SHARP LC-32D62U, LC-37D62U Service Manual

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LC-32/37D62U SUPPLEMENT 1st

SERVICE MANUAL

No. S77M5LC32D62U

SUPPLEMENT

LCD COLOR TELEVISION

LC-32D62U

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.

LC-37D62U

OUTLINE

For this model, the main unit is changed. When servicing the product, use this manual with the service manual LC-32/37D62U (S17A9LC32D62U) already issued.

The new model can be identified with the following markings.

• The A character is added at the end of the model name on the model label.

• The A character is also added at the end of the model name on the number label (barcode label) of the

packing case.

• The serial product numbers (in the 5th thru 9th digits) are 51112 and on.

CONTENTS

OUTLINE AND DIFFERENCES FROM BASE MODEL

OUTLINE.................................................................... i

LIST OF CHANGED PARTS...................................... i

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY

PRECAUTION........................................................... ii

PRECAUTIONS A PRENDRE LORS DE LA

REPARATION ...........................................................iii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER .................................................................. iv

CHAPTER 5. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM (LC-32D62U) ........5-1

[2] OVERALL WIRING DIAGRAM (LC-37D62U) ........5-3

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

CHAPTER 6. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN Unit...............................................................6-1

CHAPTER 7. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM.........7-1

[2] MAIN Unit...............................................................7-2

CHAPTER 1. REMOVING OF MAJOR PARTS

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

CHAPTER 2. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ...............................2-1

CHAPTER 3. TROUBLE SHOOTING TABLE

[1] TROUBLE SHOOTING TABLE..............................3-1

CHAPTER 4. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS..................................4-1

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

Parts Guide

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

LC-32/37D62U SUPPLEMENT 1st

OUTLINE AND DIFFERENCES FROM BASE MODEL

Service Manual

OUTLINE

For this model, the main unit is changed.

When servicing the product, use this manual with the service manual LC-32/37D62U (S17A9LC32D62U) already issued.

The new model can be identified with the following markings.

• The character is added at the end of the model name on the model label.

• The character is also added at the end of the model name on the number label (barcode label) of the packing case.

• The serial product numbers (in the 5th thru 9th digits) are 51112 and on.

MAIN unit change model

A mark on the right side of the model name

HINDPC568WJSA

LC-32D62U LABEL2-U

LIST OF CHANGED PARTS

Ref. No. Description LC-32/37D62U

PRINTED WIRING BOARD ASSEMBLIES

R/C, LED Unit DUNTKD909FM02 ← — KEY Unit DUNTKD910FM02 ← — MAIN Unit DUNTKE028FM06 DUNTKE230FM06 Some parts changed TERMINAL Unit DUNTKD999FM07 ← — POWER Unit RDENCA203WJQZ ← —

LCD PANEL

32”LCD Panel Module Unit R1LK315D3LZ10Z ← — 37”LCD Panel Module Unit R1LK370D3LZ20Z ← —

MAIN Unit Please refer to a Parts list

CABINET AND MECHANICAL PARTS Please refer to a Parts list

PACKING PARTS AND ACCESSORIES Please refer to a Parts list

LC-32/37D62U

HINDPC569WJSA

LC-37D62U LABEL2-U

Note

LC-32/37D62U SUPPLEMENT 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 INUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

F701 (125V 8A) F4702 (250V 6.3A)

• 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.

LC-32/37D62U SUPPLEMENT 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 (125V 8A) F4702 (250V 6.3A)

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.

iii

LC-32/37D62U SUPPLEMENT 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

LC-32/37D62U SUPPLEMENT 1st

CHAPTER 1. 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, 3 lock screws and detach the Rear Cabinet. (LC-32D62U)

Remove the 9 lock screws, 4 lock screws and detach the Rear Cabinet. (LC-37D62U)

SD Card Cover

Front Cabinet

Stand Base Ass'y

Rear Cabinet

LC-37D62U Only

1 – 1

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.

LC-32/37D62U SUPPLEMENT 1st

MAIN Shield

LC-32D62U

Center Angle-R

Center Angle-L

LC-37D62U

Center Angle-R

Center Angle-L

Stand Fix Angle

Stand Area Cover

Stand Assist Angle

LC-37D62U

Stand Fix Angle

Stand Area Cover

LC-32D62U

Stand Assist Angle

1 – 2

LC-32/37D62U SUPPLEMENT 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

[F-RCA wire]

[KM]

[SP]

[LP]

[LV]

[LB]

[PH]

[PD]

[SA][FC][MA]

[RA]

[CN5] (32D62U) [CN4] (37D62U)

[CN1]

[CN2] (37D62U)

[CN4] (32D62U) [CN3] (37D62U)

[CN2] (32D62U)

[PH]

[PD]

[LB] (32D62U)

[LA]

[LB] (37D62U)

1 – 3

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

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

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

LC-32/37D62U SUPPLEMENT 1st

Tray Chassis

Speaker-R

Speaker-L

R/C, LED Unit

1 – 4

LC-32/37D62U SUPPLEMENT 1st

14.Remove the 2 lock screws and detach the Jack Angle.

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

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

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

MAIN PWB Radiator

MAIN Unit

POWER Unit

Jack Angle

TERMINAL Unit

1 – 5

18.Remove the 6 lock screws and detach the Rug Angle Top-L and R. (LC-32D62U)

Remove the 4 lock screws and detach the Rug Angle Top-L and R. (LC-37D62U)

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

20.Remove the 3 lock screws and detach the Chassis Fix Angle Top. (LC-32D62U)

Remove the 5 lock screws and detach the Chassis Fix Angle Top. (LC-37D62U)

21.Remove the LCD Panel Module.

LC-32/37D62U SUPPLEMENT 1st

LC-32D62U

Rug Angle Top-R

Rug Angle Bottom-R

Chassis Fix Angle Top

Rug Angle Bottom-L

Rug Angle Top-L

LC-37D62U

Rug Angle Top-R

Rug Angle Bottom-R

Chassis Fix Angle Top

Rug Angle Top-L

Rug Angle Bottom-L

1 – 6

LC-32/37D62U SUPPLEMENT 1st

CHAPTER 2. 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: DUNTKE230FM06

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 USB Memory.

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

2.2. Main software version upgrade

2.2.1 Get ready before you start

• USB Memory of 128MB or higher capacity.

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

• USB Memory reader/writer or PC with a USB port.

• The file system of a USB memory is FAT. (FAT32 is not applied)

• Use the USB memory without other functions. (lock and memory reader...etc)

2.2.2 Preparations

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

Follow the steps below and create the USB Memory for version upgrade.

1. Copy the file D62UAxxx.USB (named temporarily) for version upgrade to the root directory (folder) of the USB Memory.

NOTE: In the USB Memory drive, do not store other folders or unrelated files, or more than one file for version upgrade.

Now the USB Memory for version upgrade is ready.

2.2.3 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB Memory for version upgrade (prepared as above) into the service socket.

3. Plug in the AC cord with power button pressed down after 5 seconds, unpress the power button.

4. After the unit startup, the system upgrade screen as shown below appears within 20-40 seconds.

D62U

2 – 1

5. Even a single failure in the process will trigger the upgrade failure screen.

LC-32/37D62U SUPPLEMENT 1st

UPGRADE FAILURE

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

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

UPGRADE SUCCESS

D62U

7. Unplug the AC cord and remove the USB Memory for version upgrade.

8. Now the software version upgrade is complete.

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

software version information.

2 – 2

LC-32/37D62U SUPPLEMENT 1st

2.3. Monitor microprocessor software version upgrade

Create the USB memory for monitor microprocessor software version upgrade in the same manner as explained in the “Main software version upgrade”.

Copy the file D62UVAxx.USB and D62UMxxx.BIN (named temporarily) for monitor microprocessor software version upgrade to the USB memory.

2.3.1 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB memory for version upgrade (prepared as above) into the service socket.

3. Plug in the AC cord with power button pressed down.

4. After 5 seconds, unpress the power button.

CAUTION: • The moment this operation is done, the upgrading of the monitor microprocessor software starts. While the upgrade is ongoing, never

power off the unit. Otherwise the upgrade will fail and the system may be serious damaged beyond recovery (inability to start).

• After the monitor microprocessor software is upgraded, also perform the 'Industry Init'.

5. After the unit startup, the upgrade starts. The power led will blink continuously. Also, an upgrade screen will be shown during a minor upgrade.

D62U

6. If the upgrade fails, power led will stop blinking. Also, the upgrade failure screen will be shown if upgrade screen was shown at 5.

UPGRADE FAILURE

NOTE: In the event of a transient failure, upgrade will be automatically retried up to three times. If the process repeatedly fails, hardware may be the

cause.

7. Up on completion of the whole process, power and OPC LED will blink alternately. Also, the upgrade success screen will be shown if upgrade screen was shown at 5.

UPGRADE SUCCESS

D62U

8. Unplug the AC cord and remove the USB Memory for version upgrade.

9. Now the software version upgrade is complete.

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

itor microprocessor software version information and panel size information.

2 – 3

LC-32/37D62U SUPPLEMENT 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

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)

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

2) Description of display

(1) Current page/ (5) Destination

Total pages

1/32 [INFO] INPUT5 AUTO USA 46_UNDER

MAIN Version 1.00 (U 2007/07/11 RA)

BOOT Version D62U 1.01

Monitor Version 1.00 R

Monitor Boot Version 1.00

EQ DATA CHECKSUM ROM

TEMPERATURE 7B

LAMP ERROR 0

MONITOR ERR CAUSE

NORMAL STANDBY CAUSE

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

(2) Current page title

(3) Current selected input

(4) Current color system

00H 00M 00H 00M 00H 00M

4) 0 5) 0 00H 00M 00H 00M

(6) LCD Panel size/Speaker type

(LC-32D62U: 32_UNDER) (LC-37D62U: 37_UNDER)

(7) Adjustment

process menu header

(8) Parameters

2 – 4

LC-32/37D62U SUPPLEMENT 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 Monitor BOOT Version 5 EQ DATA CHECKSUM Audio data checksum 6 TEMPERATURE Panel temperature 7 LAMP ERROR Number of termination due to lamp error 8 MONITOR ERR CAUSE 9 NORMAL STANDBY CAUSE Refer to *1 under the list for details

10 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 Backlight Acutime 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 (INPUT1) CVBS and TUNER signal level adjustment

2 N358 ALL ADJ (INPUT2)

3 N358 MAIN ADJ (INPUT1) CVBS signal level adjustment

4 N358 MAIN ADJ (INPUT2)

5 TUNER DAC ADJ TUNER signal level adjustment

6 VCOM ADJ VCOM adjustment value

7 N358 CONTRAST A_GAIN

8 N358 CONTRAST D_GAIN

9 N358 CONTRAST OFFSET 10 TUNER CONTRAST A_GAIN 11 TUNER CONTRAST D_GAIN

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 INSPECT USB TERM

6 HDMI CEC TEST

5 [COMP15KMAIN]

1 COMP15K ADJ (INPUT1) Component 15K picture level adjustment (main)

2 COMP15K ADJ (INPUT3)

3 COMP15K Y A_GAIN

4 COMP15K Cb A_GAIN

5 COMP15K Cr A_GAIN

6 COMP15K Y D_GAIN

7 COMP15K Cb D_GAIN

8 COMP15K Cr D_GAIN

9 COMP15K Y OFFSET Y OFFSET adjustment value 10 COMP15K Cb OFFSET Cb OFFSET adjustment value 11 COMP15K Cr OFFSET Cr OFFSET adjustment value

2 – 5

LC-32/37D62U SUPPLEMENT 1st

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

6 [HDTV]

1 COMP33K ADJ (INPUT1) Component 33K picture level adjustment (main)

2 COMP33K ADJ (INPUT3)

3 COMP33K Y A_GAIN

4 COMP33K Cb A_GAIN

5 COMP33K Cr A_GAIN

6 COMP33K Y OFFSET Y OFFSET adjustment value

7 COMP33K Cb OFFSET Cb OFFSET adjustment value

8 COMP33K Cr OFFSET Cr OFFSET adjustment value

1 COMP67K ADJ (INPUT1)

2 COMP67K ADJ (INPUT3)

3 COMP67K Y A_GAIN

4 COMP67K Cb A_GAIN

5 COMP67K Cr A_GAIN

6 COMP67K Y OFFSET

7 COMP67K Cb OFFSET

8 COMP67K Cr OFFSET

8 [M GAMMA IN]

1 LEV1 Standard value 1 Adjustment gradation setting.

2 LEV2 Standard value 2

3 LEV3 Standard value 3

4 LEV4 Standard value 4

5 LEV5 Standard value 5

6 LEV6 Standard value 6

9 [M GAMMA R1]

1 MG1R WB adjustment Point 1, R adjustment value Parameter for six-point adjustment

2 MG1G WB adjustment Point 1, G adjustment value

3 MG1B WB adjustment Point 1, B adjustment value

4 MG2R WB adjustment Point 2, R adjustment value

5 MG2G WB adjustment Point 2, G adjustment value

6 MG2B WB adjustment Point 2, B adjustment value

7 MG3R WB adjustment Point 3, R adjustment value

8 MG3G WB adjustment Point 3, G adjustment value

9 MG3B WB adjustment Point 3, B adjustment value

10 [M GAMMA R4]

1 MG4R WB adjustment Point 4, R adjustment value Parameter for six-point adjustment

2 MG4G WB adjustment Point 4, G adjustment value

3 MG4B WB adjustment Point 4, B adjustment value

4 MG5R WB adjustment Point 5, R adjustment value

5 MG5G WB adjustment Point 5, G adjustment value

6 MG5B WB adjustment Point 5, B adjustment value

7 MG6R WB adjustment Point 6, R adjustment value

8 MG6G WB adjustment Point 6, G adjustment value

9 MG6B WB adjustment Point 6, B adjustment value

11 [SOUND 1]

1 Audio Switch

2 Flat Mode

3 ADC Volume 1

4 ADC Volume 2

5 ADC Volume 3

6 ADC Volume 4

7 ADC Volume 5

8 ADC Volume 6

9 LR Fanc Vol AIN 10 LR Fanc Vol HDMI 11 LR Fanc Vol ATV 12 LR Fanc Vol DTV 13 Input Trim

2 – 6

LC-32/37D62U SUPPLEMENT 1st

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

12 [SOUND 2]

1Eala

2 Eala Bass

3 Eala D

4 Eala Surround Gain

5 Eala Bass Surround Gain

6 Eala Bass LPF Fc

7 Eala Bass LPF Gain

8 Eala Bass Treble HPF F0

9 Eala Bass Treble HPF Gain 10 Eala Bass Output Gain 11 Eala Bass Attack Time 12 Eala Bass Release Time

13 [SOUND 3]

1 Eala D Surround Width

2 Eala D Bass Enhancer

3 Eala D Dialogue Boost

4 Eala D Bass Doubler

5 Eala D F0

6 Eala D DRC Ratio

7 Eala D DRC Threshold Level

14 [SOUND 4]

1EQ_MODE

2 PEQ1_F0

3 PEQ1_Q

4 PEQ1_GAIN

5 PEQ2_F0

6 PEQ2_Q

7 PEQ2_GAIN

8 PEQ3_F0

9 PEQ3_Q 10 PEQ3_GAIN

15 [SOUND 5]

1 PEQ4_F0

2 PEQ4_Q

3 PEQ4_GAIN

4 PEQ5_F0

5 PEQ5_Q

6 PEQ5_GAIN

7 PEQ6_F0

8 PEQ6_Q

9 PEQ6_GAIN 10 PEQ7_F0 11 PEQ7_Q 12 PEQ7_GAIN

16 [SOUND 6]

1 Output Trim

2 Clipper Level

3 Sub Vol Default

4 Sub Vol Eala

5 Sub Vol Eala Bass

6 Sub Vol Eala D

7 Sub Vol Eala Bass D

8 SW Fanc Vol AIN

9 SW Fanc Vol HDMI 10 SW Fanc Vol ATV 11 SW Fanc Vol DTV

2 – 7

LC-32/37D62U SUPPLEMENT 1st

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

17 [SOUND 7]

1 BE ATT

2 BASS VOL0 MIN

3 BASS VOL0 CENTER

4 BASS VOL0 MAX

5 BASS VOL60 MIN

6 BASS VOL60 CENTER

7 BASS VOL60 MAX

8 BASS CENTER ATT

18 [SOUND 8]

1 TREBLE VOL0 MIN

2 TREBLE VOL0 CENTER

3 TREBLE VOL0 MAX

4 TREBLE VOL60 MIN

5 TREBLE VOL60 CENTER

6 TREBLE VOL60 MAX

7 TREBLE CENTER ATT

19 [M PWM]

1 PANNEL SELECT

2PWM

3PWN FREQ

4 PWM DUTY

5OSC FREQ

6 OSC DUTY

20 [M BRI DA1]

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

21 [M BRI DA2]

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

22 [M BRI DA3]

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

2 – 8

LC-32/37D62U SUPPLEMENT 1st

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

23 [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

24 [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

25 [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

26 [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

27 [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

28 [M TEMP]

1BL TEMP1

2BL TEMP2

3BL TDUTY

29 [M EEP SET]

1 MONITOR TIME OUT

2 MONITOR MAX TEMP

3 MONITOR ERROE CAUSE RESET

30 [M TESTPTRN]

1 LCD TEST PATTERN

2 TV TEST PATTERN 1

3 TV TEST PATTERN 2

2 – 9

LC-32/37D62U SUPPLEMENT 1st

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

31 [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

6 EXECUTION

32 [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.

4 SETTING FOR ADJ

*1 Details of P1.9(NORMAL STANDBY CAUSE)

2 No operation off in the cause of “no operation off” 3 No signal off in the cause of “no signal off” 4 PC power management mode 1 in the cause of “Standby mode MODE1” 5 PC power management mode 2 in the cause of “Standby mode MODE2” 6 Off timer in the cause of “SLEEP timer” 8 Command from RS232C in the cause of command by RS-232C

*2 Details of P1.10(ERROR STANDBY CAUSE)

11 Prolonged unspecified-signal input in PC mode in the cause of continuous “out of range”, PC input mode

17 Temperature error in the cause of abnormal temperature 1A Monitor trouble detected in the cause of abnormal monitor mode 1B Fan lock in the cause of fan lock

6. Special features

* STANDBY CAUSE (Page 1/32)

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 32/32)

Storage of EEP adjustment value

* EEP RECOVER (Page 32/32)

Retrieval of EEP adjustment value from storage area

7. Video signal adjustment procedure

*Adjustment process mode menu is listed in section 5.

7.1. Signal check

Signal generator level adjustment check (Adjustment to the specified level)

• Composite signal : 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)

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

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

• Analog RGB : RGB level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)

7.2. Entering the adjustment process mode

Enter the adjustment process mode according to the steps described in section 3.

2 – 10

LC-32/37D62U SUPPLEMENT 1st

7.3. N358 composite signal adjustment (Tuner)

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment N358 signal Feed the NTSC (3.58) split field color bar signal (75% color saturation)

to VIDEO 1 input. Feed the RF signal (by use of US-10ch) to TUNER-A.

[Video input signal] [US-10CH]

100% white 100% white

2 Auto adjustment

performance

7.4. Component 15K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 480i signal Feed the 100% color bar signal to INPUT 1 component input.

Page 3/32 Bring the cursor on [•N358 ALL ADJ] and press [ENTER].

[•N358 ALL ADJ FINISH] appears when finished.

100% white

2 Auto adjustment

performance

Page 5/32 Bring the cursor on [•COMP 15K ADJ (INPUT 1)] and press [ENTER].

[•COMP 15K ADJ FINISH] appears when finished.

7.5. Component 33K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 1080i signal Feed the 100% color bar signal to INPUT 1 component input.

100% white

2 Auto adjustment

performance

Page 6/32 Bring the cursor on [•COMP 33K ADJ (INPUT 1)] and press [ENTER].

[•COMP 33K ADJ FINISH] appears when finished.

7.6. Component 67K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 1080p signal Feed the 100% color bar signal to INPUT 1 component input.

2 Auto adjustment

performance

100% Color saturation

100% white 0% black

Bring the cursor on [•COMP 67K ADJ (INPUT 1)] and press [ENTER]. [•COMP 67K ADJ OK] appears when finished.

2 – 11

7.7. Tuner/V-Chip test

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment NTSC RF signal

US-7 (AIR) ch

2 Auto adjustment

performance

LC-32/37D62U SUPPLEMENT 1st

Feed the NTSC signal to RF ANTENNA input.

Bring the cursor on [•TUNER VCHIP TEST (*07ch)] and press [ENTER]. (*Select the channel according to the RF signal.) [•A-OK (***.**)/VM-OK] appears in blue when finished. (If [A-NG/VMNG] appears in yellow or red, the test is incomplete.) Make sure a displacement of ±0.0625 MHz from the center frequency is acceptable.

2 – 12

LC-32/37D62U SUPPLEMENT 1st

8. Adjustment of white balance

8.1. White balance adjustment

Adjustment item Adjustment conditions Adjustment procedure

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

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 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.

[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 (192 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-32D62U/LC-37D62U” 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 1 192 X=0.272 ±0.0100 ±0.015

y=0.277

Point 2 WBI20352 MG2G**** MG2B**** MG2R****

Point 1 WBI10192 MG1G**** MG1B**** MG1R****

Writing MSET0003

Note Set conditions for inspection

AV MODE: [DYNAMIC] (Reset) Monochro: ON Active Backlight: OFF Aging Time: Min. 60 minutes

2 – 13

LC-32/37D62U SUPPLEMENT 1st

8.2. 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.

9. Initialization to factory settings

CAUTION: When initialization is performed, all user setting data including the channel settings are initialized. Be cautious when making this adjust-

ment.

(The adjustments done in the adjustment process mode are not initialized.)

Adjustment item Adjustment conditions Adjustment procedure

1 Initialization It turns off with AC power

supply.

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

Enter the adjustment process mode. Bring the cursor on to [INDUSTRY INIT] in page 2/32. Set to [ON] using [VOL] key, and press [ENTER] to execute the initialization. When the version number screen shows up on the green background and “SUCCESS” gets displayed at the top on screen, it means the procedure has been successfully carried out. (If an error occurs, “ERROR” is displayed on the red background.)

•Turn off the AC power. *Never shut off the power during the initialization process. The following settings are initialized in this adjustment.

1) User setting

2) Channel data (e.g. broadcast frequencies)

3) Password data

4) Operation time

5) Auto installation flag

6) V-CHIP block setting

2 – 14

LC-32/37D62U SUPPLEMENT 1st

10. Destination ID plug

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HDMI 1

HDMI 2

Optical Output

HDMI Audio L/R

RF IN

USB

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HDMI Audio L/R

RF IN

USB

BROADCOM

IC8001

Optical Output

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Tuner

TU1101

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2 – 15

MEMO

LC-32/37D62U SUPPLEMENT 1st

2 – 16

LC-32/37D62U SUPPLEMENT 1st

CHAPTER 3. TROUBLE SHOOTING TABLE

Service Manual

[1] TROUBLE SHOOTING TABLE

No video (1)

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 (J508) 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, Q502 and IC503 peripheral circuits, etc.).

YES

Is there the COMPOSITE video signal input at pin (2) of connector (SC2202) on the MAIN unit? NO Check the SC501 and

SC2202 connectors.

YES

Is there the COMPOSITE video signal input at pin (AN16) of IC8001 (CPU)? NO Check the line between

SC2202 and IC8001 (Q2212, etc.).

YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001? LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6),

LVDS_TX_0_DATA3_P/N(C5/B5), LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6), LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2), LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3).

YES Check the panel module.

NO Check IC8001 and its

peripheral circuits (IC8151 thru IC8154, etc.).

3 – 1

No video (2)

LC-32/37D62U SUPPLEMENT 1st

COMPONENT: No external input video

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

Select INPUT-1 on the input select menu screen for the right input signal.

Does the INPUT-1 C2.PLUG detection function? Does the INPUT-3 C1.PLUG detection function? Check the line between pin (6) of input terminal (J502) 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)?

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?

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

Are there the COMPONENT video signal inputs at pins(2),(4) and (6) of connector(SC2202) on the MAIN unit?

[INPUT-1]

YES

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

YES

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

YES

Check IC501 and its peripheral circuits.

NO Check the line between IC501 and SC501 (Q501 thru

NO Check the line between SC501 and SC2202 connectors.

COMPONENT: No external input video

Select INPUT-3 on the input select menu screen for the right input signal.

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

Check the line between the input terminals of J507 and IC501.

Q504, etc.).

[INPUT-3]

YES

Is there the COMPONENT video signal input at pin(16) of IC3201(SYNC)?

Check the line between SC2202 and IC3201 (Q2210, etc.).

[Format: 480i] Are there the COMPONENT video signal inputs at pins(AM21)(Y)/ (AN21)(Pb) and (AL21)(Pr) of IC8001(CPU)?

NO Check the line between the connector of SC2203 and IC8001(Q2204, Q2206 and Q2208, etc.).

YES

Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001? LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5), LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6), LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2), LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3).

YES NO

Check the panel module. Check IC8001 and its peripheral circuits.(IC8151 thru IC8154, etc.)

[Format: 480p/720p/1080i/1080p] Are there the COMPONENT video signal inputs at pins(10)(Y)/(4)(Pb) and (16)(Pr) of IC3301(ADC)?

NO Check the line between the connector of SC2202 and IC3301(Q2211, Q2209 and Q2213, etc.).

YES

[Format: 480p/720p/1080i/1080p] Are there the HD_DVI[29:0], HD_DVI_CLK_P, HD_DVI_VSYNC, HD_DVI_HSYNC, HD_DVI_DE signal outputs from IC3301?

NO Check IC3301 and its peripheral circuits.

YES

[Format: 480p/720p/1080i/1080p] Are there the HD_DVI[29:0], HD_DVI_CLK_P, HD_DVI_VSYNC, HD_DVI_HSYNC, HD_DVI_DE signal inputs to IC8001(CPU)?

NO Check the line between IC3301 and IC8001.

YES

3 – 2

LC-32/37D62U SUPPLEMENT 1st

S-VIDEO: No external input video [INPUT-2]

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

NO Does the INPUT-2 S3_PLUG detection function? Check the line between pin(6) of input terminal(J503) and pin(42) of IC501(AV_SW).

YES

Are there the S-VIDEO signal inputs at pins(5)(Y) and (7)(C) of IC501(AV_SW)?

NO Check the line between pins(3)(Y)/(4)(C) of J503 and

pins(5)/(7) of IC501.

YES Are there the S-VIDEO signal outputs at pins(2)(Y) and (4)(C) of connector(SC501) on the TERMINAL unit?

No video (3)

NO Check the line between IC501 and SC501 (Q501 thru Q504,

IC503 and peripheral circuit, etc.).

YES Are there the S-VIDEO signal inputs at pins(2)(Y) and (4)(C) of connector(SC2202) on the MAIN unit?

YES Are there the S-VIDEO signal inputs at pins(AL17)(Y) and (AL16)(C) of

IC8001(CPU)?

YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel

of IC8001? LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5), LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6), LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2), LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3).

YES Check the panel module.

NO Check the line between SC501 and SC2202 connectors.

NO Check the line between SC2203 and IC8001 (Q2205 and

Q2207, etc.).

Check IC8001 and its peripheral circuits.(IC8151 thru IC8154, etc.)

3 – 3

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-32/37D62U SUPPLEMENT 1st

No video (4)

Is there the analog video signal output at the output pin (13) of tuner (TU2201)?

YES

Is there the CVBS3 signal input at pin (AM19) of IC8001 (CPU)?

YES

Check the panel module. Check IC8001 and its peripheral circuits (IC8151 thru IC8154, etc.).

NO Check the tuner and their

peripheral circuits (TUN_SDA/SCL).

NO Check the line between

TU2201 and IC8001 (Q2214, etc.).

YES NO

Is there the video signal output at the output pins (19) and (20) of tuner (TU2201)?

YES

NO Check the line between pins

(AM33/AM34) of IC8001 and pins (19/20) of TU2201(L2205, C2255 and C2263, etc.)

3 – 4

LC-32/37D62U SUPPLEMENT 1st

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

Does the HOT PLUG detection function? Does the HDMI_DDC_5VPOW_IN1 signal come from pin (18) of connector (SC1601) to pin (32) of IC1604

(HDMI_SW)?

Does the signal come from pin (16) of IC1604 to pin (19) of SC1601?

YES

[HDMI signal input] No video (5)

No external input video [INPUT-4]

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

YES

NO Check the line between IC1604 and SC1601 (IC1608,

Check the line between SC1601 and IC1604 (R1727, etc.).

Q1605 and Q1602, etc.).

Does the signal come from connector (SC1601) to the input pins (18 and

19) (CLK±), (21 and 22) (D0±), (24 and 25) (D1±), and (27 and 28) (D2±), all of IC1604?

YES Does the signal come from pins (10 and 11) (CLK±), (7 and 8) (D0±), (4 and 5) (D1±), and (1 and 2) (D2±) of IC1604 to pins (57 and 58), (61 and

62), (65 and 66), and (69 and 70) of IC1502?

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 HD_DVI [29:0], HD_DVI_CLK, HD_DVI_DE, HD_DVI_VSYNC and HD_DVI_HSYNC signal inputs at IC8001 (CPU)?

YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of

IC8001? LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5), LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6), LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2), LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3).

NO Check IC1510 and its peripheral circuits.

NO Check the line between IC1502 and IC1604.

Is IC1601 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

Check the DDC line and its peripheral circuits (IC1601 (EEPROM) and its peripherals).

Check IC1502, IC1604 and their peripheral circuits.

Check IC8001 and its peripheral circuits (IC8151 thru IC8154, etc.).

Check the panel module.

YES

3 – 5

[HDMI signal input] No video (5)

No external input video [INPUT-5]

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

NO Select INPUT-5 on the input select menu screen for the right input signal.

NO Does the HOT PLUG detection function? Does the HDMI_DDC_5VPOW_IN2 signal come from pin

(18) of connector (SC1602) to pin (52) of IC1604 (HDMI_SW)?

YES Does the signal come from pin (36) of IC1604 to pin (19) of SC1602?

YES

Does the signal come from connector (SC1602) to the input pins (38 and 39) (CLK±), (41 and 42) (D0±), (44 and 45) (D1±), and (47 and 48) (D2±), all of IC1507?

LC-32/37D62U SUPPLEMENT 1st

NO Check the line between IC1604 and SC1602 (IC1609,

Check the line between SC1602 and IC1604 (Q1505, Q1507, etc.).

Q1606, Q1603).

Is IC1603 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C CLOCK/DATA data?

YES Does the signal come from pins (10 and 11) (CLK±), (7 and 8) (D0±), (4 and 5) (D1±), and (1 and 2) (D2±) of IC1604 to pins (57 and 58), (61

and 62), (65 and 66), and (69 and 70) of IC1502?

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 HD_DVI [29:0], HD_DVI_CLK, HD_DVI_DE, HD_DVI_VSYNC and HD_DVI_HSYNC signal inputs at IC8001

(CPU)?

YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001?

LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5), LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6), LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2), LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3).

Check the DDC line and its peripheral circuits (IC1603 (EEPROM) and its peripherals).

NO Check IC1510 and its peripheral circuits.

Check IC1502, IC1604 and their peripheral circuits.

Check the line between IC1502 and IC1604.

Check IC8001 and its peripheral circuits (IC8151 thru IC8154, etc.).

Check the panel module.

YES

3 – 6

LC-32/37D62U SUPPLEMENT 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 Set the audio output to “FIXED”.

YES

[INPUT-1] Does the audio signal come from pins (4) (L) and (2) (R) of input terminal (J508) to pins (8) (L) and (6) (R) of connector (SC502) on the TERMINAL unit?

Check the audio signal from J508 to SC502, and their peripheral circuits.

YES

[INPUT-1] Is there the audio signal input at pins (8) (L) and (6) (R) of connector (SC2201) on the MAIN unit?

NO Check the SC502 and SC2201 connectors.

YES

[INPUT-1] Does the audio signal come from pins (8) and (6) of SC2201 to pins (35) (L) and (36) (R) of IC1403 (CODEC)?

[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 YES

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

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.

YES

[INPUT-2] Is there the audio signal input at pins (12) (L) and (10) (R) of connector (SC2201) on the MAIN unit?

Check the SC502 and SC2201 connectors.

YES

[INPUT-2] Does the audio signal come from pins (12) (L) and (10) (R) of SC2201 to pins (37) (L) and (38) (R) of IC1403 (CODEC)?

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

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

“FIXED”.

YES

[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?

NO Check the audio signal from J505 to SC502, and their peripheral circuits.

YES

[INPUT-3] Is there the audio signal input at pins (4) (L) and (2) (R) of connector (SC2201) on the MAIN unit?

NO Check the SC502 and

SC2201 connectors.

YES

[INPUT-3] Does the audio signal come from pins (4) (L) and (2) (R) of SC2201 to pins (40) (L) and (41) (R) of IC1403 (CODEC)?

Check the line between SC2201 and IC1403 and their peripheral circuits.

YES

Does the audio signal come from pins(4)(COD_LRCK), (5)(COD_BCK) and (6)(COD_SDOUT) of IC1403 to pins(AK24), (AH24) and (AJ24) o IC8001(CPU)?

YES Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN), (AL25)(DSP_SDIN1) and (L32)(DSP_SDIN2) of IC8001 to pins(2), (3), (6) and (5) of IC1402(SOUND_DSP)?

YES Does the audio signal come from pins(19)(DSP_SDOUT1) and (21)(DSP_SDOUT3) of IC1402 to pins(11) and (12) of IC1403(CODEC)?

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN) and (AL24)(DSP_MCLK) of IC8001 to pins(8), (9) and (10) of IC1403?

YES Does the audio signal come from pins(17)(SP_L) and (18)(SP_R) of IC1403 to pins(11)(SP_L) and (14)(SP_R) of connector(SC2203) on the MAIN unit?

Check the line between SC2201 and IC1403 and their peripheral circuits.

YES

Check the line between SC2201 and IC1403 and their peripheral circuits.

YES

Check the line between IC1403 and IC8001.

Check the line between IC8001 and

IC1402.

NO Check the line between IC1402 and

IC1403.

NO Check the line between IC8001 and

IC1403.

NO Check the line between SC2203 and

IC1403(Q1313, Q1314, etc.).

3 – 7

LC-32/37D62U SUPPLEMENT 1st

YES Are there the audio signal inputs at pins(11)(L_CH) and (14)(R_CH) of connector(P2704) on

the TERMINAL unit?

YES Does the audio signal come from pins(11)(L_CH) and (14)(R_CH) of P2704 to pins(5)(L_CH)

and (3)(R_CH) of IC2701(AMP) on the TERMINAL unit?

YES Is the audio output from IC2701 as specified? NO Check IC2701 and its peripheral circuits.

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

NO Check the line between P2704 and

SC2203.

Check the line between P2704 and

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

3 – 8

LC-32/37D62U SUPPLEMENT 1st

No audio (2)

[HDMI analog audio input] INPUT-5 No audio.

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

NO Is the audio output selected for “VARIABLE” on the menu screen? Set the audio output to “FIXED”.

Is the HDMI audio output selected for “Digital” on the menu screen? Set the HDMI audio output to “Analog”.

YES

Does the audio signal come from pins(4)(L) and (2)(R) of input terminal(J1601) to pins(43)(L) and (44)(R) of IC1403(CODEC) on the MAIN unit?

YES

Does the audio signal come from pins(4)(COD_LRCK), (5)(COD_BCK) and (6)(COD_SDOUT) of IC1403 to pins(AK24), (AH24) and (AJ24) of IC8001(CPU)?

Check the line between J1601 and IC1403, and their peripheral circuits.

YES

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN), (AL25)(DSP_SDIN1) and (L32)(DSP_SDIN2) of IC8001 to pins(2), (3), (6) and (5) of IC1402(SOUND_DSP)?

YES

Does the audio signal come from pins(19)(DSP_SDOUT1) and (21)(DSP_SDOUT3) of IC1402 to pins(11) and (12) of IC1403(CODEC)?

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN) and (AL24)(DSP_MCLK) of IC8001 to pins(8), (9) and (10) of IC1403?

YES Does the audio signal come from pins(17)(SP_L) and (18)(SP_R) of IC1403 to pins(11)(SP_L) and (14)(SP_R) of connector(SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins(11)(L_CH) and (14)(R_CH) of connector(P2704) on

the TERMINAL unit?

YES Does the audio signal come from pins(11)(L_CH) and (14)(R_CH) of P2704 to pins(5)(L_CH) and (3)(R_CH) of IC2701(AMP) on the TERMINAL unit?

NO Check the line between IC1403 and IC8001.

NO Check the line between IC1402 and

NO Check the line between IC8001 and

NO Check the line between SC2203 and

NO Check the line between P2704 and

Check the line between IC8001 and IC1402.

IC1403.

IC1403(Q1313, Q1314, etc.).

SC2203.

Check the line between P2704 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

YES

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

cuits.

YES

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

3 – 9

LC-32/37D62U SUPPLEMENT 1st

No audio (3)

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

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

NO Is the audio output selected for “VARIABLE” on the menu screen? Set the audio output to “FIXED”. Set the audio output to “FIXED”.

YES

Is there the SIF signal output at pin(15) of tuner(TU2201) on the MAIN unit?

NO Check the tuner(TU2201) and its peripheral circuits. Check the tuner(TU2201) and its peripheral circuits.

YES

Does the SIF signal come from pin(15) of TU2201 to pin(AN23) of IC8001(CPU)?

NO Check the line between IC8001 and TU2201 (Q2201, Q2202, etc.).

YES

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN), (AL25)(DSP_SDIN1) and (L32)(DSP_SDIN2) of IC8001 to pins(2), (3), (6) and (5) of IC1402(SOUND_DSP)?

YES Does the audio signal come from pins(19)(DSP_SDOUT1) and (21)(DSP_SDOUT3) of IC1402 to pins(11) and (12) of IC1403(CODEC)?

Are there the video signal outputs (IF_OUT_P/N) at the pins(19) and (20) of tuner(TU2201) on the MAIN unit?

Are there the video signal inputs at pin(AM33) and (AM34) of IC8001(CPU)?

Check the line between IC8001 and IC1402.

NO Check the line between IC1402 and IC1403.

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

YES

Check the line between IC8001 and TU2202 (L2205, C2255, etc.).

YES

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN) and (AL24)(DSP_MCLK) of IC8001 to pins(8), (9) and (10) of IC1403?

YES Does the audio signal come from pins(17)(SP_L) and (18)(SP_R) of IC1403 to pins(11)(SP_L) and (14)(SP_R) of connector(SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins(11)(SP_L) and (14)(SP_R) of con-

nector(P2704) on the TERMINAL unit?

YES Does the audio signal come from pins(11)(L_CH) and (14)(R_CH) of P2704 to pins(5)(L_CH) and (3)(R_CH) of IC2701(AMP) on the TERMINAL unit?

YES Is the audio output from IC2701 as specified? NO Check IC2701 and its peripheral circuits.

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

NO Check the line between SC2203 and IC1403 (Q1313,

NO Check the line between P2704 and SC2203.

NO Check the line between P2704 and IC2701, and their

Check the line between IC8001 and IC1403.

Q1314, etc.).

peripheral circuits (AMP_MUTE line, etc).

3 – 10

LC-32/37D62U SUPPLEMENT 1st

INPUT-4 No audio (HDMI connected) INPUT-5 No audio (HDMI connected)

No audio (4)

[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?

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

YES Is the HDMI_MUTE line as specified? NO Check Q1301, IC1302 and their peripheral

YES Does the HDMI_SPDIF signal come from pin (78) of IC1502(HDMI-Rx) to pins(AM11) and (AN11) of IC8001(CPU)?

YES Does the audio signal come from pins(4)(COD_LRCK), (5)(COD_BCK) and

(6)(COD_SDOUT) of IC1403 to pins(AK24), (AH24) and (AJ24) of IC8001(CPU)?

YES Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN), (AL25)(DSP_SDIN1) and (L32)(DSP_SDIN2) of IC8001 to pins(2), (3), (6) and (5) of

IC1402(SOUND_DSP)?

YES Does the audio signal come from pins(19)(DSP_SDOUT1) and (21)(DSP_SDOUT3) of

IC1402 to pins(11) and (12) of IC1403(CODEC)?

NO Check the line between IC1502 and IC8001,

NO Check the line between IC1403 and IC8001.

NO Check the line between IC1402 and IC1403.

Is the audio output selected for “VARIABLE” on the menu screen? Set the audio output to “FIXED”.

circuits.

and their peripheral circuits.

Check the line between IC8001 and IC1402.

Does the audio signal come from pins(AJ25)(DSP_LRCK), (AK25)(DSP_BCKIN) and (AL24)(DSP_MCLK) of IC8001 to pins(8), (9) and (10) of IC1403?

YES Does the audio signal come from pins(17)(SP_L) and (18)(SP_R) of IC1403 to pins(11)(SP_L) and (14)(SP_R) of connector(SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins(11)(L_CH) and (14)(R_CH) of connec-

tor(P2704) on the TERMINAL unit?

YES Does the audio signal come from pins(11)(L_CH) and (14)(R_CH) of P2704 to pins(5)(L_CH) and (3)(R_CH) of IC2701(AMP) on the TERMINAL unit?

YES Is the audio output from IC2701 as specified? NO Check IC2701 and its peripheral circuits.

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

NO Check the line between IC8001 and IC1403.

NO Check the line between SC2203 and

IC1403(Q1313, Q1314, etc.).

NO Check the line between P2704 and SC2203.

Check the line between P2704 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

3 – 11

LC-32/37D62U SUPPLEMENT 1st

No audio signal at Digital Audio Output terminal (Analog sound heard)

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

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

Is the HDMI_MUTE line as specified? Check the tuner(TU2201) and its peripheral circuits.

Check Q1301, IC1302 and their peripheral circuits. Are there the video signal inputs at pins(AM33) and (AM34) of

YES

Does the HDMI_SPDIF signal come from pin (78) of IC1502(HDMI-Rx) to pins(AM11) and (AN11) of IC8001(CPU)?

NO Check the line between IC1502 and IC8001, and their peripheral circuits.

YES

Is there the SPDIF signal (OPT_OUT) output at pin(AP11) of IC8001(CPU)?

YES

Is there the SPDIF signal (OPT_OUT) input at pin(2) of IC1304(SPDIF_BUFF&MUTE)?

YES

Is there the MUTE signal input at pin(1) of IC1304? NO Check the MUTE_A_ALL and ACDET signals, and their peripheral

NO Check the line between IC8001 and IC1304.

Are there the video signal outputs (IF_OUT_P/N) at the pins(19) and (20) of tuner(TU2201) on the MAIN unit?

YES

IC8001(CPU)?

NO Check the line between IC8001 and TU2201 (L2205, C2255, etc.).

YES

Check the IC8001 and its peripheral circuits.

circuits(Q1304, Q1312, D1310, etc.).

YES

Is there the SPDIF signal input at pin(1) of D1306(OPTICAL OUTPUT)?

YES

Check the speakers and their peripheral circuits.

NO Check D1306 and its peripheral circuits.

No optical output under the following conditions as per HDMI requirements. *Audio contents protected. *Audio frequency beyond 48kHz. *Audio bit length beyond 16bits.

3 – 12

LC-32/37D62U SUPPLEMENT 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 (24) (L) and (25) (R) of IC1403 (CODEC)?

YES Are the audio signal inputs at pins (3) (L) and (5) (R) of IC1407 (Adder & Active LPF)?

YES Are the audio signal outputs at pins (1) (L) and (7) (R) of IC1407?

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

connector (SC2201) 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/SDA0) and IC1403. Replace as

required.

NO Check IC1403 and its peripheral circuits. Replace as

required.

NO Check the line between IC1403 and IC1407, and their

peripheral circuits.

NO Check IC1407 and its peripheral circuits. Replace as

required.

NO Check the line between IC1407 and SC2201, and their

peripheral circuits.

NO Check the SC2201 and SC502 connectors.

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

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

3 – 13

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 red LED operation (1 cycle) Pins are microprocessor pins.

Lamp failure Flashes once: Fast

Power failure Flashes twice

Communication failure with main CPU Flashes 3 times

H: On

L: Off

H: On

L: Off

H: On

L: Off

LC-32/37D62U SUPPLEMENT 1st

L_FL_ERR (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 counts are cleared to 0 when the corresponding setting in the 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.

Vsync Failure Flashes 4 times

Monitor temperature failure Flashes 5 times

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

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

PS_ON DET_10V failure Flashes once

DET_D3V3 failure Flashes twice

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

VSYNC (pin 52) failure (uninput). Operation failure. Detected during operation (interruption). Detected during operation (interruption).

If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD of AVC (flashes in red in the lower right screen). If the panel temperature is 60°C or more for 25 seconds or more in a row, error standby is activated. (MONITOR MAX TEMP on page 23 of process A: Change of temperature failure AD value): Thermistor

DET_10V (pin 57). UR10V or A9V is not applied. If error is detected during operation, the power is turned on again by interrupt handling (instantaneous blackout processing).

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.

PNL_12V failure Flashes 5 times

Main failure Flashes 7 times

H: On

L: Off

H: On

L: Off

DET_PNL_12V (pin 58) failure (L). Panel power is not applied. If error is detected during operation, error standby is activated by polling.

Main microprocessor detection error. The details are displayed in “ERROR STANDBY CAUSE” on page 1 of process A for the main microprocessor.

3 – 14

LC-32/37D62U SUPPLEMENT 1st

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

Error type Notification LED operation (1 cycle)

Initial communication reception failure Flashes once

H: On

L: Off

Initial communication from the main CPU is not received. (After canceling the reset, request for the monitor model No. is not received.) Communication line failure or main CPU start-up failure.

Basically, communication logs are analyzed by a bus

monitor or debug print logs are analyzed.

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

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.

3 – 15

LC-32/37D62U SUPPLEMENT 1st

CHAPTER 4. MAJOR IC INFORMATIONS

Service Manual

[1] MAJOR IC INFORMATIONS

1. IC3201 (VHiTB1305FG-1Q)

The TB1305FG has function sync separation and H/V format detector for TV component video signals. (INPUT1/3 and INPUT7)

This IC is controlled by I2C Bus interface.

2. IC3301 (VHiTHC7981+-1Q)

The THC7981 is 10bit A/D Converter for analog video signal.

(Component: INPUT1 and 3, analog RGB: INPUT7)

This IC is controlled by I2C Bus interface and corresponds from 10 to 170MSPS for Full spec HD-TV.

3. IC501 (VHiMM3151XQ-1Q)

This I2C bus-controlled video switch is designed to switch between two-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 IC8001 (iXC138WJQZ).

4. IC2701 (VHiTPA3100D-1Y)

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

The analog audio signal from IC501 or INPUT-6 (HDMI-analog audio) or INPUT-7 input terminal is fed into this IC for selection.

The selected signal flows through A/D-unit into the video signal processing circuit IC8001 (iXC138WJQZ).

The digital audio signal (I2S) from IC1402 flows into audio power amplifier IC2701 and AUDIO OUTPUT terminal via each D/A-unit.

5. IC8001 (RH-iXC138WJQZQ)

This LSI is FULL HIGH-DEFINITION 1080p DIGITAL TV SYSTEM-ON-A-CHIP. It combines a cable/terrestrial 4/1024-QAM and 8/16-VSB receiver, a transport processor, a digital audio processor, a high definition (HD) MPEG video decoder, 2D graphics processing, digital processing of analog video and audio, analog video digitizer and DAC functions, stereo high-fidelity audio DACs, a 330-MHz millions of instructions per second (MIPS) processor, and a peripheral control unit providing a variety of television control functions.

The cable/terrestrial receiver directly samples a tuner output with an analog-to-digital (ADC) converter. The LSI digitally resamples and demodulates the signal with recovered clock and carrier timing, filters and equalizes the data, and passes soft decisions to an ATSC A/53 and ITU-T J.83 Annex A/ B/C-compatible decoder. It has an MPEG-2 Digital Video Broadcasting (DVB)-compliant transport processor with advanced section filtering capability, DVB descrambler, and an MPEG-2 (MP@HL profile) video decoder.

Audio support includes a BTSC and a Dolby AC3/MPEG-2 Layer 1, 2, audio decoder. The LSI provides analog and digital audio/video outputs. A SPDIF output and a pair of analog outputs (L-R) are provided via the integrated audio DACs. The NTSC analog video decoder is supported by its own motion adaptive deinterlacing and 3D comb filtering, including 1080i deinterlacing.

The LSI includes advanced 2D graphics processing. Two transport stream inputs are included. The LSI incorporates a complete MIPS32(r)-based microprocessor subsystem including caches with bridging to memory and a local bus, where external peripherals can be attached. Integrated peripherals include two USB 2.0, three UARTs, counter/timers and GPIO controllers.

6. IC1502 (VHiSii9125+-1Q)

The Sii9125 supports the HDMI v1.3 specification and allows receipt of 10/12-bit color depth up to 1080p resolutions.

A single Sii9125 provides two HDMI input ports.

This IC decodes TMDS signal to Digital Video signal.

Compatible with the HDCP system, encrypted signals can also be received.

This IC responds to the INPUT-4, 5, 6 HDMI (High-Definition Multimedia Interface) selected by IC1604.

7. IC1604 (VHiSii9185+-1Q)

The Sii9185 is the TMDS Switch devices supporting Revision 1.3 of the HDMI Specification.

This IC is used to select a single set of HDMI/DVI signals from one of three HDMI/DVI receiver-ports, and to generate a fully compliant HDMI/DVI stream as an output.

It also provides DDC/HDCP, HPD, and +5V switching to allow full compliance to the HDMI/DVI Specification.

On this IC, the INPUT-4, 5, 6 HDMI port are switched.

4 – 1

LC-32/37D62U SUPPLEMENT 1st

8. IC803 (VHiSii9181+-1Q)

The Sii9181 is TMDS Switch devices supporting Revision 1.3 of the HDMI Specification.

It is a single HDMI input, single output device used to buffer the TMDS signal.

The Sii9181 is used to receive a set of HDMI/DVI signals from the HDMI/DVI receiver-port, and to generate a HDMI/DVI fully compliant stream as an output.

It also provides DDC/HDCP, HPD, and +5V switching to allow full compliance to the HDMI/DVI Specification.

On this IC, the INPUT-4 HDMI port is switched.

9. IC2002 (RH-iXB986WJN7Q)

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

10. IC8452 (RH-iXC274WJQZQ)

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

4 – 2

MEMO

LC-32/37D62U SUPPLEMENT 1st

4 – 3

LC-32/37D62U SUPPLEMENT 1st

Main Unit

E230

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LC-32/37D62U SUPPLEMENT 1st

CHAPTER 5. OVERALL WIRING/BLOCK DIAGRAM

Service Manual

[1] OVERALL WIRING DIAGRAM (LC-32D62U)

12345678910

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RDENCA203WJQZ

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LC-32/37D62U SUPPLEMENT 1st

10 11 12 13 14 15 16 17 18 19

5 – 2

LC-32/37D62U SUPPLEMENT 1st

Main Unit

E230

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[2] OVERALL WIRING DIAGRAM (LC-37D62U)

12345678910

5 – 3

POWER㵘UNIT

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LC-32/37D62U SUPPLEMENT 1st

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LC-32/37D62U SUPPLEMENT 1st

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10 11 12 13 14 15 16 17 18 19

5 – 6

LC-32/37D62U SUPPLEMENT 1st

MAIN Unit (Side-A)

LC-32/37D62U SUPPLEMENT 1st

CHAPTER 6. PRINTED WIRING BOARD ASSEMBLIES

Service Manual

[1] MAIN Unit

12345678910

6 – 1

LC-32/37D62U SUPPLEMENT 1st

10 11 12 13 14 15 16 17 18 19

6 – 2

LC-32/37D62U SUPPLEMENT 1st

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LC-32/37D62U SUPPLEMENT 1st

10 11 12 13 14 15 16 17 18 19

6 – 4

LC-32/37D62U SUPPLEMENT 1st

MAIN Unit (Side-B)

12345678910

6 – 5

LC-32/37D62U SUPPLEMENT 1st

10 11 12 13 14 15 16 17 18 19

6 – 6

LC-32/37D62U SUPPLEMENT 1st

MAIN Unit (Side-B Chip)

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TL2211

TL2213

TL2215

TL2212

TL2206

TL2208

TL2210

TL8007

TL8006

TL8005

C2238

TL8004

TL8034

C2244

TL8036

TL8037

R2296

R2295

C2241

TL8038

TP2214

C2236

R2258

R2248

TL8035

C2218

Q2202

TL9042

R2220R2221

TL9041

Q2201

TL9040

R2214

R2215

R2216

R2212

C2213

TL2201

TL9039

R2211

R2209

TL1602

TL2267

TL2266

TL2265

TL2263

TL2262

TL1603

TL1601

TL1605

TL1610

TL1608

R2271

R2259

R2264

R2286

R3212

Q2210

C3232

R3235

TL1303

R2244

R3209

R3208

C3231

R2267R2263

TL1304

LUG2211

R2285

C3221

Q2209

C3222

TL1302

C3224

R3224

R3233

R2291R2287

R2293

Q2211

R2302

R2303

R3234

R2289R2292

TL1

TL2297

R224

R228

R8007

R8010

R8009

Q2205Q2206

TL2292

R2246

R2241R2239

TL9386

R2288

R2242

R2283

TL2296

TL9303

R8018

Q2207Q2204

TL2295

TL9385

R2250R2245R2240

R2233

TL2294

R2282

R8453

TL8457

C2253

R9312

TL2293

R2299

Q2212

R2270R2269

TL9323

R8475

TL8455

C8461

R8474

TL8454

R2305

R2304

IC8454

C8462

C8460

TL8453

TL8456

LUG2212

TL2231

TL2230

TL2202

TL2261

TL2237

TL2235

TL2234

TL2233

C2204C2201

R2205

R2204

R2203

R2281

FB2202

FB2201

R2310

C2206

R2280R2306

R2308

R2309

R2217

Q2214

R2307

C2202

R2222

R2223

C2229

C2228

C2225

C2219

C2230

R2227

C2237

R2232

R2228

R2224

IC2203

R2261

C2234

C2232

R2243

R2229

C2227

C2226

C2223

C2222

C2224

C1462

R1461

R1431

R1453

R1454

R1432

R1459

C1461

R1458

R1460

IC1407

C1464

R1457

C1460

R1456

R1462

C1465

TL2214

TL2216

R1451

R1455

C1459

TL2222

TL2224

TL2226

R1452

TL2218

TL2241

TL2243

TL2245

TL2247

TL2249

TL2251

TL2253

TL2220

TL2239

R2202

TL2223

TL2217

TL2219

TL2221

R2201

TL2246

TL2225

TL2227

TL2238

TL2240

TL2242

TL2244

TL2248

TL2250

TL2252

TL2260

TL2254

TL2256

TL2258

TL2268

TL2270

TL2272

TL2274

TL2276

TL2278

TL2280

TL2282

TL2284

TL2286

TL2288

TL2290

C2212

C2209

C2208

FB2203

FB2204

FB2205

tptp1

TL2255

TL2269

TL2271

TL2273

TL2275

TL2277

TL2279

TL2281

TL2283

TL2285

TL2287

TL2289

TL2259

C2207

TL2257

FB2206

Q1307

Q1313

Q1314

TL9219

TL9210

TL9212

R1318

R1330

R1317

R1329

R1315R1314

TL9209

TL9211

TL9213

C1303

R9201

C9003

R1302

R9205

R9024

R9022

Q9001

IC9001

R1301

TP9001

R1336

R9023

tptp2

R1308

R9002

D1312

R1341

D1304

IC1301

D1314

D1313

D1301

D1307

D1302

R1312

D1309

D1308

R1322

C1421

C1422

R1338

R1309

R1335

Q1309

R1304

R1422

R1425

Q1304

D1310

C1410

C1413

R1337

D1305

R1323

C1440C1441

C1429

C1430

C1314

D1311

R1416

R1418

C1414C1423

R1415

C1415

C1424

R1414

C1426

R1404

C1425

R1405

R1428

C1434

TP2008

TP2004

R1406

TP2015

R1427

C1433

IC1403

R1407

TP2006

R1408

TP2005

C1431

R1429

C1427

R1409

C1428

R1410

R2012

C1432

R1430

TP2001

TP2014

R1411

TP2002

C1406

C1407

TP2003

R1426

C1409

TP2011

TP2013

C1408

R2014

R2072

C1419

TP2007

R1450

R1423

R1413

C1405

TP2009

R1403

R1449

R1412

R9641

C1402

IC1401

IC1402

C1403

C1411

C1412

R1417

C9641

R9645

R1419

R9643

R9644

C9643

R1421

R1420

R1401R1402

C1417

C9645

R9647

C9642

R9646

C1418

X1401

R9642

R9649

C9644

R9648

TL9604

C1401

C1404

C9622

C9621

C9620

D9604

TL8510

TL8511

TL8509

TL8512

R8514

R8515

R8513

R8512

TL9603

TL8504

C9631

TL8503

C9619

TL9351

C9618

TL9302

TL9357

TL9354

TL9348

TL9345

TL9343

TL9340

TL9338

TL9353

TL9381

TL9301

TL9355

TL9349

TL9346

TL9341

TL9380

TL9339

TL9337

TL9378

TL9359

TL9375

TL9350

TL9347

TL9344

TL9342

TL9352

R8509

C8514

X8501

R8508

C8513

TL9379

TL9326

TL9336

TL9328

C8512

TL9331

TL9314

TL9312

C8508

TL8508

R9306

TL9320

C8510

TL9315

TL9310

C8509

TL9311

TL9383

TL9313

C8507

TL9316

R8510

R8511

C8511

TL9382

TL9321

TL9324

TL9384

TL9329

TL9332

TL9335

C8515

TL9317

TL9318

TL8502

TL8505

TL8501

TL8507

TL9319

TL9322

TL9325

TL9327

TL9330

TL9333

TL9334

R8506

TL8506

R8507

C8229

C8178C8176

C8228

C8206

C8205

R8214

C8193

IC8155

R8223

R8224

R8213

C8194

C8195

R8270

C8216

C9721

TL9725

IC9705

TL9710

TL9739

TL9738

C9719

TL9723

TL9737

TL9740

TL9727

R9740

R9741

TL9702

IC9706

TL9741

R9742

C9720

TL9726

R9743

TL9711

TL9742

R9744

C9708

TL9728

TL9720

D9603

D9602

R9702

TL9715

TL9743

R9701

D9606

R9615

TL9736

TL9735

D9644

TL9744

C9613

C9648

D9702

TL9601

R9736R9704

C9709

C9711

TL9701

D9713

Q9641

D9641

Q9701

Q9702

R9705

D9703D9701

TL9729

R9650

TL9724

TL9731

C9647

IC9641

TL9708

TL9722

C9713

C9646

TL9732

TL9717

TL9730

IC9703

TL9716

TL9734

C9718

C9710

TL9733

TL2006

C9005

TL2007

TL9001

TL2008

R9034

TL2009

TL2010

TL9002

TL2011

R9035

TL2012

TL9003

TL2013

TL2014

R1306

TL2001

R2025

TL9005

R1307

IC1302

C1308

R1305

R1303

Q1301

Q1305

R1324

C1301

FDC2

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6 – 7

LC-32/37D62U SUPPLEMENT 1st

R3235

TL1303

R2244

R3209

R3208

C3231

R2267R2263

TL1304

LUG2211

R2285

C3221

Q2209

C3222

TL1302

C3224

R3224

R3233

R2291R2287

R2293

Q2211

R2302

R2303

R3234

R2289R2292

R2290

R2294

TL1632

Q2213

TP1601

R1711

TL1617

R1644

TL1631

D1616

TL1624

TL1621

R1639

D1615

TL1630

C3303

R1638

TL3302

TL1620

C3304

IC3302

D1623

D1612

R1705

TL1622

C1671

R1701

TL3301

FB3304

TL1623

C3314

C1669

C3337

IC1607

D1622

FB3303

Q3301

R3341

C3336

TL1627

C3313

C3315C3316C3317C3318

TL1612

C1655

R3343

R1700

R3334

TL1626

R3340

R1645

C3332

R3335

C1663

C3331

TL3304

FL3301

Q1608

R3320

C3325

R1646

R1653

R1658

R1657

R1659

R1660

C3335

R3353

C1654

TL1628

C3334

R3327

R3326

C3327

C3328

C3326

R3331

C3302

IC1602

C1651

C3301

C3329

R1609

FB3301

C3330

FB1613

TL1629

FB3302

TL1625

D1606

Q1613

R3342

TL1614

R1623

C1617

C1618

Q1609

TL1613

R1624

R1637

R1641

R1640

R1642

R1643

C1612

TL1615

D1619

IC1603

R1680

R1682

C1611

R1698

D1614

C1636

C1637

FB1605

TL1618

TL1607

C1632

C1633

C1631

C1642

C1648

C1647

C1629

C1628

Q1618

D1607

R1608

C1627

C1626

R1683

C1630

R1667

R1610

R1662

C1625

C1624

R1663

R1684

C1676

R1677

R1676

C1652

IC1609

C1623

C1622

R1731

C1644

C1643

C1646C1639

FB1614

R1521

C1645C1638

C1635

C1634

C1621

C1641

C1640

TP1633

R1520

TL1609

R1668

R1671

C1620

R1607

C1613

R1506

C1619

Q1607

C1615

TL1606

FB1606

R1620

R1627

R1630

R1629

R1633

R1634

C1609

TL1611

D1613

C1607

IC1601

R1664

D1611

FB1603

TL1619

TL1604

TL1616

R1777

R1779

R1780

R1783

D1605

Q1616

TL1758

TL1767

TL1769

C1784

C1785

R1753

R1768

C1787

TL1768

C1786

R1788

TL1755

R1765

R1766

R1794

C1760

C1761

R1758

C1778

C1759

C1758

R1751

C1754

C1782

C1781

Q1756

C1757

C1783

C1771

C1779

C1774C1777

C1780

C1753

FB1753

R1759

C1770

C1775C1776

TL1770

TL1754

R1760

R1762

R1761

R1763

R1764

R1793

R1774

R1776

C1752

TL1756

D1757

IC1751

C1751

TL1753

TL1751

R1767

D1756

FB1751

TL1757

R1789

D1754

Q1757

TL1752

Q1755

FDC1

C2027

C2028

C2029

TL2002

TL2003

TL2004

TL2005

FB2003

FB2004

FB2005

FB2001

R2008

R2009

C2004

C2005

R2010

D9643

C9650

R9655

C9656

C9649

C9653

IC9642

R9651

C9652

TL9641

R9653

R9657

R9654

R9652

C9655

D9642

R2300

C1516C1538C1536C1534C1531C1515

C1530C1528C1526C1524

C1520C1537C1535C1533C1532C1519

C1529C1527C1525C1523

TL1504

C1546

C1543

C1544

C1545

C1540

C1556

FB1508

C1548

C1561

C1559

C1558

TP1501

C1549

C1550

FB1507

C1562

C1557

C1560

C1512

C1513

C1539

C1565

C1567

R1519

C1591

TL1506

C1573

FB1509

C1578

C1577

R1522

C1572

C1574

C1590

C1588C1585C1583C1581

C1570

C1571

TL1505

C1589

C1587C1586C1584C1582

C1575

C1576

C1580

C1579

R1527

R1523

FL1501

R1533

R8020

IC8002

R8019

R3319R3344

R3349

C8086

TL8029

R8004

FB8001

C8075

IC8003

C8079

FB8003

C8014

C8085

C8080

C8082

TL8033

R8001

C8003

R8903

C8087

C8081

C8065

R8137

R8136

C8067

FB8002

C8076

C8064

C8105

C8069

R8038

C8026

C8106

R8039

C8024

C8062

C8016

C8059

C8012

C8032

R8129

C8002

R8100

R8067

C8060

C8066

C8034

R8068

C8061

TP8054

C8040

C8038

C8057

C8030

C8028

C8112

C8007

C8063

C8097

C8027

C8023

R8084

C8036

TP8051

R8042

R8026

C8048

C8098

C8022

C8005

C8033

C8104

C8052

C8006

C8008

C8009

R8142

C8004

TP8002

TP8015

R8066

C8035

C8149

C8010

C8109

C8037

TP8052

R8081

C8039

C8013

C8042

C8096

C8025

C8068

R8077

R8078

C8015

C8103

TP8062

C8094

C8045

C8017

R8080

C8047

TP8063

C8095

R8111

C8102

C8049

C8011

C8051

C8019

C8021

C8020

C8053

R8041

R8063

R8062

C8044

R8090

C8056

C8054

R8138

C8058

C8018

C8050

R8059

R8065

R8131

TP8046

R8064

R8057

C8100

C8115

C8116

C8071

C8043

C8046

C8101

R8122

R8043

C8077

C8099

TP8050

R9315

C8083

TP8025

R9310

C8114

C8090

C8070

TL8074

TP8009

C8088

R8097

C8078

R8141

R8114

R8096

TL8072

R8013

C8072

C8074

C8084

C8073

R9313

R8014

TL8001

C8092

R8120

TL8073

TP8020

R2268

TP8055

TP2211

R8093

R2272

TP8029

TL2291

TP8026

R2238

R8132

R2298

R9317

Q2203Q2208

R8118

R8116

R2311

R2231

R2230

R2297

R2251

TL2297

R2247

R2284

R8007

R8010

R8009

Q2205Q2206

TL2292

R2246

R2241R2239

TL9386

R2288

R2242

R2283

TL2296

TL9303

R8018

Q2207Q2204

TL2295

TL9385

R2250R2245R2240

R2233

TL2294

R2282

TL8457

C8229

C8178C8176

C8228

C8206

C8205

R8214

C8193

IC8155

R8223

R8224

R8213

C8194

C8195

R8270

TL8152

C8184

R8212

C8192

C8185

TL8151

R8271

C8227

C8180C8182

C8179C8177

C8226

R8180

R8211

R8179

R8210

R8178

C8001

R8177

R8209

R8267

R8165

R8176

C8187

C8055

C8188

R8166

R8175

R8164

C8225

C8181

C8183

R8198

C8041

R8199

R8200

R8201

C8031

R8181

R8202

R8163

R8168

R8174

C8224

C8159C8157

R8173

C8029

R8208

R8172

R8171

R8207

R8167

R8170

R8251

R8206

R8169

C8168

C8167

C8223C8222

C8161C8163

C8221

C8156

C8158

R8205

R8204

R8203

C8169

C8170

R8226

R8225

C8218

C8219

C8220

C8160

C8162

LUG2210

R2301

TL8603

TL8601

TL8602

TL8604

R8607

TL8607

TL8606

TL8605

TL8615

TL8617

C9651

R9203

R9206

TL9234

TL9237

TL9238

TL9235

TL9236

TL9240

TL9224

TL9222

TL9208

TL9241

TL9239

TL9223

TL9221

TL9207

TL9201

R9204

R9207

R9208

R9211

TL9275

TL9206

TL9205

TL9204

TL9203

TL9202

R9212R9202

TL2629

TL2632

TL2630

TL2633

TL2631

TL2636

TL2634

TL2637

TL2638

TL2635

TP2603

TP2601

TP2604

TL2648

TP2605

TP2606

TP2602

TL2650

TL2649

TL2623

TL2624

TL2625

R2624

R2625

TL2626

TL2627

R2616

R2626

R2627

R2615

R2622

TL2628

TL2643

TL2603

TL2639

TL2644

TL2640

TL2602

TL2645

TL2651

TL2658

TL2646

TL2642

TL2661

TL2647

TL2641

TL2655

TL2654

TL2657

TL2656

C8217

TL9605

C9614

C8207

R8240

R8227

D9607

C8208

C8209

R8243

C8210

R2637

R2638

R8241

C2608

C8211

C2607

C8212

C2609

R8244

C8213

C8214

R8242

IC2602

TL2619

C8215

TL2652TL2653

TL2663

TL2664

TL2609

TL2610

TL2622

C2606

TL2621

TL2665

R2623

R2621

FB2603

TL2601

C8216

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LC-32/37D62U SUPPLEMENT 1st

MEMO

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LC-32/37D62U SUPPLEMENT 1st

CHAPTER 7. 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.

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[2] MAIN Unit

•MAIN Unit-1/18

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•MAIN Unit-2/18

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PartsGuide

LC-32/37D62U SUPPLEMENT 1st

PARTS GUIDE

No. S77M5LC32D62U

SUPPLEMENT

Note:

The reference numbers on the PWB are arranged in alphabetical order.

[1] PRINTED WIRING BOARD ASSEMBLIES

(NOT REPLACEMENT ITEM)

[2] PRINTED WIRING BOARD ASSEMBLIES

[3] LCD PANEL (NOTE: THE PARTS HERE

SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPENDENTLY.)

[4] DUNTKE230FM06 (MAIN Unit)

[5] CABINET AND MECHANICAL PARTS

(LC-32D62U)

[6] CABINET AND MECHANICAL PARTS

(LC-37D62U)

MODELS

CONTENTS

LC-32D62U LC-37D62U

[7] SUPPLIED ACCESSORIES

[8] PACKING PARTS (NOT REPLACEMENT ITEM)

[9] SERVICE JIG (USE FOR SERVICING)

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.

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

LC-32/37D62U SUPPLEMENT 1st

NO. PARTS CODE

PRICE

RANK

NEW

MARK

PAR T

DELIVERY

DESCRIPTION

[1] PRINTED WIRING BOARD ASSEMBLIES (NOT REPLACEMENT ITEM)

N DUNTKD909FM02 - - R/C, LED Unit N DUNTKD910FM02 - - KEY Unit N DUNTKD999FM07 - N - TERMINAL Unit

[2] PRINTED WIRING BOARD ASSEMBLIES

N DUNTKE230FM06 N R MAIN Unit

N RDENCA203WJQZ BP X POWER Unit

[3] LCD PANEL (NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPEN-

DENTLY.)

N R1LK315D3LZ10Z DQ N J 32" LCD Panel Module Unit (LC-32D62U) N R1LK370D3LZ20Z EC N J 37" LCD Panel Module Unit (LC-37D62U)

[4] DUNTKE230FM06 (MAIN Unit)

C1301 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1303 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1308 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1310 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1311 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1312 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1313 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1314 RC-KZA098WJZZY AD J Capacitor, 10 25V Ceramic C1401 VCCCCZ1HH120JY AB J Capacitor, 12p 50V Ceramic C1402 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1403 VCKYCZ1AB104KY AB J Capacitor, 0.1 10V Ceramic C1404 VCCCCZ1HH120JY AB J Capacitor, 12p 50V Ceramic C1405 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1406 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1407 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1408 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1409 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1411 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1412 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1414 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1415 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1417 VCKYCZ1EB103KY AA J Capacitor, 0.01 25V Ceramic C1418 RC-KZA154WJZZY AB J Capacitor, 4.7 16V Ceramic C1419 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1421 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1422 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1423 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1424 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1425 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1426 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1427 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1428 RC-KZA510WJPZY AB J Capacitor, 10 16V Ceramic C1429 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1430 VCKYTV1CB105KY AC J C1431 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1432 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1440 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1441 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1458 VCERMZ1CN107MY AD J Capacitor, 100 16V Electrolytic C1459 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1462 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1463 VCERMZ1CN107MY AD J Capacitor, 100 16V Electrolytic C1464 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1465 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1501 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1502 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1503 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1505 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1506 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1507 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1508 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1510 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1511 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1512 VCKYTV1CB105KY AC J Capacitor, 1 16V Ceramic C1513 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1514 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1515 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1516 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1518 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1519 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1520 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1522 RC-KZA237WJZZY AB J Capacitor, 10 16V Ceramic C1523 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1524 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1525 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1526 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic C1527 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1528 C1529 VCKYCZ1EF104ZY AA J Capacitor, 0.1 25V Ceramic C1530 VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic

VCKYCZ1HB102KY AB J Capacitor, 1000p 50V Ceramic

Capacitor, 1 16V Ceramic

SHARP LC-32D62U, LC-37D62U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual