Sharp LC-42D64U, LC-46D64U, LC-52D64U User Manual

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LC-42D64U/46D64U/52D64U

SERVICE MANUAL

Revised Edition

No. SX7B5LC42D64U

LCD COLOR TELEVISION

LC-42D64U LC-46D64U

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.

NOTE

This service manual is issued since the main and side PWBs used for LC-42/46/52D64U have been changed. For the product where the main and side PWBs have been changed, refer to the following serial No. for each model. Model name/Serial No. LC42D64U: 712851112~/LC46D64U: 712891112~/LC52D64U: 712871112~.

CONTENTS

NOTE AND MODIFIED PARTS LIST

NOTE ..................................................................i

MODIFIED PARTS LIST .....................................i

Item of modified contents ....................................i

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

CAUTION ........................................................... ii

PRECAUTIONS A PRENDRE LORS DE

LA REPARATION.............................................. iii

PRECAUTIONS FOR USING LEAD-FREE

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

PRECAUTIONS IN SERVICING THE

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

CHAPTER 1. OPERATION MANUAL

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

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

[3] DIMENSIONS ................................................ 1-8

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

(LC-42D64U).................................................. 2-1

[2] REMOVING OF MAJOR PARTS

(LC-46/52D64U)............................................. 2-7

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE ......................4-1

CHAPTER 5. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS .........................5-1

CHAPTER 6. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM

(LC-42D64U) .................................................6-1

[2] OVERALL WIRING DIAGRAM

(LC-46/52D64U) ............................................6-3

[3] SYSTEM BLOCK DIAGRAM .........................6-5

CHAPTER 7. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN Unit ......................................................7-1

[2] TERMINAL Unit .............................................7-9

[3] SIDE Unit ..................................................... 7-11

[4] R/C, LED Unit ..............................................7-13

[5] KEY Unit ......................................................7-14

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM............................................................8-1

[2] SCHEMATIC DIAGRAM ................................8-2

LC-52D64U

CHAPTER 3. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ....................... 3-1

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

Parts Guide

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

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LC-42D64U/46D64U/52D64U

LC42D64U

NOTE AND MODIFIED PARTS LIST

Service Manual

NOTE

Model name/Serial No. LC42D64U: 712851112~/LC46D64U: 712891112~/LC52D64U: 712871112~.

MODIFIED PARTS LIST

Ref.No. Description No. S77L2LC42D64U (Base Models) No. S77L2LC42D64U (These Models) Remarks

PRINTED WIRING BOARD ASSEMBLIES

N MAIN Unit DUNTKE207FM01 DUNTKE558FM01 Changes N TERMINAL Unit DUNTKE208FM01 DUNTKE208FM01 No Chaanges N SIDE Unit DUNTKE209FM01 DUNTKE488FM01 Changes N R/C, LED Unit DUNTKE264FM02 DUNTKE264FM02 No Chaanges N KEY Unit DUNTKE266FM02 DUNTKE266FM02 No Chaanges N POWER Unit RDENCA235WJQZ RDENCA235WJQZ No Chaanges N AC INLET Unit RUNTKA317WJQZ RUNTKA317WJQZ

Item of modified contents

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM ADJUSTMENT PROCEDURE TROUBLESHOOTING TABLE OVERALL WIRING DIAGRAM SYSTEM BLOCK DIAGRAM PRINTED WIRING BOARD ASSEMBLIES

• MAIN Unit

• SIDE Unit

SCHEMATIC DIAGRAM Parts Guide

• The HDMI terminals only support digital signal.

PC compatibility chart

It is necessary to set the PC correctly to display XGA and WXGA signal. Refer to page 38 to set PC input signals.

PC Horizontal Frequency VESA StandardResolution Vertical Frequency

31.5 kHz

37.9 kHz

VGA

720 x 400

640 x 480

37.5 kHz

35.1 kHz

800 x 600SVGA

37.9 kHz

48.1 kHz

46.9 kHz

48.4 kHz

XGA 1024 x 768

56.5 kHz

60.0 kHz

WXGA 1360 x 768

47.7 kHz

64.0 kHzSXGA 1280 x 1024 60 Hz O

64.0 kHzSXGA+ 1400 x 1050 60 Hz O

75.0 kHzUXGA 1600 x 1200 60 Hz O

*These 4 formats are not supported by the analog RGB terminal.

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

70 Hz 60 Hz

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

O O O O O

O O

O O O O

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LC-42D64U/46D64U/52D64U

LC42D64U

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 CO N TIN U E D PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

F7000 (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 110-240 volt 50/60Hz 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.

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LC-42D64U/46D64U/52D64U

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

F7000 (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 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 110-240V 50/60Hz. (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

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LC-42D64U/46D64U/52D64U

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

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM

Applied part: HDCP-KEY ROM

IC8451 RH-IXC318WJQZY (updated ROM)

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

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

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

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

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

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LC-42D64U/46D64U/52D64U

LC42D64U

CHAPTER 1. OPERATION MANUAL

Service Manual

[1] SPECIFICATIONS

Item Model: LC-42D64U Model: LC-46D64U Model: LC-52D64U

42" Advanced Super View

LCD panel

& BLACK TFT LCD (Screen size 42

measured diagonally)

Resolution 2,073,600 pixels (1,920 x 1,080)

TV-standard (CCIR) American TV Standard ATSC/NTSC System

VHF/UHF VHF 2-13ch, UHF 14-69ch

CATV 1-135ch (non-scrambled channel only)

TV Function

Receiving Channel

Digital Terrestrial Broadcast (8VSB)

Digital cable

(64/256 QAM)

2-69ch

1-135ch (non-scrambled channel only)

Audio multiplex BTSC System

Backlight 60,000 hours (at Backlight Standard position)

Audio out 15W x 2

INPUT 1 AV in, COMPONENT in

INPUT 2 AV in, S-VIDEO in

INPUT 5 HDMI in with HDCP

INPUT 6 Audio in, HDMI in with HDCP

INPUT 7 15-pin mini D-sub female connector, Audio in (Ø 3.5 mm jack)

Rear

Terminals

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

DIGITAL AUDIO OUTPUT

Optical Digital audio output x 1 (PCM/Dolby Digital)

OUTPUT Audio out

RS-232C 9-pin D-sub male connector

INPUT 3 AV in, COMPONENT in

Side

INPUT 4 HDMI in with HDCP

USB Software update

OSD language English/French/Spanish

Power Requirement

Power Consumption

Weight

Dimension

TV + stand 60.6 lbs./27.5 kg 66.1 lbs./30.0 kg 74.9 lbs./34.0 kg

TV only 48.5 lbs./22.0 kg 54.0 lbs./24.5 kg 62.8 lbs./28.5 kg

TV+stand 39

(W x H x D) (in inches)

TV only 3917/

Operating temperature

Emergency alert messages via Cable are unreceivable.

The dimensional drawings are shown on the inside back cover.

AC120V,60Hz(FORNORTHAMERICA) AC 110-240 V, 50/60 Hz (FOR OTHERS)

215 W (0.6 W Standby with AC 120V)

+32°F to + 104°F (0°C to + 40°C)

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

46" Advanced Super View & BLACK TFT LCD (Screen size 45 measured diagonally)

256 W (0.6 W Standby withAC120V)

4323/

52" Advanced Super View

& BLACK TFT LCD (Screen size 52 measured diagonally)

290 W (0.6 W Standby with AC 120V)

/164845/

4845/

Optional accessory

The listed optional accessory is available for the Liquid Crystal Television. Please purchase it at your nearest shop.

• Additional optional accessories may be available in the near future. When purchasing, please read the newest catalogue for compatibility and check the availability.

1 – 1

Part name

Wall mount bracket

Model number

AN-52AG4

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[2] OPERATION MANUAL

Part names

TV (Front)

NOTE

*OPC: Optical Picture Control **TV status indicator.

TV (Rear/Side)

LC-42D64U/46D64U/52D64U

Remote control sensor OPC sensor*

OPC indicator** SLEEP indicator** POWER indicator**

POWER button

INPUT 3 terminals

HDMI terminal (INPUT 4)

USB terminal

MENU button

INPUT button

Channel buttons (CH /)

Volume buttons (VOL+/–)

RS-232C terminal

DIGITAL AUDIO OUTPUT terminal

HDMI terminal (INPUT 5)

HDMI terminals (INPUT 6)

INPUT 7 terminals (PC-IN)

Antenna/Cable in INPUT 1 terminals

INPUT 2 terminals

1 – 2

AUDIO OUTPUT terminals

AC INPUT terminal

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LC-42D64U/46D64U/52D64U

Part names

Remote control unit

116

2 3

12 13

15 29

25 26

1 TV POWER: SwitchtheTVpoweronorentersstandby.

2DISPLAY:Display the channel information.

3 SOURCE POWER: Turns the power of the external equipment

on and off.

4 External equipment operational buttons: Operate the external

equipment.

50–9:Set the channel.

6 • (DOT):

7 INPUT: Select a TV input source. (TV, INPUT 1, INPUT 2, INPUT 3,

INPUT 4, INPUT 5, INPUT 6, INPUT 7)

8 VOL / : Set the volume.

9 SURROUND: Select Surround settings.

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

screen.

11 EXIT: Turn off the menu screen.

12 OPTION: Display the AQUOS LINK MENU screen. This button

will function only when AQUOS LINK is used.

13 REC STOP: Stops one touch recording. This button will function

only when AQUOS LINK is used.

14 SLEEP: Set the sleep timer.

15 AUDIO: Selects the MTS/SAP or the audio mode during multi-

channel audio broadcasts.

16 FUNCTION: Switches the remote control for TV, CBL/SAT, VCR,

DVD and AUDIO operation. Indicator lights up for the current mode.

* To enter the code registration mode, you need to press

FUNCTION and DISPLAY at the same time.

17 LIGHT : When pressed all buttons on the remote control unit

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

18 VIEW MODE: Select the screen size.

19 ENT: Jumps to a channel after selecting with the 0–9 buttons.

20 FLASHBACK: Return to the previous channel or external input

mode.

21 CH / : Select the channel.

22 MUTE: Mute the sound.

23 MENU: Display the menu screen.

24 ////ENTER: Select a desired item on the screen.

25 RETURN: Return to the previous menu screen.

26 FAVORITE CH

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

categories.

While watching, you can toggle the selected channels by pressing A, B, C and D.

27 FAVORITE: Set the favorite channels.

28 CC: Display captions from a closed-caption source.

NOTE

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

29 AV MODE: Select an audio or video setting.

(When the input source is TV, INPUT 1, 2 or 3: STANDARD, MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC. When the input source is INPUT 4, 5, 6 or 7: STANDARD, MOVIE, GAME, PC, xvYCC (INPUT 4/5/6 only), USER, DYNAMIC (Fixed), DYNAMIC)

1 – 3

Page 9

LC-42D64U/46D64U/52D64U

Appendix

Removing the stand

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

CAUTION

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

Before attaching/detaching the stand

• Before performing work make sure to turn off the TV.

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

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

NOTE

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

Hex key

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

Setting the TV on the wall

CAUTION

• This TV should be mounted on the wall only with the AN-52AG4 (SHARP) wall mount bracket. The use of other wall mount brackets may result in an unstable installation and may cause serious injuries.

• Installing the TV requires special skill that should only be performed by qualified service personnel. Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting that results in accident or injury.

Using an optional bracket to mount the TV

•

You can ask a qualified service professional about using an optional AN-52AG4 bracket to mount the TV to the wall.

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

Hanging on the wall

About setting the TV angle

AN-52AG4 wall mount bracket.

(See the bracket instructions for details.)

Vertical mounting Angular mounting

NOTE

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

• To use this TV mounted on a wall, first remove the adhesive tape at the 4 locations on the rear of the TV, and then use the screws supplied with the wall mount bracket to secure the bracket to the rear of the TV.

1 – 4

Page 10

LC-42D64U/46D64U/52D64U

Appendix

Troubleshooting

Problem

• No power

• Unit cannot be operated.

• Remote control unit does not operate.

• Picture is cut off/with sidebar screen.

• Strange color, light color, or color misalignment

• Power is suddenly turned off.

Possible Solution

• Check if you pressed TV POWER on the remote control unit. If the indicator on the TV does not light up, press POWER on the TV.

• Is the AC cord disconnected?

• Has the power been turned on?

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

•IstheFUNCTION set correctly? Set it to the TV setting position.

• Are batteries inserted with polarity (+,-) aligned?

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

• Are you using it under strong or fluorescent lighting?

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

• Is the image position correct?

• Are screen mode adjustments such as picture size made correctly?

• Adjust the picture tone.

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

• Check the input signal setting.

• Is the sleep timer set?

• Check the power control settings.

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

• No picture

• No sound

• The TV sometimes makes a cracking sound.

• Is connection to other components correct?

• Is correct input signal source selected after connection?

• Is the correct input selected?

• Is picture adjustment correct?

• Is “On” selected in “Audio Only”?

• Is a non-compatible signal being input?

• Is the volume too low?

• Is “Variable” selected in “Output Select”?

• Have you pressed MUTE on the remote control unit?

• This is not a malfunction. This happens when the cabinet slightly expands and contracts according to change in temperature. This does not affect the TV's performance.

Troubleshooting-Digital broadcasting

The error message about reception of broadcast

The example of an error message

displayed on a screen

• Failed to receive broadcast.

• No broadcast now.

Error code

E202

E203 • Check the broadcast time in the program guide.

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

Possible Solution

Cautions regarding use in high and low temperature environments

• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed This is not a malfunction, and the unit will recover when the temperature returns to normal.

• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction. Storage temperature: -4°F to +140°F (-20°C to +60°C)

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Page 11

LC-42D64U/46D64U/52D64U

• The HDMI terminals only support digital signal.

PC compatibility chart

It is necessary to set the PC correctly to display XGA and WXGA signal. Refer to page 38 to set PC i nput signals.

PC Horizontal Frequency VESA StandardResolution Vertical Frequency

720 x 400

VGA

XGA 1024 x 768

WXGA 1360 x 768

*These 4 formats are not supported by the analog RGB terminal.

640 x 480

800 x 600SVGA

31.5 kHz

37.9 kHz

37.5 kHz

35.1 kHz

37.9 kHz

48.1 kHz

46.9 kHz

48.4 kHz

56.5 kHz

60.0 kHz

47.7 kHz

64.0 kHzSXGA 1280 x 1024 60 Hz O

64.0 kHzSXGA+ 1400 x 1050 60 Hz O

75.0 kHzUXGA 1600 x 1200 60 Hz O

70 Hz 60 Hz

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

O O O O O O O O O O O

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Page 12

LC-42D64U/46D64U/52D64U

Basic adjustment settings

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

Picture Picture

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

C.M.S.-Hue C.M.S.-Saturation Color Temp. Active Contrast Fine Motion I/P Setting Film Mode 3D-Y/C Monochrome Range of OPC

Reset

Treble Bass Balance Surround Bass Enhancer Reset

No Signal Off No Operation Off

Audio

Power Control

OPC Backlight Contrast Brightness Color Tint Sharpness Advanced

C.M.S.-Hue C.M.S.-Saturation Color Temp. Active Contrast Fine Motion I/P Setting Film Mode Monochrome Range of OPC

Reset

Treble Bass Balance Surround Bass Enhancer Reset

No Signal Off No Operation Off

Audio

Power Control

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

AQUOS LINK Setup Audio Only Digital Noise Reduction Input Select Output Select Color System Caption Setup Digital Caption Info Program Title Display Favorite CH Game Play Time Operation Lock Out

Audio Setup IdentiÞcation Software Update

Setup

Option

Digital Setup

Setup

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

Option

AQUOS LINK Setup Audio Only Digital Noise Reduction HDMI Setup Output Select Game Play Time Operation Lock Out

Digital Setup

Software Update

NOTE

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

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Page 13

[3] DIMENSIONS

LC-42D64U

(646)

(708)

(62)

(200)

(400)

3917/32(1004)

363/4(933.2)

153/4(400)

(526.2)

(409)

(125)

LC-42D64U/46D64U/52D64U

Unit: inch (mm)

2121/32(550)

(95)

LC-46D64U

(698)

(760)

(62)

(175)

(400)

4323/64(1101)

/64(1023.4)

153/4(400)

(575.6)

(435)

(125)

(325)

/32(550)

(95)

1 – 8

(325)

Page 14

LC-42D64U/46D64U/52D64U

LC-52D64U

4845/64(1237)

/16(1157.0)

(774)

(836)

(62)

153/4(400)

(651.6)

(473)

457/

(124)

Unit: inch (mm)

/32(550)

(95)

(400)

(137)

(325)

1 – 9

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LC-42D64U/46D64U/52D64U

LC42D64U

CHAPTER 2. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-42D64U)

1. Remove the Black Sheet, and remove the 7 lock screws, 1 lock screw, 7 lock screws and detach the Rear Cabinet.

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

Rear Cabinet

Front Cabinet

Flat head screw

Black Sheet

Stand Base Ass'y

CAUTION: For 42/46, In the case of assembly, the new sheet (PSPAKA237WJ00) can be stuck on a flat head screw.

2 – 1

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LC-42D64U/46D64U/52D64U

3. Remove the 8 lock screws and detach the Main Shield.

4. Remove the 6 lock screws and detach the AV Shield.

Main Shield

AV Shield

2 – 2

Page 17

5. Disconnect all the connectors from all the PWBs.

LC-42D64U/46D64U/52D64U

[KM]

[VD]

[HM]

[US]

[LP]

[LW]

[PL]

[HM]

[US]

[LW]

[LP] [LB]

[PD]

[RA]

[KM]

[MA]

[VD]

[PL]

[PD]

[PE]

[SP]

[LA1]

[AC]

[LB]

[LA1]

2 – 3

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LC-42D64U/46D64U/52D64U

6. Remove the Speaker-L and R.

7. Remove the 5 lock screws, 2 lock screws and detach the Tray Chassis and Terminal Bottom Angle.

Tray Chassis

Terminal Bottom Angle

6 6

Speaker-R

Speaker-L

2 – 4

Page 19

8. Remove the 2 lock screws, 2 lock Shaft, 2 lock Shaft and detach the Terminal Side Angle.

9. Remove the 3 lock screws and detach the AC INLET Unit.

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

11.Remove the 5 lock screws and detach the TERMINAL Unit.

12.Remove the 3 lock screws and detach the MAIN PWB Radiator.

13.Remove the 2 lock screws and detach the MAIN Unit.

POWER Unit

Terminal Side Angle

LC-42D64U/46D64U/52D64U

AC INLET Unit

MAIN PWB Radiator

TERMINAL Unit

MAIN Unit

2 – 5

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14.Remove the R/C, LED Unit.

15.Remove the 2 lock screws and detach the Mini AV Ass’y.

16.Remove the 2 lock screws, 2 lock screws and detach the Mini AV Shield and SIDE Unit from the Mini AV Ass’y.

17.Remove the KEY Unit from the Mini AV Ass’y.

18.Remove the 4 lock screws and detach the LCD Control Shield.

19.Remove the 14 lock screws and detach the Panel Support Angle.

20.Remove the 8 lock screws and detach the LCD Panel Module.

Panel Support Angle

Mini AV Shield

SIDE Unit

Operation Button

KEY Unit

LCD Control Shield

Mini AV KEY Cover

Mini AV Angle

R/C, LED Unit

2 – 6

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LC-42D64U/46D64U/52D64U

[2] REMOVING OF MAJOR PARTS (LC-46/52D64U)

1. Remove the Black Sheet, and remove the 6 lock screws, 1 lock screw, 7 lock screws and detach the Rear Cabinet. (LC-46D64U)

Remove the 7 lock screws, 8 lock screws and detach the Rear Cabinet. (LC-52D64U)

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

Front Cabinet

Flat head screw

Black Sheet

LC-46D64U

Rear Cabinet

Stand Base Ass'y

Front Cabinet

LC-52D64U

Rear Cabinet

Stand Base Ass'y

CAUTION: For 42/46, In the case of assembly, the new sheet (PSPAKA237WJ00) can be stuck on a flat head screw.

2 – 7

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LC-42D64U/46D64U/52D64U

3. Remove the 8 lock screws and detach the Main Shield.

4. Remove the 6 lock screws and detach the AV Shield.

Main Shield

AV Shield

2 – 8

Page 23

5. Disconnect all the connectors from all the PWBs.

[LB]

[LC]

[LA2]

[LW]

[KM]

[HM]

[VD]

[HM]

[US]

[PD]

[RA]

[KM]

[LP]

[LB]

[MA]

[PL] [LW] [LP]

[LA2]

[PL]

[PD]

[PE]

[MA]

[PE]

[VD]

LC-42D64U/46D64U/52D64U

[LC]

[LA1]

[SP]

[AC]

[LA1]

2 – 9

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LC-42D64U/46D64U/52D64U

6. Remove the Speaker-L and R.

7. Remove the 5 lock screws, 2 lock screws and detach the Tray Chassis and Terminal Bottom Angle.

Tray Chassis

Terminal Bottom Angle

Speaker-R

2 – 10

Speaker-L

Page 25

8. Remove the 2 lock screws, 2 lock Shaft, 2 lock Shaft and detach the Terminal Side Angle.

9. Remove the 3 lock screws and detach the AC INLET Unit.

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

11.Remove the 5 lock screws and detach the TERMINAL Unit.

12.Remove the 3 lock screws and detach the MAIN PWB Radiator.

13.Remove the 2 lock screws and detach the MAIN Unit.

POWER Unit

Terminal Side Angle

LC-42D64U/46D64U/52D64U

AC INLET Unit

MAIN PWB Radiator

TERMINAL Unit

MAIN Unit

2 – 11

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14.Remove the R/C, LED Unit.

15.Remove the 3 lock screws and detach the Mini AV Ass’y.

16.Remove the 2 lock screws, 2 lock screws and detach the Mini AV Shield and SIDE Unit from the Mini AV Ass’y.

17.Remove the KEY Unit from the Mini AV Ass’y.

18.Remove the 4 lock screws and detach the LCD Control Shield.

19.Remove the 14 lock screws and detach the Panel Support Angle.

20.Remove the 8 lock screws and detach the LCD Panel Module.

Panel Support Angle

Mini AV Shield

Operation Button

SIDE Unit

KEY Unit

LCD Control Shield

Mini AV KEY Cover

Mini AV Angle

R/C, LED Unit

2 – 12

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LC-42D64U/46D64U/52D64U

LC42D64U

CHAPTER 3. 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: DUNTKE558FM01

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 SAL2Axxx.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 located Right side from center at terminals, above HDMI4 terminal in the rear of the unit.

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.

3 – 1

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LC-42D64U/46D64U/52D64U

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

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

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.

3 – 2

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LC-42D64U/46D64U/52D64U

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 SAL2VAxx.USB and SALEMxxx.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 located Right side from center at terminals, above HDMI4 terminal in the rear of the unit.

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

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.

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'.

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

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.

3 – 3

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LC-42D64U/46D64U/52D64U

3. Entering and exiting the adjustment process mode

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

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

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

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

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

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

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

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

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

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

1) Key operation

Remote controller key Main unit key Function

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

2) Description of display

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

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

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

(1) Current page/ (5) Destination

Total pages

1/32 [INFO] INPUT5 AUTO USA 46_UNDER

MAIN Version 0.95 ( U 2006/02/02 1)

BOOT Version D64U 1.01

Monitor Version 0.88

Monitor BOOT Version 1.00

EQ DATA CHECKSUM ROM

TEMPERATURE 7B

LAMP ERROR 0

MONITOR ERR CAUSE 0

NORMAL

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

(2) Current page title

STANDBY CAUSE 0

(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-42D64U: 42_UNDER) (LC-46D64U: 46_UNDER) (LC-52D64U: 52_UNDER)

(7) Adjustment

process menu header

(8) Parameters

3 – 4

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LC-42D64U/46D64U/52D64U

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

3 – 5

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LC-42D64U/46D64U/52D64U

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 D_GAIN 7 COMP33K Cb D_GAIN 8 COMP33K Cr D_GAIN 9 COMP33K Y OFFSET Y OFFSET adjustment value

10 COMP33K Cb OFFSET Cb OFFSET adjustment value

11 COMP33K Cr OFFSET Cr OFFSET adjustment value

7 [ANALOG RGB]

1 ANALOG RGB ADJ Analog RGB picture level adjustment 2 R A_GAIN 3 G A_GAIN 4 B A_GAIN 5 R D_GAIN 6 G D_GAIN 7 B D_GAIN 8 R OFFSET 9 G OFFSET

10 B 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

3 – 6

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LC-42D64U/46D64U/52D64U

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

3 – 7

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LC-42D64U/46D64U/52D64U

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 5 OSC 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

3 – 8

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LC-42D64U/46D64U/52D64U

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 ERROR CAUSE RESET

30 [M TESTPTRN]

1 LCD TEST PATTERN 2 TV TEST PATTERN 1 3 TV TEST PATTERN 2

3 – 9

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LC-42D64U/46D64U/52D64U

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

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.

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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] 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] and press [ENTER].

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

7.6. Analog RGB signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment Analog RGB signal: XGA

(1024 x 768) 60Hz SYNC: HV separate

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

2 Auto adjustment

performance

100% Color saturation

100% white 0% black

Bring the cursor on [•ANALOG RGB ADJ] and press [ENTER]. [•ANALOG RGB ADJ OK] appears when finished.

XGA 100% color bar

3 – 11

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LC-42D64U/46D64U/52D64U

8. Adjustment of white balance

8.1. White balance adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Adjustment 1) Apply the following settings to the set.

2 Auto adjustment

performance

[Adjustment values]

Optical measuring machine: [Minolta CA-210] (Focus on the center of the screen.)

AV MODE: [DYNAMIC] Aging Time: 60 Min. Backlight: +16

2) Connect a white balance jig and the set. Optical measuring machine: [Minolta CA-210] PC RS-232C communication cable

3) Use an RS-232C command to display the screen for multipoint adjustment.

•Multipoint adjustment mode (MSET0001)

•Standard value 6 (WBI60928)

•Standard value 5 (WBI50800)

•Standard value 4 (WBI40656)

•Standard value 3 (WBI30528)

•Standard value 2 (WBI20352)

•Standard value 1 (WBI10176)

•Write setting (MSET0003)

[Adjustment]

1) Enter the monitor adjustment process mode.

2) Set the specified gradation for standard value 6. Set the strongest color as the fixed color and adjust RGB by reducing to the standard value.

3) Set the specified gradation for standard value 5. Set the correction value of G [(default of standard value 5) x (G of standard value 6) / (default of standard value 6)] and adjust RB to the standard value.

4) Set the specified gradation for standard value 4. Set the correction value of G [(default of standard value 4) x (G of standard value 6) / (default of standard value 6)] and adjust RB to the standard value.

5) Set the specified gradation for standard value 3. Set the correction value of G [(default of standard value 3) x (G of standard value 6) / (default of standard value 6)] and adjust RB to the standard value.

6) Set the specified gradation for standard value 2. Set the correction value of G [(default of standard value 2) x (G of standard value 6) / (default of standard value 6)] and adjust RB to the standard value.

7) Set the specified gradation for standard value 1. Set the correction value of G [(default of standard value 1) x (G of standard value 6) / (default of standard value 6)] and adjust RB to the standard value.

8) Write the adjustment values with MSET0003 command and turn off AC power.

Level Standard value Adjustment value Tolerance

Standard value 6 232 x = 0.272 ±0.001 ±0.002

y = 0.277 ±0.001 ±0.002

Standard value 5 200 x = 0.272 ±0.001 ±0.002

y = 0.277 ±0.001 ±0.002

Standard value 4 164 x = 0.272 ±0.001 ±0.002

y = 0.277 ±0.001 ±0.002

Standard value 3 132 x = 0.272 ±0.002 ±0.004

y = 0.277 ±0.002 ±0.004

Standard value 2 88 x = 0.272 ±0.003 ±0.006

y = 0.277 ±0.003

Standard value 1 44 x = 0.272 ±0.003 ±0.006

y = 0.277 ±0.003 ±0.006

Note Set the following before adjustment.

AV MODE: [DYNAMIC] Monochrome: ON Aging Time: 60 Min.

±0.006

3 – 12

Page 39

LC-42D64U/46D64U/52D64U

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

3 – 13

Page 40

LC-42D64U/46D64U/52D64U

10. Model number ID plug

Model numbers are identified by inserting the destination ID plug (QCNCMA275WJQZ) in its specified slot of the destination ID connector SC9201/ SC9202 (QCNCWA715WJQZY).

㪋㪈

㪪㪚㪐㪉㪇㪉

㪩㪪㪄㪉㪊㪉㪚

㪛㪄㫊㫌㪹㩷㪘㫌㪻㫀㫆

㪛㪄㫊㫌㪹

㪟㪛㪤㪠㩷㪘㫌㪻㫀㫆

㪟㪛㪤㪠

㪦㫇㫋㫀㪺㪸㫃㩷㪦㫌㫋㫇㫌㫋

䇼㪟㪤䇽

㪈㪉㪈

䇼㪣㪮䇽

㪈

㪙㪚㪤㪊㪌㪌㪊

㪤㪘㪠㪥㪜㪌㪌㪏

䇼㪩㪘䇽

㪈

䇼㪬㪪䇽

㪈㪈㪋

㪈㪉㪇

䇼㪣㪧䇽

㪈㪌

䇼㪢㪤䇽

㪈㪋

㪋㪈

䇼㪣㪙䇽

䇼㪧㪛䇽

㪪㪚㪐㪉㪇㪈

㪉

䇼㪤㪘䇽

㪏㪇

㪈㪉

㪛㪼㫊㫋㫀㫅㪸㫋㫀㫆㫅㩷㪠㪛㩷㪺㫆㫅㫅㪼㪺㫋㫆㫉㩷㫃㫆㪺㪸㫋㫀㫆㫅㫊

㪪㪚㪐㪉㪇㪈㪪㪚㪐㪉㪇㪉㪣㪚㪄㪋㪉㪛㪍㪋㪬㽲㽲㪣㪚㪄㪋㪍㪛㪍㪋㪬㽴㽲㪣㪚㪄㪌㪉㪛㪍㪋㪬㽶㽲

㪧㫃㫌㪾㩷㫃㫆㪺㪸㫋㫀㫆㫅㫊

㽲㽴㽶㽸㽹

㪈

㽳

㽵

㽷

㪛㪼㫊㫋㫀㫅㪸㫋㫀㫆㫅㩷㪠㪛㩷㪺㫆㫅㫅㪼㪺㫋㫆㫉㪛㪼㫊㫋㫀㫅㪸㫋㫀㫆㫅㩷㪠㪛㩷㫇㫃㫌㪾䋨㪨㪚㪥㪚㪮㪘㪎㪈㪌㪮㪡㪨㪱㪰䋩䋨㪨㪚㪥㪚㪤㪘㪉㪎㪌㪮㪡㪨㪱䋩

3 – 14

Page 41

LC42D64U

CHAPTER 4. TROUBLESHOOTING TABLE

Service Manual

[1] TROUBLESHOOTING TABLE

No video (1)

LC-42D64U/46D64U/52D64U

COMPOSITE: No external input video

[INPUT-1]

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

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

Does the INPUT-1 V3_PLUG detection function? Check the line between pin (7) of input terminal (J501) and pin (37) of IC501 (AV_SW).

YES

Is there the COMPOSITE signal input at pin (38) of IC501 (AV_SW)?

NO Check the line between pin (6) of J501 and pin (38) of IC501.

YES

COMPOSITE: No external input video

[INPUT-2]

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

NO Select INPUT-2 on the input select menu screen for the right

input signal.

Does the INPUT-2 V2_PLUG detection function? Check the line between pin (7) of input terminal (J503) and pin (35) of IC501 (AV_SW).

YES

Is there the COMPOSITE video signal input at pin (36) of IC501 (AV_SWITCH)?

NO Check the line between pin (6) of J503 and pin (36) of IC501.

YES

COMPOSITE: No external input video

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

YES

Is there the COMPOSITE signal input at pin(34) of IC501(AV_SW)?

YES

[INPUT-3]

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

Does the INPUT-1 V1_PLUG detection function? Check the line between pin (7) of input terminal (J901) and pin (33) of IC501 (AV_SW).

J901 pin (7) P901 pin (7)

P501 pin (7) IC501 pin

(33)

Check the line between pin (6) of J901 and pin (34) of IC501.

J901 pin (6) P901 pin (5)

P501 pin (5) IC501 pin

(34)

Is there the COMPOSITE video signal output at pin(30) of IC501? NO Check IC501 and its peripheral

YES

Is there the COMPOSITE video signal output at pin(59) of connector(SC501) on the TERMINAL unit?

YES

Is there the COMPOSITE video signal input at pin(59) of connector(SC2203) on the MAIN unit? NO Check the line between SC501

YES

Is there the COMPOSITE signal input at pin(AN16) of IC8001(CPU)? NO Check the line between SC2203

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.

circuits.

Check the line between IC501 and SC501 (Q501 and Q502, etc.).

and SC2203 connectors.

and IC8001 (Q2216, etc.).

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

4 – 1

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LC-42D64U/46D64U/52D64U

No video (2)

COMPONENT: No external input video [INPUT-1] COMPONENT: No external input video [INPUT-3]

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

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

Does the INPUT-1 C2_PLUG detection function? Does the INPUT-3 C1_PLUG detection function? Check the line between pin (7) of input terminal (J502) and pin (58) of IC501 (AV_SW).

YES

Are there the COMPONENT video signal inputs at pins(59)(Y)/ (60)(Pb) and (61)(Pr) of IC501(AV_SW)?

NO Check the line between the input terminals of J502 and IC501.

J502 pin (6) (Y) pin (5) (Pb) pin (4) (Pr)

IC501 pin (59) pin (60) pin (61)

YES

Are there the COMPONENT video signal outputs at pins (30) (Y)/(28) (Pb) and (27) (Pr) of IC501?

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

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

Check the line between pin (7) of input terminal (J902) and pin (50) of IC501 (AV_SW).

J902 pin(7) P901 pin (15)

YES

P501 pin (15) IC501 pin (50)

Are there the COMPONENT video signal inputs at pins(51)(Y)/(53)(Pb) and (55)(Pr) of IC501(AV_SW)?

NO Check the line between the input terminals of J902 and IC501.

J902 pin (6) (Y) pin (5) (Pb) pin (4) (Pr)

P901 pin (13) pin (11) pin (9)

P501 pin (13) pin (11) pin (9)

YES

IC501 pin (51) pin (53) pin (55)

NO Check IC501 and its peripheral circuits.

YES Are there the COMPONENT video signal outputs at pins (59), (57) and (55) of connector (SC501) on the TERMINAL unit?

YES Are there the COMPONENT video signal inputs at pins (59), (57) and

(55) of connector (SC2203) on the MAIN unit?

YES Are there the COMPONENT video signal inputs at pins (AM21) (Y)/ (AN21) (Pb) and (AL21) (Pr) 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 IC501 and SC501 (Q501 thru

Q506, etc.).

NO Check the line between SC501 and SC2203 connectors.

NO Check the line between the connector of SC2203 and

IC8001 (Q2202, Q2203 and Q2206, etc.).

NO Check IC8001 and its peripheral circuits. (IC8151 thru

IC8154, etc.)

4 – 2

Page 43

No video (3)

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

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

NO Does the INPUT-2 S1_PLUG detection function? Check the line between pin (6) of input terminal (J504) and pin (41) of IC501 (AV_SW).

YES

Are there the S-VIDEO signal inputs at pins (42) (Y) and (44) (C) of IC501 (AV_SW)?

NO Check the line between pins (3) (Y)/(4) (C) of J504 and pins (42)/

(44) of IC501.

YES Are there the S-VIDEO signal outputs at pins (59) (Y) and (57) (C) of connector (SC501) on the TERMINAL unit?

LC-42D64U/46D64U/52D64U

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

etc.).

YES Are there the S-VIDEO signal inputs at pins (59) (Y) and (57) (C) of connector (SC2203) 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 SC2203 connectors.

NO Check the line between SC2203 and IC8001 (Q2201 and

Q2205, etc.).

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

4 – 3

Page 44

LC-42D64U/46D64U/52D64U

No video (4)

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?

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

Check TU1101 and its peripheral circuits (SDA/SCL_3_5, etc.).

YES Is there the analog video signal output at pin (61) of connector (SC501) on the TERMINAL unit?

NO Check the line between TU1101 and SC501 (Q510, etc.).

YES

Is there the analog video signal input at pin (61) of connector (SC2203) on the MAIN unit?

NO Check the line between SC2203

and SC501 connectors.

YES

Is there the analog video signal input at pin (AM19) of IC8001 (CPU)? Are there the video signal inputs at pin (AM33) and (AM34) of IC8001

NO Check the line between IC8001

and SC2203 (Q2214, 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)

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

Check TU1101 and its peripheral circuits (SDA/SCL_3_5, etc.).

YES Are there the video signal outputs at pins (72) and (70) of connector (SC501) on the TERMINAL unit?

NO Check the line between TU1101 and SC501.

YES Are there the video signal inputs at pins (72) and (70) of connector (SC2203) on the MAIN unit?

Check the line between SC2203

YES

(CPU)?

YES

and SC501 connectors.

Check the line between IC8001 and SC2203 (L2204, C2229, etc.).

YES NO

Check the panel module. Check IC8001 and its peripheral

circuits. (IC8151 thru IC8154, etc.)

4 – 4

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LC-42D64U/46D64U/52D64U

[HDMI signal input] No video (5)

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

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

YES

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

Does the HOT PLUG detection function? Does the HOT PLUG detection function? Does the DDC5V signal come from pin (18) of SC801

to pin (72) of IC1604 (HDMI-SW)?

NO Check the line between the input terminals of SC801 and IC1604.

SC801 pin(18) IC801 pin(39)

SC802 pin(19) SC1603 pin(3)

IC1604 pin(72)

YES Does the HPD signal come from pin (56) of IC1604 to pin (19) of SC801?

Check the line between IC1604 and SC801.

IC1604 pin(56) SC1603 pin(4)

SC802 pin(18) IC801 pin(25)

IC807 pin(4) SC801 pin(19)

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

Does the DDC5V signal come from pin (18) of SC1601 to pin (32) of IC1604 (HDMI-SW)?

Check the line between the input terminals of SC1601 and IC1604.

YES

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

YES

Check the line between IC1604 and SC1601.

IC1604 pin(16) IC1607 pin(4)

SC1601 pin(19)

Are there the TMDS signal inputs at pins (27/28) (CLK-/+), (29/30) (D0-/ +), (32/33) (D1-/+), (34/35) (D2-/+), all of IC803?

Is IC802 (EEPROM) accessed by I2C, with HDMI connected, to read the DDC_I2C SCL/SDA data?

NO NO

Check the DDC line and its peripheral circuits. (IC801

YES

Are there the TMDS signal inputs at pins (58/59) (CLK-/+), (61/62) (D0-/ +), (64/65) (D1-/+), (67/68) (D2-/+), all of IC1604?

YES

Are there the TMDS signal inputs at pins (AM1/AM2) (CLK-/+), (AN1/AN2) (D0-/+), (AM3/ AM4) (D1-/+), (AP2/AN3) (D2-/+), all of IC8001 (CPU)?

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),

and its peripherals).

NO Check the TMDS line between IC803 and IC1604 (SC802 and SC1603, etc.).

YES

Are there the TMDS signal inputs at pins (18/19) (CLK-/+), (21/22) (D0-/+), (24/25) (D1-/+), (27/28) (D2-/+), all of IC1604?

YES

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

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

NO Check IC1604, IC8001 and their peripheral

circuits.

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

Is IC8451 (EEPROM for HDCP) accessed by I2C (SCL2/SDA2) to read HDCP data? Check IC8451 and its peripheral circuits.

Check the panel module.

YES

4 – 5

Page 46

LC-42D64U/46D64U/52D64U

HDMI: No external input video [INPUT-6]

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

NO Select INPUT-6 on the input select menu screen for the right input signal.

Does the HOT PLUG detection function? Does the DDC5V signal come from pin (18) of SC1602 to pin (52) of IC1604 (HDMI-SW)?

Check the line between the input terminals of SC1602 and IC1604.

YES

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

[HDMI signal input] No video (5)

Check the line between IC1604 and SC1602.

IC1604 pin (36) IC1608 pin (4)

YES

Are there the TMDS signal inputs at pins (38/39) (CLK-/+), (41/42) (D0-/+), (44/45) (D1-/+), (47/48) (D2-/+), all of IC1604?

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

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

YES

Are there the TMDS signal inputs at pins (AM1/AM2) (CLK-/+), (AN1/AN2) (D0-/+), (AM3/AM4) (D1-/+), (AP2/AN3) (D2-/+), all of IC8001 (CPU)?

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)

SC1602 pin (19)

YES

NO Check IC1604, IC8001 and their peripheral circuits.

Check IC8001 and its peripheral circuits. (IC8151 thru

IC8154, etc.)

Is IC8451 (EEPROM for HDCP) accessed by I2C (SCL2/SDA2) to read HDCP data? Check IC8451 and its peripheral circuits.

Check the panel module.

YES

4 – 6

Page 47

No video (6)

PC: No external input video [INPUT-7]

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

NO Select INPUT-7 on the input select menu screen for the right input signal.

Is IC2202 (EEPROM) accessed by I2C, with PC connected, to read the DDC_I2C SCL/SDA data?

Check the DDC line and its peripheral circuits. (IC2202 and its peripherals).

YES

Are there the video signal inputs at pins (AN15) (G), (AM15) (B) and (AK16) (R) of IC8001 (CPU)? Are there the VSYNC/HSYNC signal inputs at pins (AJ16) and (AH16) of IC8001?

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),

LC-42D64U/46D64U/52D64U

Check the line between SC2201 and IC8001 (Q2211, IC2201, etc.).

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

Check the panel module.

YES

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Page 48

LC-42D64U/46D64U/52D64U

No audio (1)

INPUT-1 No audio INPUT-2 No audio

Is INPUT-1 selected on the input select menu screen? Is INPUT-2 selected on the input select menu screen?

Is the audio output selected for "VARIABLE" on the menu screen?

Set the audio output to "FIXED". Set the audio output to "FIXED".

YES

Does the audio signal come from pins (4) (L) and (5) (R) of input terminal (J501) to pins (8) (L) and (13) (R) of IC501 (AV_SW) on the TERMINAL unit?

Check the line between J501 and IC501. Check the line between J503 and IC501.

YES

Does the audio signal come from pins (20) (L) and (18) (R) of IC501 to pins (51) (L) and (53) (R) of connector (SC501)?

YES

Are there the audio signal inputs at pins (51) (L) and (53) (R) of connector (SC2203) on the MAIN unit?

YES Does the audio signal come from pins (51) (L) and (53) (R) of SC2203 to pins (35) (L) and (36) (R) of IC1403 (CODEC)?

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)?

Does the audio signal come from pins (4) (L) and (5) (R) of input terminal(J503) to pins (7) (L) and (12) (R) of IC501 (AV_SW) on the TERMINAL unit?

NO Check the line between SC501 and SC2203.

NO Check the line between IC1403 and SC2203.

NO Check the line between IC1403 and IC8001.

Is the audio output selected for "VARIABLE" on the menu screen?

YES

Check the line between IC501 and SC501 its 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 (4) 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) (SPOUT_LP) and (18) (SPOUT_RP) of IC1403 to pins (21) (SP_LP) and (25) (SP_RP) of connector(SC2203) on the MAIN

unit?

YES Are there the audio signal inputs at pins (21) (SP_LP) and (25) (SP_RP) of connector (SC501) on the TERMINAL unit?

YES Does the audio signal come from pins (21) (SP_LP) and (25) (SP_RP) of SC501 to pins (5) (SP_LP) and (9) (SP_RP) of IC2701 (AMP) on the TERMINAL unit?

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

NO Check the line between IC1402 and IC1403.

NO Check the line between IC8001 and IC1403.

NO Check the line between SC501 and SC2203.

Check the line between IC8001 and IC1402.

Check the line between SC2203 and IC1403(D1305, D1312, Q1306 and Q1307, etc.).

Check the line between SC501 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

YES Check the connector(P2701), speakers and their peripheral circuits.

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INPUT-3 No audio

LC-42D64U/46D64U/52D64U

No audio (1)

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

YES

Does the audio signal come from pins (5) (L) and (4) (R) of input terminal (J901) to pins (3) (L) and (1) (R) of P901 on the SIDE unit?

YES Are there the audio signal inputs at pins (3) (L) and (1) (R) of P501 on the TERMINAL unit?

YES Does the audio signal come from pins (3) (L) and (1) (R) of P501 to pins (6) and (11) of IC501 on the TERMINAL unit?

YES Does the audio signal come from pins (20) (L) and (18) (R) of IC501 to pins (51) (L) and (53) (R) of connector (SC501)?

YES Are there the audio signal inputs at pins(51)(L) and (53)(R) of connector(SC2203) on the MAIN unit?

YES Does the audio signal come from pins (51) (L) and (53) (R) of SC2203 to pins (35) (L) and (36) (R) of IC1403 (CODEC)?

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)?

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

Check the line between J901 and P901, and their peripheral circuits.

Check the line between P501 and P901.

Check the line between P501 and IC501, and their peripheral circuits.

Check the line between IC501 and SC501 its peripheral circuits.

Check the line between SC501 and SC2203.

Check the line between IC1403 and SC2203.

Check the line between IC1403 and IC8001.

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 (4) 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) (SPOUT_LP) and (18) (SPOUT_RP) of IC1403 to pins (21) (SP_LP) and (25) (SP_RP)

of connector (SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins (21) (SP_LP) and (25)

(SP_RP) of connector (SC501) on the TERMINAL unit?

YES Does the audio signal come from pins (21) (SP_LP) and (25) (SP_RP) of SC501 to pins (5) (SP_LP) and (9) (SP_RP) of

IC2701 (AMP) on the TERMINAL unit?

YES Is the audio output from IC2701 as specified?

YES Check the connector (P2701), speakers and their peripheral circuits.

Check the line between IC8001 and IC1402.

Check the line between IC1402 and IC1403.

Check the line between IC8001 and IC1403.

Check the line between SC2203 and IC1403(D1305, D1312, Q1306 and Q1307, etc.).

Check the line between SC501 and SC2203.

Check the line between SC501 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

Check IC2701 and its peripheral circuits.

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LC-42D64U/46D64U/52D64U

No audio (2)

[HDMI analog audio input] INPUT-6 No audio [PC analog audio input] INPUT-7 No audio

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

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?

NO Check the line between J1601 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) 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 (4) of IC1402 (SOUND_DSP)?

Does the audio signal come from pins (2) (L) and (3) (R) of input terminal (J2201) to pins (46) (L) and (47) (R) of IC1403 (CODEC) on the MAIN unit?

Is the audio output selected for "VARIABLE" on the menu screen?

YES

Check the line between J2201 and IC1403, and their peripheral circuits.

YES

Check the line between IC1403 and IC8001.

Check the line between IC8001 and IC1402.

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_LP) and (18) (SP_RP) of IC1403 to pins (21) (SP_LP) and (25) (SP_RP) of connector(SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins (21) (SP_LP) and (25) (SP_RP) of connector (SC501) on the TERMINAL unit?

YES Does the audio signal come from pins (21) (SP_LP) and (25) (SP_RP) of SC501 to pins (5) (SP_LP) and (9)(SP_RP) 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 (P2701), speakers and their peripheral circuits.

NO Check the line between IC1402 and IC1403.

NO Check the line between SC501 and SC2203.

Check the line between IC8001 and IC1403.

Check the line between SC2203 and IC1403 (Q1313, Q1314, etc.).

Check the line between SC501 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

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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 (TU1101) on the TERMINAL unit?

NO Check the tuner (TU1101) and its peripheral circuits. Check the tuner(TU1101) and its peripheral circuits.

YES

Does the SIF signal come from pin (15) of tuner (TU1101) to pin (75) of connector (SC501)?

NO Check the line between TU1101 and SC501, and their

peripheral circuits (Q1101, Q1102, etc.).

YES

Is there the SIF signal input at pin (75) of connector (SC2203) on the MAIN unit?

NO Check the line between SC501 and SC2203. Check the line between SC2203 and SC501 connec-

YES

Does the SIF signal come from pin (75) of SC2203 to pin (AN23) of IC8001 (CPU) on the MAIN unit?

NO Check the line between IC8001 and SC2203. Check the line between IC8001 and SC2203 (L2204,

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)?

Are there the video signal outputs (IF_OUT_P/N) at the pins (19) and (20) of tuner (TU1101) on the TERMINAL unit?

Are there the video signal outputs at pins (72) and (70) of connector (SC501) on the TERMINAL unit?

Are there the video signal inputs at pins(70) and (72) of connector(SC2203) on the MAIN unit?

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

Is the audio output selected for "VARIABLE" on the menu screen?

YES

Check the line between TU1101 and SC501.

YES

tors.

C2229, 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 (4) 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) (SPOUT_LP) and (18) (SPOUT_RP) of IC1403 to pins (21) (SP_LP) and (25) (SP_RP) of connector (SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins (21) (SP_LP) and (25) (SP_RP) of connector (SC501) on the TERMINAL unit?

YES Does the audio signal come from pins (21) (SP_LP) and (25) (SP_RP) of

SC501 to pins (5) (SP_LP) and (9) (SP_RP) of IC2701(AMP) on the TERMINAL unit?

YES

Check the line between IC1403 and IC8001.

NO Check the line between IC1402 and IC1403.

NO Check the line between SC501 and SC2203.

Check the line between IC8001 and IC1402.

Check the line between IC8001 and IC1403.

Check the line between SC2203 and IC1403 (D1305, D1312, Q1306 and Q1307, etc.).

Check the line between SC501 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

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LC-42D64U/46D64U/52D64U

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

YES Check the connector (P2701), speakers and their peripheral circuits.

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INPUT-4 No audio (HDMI connected) INPUT-5 No audio (HDMI connected) INPUT-6 No audio (HDMI connected)

LC-42D64U/46D64U/52D64U

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? [INPUT-6 input] Is INPUT-6 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]". [INPUT-6 input] If no video appears, refer to "No external input video (HDMI) [INPUT-6]".

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

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 (4) 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 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.

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) (SPOUT_LP) and (18) (SPOUT_RP) of

IC1403 to pins (21) (SP_LP) and (25) (SP_RP) of connector (SC2203) on the MAIN unit?

YES Are there the audio signal inputs at pins (21) (SP_LP) and (25) (SP_RP) of connector (SC501) on the TERMINAL unit?

YES Does the audio signal come from pins (21) (SP_LP) and (25) (SP_RP) of SC501 to pins (5) (SP_LP) and (9) (SP_RP) 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 (P2701), speakers and their peripheral circuits.

NO Check the line between IC8001 and IC1403.

NO Check the line between SC501 and SC2203.

Check the line between SC2203 and IC1403 (D1305, D1312, Q1306 and Q1307, etc.).

Check the line between SC501 and IC2701, and their peripheral circuits (AMP_MUTE line, etc.).

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LC-42D64U/46D64U/52D64U

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

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

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

Is the HDMI_MUTE line as specified? Check the tuner (TU1101) and its peripheral circuits.

Check Q1301, IC1302 and their peripheral circuits. Are there the video signal outputs at pins (72) and (70) of connector

YES

Are there the video signal outputs (IF_OUT_P/N) at the pins(19) and (20) of tuner (TU1101) on the TERMINAL unit?

YES

(SC501) on the TERMINAL unit?

Check the line between TU1101 and SC501.

YES

Are there the video signal inputs at pins (72) and (70) of connector (SC2203) on the MAIN unit?

Check the line between SC2203 and SC501 connec-

YES

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

YES

tors.

NO Check the line between IC8001 and SC2203 (L2204, C2229, etc.).

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

YES

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

YES

Check the speakers and their peripheral circuits.

NO Check the line between IC8001 and IC1304.

NO Check D1306 and its peripheral circuits.

Check the IC8001 and its peripheral circuits.

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

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

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No monitor audio output

LC-42D64U/46D64U/52D64U

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

YES

Are there the audio signal outputs at pins (24) (LINE_L) and (25) (LINE_R) of IC1403 (CODEC)?

YES Does the audio signal come from pins (24) (LINE_L) and (25) (LINE_R) of IC1403 to pins (29) and (31) of SC2203 on the MAIN unit?

YES Are there the audio signal inputs at pins (29) (LINE_L) and (31) (LINE_R) of SC501 on the TERMINAL unit?

YES Does the audio come from pins (29) (LINE_L) and (31) (LINE_R) of SC501 to pins (2) (L) and (4) (R) of J505?

NO Check the bus line (SCL0/SDA0) and IC1403.

NO Check IC1403 and its peripheral circuits.

NO Check the line between SC501 and SC2203 connectors.

NO Check the line between J505 and SC501, and their peripheral cir-

Check the line between IC1403 and SC2203.

cuits.

Check the LINE_MUTE line and its peripheral circuits (Q507 thru Q509, etc.).

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LC42D64U

CHAPTER 5. MAJOR IC INFORMATIONS

Service Manual

[1] MAJOR IC INFORMATIONS

1. MAJOR IC INFORMATIONS

1.1. IC501 (VHiSM5351AF-1Q)

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

The analog audio/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).

The audio output signal from this IC flows into audio codec IC1403 (AK4682EQ).

1.2. IC2701 (VHiYDA147SZ-1Y)

The Class-D type digital audio power amplifier YDA147SZ gives maximum continuous output of 15 W/ch.

1.3. 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.

1.4. IC1403 (VHiAK4682EQ-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.

1.5. 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.

1.6. 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.

1.7. 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.

1.8. 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.

1.9. 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.

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1.10. IC8001 (RH-iXC376WJQZQ)

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 converter (ADC). 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.

1.11. IC8452 (RH-iXC268WJQZQ)

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

5 – 2

Page 58

LC-42D64U/46D64U/52D64U

㪠㪠㪫

㪡

㪬㪥㪠㪫

㪐㪐㪫㪧㪯㪛

LC42D64U

CHAPTER 6. OVERALL WIRING/BLOCK DIAGRAM

Service Manual

[1] OVERALL WIRING DIAGRAM (LC-42D64U)

㪋㪉㩹㪣㪚㪛㩷㪧㪸㫅㪼㫃

㪈㪐㪉㪇㬍㪈㪇㪏㪇

㪈

㪏㪇

㪚㪥㪋

㪣㪚㪛㩷㪚㫆㫅㫋㵘

㪚㪧㪮㪙㪯㪊㪏㪉

䇼㪣㪮䇽䇼㪧㪣䇽

㪚㪥㪍

QPWBHE337WJQZ

㪈㪋

㪚㪥㪊

㪋㪈㪈

QCNW-G165

㪈

䇼㪣㪘㪉䇽

㪊

㪋㪈

㪈

䇼㪣㪮䇽

㪈㪉㪇

䇼㪣㪧䇽

䇼㪣㪙䇽

㪈㪋

䇼㪧㪣䇽

㪋㪈

QCNW-G170WJQZ

㪩㪪㪄㪉㪊㪉㪚

㪈㪌

䇼㪢㪤䇽

㪢㪼㫐

㪈㪉

QCNW-G164WJQZ

㪛㪄㫊㫌㪹

㪘㪬㪛㪠㪦

㪛㪄㫊㫌㪹

㪙㪚㪤㪊㪌㪌㪊

㪛㪛㪩

䇼㪧㪛䇽

㪤㪘㪠㪥

䇼㪟㪤䇽

㪜㪌㪌㪏

䇼㪩㪘䇽

㪈㪈㪌

䇼㪬㪪䇽

㪈㪈㪋

䇼㪢㪤䇽

㪈㪋

䇼㪤㪘䇽䇼㪤㪘䇽

㪈㪉

㪟㪛㪤㪠

㪘㪬㪛㪠㪦

䌈䌄䌍䌉

㪬㪪㪙㪟㪧

䇼㪭㪛䇽

㪈㪈㪌

㪈

㪉

㪟㪛㪤㪠

㪪㪠㪛㪜

㪈

㪜㪋㪏㪏

㪉

䇼㪟㪤䇽

㪚㫆㫄㫇㫆㫅㪼㫅㫋

䇼㪬㪪䇽

㪭㪆㪣㪩

QCNW-G167WJQZ

QPWBHE321WJQZ

㪈㪉㪈

㪈㪈㪋

㪈

㪈㪌

QCNW-G166WJPZ

㪣㪜㪛

㪈㪉㪈

㪦㪧㪫㪠㪚㪘㪣㪦㪬㪫㪧㪬㪫

QCNW-G168WJQZ

㪈

㪈㪉

㪉

㪏㪇

䇼㪭㪛䇽

QCNW-F924WJQZ

㪈

䇼㪧㪛䇽

㪈㪉

䇼䌐㪜䇽

㪈

㪎㪐

㪛䊶㪘

㪈

㪫㪬㪥㪜㪩

㪈㪌

㪪㪮

QCNW-F923WJQZ

㪍

㪈

䇼㩷㪧㪜㩷䇽

㪫㪜㪩㪤㪠㪥㪘㪣

㪪

㪍

㪜㪉㪇㪏

㪭㪆㪣㪩

㪧㪦㪮㪜㪩㵘㪬㪥

㪩㪛㪜㪥㪚㪘㪉㪊㪌㪮

㪘㪭㪄㪪㪮

㪚㫆㫄㫇㫆㫅㪼㫅㫋

䇼㪩㪘䇽

4567 910

6 – 1

Page 59

㪋

㪉㩹㪣㪚㪛㩷㪧㪸㫅㪼㫃㪈㪐㪉㪇㬍㪈㪇㪏㪇

LC-42D64U/46D64U/52D64U

㪈

㪏㪇

㪚㪥㪋

㪣㪚㪛㩷㪚㫆㫅㫋㵘㪬㪥㪠㪫

㪚㪥㪊

㪏㪇

㪠㪥㪭㪄㪈㵘㪬㪥㪠㪫

㪉㪈

㪚㪧㪮㪙㪯㪊㪏㪉㪐㪫㪧㪯㪛

㪉

䇼㪣㪮䇽䇼㪣㪧䇽

㪚㪥㪊

㪋㪈㪈

QCNW-G165WJQZ

㪚㪥㪉

㪉㪇㪈

㪚㪥㪌

㪈

㪎

㪊㪈

㪈

㪐

䇼㪣㪘㪈䇽

䇼㪣㪙䇽

䇼㪣㪘㪈䇽

㪈

QCNW-G163WJQZ

㪊

QCNW-G161WJQZ

㪈

㪉㪈

㪈㪏

㪏

㪈

㪉

㪧㪦㪮㪜㪩㵘㪬㪥㪠㪫

QCNW-F922WJQZ

㪈

㪩㪛㪜㪥㪚㪘㪉㪊㪌㪮㪡㪨㪱

23WJQZ

䇼㪘㪚䇽

㪈

䇼㪘㪚䇽

㪈

㪋

㪘㪚㪄㪠㪥

㪠㪥㪭㪄㪉㵘㪬㪥㪠㪫

㪉㪈

㪩㪬㪥㪫㪢㪘

㪘㪣

㪘㪭㪄㪪㪮

䇼㪪㪧䇽

㪘㪤㪧

㪋

㪈

㪊㪈㪎㪮㪡㪨㪱

QCNW-G169WJQZ

㪉㪈

㪚㫆㫄㫇㫆㫅㪼㫅㫋

㪩

11 1312 14 15 16 18 1917

㪭㪆㪣㪩

㪣㪩㪄㫆㫌㫋

6 – 2

㪉㪈

Page 60

LC-42D64U/46D64U/52D64U

㫅㫅㪼㫃

㪥㪥㪠㪫

㪬㪥㪠㪫

㪫㪫㪧㪯㪘㩷㩿㪋㪍㪀㪫㪫㪧㪯㪱㩷㩿㪌㪉㪀

[2] OVERALL WIRING DIAGRAM (LC-46/52D64U)

㪋㪍㩹㪆㪌㪉㩹㪣㪚㪛㩷㪧㪸

㪈㪐㪉㪇㬍㪈㪇㪏㪇

䇼䌐㪜䇽

㪈

㪚㪥㪍

㪈㪋

QCNW-F923WJQZ

㪍

㪈

䇼㩷㪧㪜㩷䇽

㪫㪜㪩㪤㪠㪥㪘㪣

㪪

㪈

㪍

㪜㪉㪇㪏

㪭㪆㪣㪩

㪏㪇

㪚㪥㪋

㪣㪚㪛㩷㪚㫆㫅㫋㵘㪚㪧㪮㪙㪯㪊㪏㪉㪐㪚㪧㪮㪙㪯㪊㪏㪉㪐

䇼㪣㪮䇽䇼㪧㪣䇽

㪚㪥㪊

㪋㪈㪈

QCNW-F932

㪧㪦㪮㪜㪩㵘㪬

㪩㪛㪜㪥㪚㪘㪉㪊㪌㪮

㪘㪭㪄㪪㪮

㪚㫆㫄㫇㫆㫅㪼㫅㫋

㪈㪉

㪠㪥㪭㪄㪈㵘㪬㪥㪠㪫

㪈㪉

㪠㪥㪭㪄㪉㵘㪬㪥㪠㪫

QCNW-G151WJQZ (46) QCNW-F930WJQZ (52)

㪈㪌

䇼㪢㪤䇽

㪈㪉

㪢㪼㫐

䇼㪣㪙䇽

䇼㪣㪚䇽

䇼㪣㪘㪉䇽

㪏

㪈

㪐

㪈㪉

㪈

QCNW-G149WJQZ (46)

㪊

QCNW-F927WJQZ (52)

㪈

QCNW-G147WJQZ (46) QCNW-F925WJQZ (52)

QPWBHE336WJQZ

㪋㪈

㪈

䇼㪣㪮䇽

㪩㪪㪄㪉㪊㪉㪚

㪛㪄㫊㫌㪹

㪘㪬㪛㪠㪦

㪙㪚㪤㪊㪌㪌㪊

㪛㪄㫊㫌㪹

㪛㪛㪩

㪈㩷㪉㪇

䇼㪣㪧䇽

䇼㪣㪙䇽

䇼㪧㪛䇽

㪈㪊

㪈㪋

䇼㪧㪣䇽

㪋㪈

QCNW-F924WJQZ

㪈

㪈㪉

䇼㪣㪘㪉䇽

QCNW-G157WJQZ

䇼㪧㪛䇽

㪤㪘㪠㪥

㪈

㪉

㪈㪉

㪬㪪㪙㪟㪧

㪈㪉

㪟㪛㪤㪠

㪪㪠㪛㪜

㪈

㪜㪋㪏㪏

㪉

㪚㫆㫄㫇㫆㫅㪼㫅㫋

㪭㪆㪣㪩

䇼㪭㪛䇽

䇼㪟㪤䇽

䇼㪬㪪䇽

QCNW-G154WJQZ (46) QCNW-F934WJQZ (52)

㪈㪉㪈

QCNW-G153WJPZ (46)

㪈㪈㪋㪈㪈㪌

QCNW-F933WJPZ (52)

QPWBHE322WJQZ (46) QPWBHE323WJQZ (52)

㪟㪛㪤㪠㪘㪬㪛㪠㪦

䌈䌄䌍䌉

䇼㪟㪤䇽

㪈㪉㪈

㪦㪧㪫㪠㪚㪘㪣㪦㪬㪫㪧㪬㪫

QCNW-G155WJQZ (46) QCNW-F935WJQZ (52)

㪜㪌㪌㪏

䇼㪩㪘䇽

㪈㪈㪌

䇼㪬㪪䇽

㪈㪈㪋

䇼㪢㪤䇽

㪈㪋

㪉

㪈

䇼㪤㪘䇽䇼㪤㪘䇽

㪏㪇

㪎㪐

㪈

㪈㪌

䇼㪭㪛䇽

㪪㪮

㪛䊶㪘㪫㪬㪥㪜㪩

㪈㪌

䇼㪩㪘䇽

4567 910

㪣㪜㪛

㪈

6 – 3

Page 61

㩹㪆㪌㪉㩹㪣㪚㪛㩷㪧㪸㫅㪼㫃

㪈㪐㪉㪇㬍㪈㪇㪏㪇

㪚㪥㪋

㪏㪇

㪈

㪚㪥㪊

㪣㪚㪛㩷㪚㫆㫅㫋㵘㪬㪥㪠㪫㪚㪧㪮㪙㪯㪊㪏㪉㪐㪫㪧㪯㪘㩷㩿㪋㪍㪀㪚㪧㪮㪙㪯㪊㪏㪉㪐㪫㪧㪯㪱㩷㩿㪌㪉㪀

㪣㪮䇽䇼㪣㪧䇽

㪚㪥㪊

㪋㪈

QCNW-F932WJQZ

㪚㪥㪉

LC-42D64U/46D64U/52D64U

㪉㪈

㪏㪇

㪉

㪠㪥㪭㪄㪊㵘㪬㪥㪠㪫

㪉㪇㪈

㪚㪥㪌

㪈

㪎

㪈㪉

䇼㪣㪚䇽

㪈

䇼㪣㪘㪈䇽

㪈㪊

QCNW-G148WJQZ (46) QCNW-F928WJQZ (52)

㪊㪈

䇼㪣㪘㪈䇽

㪈㪏

㪈

㪉㪈

㪏

㪈

㪉

㪧㪦㪮㪜㪩㵘㪬㪥㪠㪫

QCNW-F922WJQZ

㪈

㪩㪛㪜㪥㪚㪘㪉㪊㪌㪮㪡㪨㪱

WJQZ

䇼㪘㪚䇽

㪈

䇼㪘㪚䇽

㪋

㪈㪋

㪘㪚㪄㪠㪥

㪠㪥㪭㪄㪋㵘㪬㪥㪠㪫

㪉㪈

㪩㪬㪥㪫㪢㪘

㪊㪈㪎㪮㪡㪨㪱

㪘㪤㪧

䇼㪪㪧䇽

㪋㪈

QCNW-G156WJQZ (46) QCNW-F936WJQZ (52)

㪣

㪉㪈

㪘㪭㪄㪪㪮

㪉

㪚㫆㫄㫇㫆㫅㪼㫅㫋

㪭㪆㪣㪩

㪣㪩㪄㫆㫌㫋

㪈

11 1312 14 15 16 18 1917

6 – 4

Page 62

LC-42D64U/46D64U/52D64U

[3] SYSTEM BLOCK DIAGRAM

SYSTEM BLOCK DIAGRAM

Terminal

CVBS

V*.L/R

YPbPr

CVBS V*.L/R

CVBS

V*.L/R YPbPr

VIDEO *

COMP *

VIDEO *

CVBS *

VIDEO *

CVBS *

COMP *

CVBS *

SIDE

COMP *

CVBS/LR

INPUT

Component

INPUT

CVBS/LR

S Video

From SIDE

P2701

EXT-SP

[SP]

AV SWITCH

SM5351AF

Main Out

AUDIO Out

+5V

+9V

IC2701

SP AMP

YDA147SZ

AMP+15V

AIN.L/R

STANDBY

PROTECT

Main Y/V Main C/Cb Main Cr

HD,VD

AMP_MUTE

MAIN

IF to MAIN I/F

SIDE

IC803

TMDS

SII9181

Disclete

Mute

TxD/RxD

Vbrt

IC2005

DAC

M62334FP

I2C_3 I2C_2 I2C_1 I2C_0

IF in

AGC/AFT

SIF

HDMIin *2

H/V RGB in

Digital IN DVIDATA[29:0] DVICLK DVIHSYNC DVIVSYNC DVIDE

DTV/I2S

DTV/SPDIF

RESET

N_SRESET

N_DBG_RST

P9301

Soft writing

way connector

P2603

TS IN/OUT

Digital AV decode &

Local BUS/PCI

33/27MHz

+3.3V

IC8452

FLASH

64Mb

IC8101

BCM355

CVBS/S/YPbPr

UART-A

Mute

Disclete

LINE_MUTE

12.288MH

+3.3V

IC1301

M62320

AIN.L/R

HDMI_L/R

RGB_L/R

DSP_SDOUT1,2

X' tal

+C1604

+C1604 TMDS-SW SII9185

In3

In2

In1

Sel_1/2/3

I/O

+5V

I2C1

IN1

IN2

IN3

IN4

IN5

IN6

IC1303

HDMI_MUTE

(100KHz 5V)

+5V_A

OUT1

IC1403

OUT2

CODEC

AK4682EQ

OUT3

I2S

IC1401

Sound DSP

VHINJU26120-1Y

I2C2(400KHz)

I2C0 (100KHz 3.3V)

+5V

LINE_L/R

+3.3V

SPOUT_L/R

I2C3 (400KHz 5V)

RESET_OUTb

+3.3V

IC8454

EEPROM

64kbit

I2C0 (100KHz 3.3V)

54.000MHz

X8101X' tal

54MHz

COD_SDOUT

COD_LRCK,COD_BCK

DSP_MCLK,DSP_BLKIN,DSP_LRCK

DSP_SDIN1

SPDIF

RESET_OUTb

N_CPU_RST

3.3V

IF to MAIN I/F

+5V

TU1101

Analog/ Digital Tuner

AGC

D_IF

I2C

L/R

SIF

CVBS

AFT

Audio Out

RF IN

+3.3V

IC9003

HDMI_L/R

RGB_LR

+5V_A

RX_x8

IC1601

EEPROM

RX_x8

YCbCr (D5)

CVBS

RS232C TxRx

ISL83220

OPT_OUT

IC1305

IC2202

EEPROM

To Terminal

EEPROM

Mute

IC1603

EEPROM

IC802

RS-232C

HDMI Audio

INPUT

RGB Audio

(Mini Plug)

OPTICAL

OUT

D-SUB

RGB

HDMI 1

HDMI 2

COMP/CVBS

SC801

HDMI_3

J801

USB

4567 910

6 – 5

Page 63

LC-42D64U/46D64U/52D64U

CVBS/S/YPbPr

101

M3553

ode & Main CPU

LVDS OUT

From CPU

SC9201

Connector for

model distinction

SC9202

Connector for

panel distinction

MODEL_DET[0:4]

IC8305

VTT

IC8151-4

DDR1(400)

256Mb*4

CNVss

Connector

for debugging

BU+3.3V

IC2001

Reset

RST_H8FLS_CPLD

FLAS_W_CPLD RS_BUF_CNT

Connector for

Thermister

PNL_DET[0:4]

CN9201

P2001

soft write/

emulator

RxD,TxD

IC2008

Gate

7WH126FU

20MHz

Xtal

PM_REQ, CBOOTS

N_SRESET

RxD,TxD

THERMO

20MHz

AFT

DET_PNL12V

BU+3.3V

IC2002

M16C

Monitor Micom

UART A/D

A/D

I/O I/O

A/D

I/O

INT0

BU+3.3V

HDMI_CEC_PLG0/1

IC2009

HDMI_CEC_IN

Gate

CEC_I_UCOM

Commonness

CEC_CK_UCOM

FRAME,R/L,U/D,TEMP[3:0],O/S_SET

I/O

STB

I/O

From CPU

I2C

ERR_PNL

AC_DET

I/O

I2C0

SHIP_EN,PNEL_EN

To HDMI

ROMSEL0

STB_CPU

From CPU

EEPROM_SCL/SDA

BU+3.3V

IC2004

EEPROM

BR24L08F

DETECT

Von

Vbrt

[LV] P2601

[LB]

[SH]

P2602

(41p FPC)

P2603

(20pin)

(4pin)

POWER

LCD

EAGLE2

(20pin)

CONT

[SH]

P2602

EAGLE2

[LV]

(41p)



80 FFC

LCD

PANEL

1920x1080

80 FFC

㧦

㧦

5-Wavelength

(12pin)

INVERTER

[LC]

(12pin)

Inverter circuit

[LA]

(3pin)

+60V

+10V

3/4

INVERTER

1/2

[LB]

9pin)

Inverter circuit

[LA]

(3pin)

[LC]

[PG]

(6p)

UART-C

I/O

USB

HP_PLUG

BU+3.3V

[RA] P2201(15p) [RA] P101(15p)

R/C OPC LED

BackUp System

BU+5V BU+3.3V

MAIN System

A9V A5V

OPC_LED,POW_LED_R,POW_LED_G,LED_YOYAKU

KEY1,KEY2,STANDBYPOW

R/C

HP_PLUG

D5V D3.3V D2.5V D1.8V VL1.8V D1.67V D1.0V etc

Power circuit

[KM] P2002(4p) [KM] P105 (4p)

LED

KEY

MENU Power

Input selection

Tuning

Volume

DET_PNL12V,DET_10V,DET_5V

AC_DET

PS_ON

UR15V

BU5V

PNL_ON

From CPU

[PD] POWER P9701(12PIN)

[FB] (3p)

[FC] (3p)

PS_ON

PNL-POW

D-POW

PFC

MAIN

Waiting

Inverter

BU5㨢AC

10v UR +13v (PNL 12v

[AC] (2p)

UART-A

UART-B

11 1312 14 15 16 18 1917

6 – 6

Page 64

LC-42D64U/46D64U/52D64U

4567 910

LC42D64U

CHAPTER 7. PRINTED WIRING BOARD ASSEMBLIES

Service Manual

[1] MAIN Unit

MAIN Unit (Side-A)

7 – 1

Page 65

LC-42D64U/46D64U/52D64U

11 1312 14 15 16 18 1917

7 – 2

Page 66

LC-42D64U/46D64U/52D64U

4567 910

C8458

MAIN Unit (Chip Side-A)

D9606

R9618

C8174

C8175

C8164 C8165

C9612

VER1

C9613

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C9622

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R8264 R8265 R8266

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LUG2202

L9641

R8184 R8185

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TP8076 R8056 R8046 R8045 R8044

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R8072 R8073 R8074

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R8048 R8050 R8049

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Q2601

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R2632C2610

C9616

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C9625

C8186

C8189

C8190

C8191

C8172

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L9603

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R8606 R8605 R8603 R8604

R8602 R8601

R8618 R8617 R8619

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P2601

P2602

C8607

P2603

R2619 C2604

R2602R2601

R2603

TL2668

TL2654

FL2615

R2616

L2612

L2605

L2610

L2604

L2609

L2603

L2611

L2608

L2602

L2607

R2623

TL2667

TL2666

R2629

R2636

IC8601

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C2606

TL2663 Q2603

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R2635

R2633

TL2653

R2634

IC1304

R1311

C1313

C1310

Q1312

R1333

P9202

C1311

D1306

L1301

C1312

R1603

LUG2203

SC1601

SG1603

SG1609

SG1615

SG1621

SG1604 SG1610

L2601

LUG2201

P2203

FDC1

L2606

SC9202

R9203

R9206

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R9021

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R9023

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R9002 R9001

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R9022

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D9007 R9024

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LC-42D64U/46D64U/52D64U

R1603

8011

TP8013

8012

TP8045

8015

TP8051

TP8048

IC8452

R8099

R2279

C2247

R2280

TP8014

C2241

C8093

C8107

R8146

LUG2203

P9301

R8098

C2240 C2239

L2207

R8026

C2246

R8040

C8121 C8123 C8122 C8124

C2238 L2206 L2205 C2237

R8094 C8128 C8125 C8126 C8127 C8119 C8118 C8117 C8120 C8147 C8148 C8131 C8132 C8133 C8129 C8130

R8051

SG1603

SG1609

C2236 C2235

C8091

C8089

R8058

R8054

R8047

R8110

R8071

R3345 R3347

SG1615

TP8078

TP8076 R8056 R8046 R8045 R8044

R8109

R8072 R8073 R8074

SG1621

R9306

R8052

TP8077

R8070

R8048 R8050 R8049

R8905

SG1604 SG1610

C2229

R3343

L2204

R3346 R3348

SG1616 SG1622

C8458

R9303

R9304

R8502

R9311

D9301

IC9301

C9301

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Q1619

R8503

R8907

R1725

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R1726

R1730

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Q1620

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C1676

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R1727

C8513

C2020

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LF1

X8501

SG1601

C8515 R8511 R8510

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SG1607

SG1613

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R9013

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C1601

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R2014

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R2052C2014

IC2008

R2072 C2026

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R2016

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R1618

R8909

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TL3302

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C3323

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R2309

R2207

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C2221

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R2281

R2210

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FB2204

IC2203

C2231

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R3312

R3310

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R2235

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R2226

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D2208

C2215

C2216

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R2277

R1423

C1404

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R2234

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R2213

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C3219

C2214

R2227

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R2233 R2238 D1304

C1432

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C2223

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D1303

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R1336

D1312

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R1403C1405

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D1314

R1304

R2215 C2207

C2201

R2010

R1407 R1418

R1312

D1313

R1412

R2047

R2009 C2005 R2008 C2004

R1416

R1337

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R1449

FB2005

FB2004

FB2003

D1309

D1308

IC1402

C1412

C9719

R1417

C1411

R1419

R1421

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LUG2204

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SC1601

SC1602

J1601

SC2201

11 1312 14 15 16 18 1917

7 – 4

J2201

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MAIN Unit (Side-B)

7 – 5

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7 – 6

Page 70

LC-42D64U/46D64U/52D64U

4567 910

C8082

C8905

C8909

MAIN Unit (Chip Side-B)

TL2280

TL2279

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TP2005

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TL1620

TL1622

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TL9219

R2006 R2046

R2004

TP2004

R2078

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TP2015

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R2036

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R2058

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TL9211

R2070

R2029

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R1686C1653

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C2008C2012R2013

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C1633 C1632

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TL2318

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TL2319

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TL2201

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TL2329

TL2322

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TL2003

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TL2263

TL2262

TL2260

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TL2231

TL1602

TL1601

TL1603

TL1607

TL1604

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L9334

53 L9335

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R8057

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FL8006

Q1602

R1620

TL9323

TL9321

TL9319

Q9701

R8016

C8074

R8131

C8902 C8904 C8906 C8908 C8910

C8104C8109C8099

R8039

R8145C8106

FB8003

R1723

TL1606

Q9301

TL8457

TL9386

C8073

C8084

C8090

TP8050

C8043

C8102

C8096

C8052 C8048 C8027

C8079

C8003

C8014

D9703

R9301

C8070

C8061 C8066

C8075R8100

R9314

R8017

TL9303

C8056

C8011

D9713

R8140

TP8046

C8054

C8042

R8014

C8004

C8022C8025

C8040

TL9206

TL9204

R8013

C8005

C8065C8038R9324

R8007

C8058

C8021

C8036

C8059

R8136

R8137

TL9203

R9212

R9202

TL9221

TL9202

FL8002

C8007

C8060

C8062C8006

TL9722

R9628

R9317

TL9240

R9207

TL9224

TL9205

TL9724

C9718

D9603

R8010

C8018

C8008

R8150

TL9239

R9208

TL9729

IC9703

C9713

R9313

TP8020

R9310 R9315

C8020

C8023

C8063

FB8001

TL8029

R9204

TL9223 R9211 TL9208

TL9222

TL9708

R8096 R8097

R8065

FL8003

C8057

TL8033

FL8009

TL9201

TL9717

TL9731

C9710

D9643

D9642

R9309

C8050

C8019

C8017 C8015

C8013 C8010

C8034

C8032

C8067

C8086

TL9241

TL9207

TL9732

R8009

TP8041

C8088

TP8009

C8068

C8051C8009

FB8002

R8001

C8085

TL9733

R8031

R8059

C8044

C8053 C8049

C8047

C8039 C8037

C8045

C8035 C8033

C8030R8141

IC8002

TL9734

R9645

C8046

R8138

C8028

R8129

C8024R8093

FL8007

TL9716

R8116

R8122

R8114

TP8023

C8012

C8026

C8076

R8124

TL9702

TL9730

R9018

C8016

C8087

TL9715

TL9727

TL9728

R8120

C8002

TL9710

R9625

R9611

C9604 R9610

TL9711

TL9725

C8001

R8267 C8055

C8041

C8031 R8163 R8168

C8029

TL9726

IC9602

R9612

R8166

TL9603

R8034

TL9701

C9607

TL9723

C9629

D9605

R8029

R8037

R8167

R8251

C9643

D9641

R8030

R8172R8174R8201R8199R8175R8177

R8055

R8169R8180

C9642

R8202

R8171R8173R8200R8198R8176R8178R8179

C9006

R9641C9644

R8165

R8164

R8181

R8170

IC9641

C8223

R9642 R9643

C9641

R9644

C8229 C8228

C8227

C8226

C8225

C8224

C8222

C8221

C8220

R8214

R8206R8207R8208R8209R8210R8211R8212R8213

R8203R8204R8205

TL9602

TL9604

C9606 R9601

R9603

C9605 C9601 R9606 R9605

C9610

R9604

R9607 R9608

R9613

C8178

C8180 C8179

C8181

C8159

C8161 C8156

C8160

R9602

C9602

IC9601

C8182

C8183

C8163

C8162

C8176

C8177

C8157

C8158

C8184 C8185

C8187 C8188

C8168 C8167

C8169 C8170

R9629

TL9601

C9617

C9609

C9611

R8223

R8224

C8206

R8226

C9614

R8225

C8205

C8218

C8219

LC-42D64U/46D64U/52D64U

TL9005

TL9001

TL9003TL9002

R9035

C8195C8194 TL8152

C8193

TL9605

C8610

TL8151

C8606

R8616

R8611

TP8625

TP8622

C8192

IC8155

R8033

C8611

R9034

R2622 R2615

C9005

R8028

TL2651

TL2602

TL2640

TL2639

FB2608

C2607 R2638

TP2602

TP2601

TL2634

R8036

C8605

TL2645

TL2628

FB2606

TL2623

TL2652

R2637

R2604

R8027

C8608

TL2655

TL2641

TL2646

TL2642 TL2657

FB2607

FB2605

IC2602

C2608

TL2629

TL2656

TL2644

TL2626

FB2604

FB2603

IC2601

TL2649

TL2648

TL2635

TL2631

TL2630

R8612

TL2662

TL2647

TL2658

TL2643

TL2603

TL2627

TL2625

TL2624

TL2601

TL2621

TL2610

TL2609

C2609

C2602

TL2661

TL2664

TL2669

R2631

TP2606

TP2604

TL2637

TL2638

FB2602

TL2632

TP8626

C8609

TL2660

TL2659

TL2650

TP2605

TP2603

TL2636

TL2633

R8614 R8613

IC9605

R9614

R9616

R8227

C9608

R9617

R8240R8243R8241R8244R8242

C9615R9609

C8216

C8215

C8214

C8213

C8212 C8211 C8210

C8209 C8208

C8207

C8217

C9623

R8270R8271

LF2

TL9006

TL9010TL9007

TL9004

TL9008

TL9238

TL9237

TL9275

TL9236

TL1604

TL1303

TL1304

TL1302

TL9009

11 1312 14 15 16 18 1917

7 – 8

TL9235

TL9234

BAR4

BAR2

TL2206

TL2205

FDC2

TL2204

Page 72

LC-42D64U/46D64U/52D64U

[2] TERMINAL Unit

TERMINAL Unit (Side-A)

4567 910

7 – 9

Page 73

TERMINAL Unit (Side-A Chip)

LC-42D64U/46D64U/52D64U

FB519

D518

R560

FB517 R554 R552

FB518 R558 R555 C558

FB516

R545

FB515

FB513

C556 C555

C557

D517

R548

D516

R542

D515

R541

R574

FB524

FB520

D521

R563

C1101

D520

C565 R572 FB521

C548

C560

C551

C553

TP503

R585

TP1101

R565

C562 R566

C561

TP501

C566

FB1101

FB1102

D519 R569

R510

C502

TU1101

C1102

C563

FB505

R509

R512

C511

FB506

R511

C1105

R1105

C1103

D514

D513

D523

D509

D508

R1101

C536

C532

C527

P501

FB507

R514

D507

D510

R515

R516 R522 R529

R1102

R1103

R1116

IC1102

C1104

C1106

R1111

R1106

C1131

R1112

IC1101

TP1102

R1104

C1116

C1114

R597 R596

Q510

C575

R595

R594 R593

R550

C554

Q502 Q504 Q506

R547

R546 R556 R567

Q501

R543 R553 R564

R527 R538

C574

C513 R537 R533 R531

R589

R588

R523

C522

R520

R518

R517

C520

C517

C514

C504 C505 C506 C507 C508 C509

C541

D501 D502

FB508

FB509

FB510

R526

D511

D512

C1107

R1114

R1115

R1113

R1109

R1110

R1107

R1118

Q1101

R1119

Q1102

R1120

R1121

R1126

R1123

R1124

C1120

C1121

C1117

C1113

C1132

C1133

R1122

IC1103

C1115

C1118

C1119

C1123

R1125

R1127

R573

C564

C559

R551

R562

R561

R571

R549

R557

R559

R568

R570

Q503

Q505

C546

R544

C545

C539

C544

IC501

C512 C510

R501

R502

R503

R504

R505

R506

R507

R508

C530

C524

C518

D504 D505 D506

D503

C1112

C1124

FB514

C550

C1108

R1128

C1122

R1130

C543

C519 C516

R513

C1125

R1129

C537

C1109

C1110 R1117

C1126

C1129

C1127

C547

IC503

D524

C1128

C552

C549

C577

C576

C534 C533 C531 C529 C528 C526 C525 C523 C521 C515

C1111

L1101

C1130

R534 R532 R530 R528 R525

R524 R521 R519

C578

C501

C503

R587

R586

C571

R583

R584

SC501

R575

C567

R576

R2701

Q508

Q509

Q507

R577

C568

R578

FB2701

R2708

C2703

R2718

FB2709

FB2708

FB2707

FB2706

R2719

CAME1

R2740

R2743

C2736

Q2703

Q2702

R2746

R2745

C572

Q2701

C2735

IC502

P2702

TP502

R2751

R2750

R2749

R2747

C2739

J506

J504

J503

J502

C573

FB502

D522

R591

R590

J501

C535

C538 R535 FB511 R536

C540

C542 R539 FB512 R540

C2731

C2728

C2727

L2704

L2703

C569

R580 R579

FB522

J505

C570

R582 R581

FB523

R2714

TP2702

C2737

D2701

FB2705

C2738

C2742

4567 910

D2702

FB2704

C2743 C2744

P2701

R2713

R2707

R2754

R2753

R2717

C2748

C2716

C2723 C2724

Q2704

FB2703

D2703

C2740

C2745

D2704

R2705

R2715

R2741

FB2702

C2741

R2704

R2744

R2710

C2707

C2726

C2725

C2706

R2742

R2752

R2706

C2713

IC2701

R2731

L2702

C2730

R2703

C2705

R2730

R2702

C2704

C2711

R2725

R2709

R2726

C2712

C2717

C2710

L2701

FB525

FB504

P502

FB503

C2747

D2705

TP2701

C2746

7 – 10

Page 74

LC-42D64U/46D64U/52D64U

[3] SIDE Unit

SIDE Unit (Side-A)

4567 910

7 – 11

Page 75

SIDE Unit (Chip Side-A)

LC-42D64U/46D64U/52D64U

R915

FB904

R911

D904

FB905

J902

R912

D905

R913

FB906

J901

FB901

FB902

D906

R906

D903

R914

R907

C903

R909

P901

LUG902

C904

R908

R910

J801

C816

FB903

R831

D810

R810

R814

IC807

R838

C829

R833

C832

C818

C833

C801

C827

IC804

Q803

R828

R825

R826

C819

D809

R813

R827

R829

L805

L806

L807

L808

R832

C820

C821

C822

C823

D807

Q804

Q807

IC805

Q806

R836

C824

C828

C804

IC801

FB805

R804

C826

R835

C805

R805

R809

D808

SC802

C825

IC806

FB802

C808

C809

C813

C815

C814

R817

IC803

R837

C812

C831

C811

C830

C817

C810

R811

R818

R824

R808

Q805

IC802

D806

P801

Q802

R834

R803

D803

Q801

R801

D804

D801

L801

L803

L804

L802

R806

D802

R807

C802

D805

R815

R812

C806

C807

SG801

SG805

SG802

SG806

SG803

SG807

SG804

SG808

R816

R802

C803

R823

R822

R820

R821

R819

VA802

VA801

SC801

J802

LUG901

4567 910

7 – 12

Page 76

LC-42D64U/46D64U/52D64U

[4] R/C, LED Unit

R/C, LED Unit (Side-A)

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

R101

C102

R102

R117 R137

Q104

R138

SLD101

D101

C105

R136

R105

Q103

R106

R132

RMC101

IC101

R135

D103

R108

R109

R104

D114

C107

C104

R107

Q102

R121

R126

Q105

R110

R123

Q106

R127 R122

R116

Q107

C101

D116

R118

D115

R124

C110

R103

RMC102

R119

IC102

C108

C103

C111

R120

P101

R139 R140

P102

4567 910

7 – 13

Page 77

[5] KEY Unit

LC-42D64U/46D64U/52D64U

S155

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

R153

D152

S154

S152

R151

D151

S151

R152

S153

R154

S156

S157

D155

P151

4567 910

7 – 14

Page 78

LC-42D64U/46D64U/52D64U

— MEMO —

7 – 15

Page 79

LC42D64U

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM

1. VOLTAGE MEASUREMENT CONDITION:

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

2. INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

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

(K=kΩ=1000Ω, M=MΩ).

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

(K= ± 10%, F= ± 1%, D= ± 0.5%)

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

CAPACITOR

1) All capacitors are µF, unless otherwise noted.

(P=pF=µµF).

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

CAUTION:

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

LC-42D64U/46D64U/52D64U

Service Manual

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.

8 – 1

Page 80