

R1737

VA1705

L1702

VA1707

R1703

R1704

VA1702

C1719

C1723

C1726

L1703

VA1704

C1718

C1724

C1722

VA1706

L1704

R1516

R1551

VA1708

D1501 D1511

C1728

Q1501

Q1502

Q1505

Q1507

R1581

R1557

R1634

R1520

R1633

R1559

R1648

Q1506

Q1508

D1527

R1555

D1514

Q1518

Q1519

R1501

R1611

R1649

R1647

R1604

R1605

R1616

VA1509

L1506

SC1501

VA1513

R1632

VA1517

R1636

L1507

R1607

VA1521

C1543

R1609

VA1510

C1544

L1508

R1614

VA1514

R1608

VA1518

L1509

VA1522

IC1507

R1650

D1528

Q1520

C1550

C1549

Q1521

R1606

R1595

R1601

R1505

R1618

R1651

C1608

R1519

D1526

R1544

FB1515

R1511

VA1511

C1538

Q1522

L1510

SC1502

Q1523

VA1515

VA1519

L1511

R1558

VA1523

C1531

VA1512

D1519

L1512

C1643

VA1516

R1572

VA1520

L1513

VA1524

IC1504

R1560

R1580

P9301

R1645

R1642

R1643

R1644

R9325

R9317

R9303

R1573

R1577

VA1505

L1503

R1574

VA1508

VA1507

L1504

R1578

VA1506

VA1504

L1502

VA1503

R1575

VA1501

L1501

VA1502 R9333

R1579

R9337

R9332

IC1508

R9336

R1525

C1521

R1582

R1592

D1507

FB1505

SC1503

C1577

R1526

D1508

C1559

FB1509

R1571

R1529

IC1503

R1561

C1522

R1613

R1619

C1638

C1524

C1523

R1513

Q1509

D1512

R2053

R2005

FB1507

C1525

R1563

R1568

R1548

C1526

R1562

FB1508

C1527

Q151

R1564

IC2

R1565

R1549

C1528

R8190

R8415

IC8403

R84

IC2

FL8

IC200

R8417

C2021

R9302

C2019 C2025

R8413

FL8405

R2065

R8414

R8346

R8340

R8384

C8357

C8359

C8336

C8321

R9101

R9309

P9101

R9103

R9311

R9110

R9104

R9105

R9315

R9102

R9132

R8371

R9313

R9305

C8319

C9103

IC8303

R8379

R9106

C9102

R9301

R9344

R8328

R9348

R9341

R9343

R9354

C8315

R9352

C8317

C8325

R9326

R9334

R9335

C1540

X1501

C1617

C1620

C1564

C1565

C1590

C1588

C1600

C1604

C1610

C1612

R1610

R1612

C1656

C1655

R1596

R1627

R3344

R1626R1631

IC1510

R3342

R1630R1629

R3343

R1628

C1598

C1560 C1619

C1605 C1622

C1595

C1561

C1618

C1603 C1621

R1521

R1522

FB3309

R3354

C1636

C1552

C3317

X3302

R1119

C1554

IC3304

C1541

C3364

R3373

LUG1107

C1637 C1537

R1731

FB1513

R1118

R1729

R1735

R3319

C1706

R3350

D9004

P9007

P2002

FB9007

P3301

tptp4

R3303

R3313

IC3502

R3565

R3548

R3552

R3568

R3545

R3561

R3567

R3559

X3303

R3308

R3374

C3387

R3302

C3319

C3323

R3310

C3326

R3301

IC3303

C3325

R3501

R3544

D3301

R3306

R3576

R3372

R3560

R3577

R3555

R3575

R3558

R3317

R3312

R3318

R3320

R3540

R3511

R3353

C3339

L3301

R3322

R3323

C3336

R3526

C3333

L3302

C3346

C3357

C3351

C3356

R3530

C3354

C3355

R3573

C3358

C3371

C3373

C3370

C3369

L3304

C3374

R3572

IC3301

C3379

C3385

L3305

C3386

C3390

R3507

C3399

C3396

L3306

C3420

C3409

R3347

R3514

R3346

R3570

X3301

R3352

C3411

R3359

R3340

R3341

C8323

C8303 C8311

C8309

C8301

R8329

R8324

R8325

C8330

R8383

R8378

R8382

IC8301

C8305

R8301

C8313

C8327

C8349

C8335

R8372

R8367

R8368

C8339

C8340

R8318

C8307

C8338

C8358

C8352

C8353

C8345

C8346

R8385

R8389

R8388

R8339

R8335

R8336

R8396

R8355

R8356

R8397

R8347

R8350

R8332

R8317

R8319

R8392

R8351

R8352

R83

R8303

R8342 R8393

L960

R26

L9602

P2603

R2612

R2611

C9620

C9654

C9652

C9621

C9653

C9655

D9612

D9611

C9622

C9605

R9654

Q9607

C9617

R9614

C9602

R9617

C9603

R9612

R9611

R9627

R9623

C9623

C9604

C9601

R9613

P9002

R9621

IC9603

L9604

C9607

C9606

C9608

R9648

R9649

C9613

R2614

C3432

R3378

Q3301

C9611

FL2611

R3375

FL2604

IC3302

C8332

R3376

R2607

Q3302

R3377

R2606

FB3501

FL2603

FL2601

R2604

C3430

C3429

C3501

L2612

L2605

L2610

L2604

P2601

L2609

L2603

L2611

L2608

L2602

L2607

L2601

L2606

R3518

R3522

R3515

IC3501

R3535

R3531

R3538

FB2601

P2602

FB2609

C2601

R1169

R1170

LUG1106

R1528

MAIN Unit (Side-A Chip)

12345678910

9 – 3

Page 61

LC-32GP1U/LC-37GP1U 1st

507

FB1505

SC1503

C1577

R1526

D1508

C1559

FB1509

R1571

R1529

IC1503

R1561

C1522

R1613

R1619

C1638

C1524

C1523

R1513

Q1509

D1512

R2053

R2005

FB1507

C1525

R1563

R1568

R1548

C1526

R1562

C1639

FB1508

C1527

Q1510

R1564

IC2006

R1565

R1549

C1528

R1569

FB1506

C1529

C1640

R1566

Q1511

R1550

C1530

R1567

R2062

R2060

R2061

R1570

C2023

C2017

C2018

TP2008

TP2006

C1641

TP2005

FB9011

L1505

R2057

R1166

P9003

D1313

R2044

C2013

R1343

IC1305

R2048

R2095

C1314

R2096

R2082

TP2004

Q1314

C1313

Q2008

R1344

L1301

TP2003

R2097

C1315

C1316

R2012

TP2001

R2031

R2002

R2033

Q2003

Q2002

J1502

P2001

R2114

R2116

R2118

C1502

FB1502

R1504

C1501

FB1501

C1505

R1508

R1515

R1503

C1510

C1507

J1501

R1509

R1514

C1509

C1504

C1503

FB1503

FB1504

TP1102

R1507

R1506

R1510

C1506

R1518

R1512

C1508

C1512

R1517

TP1101

C1511

D9008

P9005

D9007

D9006

tptp3

R8701

C8704

R8711

SC8701

C8706

C8705

C8702 R8707

R8706

IC8701

LUG1101

C8703

C8701

SC1102

R1175

R1176

C1122

R1121

L8605

L8607

C8621

C8630

C8620

C8629

L8602

L8603

C8615

L8604

L8606

C8609

C8608

L8601

X8601

C8637

R8613

C8633

TU1101

C8626

C8625

C8624

C8619

C8617

R8608

C8623

R8609

C8618

C8622

C8628

R8606

R8605

C8632

R8632

P2003

C8410

C2001

R8401

R2113

R2111

R2109

R2107

R2105

R2013

R2024

R2023

C2008

C2010

TH2001

R2032

C2030

R2019

C2004

C2005

R8410

FL8101

R8170

X2001

R8184

C2009

R2027

R8163

R2028

C2011

R2037

R2014

R2034

IC2002

X2002

R8161

C2012

R2049

R8156

C2016

R2046

R8174

R2047

R8171

R8180

D2003

R8169

TP2002

R8162

R2041

R2038

R2039

C2014

R2052

R2051

C2015

R8147

R8144 D8101

R8168

R2063

R2025

C2020

D8102

C8408

R8145

C8404

R8194

R8416

FL8406

C2022

R2064

R2059

R8116

R8191

R8190

R8415

IC2005

IC8403

R8418

IC2004

FL8404

IC2003

R8417

C2021

R9302

C2019 C2025

R8413

FL8405

R2065

R8414

R8346

R8340

R8384

C8357

R8385

R8389

R8388

R8339

R8335

R8336

R8396

R8355

R8356

R8397

R8347

R8350

R8332

R8317

R8319

R8392

R8351

R8352

R8320

R8341

R8311

R8303

R8342 R8393

R8343 R8179

IC8101

R8103

R8108 R8102

R9655

R8107

C8128

R8139

C8127

R8138

R8136

C8123

R8133 R8126

R9208 R8125 R8123 R8101

CN9201

R8634

R8635

R8615

R8617

R8620

R8638

R8618

R8616

C8642

C8643

C8645

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C8657

C8658

C1462

FB1401

C1466

C1459

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C1458

R1413

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R1472

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C8660

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R1429

C8613

R1432

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C8614

C8631

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C8610

C1430

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C8611

C8675

C8612

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C8601

FB8601

FB8608

FB8602

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C8638

L8608

C8634

R8614

R8619

C1449

R1448

R1460

C8639

C1447

R1447

R1458

C1444

C1443

R1428

C1474

C1451

C1450

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R1402

R1405

R1408

C1402

R1412

R1120

C1406

C1410

C1109

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C1124

C1106

C1119

SC1101 SC1301

FDC1

R1172

R1171

C1310

C1411

C1421

C1306

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C1404

C1408

C1409

R1403

R1406

C1417

C1418

R1427

D1312

R1334

R1333

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IC1401

R1332

R1330

R1324

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C1309

C1422

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C1420

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C1416

C1419

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R1350

R1347

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IC1301

C1401

C1407

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R1310

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R1528

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9 – 4

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LC-32GP1U/LC-37GP1U 1st

MAIN Unit (Side-B)

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Page 63

LC-32GP1U/LC-37GP1U 1st

10 11 12 13 14 15 16 17 18 19

9 – 6

Page 64

LC-32GP1U/LC-37GP1U 1st

MAIN Unit (Side-B Chip)

TL1128

TL1129

TL1131

TL1133

TL1135

TL8703

TL1132

TL1130

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TL1136

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TL8706

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R1101

R1111

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TL1104

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TL1538

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R2125

TL2023

TL2026

TL2025

R2123

TL2027

R2124

R9006

R9005

R2122

TL1540

TL2006

R2017

R2030

R2016

TL2020

TL2008

TL2019

TL2021

TL2024

TL2007

TL2009

R2131

R2132

R2120

TL1541

TL1542

R2112

R2108

R2104

R2102

R2129

R2130

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TL2010

TL2030

TL2015

TL2033

TL2029

TL2001

R2128

R2127

TL2011

IC2008

C2026

Q2004

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TL2031

TL2016

TL2034

TL2032

TL2028

TL2012

R2134

R2133

R2110

R2106

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R2117

R2103

R2101

R2045

R2043

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TL2017

TL2013

R2010

R2008

R2009

R9031

R2094

TL9024

R2093

R2011

R9030

C2032

IC2010

R2050

TL9025

TL1304

R2070

R2036

TL9026

R2029

R2098

TL9027

R2001

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R2081

R2054

R2055

R2056

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TL9029

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R2040

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R2042

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R8157

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R8113

R8111

R8151

R8150

C2003

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C8137

R2007

R2076

R2035

R8153

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D2004

TL8451

IC2001

R8148

C8133

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R8160

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R8158

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C2002

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R8185

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C8406

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C8131

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FL8401

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R2135

TL2018

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R8409

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X8401

C8411

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IC2202

R8412

R9201

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C2211

TL9203

TL9205

R2255

R2236

IC2007

R2004

R2237

TL9202

TL9204

TL9206

R8470

C8460

C8462

IC9001

R8474

C9004

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C8461

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C9006

Q8601

R8637

R8636

R8633

TL8601

R9015R9013

Q9003

C1105

R9012R9014

IC1102

C8673

TL8608

R8604

C8604

C1113

R1165

C1104

R8602

C8605

TL8609

TL8610

R8603

C8606

C1103

R1163

IC1101

C8635C8636

C8647

R1108

C1115

C8627C8641

R1136IC1105

C1112

R1135

C1131

R1107

C1102C8671

IC1104

C1116

R1164

FB8605

FB8606

C1107

R8601

R8607

R1117

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R1116

C8603

C8616

R1125

Q1104

C1136

FB1101

R1109

R1103

R1104

R1112

R1127

R1122

R1133

Q1103Q1102

C1123

R1160

R1130

C1127

R1131

R1129

R1132

R1439

R1455

TL1175

TL1174

TL1163

TL1169

TL1172

FB1112

TL1127

TL1162

TL1168

TL1171

TL1138

TL1140

TL1142

TL1144

TL1147

TL1151

TL1156

TL1158

TL1160

TL1173

TL1149

TL1153

TL1155

TL1157

TL1159

TL1161

TL1170

TL1137

TL1139

TL1141

TL1143

TL1145

TL1329

TL1327

TL1325

TL1324

TL1323

TL1301

TL1318

TL1315

Q1309

Q1313

Q1312

Q1307

Q1308

TL1176

TL1332

TL1146

TL1148

TL1150

TL1154

TL1317

TL1319

TL1316

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TL1321

TL1302

TL1328

TL1326

R1339

R1340

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TL1331

TL1152

R1331

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R1311

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R1325

R1304

R1326

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D1314D1309

TL1320

R1342

R1348

R1349

FDC2

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LC-32GP1U/LC-37GP1U 1st

R2070

R2036

TL9026

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R2098

TL9027

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R2212

C1635

C2229

R2223

C2230

L1514

Q2201

C3344

R1621

FB3302

R2202

R2206

TL1528

R2205

R2201

R1620

R1622

TP1501

Q2202

C2234

FB3303

C3348

R2210

TL1527

TL1529

R1598

R1597

C1623

C1624

C1575

L2203

L3303

R2224

C3360

Q2209

C1625

C1626

C2209

R2216

R2218

C2208

C2210

C1627

C1628

C2233

FL1501

L3307

C3398

R1624

Q2206

R2221

R3332

C3394

R2220

FB1521

R2219

C1629

C1630

R1623

C1593

C1602

TL1530

R3333

Q2205

R2207

C1601

C1607

C1611

C1606

C1609

R2211

C1562

C1563

Q2203

C3405

R2203

C1580

C1594

R1602

R2217

R2213

C3433

C3403

C1576

C2232

FB1518

R3334

C1632

C1631

FB1522

C1557

R3335

FB3304

TL1524

FB3305

R3371

TL1525

R1615

R1617

C3408

C3434

C1566

C1634

TL1526

R1635

TL9321

TL9352

TL9328

TL9318

TL9325

C8324C8326

C8318

TL9326

C8316

R9115

TL9329

C9105

TL9327

R8331

R8330

R9116

R9131

R8377

R8376

C9101

IC8304

C8320

R8373

C8328

R9111

R8374

C8350

R9113

TL1306

TL9103

R9107

R9112

TL9104

TL9101

C8322

C9104

TL9102

R9109

TL9105

R8314

R8316

C8334

R8338

R8337

R8386

R8348

R8387

C8342

R8357

R8398

C8356

C8351

C8343

R8468

R8349

R8399

R8358

C8453

R8467

R8177

R9004

R8197

R8181

R9007

R8196

C8452

C8143

R8178

C8144

R9010

R9011

R8141

R8143

C8132

C8154

R8164

TP8107

Q8452

R8167

Q8451

R8165

R8166

R8452

R8451

R8105

R8189

R8469

R8195

R8173

C8140

D8451

R8175

TL8452

C8139

R8155

R8154

R8118

R8157

R8188

C8138

R8149

R8113

R8111

R8151

R8150

C2003

Q2007

R8137

C8137

R2007

R2076

R2035

R8153

C8136

D2004

TL8451

TL8101

R8182

8105

R9610

R8109

C9647

IC8102

C8101

R9647

R8172

R8104

R8106

R9646

C9645

C8106

C9644

C8145

R8115

C8107

R8183

IC9607

C8108

R8193

R8192

C8109

C8119

R9638

C8130

C8125

C8121

C8153

C8115

C8117

C8111

C8152

C8113

R8117

R8121

R9639

C9639

R9640

R8176

C9640

R8114

TP8101

R8305

R8110

R8306

R8304

R8307

R8309

R8310

R8353

R8394

R8395

R8354

R8344

R8345

C8329

C8347

C8348

C8355

C8341

C8354

R8390

R8391

R8333R8334

C8333

R8313

R8315

TL9609

C8308

R8375

C8337

R8370

R8369

C8314

C8344

C8306

IC8302

R8380

R8381

R8327

R8326

IC8305

C8302

C8310

C8312

C8304

R3339

R3357

R3355

R3345

R3351

R3356

R3364

R3365

R3363

R3358

FB3306

R3368

R3369

R3367

R3362

C3431

C3415

R3361

R3366

C3414R3370

R3360

C3422

C3418

C3416

C3413

R3336

C3412

C3423

C3417

C3421

C3320

FB3307

C3309

C3328

C3301

C3410

C3425

C3302

C3404

C3316

C3424

C3407

C3402

C3395

C3397

C3342

C3334

FB3308

C3406

C3392

C3426

C3393

C3419

C3391

C3401

R3571

C3303

C3311

C3389

C3380

R3516

C3388

C3381

C3378

R3509

C3382

C3384

C3375

C3377

C3337

C3331

C3376

C3366

C3367

C3365

R3331

C3383

C3372

C3368

R3338

R3329

C3361

R3523

R3337

C3314

C3304

C3363

R3524

FB3301

C3359

C3353

C3310

C3352

C3349

C3315

C3313

C3362

R3520

R3330

C3347

C3350

R3328

C3329R3528

C3327

C3341

C3343

C3306

C3318

C3324

R3327

C3345

C3307

C3340

C3330

C3308

R3326

R3309

C3321

C3332C3335

R3533

R3324

TP3304

R3325

C3338

R3348

TP3303

C3322

C3305

C3428

R3529

R3349C3427

C3312

R3537

R3314

R3315

R3316

TP3302

R3574

R3546

R3307

R3542

R3311

R3513

R3554

R3304

R3502

R3305

R3547

R3553

R3321

R3563

R3550

C3525

C3531

C3521

C3535

C3522

C3532

C3526

C3524

C3523

C3534

C3533

C3520

TL3504

tptp1

R3569

C3538

TL3503

R3503

tptp2

R3562

R3506

C3536

TP2605

TP2604

TP2603

TL2634

FB2602

TL2637

TL2633

TL2629

TL2630

TL2632

TL2631

TL2638

TL2636

FL2615

TL2635

R2629

R2618

FL2613

TL2648

TL2650

C2605

R2620

R2619

TL2649

C2604

TP2602

C3502

TP2601

C3537

R3505

R3504

R3539

R3532

TP2606

C3516

C3506

C3507

C3503

C3518

TL3502

C3517

TL3501

C3504

C3515

C3508

C3514

C3505

C3513

R3517

FB2604

TL2624

FB2605

TL2625

R2624

FB2606

TL2626

R2625

C3539

FB2607

TL2627

R2626

FB2608

R2627

TL2628

R2615

R2616

TL2639

TL2640

R2622

FL2602

TL2642

TL2603

R2605

TL2643

R2602

TL2602

R2608

TL2641

TL2647

R2628

FL2605

FL2614

TL2644

TL2651

R2601

FL2606

TL2645

FL2612

TL2623

R2609

R2617

R2610

R2603

TL2646

FL2607

C9616

R9023

R9001

R9022

R9021

Q9608

IC9003

D9005

D9001

C9002

C9001

R9019

TL9047

C9610

TL9004

FB9003

FB9009

TL9015

FB9004

D9002

TL9017

R9002

FB9005

TL9045

FB9006

R9651

D9003

TL9046

R9652

R9653

Q9609

C2602

C9627

IC2601

TL9607

TL9608

IC9605

FL2608

C9626

TL2609

FL2609

R9601

TL2610

C2606

FL2610

R2623

TL2621

TL2601

FB2603

TL2622

C9643

R9641

R9645

R9644

R9642

C9642

C9635

R9643

C9641

R9636

R9637

C9634

C9633

Q9603

C9637

C9646

Q9604

IC9606

C9629

R9633

C9631

C9630

R9634

R9635

10 11 12 13 14 15 16 17 18 19

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Page 66

LC-32GP1U/LC-37GP1U 1st

TERMINAL Unit (Side-A)

[2] TERMINAL Unit

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9 – 9

Page 67

LC-32GP1U/LC-37GP1U 1st

10 11 12 13 14 15 16 17 18 19

9 – 10

Page 68

LC-32GP1U/LC-37GP1U 1st

k001

D521

FB509

FB503

R505

J507

C503

C507

C571

R506

R512

FB505

R510

FB508

R516

LUG501

R509

C570

J505

R515

C572

C505

C508

FB507

R513

R501 FB501

C501

J509

R502

FB504

J502

FB511

R520

FB516

R528

FB513

R524

J508

FB510

R518

Q507

R592

J506

C557

R544

J501

R589

FB523

R560

D7506

D7505

FB515

FB7504

R7517

SC7501

FB7502

R7516

R7513

FB7506

R7512

C7506

IC7501

C7501

C7502

C7505

C7504

C7503

IC2704

R2715

C2751

R2726

R2717

R2730

Q2702

Q2701

Q2703

R2731

R2734

R2728

R2729

C2754

R2733

R2732

C2756

R2727

C554

C547

C546

C532

FB520

R527

D513

R550

D516

D515

D517

R526

R549

D514

R582 R584

R581

R557

R558

R602

C536

C537

R521

R522

D512

FB512

R555

C534

C535

R556

C533

R554

Q506

R583

R548

Q505

R588

C512

C556

C528

C530

C553

C529

R575

R576 R578

Q508

R594

C538

Q504

R577

R559

Q503

Q509

C524

C552

R593

R569

C527

R570 R572

C515

C526

C567

R587

C555

IC501

Q501

Q502

R571

R542

C564

R590

C551

C548

C525

R596

R595

R591

C510 D511

R541

R539

C569

D504

C540

R517

R564

R597

R537

D510

C542

R523 C514

C583

R561

R536

C573

D509

R605 C502

R529 C516

C523

IC503

C586

C574

C521

D519

C541

R565

R603

R538

R519

C588

R610

D505

R608

C544

R567

R601

R607

C543

R609

R604

R566

R568

C545

R563

C520

D522

R644

R658

R654

C560

R660

C587

D507

R642

R659

R525

Q520

R645

C562

R643

R657

FB514

C575

Q516

R532

D523

R641

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 R27

TERMINAL Unit (Side-A Chip)

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9 – 11

Page 69

LC-32GP1U/LC-37GP1U 1st

FB7502

R7516

R7513

FB7506

R7512

C7506

IC7501

C7501

C7502

C7505

C7504

C7503

FL501

R612

FB532

R613

FB533

FL502

FB531

FL503

R611

R614

P502

R615

R616

FL504

R617

C2742

FB2709

D2707

R618

C2740

R619

FB2710

C2733

FB534

D2706

C2739

P2703

C2734

FB2711

D2705

C2738

LUG2701

C2741

FB2712

D2704

C2737

R2714

C2729

R2713

C2731

L2704

L2703

C2726

C2725

C2705

C2707

C2710

C2708

R2719

FB2704

C2703

C2714

C2701

C2715

C2702

C2746

C2712

C2704

C2713

IC2701

R2701

C2747

R2702

C2716

R2703

C2720

R2705

R2704

C2709

C2706

C2745

R2706

C2711

L2701

L2702

C2727

C2728

C2732

R2723

R2722

C2730

R2707

C2719

R2708

IC2703

C2722

R2710

C2723

R2711

C2721

R2709

R2721

R2712

IC2702

R2720

C2724

C2743

D2702

C2735

C2753

C2755

LF1

C2750

R2718

C2752

R2716

C2748

C2736

IC2704

R2715

C2751

R2726

R2717

R2730

Q2702

Q2701

Q2703

R2731

R2734

R2728

R2729

C2754

R2733

R2732

C2756

R2727

C568

C566

C2749 R2725

R2724

D2703

R2735

P2704

C2718

LUG2702

D2701

C2717

C2744

10 11 12 13 14 15 16 17 18 19

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Page 70

LC-32GP1U/LC-37GP1U 1st

TERMINAL Unit (Side-B)

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Page 71

LC-32GP1U/LC-37GP1U 1st

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Page 72

LC-32GP1U/LC-37GP1U 1st

[3] R/C, LED Unit

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

R132

C104

D101

SLD101

IC101

R135

C105 R136

P101

C107

RMC101

R101

C102

R117

Q105

Q103

R111

R113

R121

R112 R114

R123

Q106

R109

R126

R124

Q104

D103

D114

D115

R102 R137 R108

Q102

D113

R127

Q107

R122

R138

R110 R105

R106 R104 R107

C106

J101

R115

123456

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Page 73

[4] KEY Unit

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

LC-32GP1U/LC-37GP1U 1st

123456

9 – 16

Page 74

LC-32GP1U/LC-37GP1U 1st

[5] GAME Unit

GAME Unit (Side-A)

123456

9 – 17

Page 75

LC-32GP1U/LC-37GP1U 1st

R801 R853

SC801

GAME Unit (Side-A Chip)

J802

R802

D805

R808

R833 R868

L801

L802

L803

L804

FB804

FB805

R837 R815

D804

R867

VA801

VA805 VA802

VA806 VA803

VA807 VA804

VA808

R838

R816

R813

C821

R840

C818

R806

R817

C804

R839

R807

Q801

C803

C805 C806

R803

R845 R842

Q802

R814

Q803

C808 C811

C810 C809

IC802

R844 R843

C824

D802

R822

R821

C801

D801

C825

C802

R820

R841

R830

R823

R826 R827

R866

R828

C816 C817

C807

C822

R829

D810

R864

R832

C814

D809

C815

R805

L805

L806

L807

L808

R810

IC801

C819

R811

R865

D808

R834

R835

R836

C823

SC802

P803

D811

FB806

R812 R809

D807 D806

LUG801

FB801

D803

R804

R831

R825

FB802

R819

FB803

R824

R818

C812

C813

P801 P802

C820

R862

Q804

FB807

FB808

R863

R861

Q805

J801

123456

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Page 76

LC-32GP1U/LC-37GP1U 1st

CHAPTER 10. SCHEMATIC DIAGRAM

Service Manual

[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.

10 – 1

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