protech HDM-900WD Service manual

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LC-40D68UT

SERVICE MANUAL

No. S40F340D68UT/

LCD COLOR TELEVISION

MODEL

LC-40D68UT

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

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

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

PRECAUTIONS A PRENDRE LORS DE

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

PRECAUTIONS FOR USING LEAD-FREE

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

CHAPTER 4. REMOVING OF MAJOR PARTS

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

CHAPTER 5. ADJUSTMENT

CHAPTER 6. TROUBLESHOOTING TABLE

OUTLINE

MAJOR SERVICE PARTS ................................iv

CHAPTER 1. SPECIFICATIONS

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

CHAPTER 7. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM......................7-1

[2] SYSTEM BLOCK DIAGRAM.........................7-2

CHAPTER 2. OPERATION MANUAL

Parts Guide

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS ................................................ 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.

This document has been published to be used for after sales service only.

The contents are subject to change without notice.

LC-40D68UT

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: FOR CONTINUED PROTECTION

AGAINST A RISK OF FIRE REPLACE ONLY WITH

SAME TYPE FUSE.

F701 (250V 6.3A)

F721 (300V 2A)

F4732 (250V 1A)

• 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

AC SCALE

BEFORE RETURNING THE RECEIVER (Fire &

Shock Hazard)

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

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

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

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

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

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15

µF 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

1.5k ohm

10W

0.15

µF

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.

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.

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.

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

i

LC-40D68UT

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.

1.

AVERTISSEMENT

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

2.

Débrancher le récepteur avant toute réparation.

PRECAUTION: POUR LA PROTECTION CON-

TINUE CONTRE LES RISQUES D'INCENDIE,

REMPLACER LE FUSIBLE

F701 (250V 6.3A)

F721 (300V 2A)

F4732 (250V 1A)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE

CHOC ELECTRIQUE

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

3.

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.

4.

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.

•

5.

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

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

•

•

•

A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ

10 watts en parallèle avec un condensateur de 0.15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre.

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

Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance.

Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.)

La tension de pointe mesurèe ne doit pas dépasser 0.75V (correspondante au courant CA de pointe de 0.5mA).

Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.

DVM

ECHELLE CA

1.5k ohm

10W

0.15 µF

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.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ii

LC-40D68UT

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

ZHNDAi126500E

ZHNDAi12801KE

PRICE

RANK

BL

BK

BM

PART

DELIVERY

J

J

J

DESCRIPTION

φ0.3mm 250g (1roll)

φ0.6mm 500g (1roll)

φ1.0mm 1kg (1roll)

iii

Service Manual

MAJOR SERVICE PARTS

PWB UNIT

Ref No.

N

N

N

N

N

N

N

OTHER UNIT

Parts Code

DUNTKF463FM02

DUNTKF465FM02

DUNTKE266FM02

DUNTKF096FM01

RDENCA393WJQZ

9JS-5540T04C04

9JS-1940T04001

MAIN Unit

TERMINAL Unit

KEY Unit

R/C, LED Unit

POWER Unit

LCD CONTROL Unit

INVERTER Unit

Ref No.

N

Parts Code

R1LK400D3LF31Z 40" LCD Panel Module Unit

IC FOR EXCLUSIVE USE OF THE SERVICE

Ref No.

IC602

IC1610

IC1611

IC1612

IC2002

IC8451

SERVICE JIGS

Parts Code

VHiS24CS02JHES

VHiR24002AS3YS

VHiR24002AS2YS

VHiR24002AS4YS

RH-iXC165WJN5Q

RH-iXC895WJN1S

Ref No.

N

N

N

N

N

N

Parts Code

QCNW-G401WJQZ

QCNW-H649WJPZ

QCNW-H762WJQZ

QCNW-K865WJQZ

QCNW-K866WJQZ

QCNW-K867WJQZ

IC R1EX24002ASAS0A

IC R1EX24002ASAS0A

IC R1EX24002ASAS0A

IC R1EX24002ASAS0A

IC R5F212A8SNFP

IC MX25L6405DMI-12G

Description

Description

Description

Description

L=1000mm 4-5pins, Main to Key (KM)

L=1000mm 4pins, Main to Speaker (SP)

L=1000mm 10pins, Main to R/C LED (RA)

L=1000mm 51pins, Main to T-CON (LW)

L=1000mm 12-14pins, Main to Power (PD)

L=1000mm 14pins, Power to Inverter (LB2)

LC-40D68UT

Q’ty

1

1

1

1

1

1

Q’ty

1

1

1

1

1

1 iv

LC-40D68UT

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Service Manual

LCD panel

TV

Function

Audio out

Terminals

OSD language

Power Requirement

Power Consumption

Weight

Size

Item

BTSC System

8W 2

Model: LC-40D68UT

Resolution

TV-standard (CCIR)

Receiving

Channel

VHF/UHF

CATV

40" Class (40" Diagonal)

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

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-135ch (non-scrambled channel only)

Digital Terrestrial

Broadcast (8VSB) 2-69ch

Digital cable *1

(64/256 QAM) 1-135ch (non-scrambled channel only)

Audio multiplex

INPUT 1

INPUT 2

INPUT 4

AV in, COMPONENT in

COMPONENT in

ANALOG RGB (PC) in (15-pin mini D-sub female connector),

Audio in (ø 3.5 mm stereo minijack)

Rear

INPUT 6

INPUT 7

ANT/CABLE

AUDIO

HDMI in with HDCP, Audio in (ø 3.5 mm stereo minijack)

HDMI in with HDCP

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

Audio in (ø 3.5 mm stereo minijack)

DIGITAL AUDIO OUTPUT Optical Digital audio output 1 (PCM/Dolby Digital)

Side

OUTPUT

INPUT 3

INPUT 5

SERVICE

TV + stand

TV only

Dimension

(W H

*2

D)

TV + stand

TV only

Operating temperature

Audio out

AV in

HDMI in with HDCP

Software update

English/French/Spanish

AC 120 V, 60 Hz

170 W (0.4 W Standby with AC 120 V)

33.1 lbs./15.0 kg

28.7 lbs./13.0 kg

38 7 /

8

26 9 /

64

38 7 /

8

24 19 /

64

12

4

3 /

1 /

4

8 inch inch

32°F to 104°F (0°C to 40°C)

*1

*2

Emergency alert messages via Cable are unreceivable.

The dimensional drawings are shown on the Spanish operation manual.

• 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.

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.

Part name

Wall mount bracket

Attachment

Model number

AN-37AG2

AN-37P30

1 – 1

LC-40D68UT

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

TV (Front)

Service Manual

TV (Rear/Side)

Antenna/Cable in

OUTPUT terminals

INPUT 1 terminals

*1

Remote control sensor

OPC sensor *

OPC indicator

POWER indicator

* OPC: Optical Picture Control

*1

INPUT 3 terminals

AC INPUT terminal

*3

INPUT 2 terminals

AUDIO terminal

(shared for INPUT 4 and INPUT 6)*4

INPUT 7 terminal (HDMI)

INPUT 6 terminal (HDMI)

INPUT 4 terminal (PC-IN)

DIGITAL AUDIO OUTPUT terminal

INPUT 5 terminal

(HDMI)

SERVICE terminal

*2

POWER button

MENU button

INPUT button

Channel buttons

(CH / )

Volume buttons

(VOL / )

*1 External equipment connection.

*2 Button operations.

*3 Connecting the AC cord.

*4 Details on the PC Audio Select function.

• The illustrations in this operation manual are for explanation purposes and may vary slightly from the actual operations.

2 – 1

LC-40D68UT

Direct Button Operation

Changing Volume

You can change the volume by pressing VOL / on the TV or on the remote control unit.

To increase the volume, press VOL .

To decrease the volume, press VOL .

20

Audio status

Output device

Speaker

Output Select

Fixed

Variable sound

Variable

Mute

When "Output Select" is set to "Variable", the indicator on the screen changes as shown below.

60

POWER

You can turn on the TV or put it on standby by pressing POWER on the TV or on the remote control unit.

Changing Channels

You can change channels by pressing CH / or 0–9,

• (DOT).

Examples:

To select a 1 or 2-digit channel number (e.g., Channel 5):

Press 5 ENT.

To select a 3-digit channel number (e.g., Channel 115):

Press 1 1 5 ENT.

To select a 4-digit channel number (e.g., Channel 22.1):

Press 2 2 • (DOT) 1 ENT.

When selecting a 1-digit channel number, it is not necessary to press 0 before the number.

When you enter 0–9 only, channel selection will be made if there is no operation within a few seconds.

If you push "0" by itself, nothing will happen.

Complete the above steps within a few seconds.

When you enter 0–9 and • (DOT), channel selection will be made if there is no operation within a few seconds.

FAVORITE CH

You can select 4 preset favorite channels in 4 different categories.

Press A, B, C or D.

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

Details of favorite channel settings.

Details on the Output Select function.

MUTE

Mutes the current sound output.

Press MUTE.

" " will be displayed on the screen for 30 minutes, and the sound is silenced.

Within 30 minutes of pressing MUTE, mute can be canceled by pressing VOL / or MUTE.

Mute will be canceled after 30 minutes have passed.

However, the TV will not suddenly output a loud sound as the volume level is set to 0 automatically.

Sleep Timer

Allows you to set a time when the TV automatically switches to standby.

Press SLEEP.

The remaining time displays when the sleep timer has been set.

Each time you press SLEEP, the remaining time switches as shown below.

Off 30 60 90 120

When set, the time automatically starts counting down.

If you want to adjust the sleep timer, you can press SLEEP twice then change the time setting.

When it is 5 minutes before the time expires, the remaining time will start to keep appearing every minute.

Select "Off" by pressing SLEEP to cancel the sleep timer.

The TV will enter standby when the remaining time reaches 0.

FLASHBACK

Press FLASHBACK to switch to the previously tuned channel.

Press FLASHBACK again to switch back to the currently tuned channel.

FLASHBACK will not work if no channel has been changed after the TV is turned on.

2 – 2

LC-40D68UT

AV MODE

AV MODE gives you several viewing options to choose from to best match the surrounding environment of the

TV, which can vary due to factors like room brightness, type of program watched or the type of image input from external equipment.

Press AV MODE. Current AV MODE displays.

Press AV MODE again before the mode displayed on the screen disappears. The mode changes as shown below:

Example:

When the input source is TV, INPUT 1, 2 or 3 terminals

STANDARD MOVIE GAME USER [TV]

DYNAMIC DYNAMIC (Fixed)

Example:

When the input source is INPUT 4, 5, 6 or 7 terminals

STANDARD MOVIE GAME PC

DYNAMIC DYNAMIC (Fixed) USER[ ]

STANDARD: For a highly defined image in a normal lighting.

MOVIE: For a movie.

GAME: Lowers image brightness for easier viewing.

PC: For PC.

USER: Allows the user to customize settings as desired.

You can set the mode for each input source.

DYNAMIC (Fixed): Changes the image and sound settings to the factory preset values. No adjustments are allowed.

DYNAMIC: For a clear-cut image emphasizing high contrast, useful for sports viewing.

You can select a different AV MODE item for each input mode. (For example, select STANDARD for TV input and

DYNAMIC for INPUT 1.)

When you play games, "GAME" is recommended for AV

MODE.

PC

Allows you to gain quick access to PC mode.

Press PC.

Operating On-Screen Display Menu

You can operate the on-screen display menu by using the following buttons.

MENU: Displays the menu screen.

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

RETURN: Returns to the previous menu screen.

EXIT: Turns off the menu screen.

For operating the on-screen display menu, see “Menu

Operation Buttons”.

AUDIO

MTS/SAP stereo mode

The TV has a feature that allows reception of sound other than the main audio for the program. This feature is called Multi-channel Television Sound (MTS). The TV with MTS can receive mono sound, stereo sound and Secondary Audio Programs (SAP). The SAP feature allows a TV station to broadcast other information, which could be audio in another language or something completely different like weather information.

You can enjoy Hi-Fi stereo sound or SAP broadcasts where available.

Stereo broadcasts: View programs like live sporting events, shows and concerts in dynamic stereo sound.

SAP broadcasts: Receive TV broadcasts in either MAIN or

SAP sound. MAIN sound: The normal program soundtrack

(either in mono or stereo). SAP sound: Listen to a second language, supplementary commentary or other information.

(SAP is mono sound.)

If stereo sound is difficult to hear.

Obtain a clearer sound by manually switching to fixed mono-sound mode.

You can change MTS as shown below to match the television broadcast signal.

Press AUDIO to toggle between audio modes.

Examples: when receiving MTS and SAP

STEREO mode: STEREO MONO

STEREO + SAP mode: ST (SAP) SAP (ST) MONO

MAIN + SAP mode: MAIN

MONO mode: MONO

SAP

Digital broadcasting audio mode

The types of audio transmitted in a digital broadcast include

SURROUND as well as MONO and STEREO. In addition, it is possible for multiple audio tracks to accompany a single video track.

Press AUDIO to toggle between audio modes.

Example: when receiving Digital broadcasting

Audio 1: STEREO Audio 2: STEREO

Audio 3: SURROUND

MTS only operates while in TV mode.

FREEZE

Allows you to capture and freeze a moving image that you are watching.

Press FREEZE.

A moving image is captured.

Press FREEZE again to cancel the function.

When this function is not available, "No displaying still image available." will display.

The still image automatically goes out after 30 minutes.

If you are using the freeze function and a broadcast activates the V-CHIP BLOCK, the freeze function will be canceled and a V-CHIP BLOCK message will appear.

2 – 3

LC-40D68UT

INPUT

To view external source images, select the input source by pressing INPUT on the remote control unit or on the TV.

1 Press INPUT.

A list of selectable sources appears.

2 Press INPUT again or press / to select the input source.

Each time INPUT is pressed, the input source toggles.

INPUT 1 INPUT 2 INPUT 3

TV INPUT 4

An image from the selected source automatically displays.

If the corresponding input is not plugged in, you cannot change the input. Be sure to connect the equipment beforehand.

External equipment connection.

Press PC to switch to an image from the PC.

DISPLAY

Displays channel information being viewed.

Press DISPLAY.

Closed Captions and Digital Closed Captions

Your TV is equipped with an internal Closed Caption decoder. It allows you to view conversations, narration and sound effects as subtitles on your TV. Closed

Captions are available on some TV programs and on some VHS home video tapes at the discretion of the program provider.

Digital Closed Caption service is a new caption service available only on digital TV programs (also at the discretion of the service provider). It is a more flexible system than the original Closed Caption system, because it allows for a variety of caption sizes and font styles. When the Digital Closed Caption service is in use, it will be indicated by the appearance of DTVCC.

Not all programs and VHS videotapes offer closed captions. Please look for the “ ” symbol to ensure that captions will be shown.

In the Closed Caption system, there can be more than one caption service provided. Each is identified by its own number. The “CC1” and “CC2” services display subtitles of TV programs superimposed over the program's picture.

In the Closed Caption system, the “T1 (TEXT1)” or “T2

(TEXT2)” services display text that is unrelated to the program being viewed (e.g., weather or news). These services are also superimposed over the program currently being viewed.

1 Press CC.

This will present the Closed Caption information display.

2 Press CC while the Closed Caption information is still on the screen.

Press repeatedly until you select the desired closed caption service.

Air DIGITAL

22.1

Audio1 :

Video :

CC :

Ratings ::

MONO

1080i (16:9)

2/5 CC1

NONE

Closed Caption information

Regardless of whether or not an analog broadcast provides Closed Caption service, the closed caption display will toggle in the sequence: CC1, CC2, T1, and

T2.

When a digital broadcast provides Closed Caption service, the closed caption display will toggle in the sequence: DTVCC (actual service), CC1, CC2, T1, and

T2. CC1, CC2, T1, and T2 are always displayed.

Example:

If a program has three services (DTVCC, CC1 and T1

(TEXT1)), the closed caption display will toggle in this sequence:

1/5 DTVCC1 2/5 CC1 3/5 CC2 4/5 T1 5/5 T2 OFF

The CC button keeps a record of the last service selected in its memory.

If the last closed caption mode (e.g. 1/5 DTVCC) you selected is not available for the next program, or on another channel, the closed caption service that is available is automatically selected.

Examples:

In a case where there are two closed caption services provided (for instance, DTVCC and CC1), and DTVCC is displayed as your current selection, if DTVCC is not broadcast for the next program, the other closed caption service, CC1, will be displayed.

When “Power Saving” is set to “Standard” or “Advanced”, the Power Saving leaf icon appears on the channel information window. Details of Power Saving settings.

Detailed closed caption settings.

When the program contains no closed caption, “--” displays in the closed caption information. (Only when receiving a digital broadcast.)

Four kinds of closed caption service (CC1, CC2, T1 (TEXT1),

T2 (TEXT2)) are potentially available, but a broadcast may contain none or only some of these services at the discretion of the program provider.

2 – 4

LC-40D68UT

VIEW MODE

You can select the screen size.

1 Press VIEW MODE.

The View Mode menu displays.

The menu lists the View Mode options selectable for the type of video signal currently being received.

2 Press VIEW MODE or / while the View Mode menu is displayed to select a desired item on the menu.

You can sequentially select a View Mode that has its own aspect ratio.

For 4:3 programs

Example: Screen size images

Side Bar S.Stretch (Smart stretch) Zoom Stretch

Suitable for viewing conventional 4:3 programs in their normal format.

Suitable for stretching 4:3 programs to fill the screen.

Suitable for viewing widescreen 2.35:1 anamorphic

DVDs in full screen.

This mode is useful for 1.78:1

DVDs. When viewing 1.85:1

DVDs, stretch mode will still show very thin black bands at the top and bottom of the screen.

For HD programs

Stretch: Suitable for viewing wide-screen 1.78:1 aspect ratio program, stretch mode will still show very thin black bands at the top and bottom of the screen.

Dot by Dot (1080i/p only): Detects the resolution of the signal and displays an image with the same number of pixels on the screen.

Full Screen (720p only): You can select "Full Screen" only when receiving a 720p signal.

S.Stretch (Smart stretch): Suitable for stretching 4:3 programs to fill the screen.

Zoom: Suitable for viewing wide-screen 2.35:1 aspect-ratio programs in full screen.

When using Dot by Dot or Full Screen, it is possible to see noise or bars around different outer portions of the screen. Please change view mode to correct this.

For PC input mode

Connect the PC before making adjustments.

Selectable screen size may vary with input signal type.

Example: Screen size images

Input signal Normal Zoom Stretch Dot by Dot

4:3

Input signal

Keeps the original aspect ratio in a full screen display.

Stretch

For viewing widescreen programs. The top and bottom of the image is cropped.

Dot by Dot

An image fully fills the screen.

Detects the resolution of the signal and displays an image with the same number of pixels on the screen.

16:9 An image fully fills the screen.

Detects the resolution of the signal and displays an image with the same number of pixels on the screen.

2 – 5

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QUICK REFERENCE

Attaching/Detaching the Stand

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

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

CAUTION

Attach the stand in the correct direction.

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

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

1 Confirm that there are 12 screws (all the same size) supplied with the stand unit.

2 1 Set the post for the stand unit onto the box.

2

3

Attach the base to the post.

Insert and tighten the 8 screws into the 8 holes on the bottom of the base.

Hold the stand unit securely with one hand, and then tighte n the screws.

Screws

Setting the TV on the Wall

CAUTION

This TV should be mounted on the wall with both the AN-37AG2 (SHARP) wall mount bracket and the

AN-37P30 (SHARP) attachment of the wall mount bracket. The TV cannot be mounted when with only the AN-37AG2 wall mount bracket. The use of other wall mount brackets may result in an unstable installation and may cause serious injuries.

Installing the TV requires special skill that should only be performed by qualified service personnel.

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

Using an optional bracket to mount the TV

You can ask a qualified service professional about using an optional AN-37AG2 + AN-37P30 bracket to mount the TV to the wall.

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

Hanging on the wall

AN-37AG2 + AN-37P30 wall mount bracket.

(See the bracket instructions for details.)

3

3

2

1

1

FRONT

3 1 Insert the stand into the openings on the bottom of the TV.

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

Vertical mounting Angular mounting

About setting the TV angle

0/5/10/15/20° • The center of the display:

5 /

16 inch (7.9 mm) under the

“A” position.

• Refer to the operation manual of 37AG2/AN-37P30 for details.

2 Screws

Soft cushion

2

1

1

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

2 – 6

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

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

To use this TV mounted on a wall, remove the covers 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.

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Appendix

Troubleshooting

• No power

Problem

• 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.

• No sound

Possible Solution

• Check if you pressed 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-fluences 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.

• 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 "RC Control Lock" selected in "Operation Lock Out"?

• 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.

• Is the sleep timer set?

• Check the power control settings.

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

• Is connection to other components correct?

• Is the volume too low?

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

• Have you pressed MUTE on the remote control unit?

• Check the audio output of the connected external equipment. Is the volume too low or muted?

• When external equipment is connected via an HDMI cable, you may need to configure the audio to be output through the HDMI cable.

• When audio is not output from external equipment connected to the INPUT 4 or

INPUT 6 terminal, check the "PC Audio Select" setting.

• Even when external equipment is connected using an HDMI-certified cable, an audio cable connection may be required depending on the type of equipment and the media being played back. In this case, in addition to connecting an HDMI-certified cable to the INPUT 6 (HDMI) terminal, connect a ø 3.5 mm stereo minijack cable to the AUDIO terminal and set "PC Audio Select" to "INPUT6 (HDMI)".

• When connecting a PC via an HDMI-certified cable, check the following:

- Is the audio output of the PC configured correctly? Check the audio output settings and output audio format in Sound Properties on the PC.

Only PCM format audio can be output. Compressed audio (with a sampling rate of

32kHz, 44.1kHz, or 48kHz) and DTS format audio cannot be output.

- Depending on the board, only video signals may be output. In this case, in addition to connecting an HDMI-certified cable to the INPUT 6 (HDMI) terminal, connect a

ø 3.5 mm stereo minijack cable to the AUDIO terminal and set "PC Audio Select" to "INPUT6 (HDMI)".

• If you are using a DVI-HDMI conversion cable to connect external equipment to the

TV, check the following:

- Is an audio cable connected? The DVI-HDMI conversion cable is for video only.

Connect a ø 3.5 mm stereo minijack cable to listen to the audio.

- Is INPUT 6 being used? When the TV is connected to another HDMI terminal, the audio and video are not output together even if a ø 3.5 mm stereo minijack cable is connected to the shared AUDIO terminal for INPUT 4 and INPUT 6.

- Is "INPUT4 (PC)" selected in "PC Audio Select"?

2 – 7

LC-40D68UT

Appendix

• No picture

Problem Possible Solution

• Is connection to other components correct?

• Is correct input signal source selected after connection?

• Is the correct input selected?

• Is “On” selected in “Audio Only”?

• If the PC image is not displayed, check the following:

- When connecting a laptop PC to the TV, check that display output mode of the

PC is set to external monitor.

- Check the resolution setting on the PC. Is a non-compatible signal being input?

• Picture quality of HD programs is poor.

• To enjoy HD images from external equipment, you are required to set up HDMI connection or component connection.

• If the program content is not of HD quality, HD images cannot be displayed. Check that the program you are viewing provides HD images.

• The HD cable/satellite set-top box may need to be configured to output HD images via cable/satellite.

• The cable/satellite broadcast may not support a signal resolution of 1080p.

• The TV sometimes makes a cracking sound.

• 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 - Error Message

The example of an error message displayed on a screen

• Failed to receive broadcast.

• No broadcast now.

Possible Solution

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

• Check the broadcast time in the program guide.

Cautions regarding use in high and low temperature environments

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

This is not a malfunction, and the unit will recover when the temperature returns to normal.

• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction.

Storage temperature: -4°F to +140°F (-20°C to +60°C)

2 – 8

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

18 1 /

2

(470)

38 7 /

8

(987)

34 61 /

64

(887.8)

Service Manual

LC-40D68UT

Unit: inch (mm)

4 1 /

4

(108)

3 35 /

64

(90)

12 3 /

8

(314)

11 13 /

16

(300)

3 – 1

3

(76)

7 1 /

4

(184)

4 1 /

4

(108)

AN-37P30

LC-40D68UT

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

1. Removing of Stand Unit and Rear Cabinet.

1. Remove the 4 lock screws and detach the Stand Unit .

2. Detach the 4 pieces VESA Hole Cover .

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

4

5

3

6 Rear Cabinet

1

2

Stand Unit

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2. Removing of Speaker-L/R, KEY Unit Ass’y, Bottom Cover and R/C, LED Unit.

1. Disconnect SP wire and detach the Speaker-L /Speaker-R .

2. Detach the KEY Button Cover Ass’y.

3. Detach the KEY Unit from KEY Button Cover and disconnect KM wire.

4. Detach the Bottom Cover .

5. Detach the R/C, LED Unit and disconnect RA wire.

Speaker-R

2

KEY Button

Cover Ass'y

KEY Button

Cover

3

KM

SP

RA

KM

4

KEY Unit

SP

RA

6

R/C, LED Unit

SP

5

Bottom Cover

1

Speaker-L

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LC-40D68UT

3. Removing of Connectors.

1. Disconnect the following connectors from MAIN Unit. (PD, LW)

2. Disconnect the following connectors from POWER Unit. (PD, LB2)

3. Disconnect the following connectors from LCD CONTROL Unit. (LW)

4. Disconnect the following connectors from INVERTER Unit. (LB2)

INVERTER Unit LCD CONTROL Unit

TERMINAL Unit

LW

LB2

LB2 PD

PD LW

POWER Unit MAIN Unit

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LC-40D68UT

4. Removing of 40” LCD Panel Module Unit, TERMINAL Unit, MAIN Unit and POWER Unit.

1. Remove the 2 lock screws , 6 hooks and detach the 40” LCD Panel Module Unit .

2. Remove the 8 lock screws and detach the TERMINAL Unit /MAIN Unit .

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

7

4

POWER Unit

8

5

TERMINAL Unit

1

6

MAIN Unit

2 2

2 2

40" LCD Panel

Module Unit

3

2 2

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5. Removing of MAIN PWB Angle-L/W, POWER PWB Angle, VESA Angle, Center Angle and Panel Angle-L/R.

1. Remove the 2 lock screws , 3 lock screws and detach the MAIN PWB Angle-L .

2. Remove the 2 lock screws and detach the MAIN PWB Angle-W .

3. Remove the 4 lock screws and detach the 2 pieces POWER PWB Angle .

4. Remove the 4 lock screws and detach the 4 pieces VESA Angle .

5. Remove the 6 lock screws and detach the 2 pieces Center Angle .

6. Remove the 1 lock screw and detach the Panel Angle-L .

7. Remove the 1 lock screw and detach the Panel Angle-R .

VESA Angle

8

9

VESA Angle

8

9

10

Center Angle

11

7

6 6

Center Angle

11

10

9 VESA Angle

8

2

7 POWER PWB Angle

6 6

POWER PWB Angle

VESA

Angle

9

8

1

3 MAIN PWB

Angle-L

4

5 MAIN PWB

Angle-W

Panel Angle-L 13

12

4 – 5

14

15 Panel Angle-R

LC-40D68UT

CHAPTER 5. ADJUSTMENT

Service Manual

[1] ADJUSTMENT PROCEDURE

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

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

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

MAIN Unit: DUNTKF463FM02

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 can be upgraded by using a general-purpose USB Memory.

The monitor microprocessor software can be upgraded with E8 Emulator Debugger.

The followings are the procedures for upgrading, explained separately for the main software, 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 BFN_M_xxxAx.bin 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 of Main Board terminals, under INPUT3 terminal.

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

5 – 1

LC-40D68UT

4. After the unit startup, the system upgrade screen as shown below appears within 10-40 seconds.

D68UT

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

Failed to complete update.

Retry Software Update.

If system update fails again, contact the customer service center.

D68UT

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.

D68UT

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.

5 – 2

2.3. Monitor microprocessor software version upgrade

1) Download “E8 Emulator” from Renesas Web site and install it.

http://america.renesas.com/sensitivity.do? downloadId=C2003512

Product Name: E8 Emulator Software V.2.11 Release 01 for M16C, H8 Upgrade (Debugger package version) Oct.24.08

2) Connect E8 Emulator Debugger to PC from USB port. (Driver of “E8 Emulator Debugger” found in CD-ROM.)

3) Connect E8 writer to LCD’s 20PIN port.

4) Run “High Performance Embedded Workshop” in start menu.

5) Confirm the screen below comes up and click “OK”.

LC-40D68UT

If second time, you can select “open a recent project work”.

Choose “OK”.

5 – 3

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6) In the next page input information as specified below and click “OK”.

Select “Debugger only - R8C E8 SYSTEM”

Specify workspace name; any name is OK.

Select “M16C” (initial value)

7) Select entry as below and click “

* “ (N)” means “NEXT”

(N)”

Select “R8C E8 SYSTEM”

5 – 4

8) click .

9) Click “OK”.

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5 – 5

LC-40D68UT

10)Select entries as specified below and click “OK”.

Select “R8C/2A Group”

Select “R5F212A8”

11)Click “

* “

(N)”.

” means “NEXT”.

5 – 6

12)Click .

* means “COMPLETE”.

13)In the screen below, click “Debug Settings”.

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5 – 7

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14)Select “S-Record” and click “Add”.

15)Click “Browse” and specify the location of mot-file.

Select “S-Record”

5 – 8

5 – 9

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16)Confirm the file name of mot-file appears in the dialog entry and click “OK”.

17)From main menu, continuously click “Debug”, “Download Modules” and the mot-file location, then writing process starts.

5 – 10

18)Confirm the dialog-box below appears. It means the writing process completed successfully

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Then shut down “High Performance Embedded Workshop”, unplug 20PIN connector, and E8 firmware updating finish.

5 – 11

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

4. Remote controller key operation in adjustment process mode

Basic operation

Selecting the receiving channels

* Using the CH ( )/( ) keys, turn up and down an actual receiving channel.

Snap press: The channels are turned up and down one by one.

Continuous press: The next receivable channel is searched.

* Various adjustments: The items are adjusted one by one by selecting on the menu screen and using the cursor key and VOL (+) (–) keys.

* With the CURSOR UP/DOWN keys, select an adjustment item.

* Using the MENU key, the adjustment items are selected one after another. When the bottom item on a page is already selected and the MENU key is pressed, the top item on the next page is selected.

* If any item on a page is selected and the preset key is pressed, the top item on the next page is selected.

Page1 - Page2 - Page3 - Page7 - Page9 - Page10 ...

* If any item on a page is selected and the manual memory key is pressed, the top item on the same page is selected.

* Using the CURSOR LEFT/RIGHT keys and VOL (+) (–) keys, turn up and down the setting of a selected item.

Hierarchical shift

* When the ENTER key is pressed on any item other than I2C DATA on page 2, the setting page of the item shows up.

* To quit the setting page, press the front screen key.

5 – 12

LC-40D68UT

5. List of adjustment process mode menu

Top hierarchical menu item

Page

1

Item

MODEL

INCH SIZE

INDUSTRY INIT

ERROR NO RESET

PUBLIC MODE

V-CHIP

CANADIAN VCHIP

EXT CONTROL

TEMPERATURE

Description

Number of termination due to lamp error and Reset

Public mode

Monitor software version

Main software version

2

SYSCON VER ROM

C5 VER ROM

BOOT VER ROM

I2C DATA

I2C DATA

SOUND

TUNER

DVP

DVP-M2

OTHERS

HOTEL POWERFIX

The second hierarchical menu item

SOUND

Page

SOUND1

SOUND2

SOUND3

PEQ1 GAIN

PEQ2 GAIN

PEQ3 GAIN

PEQ4 GAIN

PEQ5 GAIN

PEQ6 GAIN

PEQ7 GAIN

PEQ1 Fc

PEQ2 Fc

PEQ3 Fc

PEQ4 Fc

PEQ5 Fc

PEQ6 Fc

PEQ7 Fc

PEQ1 Q

PEQ2 Q

PEQ3 Q

PEQ4 Q

PEQ5 Q

PEQ6 Q

PEQ7 Q

Item

Audio Switch

Output Trim

Flat Mode

Sound Delay Lipsync

PRESCALE FM/AM-M

PRESCALE DTV

PRESCALE HDMI

PRESCALE PC

PRESCALE AV

PRESCALE BD

Description

Remarks (adjustment detail, etc.)

Refer to SOUND

Refer to TUNER

Refer to DVP

Refer to DVP-M2

Refer to OTHERS


5 – 13

LC-40D68UT

SOUND

Page

SOUND4

SOUND5

Item

Sub Sonic Filter

Sub Sonic Filter Fc

Virtual Surround

Band LPF Fc

Band HPF Fc

AGC Switch

AGC Mode

AGC Gain Max

AGC Gain Min

AGC Threshold

AGC Attack Time

AGC Release Time

Harmonic Switch

Harmonic Mode

Harmonic Gain

Harmonic LPF

Harmonic HPF

DRC Switch

DRC Threshold LPF

DRC Threshold HPF

DRC Ratio

DRC Attack Time

DRC Release Time

DRC LPF Fc

DRC HPF Fc

TUNER

Page

TUNER1

TUNER2

Item

TUNER SWITCH

AFT UP

AFT DOWN

LSYNC

HSYNC

LSYNC2

HSYNC2

SYNCSEP_HC

SYNCSEP_HLC

SYNCSEP_HMC

SEP_SLV

AFT 1STEPTIME

DVP

Page

DVP1

DVP2-1 IN 1

IN 2

IN 3

IN 4

IN 5

IN 6

TAMP1 L

YDATA

TAMP1 H

TAMP ALL

NTSC TAMP1

PAL-M TAMP

PAL-N TAMP

Item

Description

Description

Description

TUNER signal level adjustment

Standard value 1

Standard value 2

Standard value 3

Standard value 4

Standard value 5

Standard value 6




Adjustment gradation setting.

5 – 14

DVP

Page

DVP2-2

Item

R2

G2

B2

R1

B4

R3

G3

B3

G5

B5

R4

G4

R6

G6

B6

R5

G1

B1

ADJ SETTING OK

DVP3 (M2-HD) AUTO GAIN-OFFSET ALL

AUTO GAIN-OFFSET

AD R GAIN

AD G GAIN

AD B GAIN

RGTAR GGTAR BGTAR

RGCAL GGCAL BGCAL

RHPOS GHPOS BHPOS

RVPOS GVPOS BVPOS

DVP4 (M2-SD) AUTO GAIN-OFFSET

AD R GAIN

AD G GAIN

AD B GAIN

RGTAR GGTAR BGTAR

RGCAL GGCAL BGCAL

RHPOS GHPOS BHPOS

RVPOS GVPOS BVPOS

DVP5 (M2-PC) AUTO GAIN-OFFSET

AD R GAIN

AD G GAIN

AD B GAIN

RGTAR GGTAR BGTAR

RGCAL GGCAL BGCAL

RHPOS GHPOS BHPOS

RVPOS GVPOS BVPOS

DVP-M2

Page

DVP-M2 1

DVP-M2 2

Item

DVP TEST PATTERN

ENDPOINT

STARTPOINT

PQ SWITCH

STD COLOR OFFSET

STD TINT OFFSET

ETC COLOR OFFSET

ETC TINT OFFSET

N358 TV CONT

N358 TV BRIGHT

N358 TV COLOR

N358 TV TINT

N358 TV SHARP V1 OVER

N358 TV SHARP V1 UNDER

N358 TV SHARP V2 OVER

N358 TV SHARP V2 UNDER

N358 TV SHARP H1 OVER

N358 TV SHARP H1 UNDER





Description

WB adjustment Point 6, R adjustment value

WB adjustment Point 6, G adjustment value

WB adjustment Point 6, B adjustment value
















Component 33K picture level adjustment

Component 15K picture level adjustment

Analog RGB picture level adjustment

Description

5 – 15

LC-40D68UT


Parameter for six-point adjustment

1: OK


LC-40D68UT

DVP-M2

Page

DVP-M2 3

DVP-M2 4

DVP-M2 5

DVP-M2 6

Item

N358 AV CONT

N358 AV BRIGHT

N358 AV COLOR

N358 AV TINT

N358 AV SHARP V1 OVER

N358 AV SHARP V1 UNDER

N358 AV SHARP V2 OVER

N358 AV SHARP V2 UNDER

N358 AV SHARP H1 OVER

N358 AV SHARP H1 UNDER





525I CONT

525I BRIGHT

525I COLOR

525I TINT

525I SHARP V1 OVER

525I SHARP V1 UNDER

525I SHARP V2 OVER

525I SHARP V2 UNDER

525I SHARP H1 OVER

525I SHARP H1 UNDER

525I SHARP H2 OVER

525I SHARP H2 UNDER

525I SHARP H3 OVER

525I SHARP H3 UNDER

525P CONT

525P BRIGHT

525P COLOR

525P TINT

525P SHARP V1 OVER

525P SHARP V1 UNDER

525P SHARP V2 OVER

525P SHARP V2 UNDER

525P SHARP H1 OVER

525P SHARP H1 UNDER

525P SHARP H2 OVER

525P SHARP H2 UNDER

525P SHARP H3 OVER

525P SHARP H3 UNDER

1125I CONT

1125I BRIGHT

1125I COLOR

1125I TINT

1125I SHARP V1 OVER

1125I SHARP V1 UNDER

1125I SHARP V2 OVER

1125I SHARP V2 UNDER

1125I SHARP H1 OVER

1125I SHARP H1 UNDER

1125I SHARP H2 OVER


1125I SHARP H3 OVER


Description Remarks (adjustment detail, etc.)

5 – 16

DVP-M2

Page

DVP-M2 7

DVP-M2 8

DVP-M2 9

DVP-M2 10

Item

750P CONT

750P BRIGHT

750P COLOR

750P TINT

750P SHARP V1 OVER

750P SHARP V1 UNDER

750P SHARP V2 OVER

750P SHARP V2 UNDER

750P SHARP H1 OVER

750P SHARP H1 UNDER

750P SHARP H2 OVER

750P SHARP H2 UNDER

750P SHARP H3 OVER

750P SHARP H3 UNDER

1125P CONT

1125P BRIGHT

1125P COLOR

1125P TINT

1125P SHARP V1 OVER

1125P SHARP V1 UNDER

1125P SHARP V2 OVER

1125P SHARP V2 UNDER

1125P SHARP H1 OVER

1125P SHARP H1 UNDER

1125P SHARP H2 OVER


1125P SHARP H3 OVER


DTV 525I CONT

DTV 525I BRIGHT

DTV 525I COLOR

DTV 525I TINT

DTV 525I SHARP V1 OVER

DTV 525I SHARP V1 UNDER



DTV 525I SHARP H1 OVER

DTV 525I SHARP H1 UNDER





DTV 525P CONT

DTV 525P BRIGHT

DTV 525P COLOR

DTV 525P TINT

DTV 525P SHARP V1 OVER

DTV 525P SHARP V1 UNDER



DTV 525P SHARP H1 OVER

DTV 525P SHARP H1 UNDER





Description

LC-40D68UT


5 – 17

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DVP-M2

Page

DVP-M2 11

DVP-M2 12

DVP-M2 13

DVP-M2 14

Item

DTV 1125I CONT

DTV 1125I BRIGHT

DTV 1125I COLOR

DTV 1125I TINT











DTV 750P CONT

DTV 750P BRIGHT

DTV 750P COLOR

DTV 750P TINT











DTV 525I CONT

DTV 525I BRIGHT

DTV 525I COLOR

DTV 525I TINT











HDMI 525P CONT

HDMI 525P BRIGHT

HDMI 525P COLOR

HDMI 525P TINT

HDMI 525P SHARP V1 OVER

HDMI 525P SHARP V1 UNDER



HDMI 525P SHARP H1 OVER

HDMI 525P SHARP H1 UNDER






5 – 18

DVP-M2

Page

DVP-M2 15

DVP-M2 16

DVP-M2 18

DVP-M2 19

Item

HDMI 1125I CONT

HDMI 1125I BRIGHT

HDMI 1125I COLOR

HDMI 1125I TINT

HDMI 1125I SHARP V1 OVER

HDMI 1125I SHARP V1 UNDER

HDMI 1125I SHARP V2 OVER

HDMI 1125I SHARP V2 UNDER

HDMI 1125I SHARP H1 OVER

HDMI 1125I SHARP H1 UNDER





HDMI 750P CONT

HDMI 750P BRIGHT

HDMI 750P COLOR

HDMI 750P TINT











HDMI 1125P CONT

HDMI 1125P BRIGHT

HDMI 1125P COLOR

HDMI 1125P TINT











HDMI PC CONT

HDMI PC BRIGHT

HDMI PC COLOR

HDMI PC TINT

HDMI PC SHARP V1 OVER

HDMI PC SHARP V1 UNDER

HDMI PC SHARP V2 OVER

HDMI PC SHARP V2 UNDER

HDMI PC SHARP H1 OVER

HDMI PC SHARP H1 UNDER





Description

LC-40D68UT


5 – 19

LC-40D68UT

DVP-M2

Page

DVP-M2 20

DVP-M2 21

DVP-M2 22

DVP-M2 23 HUE R

HUE Y

HUE G

HUE C

HUE B

HUE M

HUE R-Y

HUE Y-G

HUE G-C

HUE C-B

HUE B-M

HUE M-R

Item

HDMI PC (Dot) CONT

HDMI PC (Dot) BRIGHT

HDMI PC (Dot) COLOR

HDMI PC (Dot) TINT

HDMI PC (Dot) SHARP V1 OVER

HDMI PC (Dot) SHARP V1

UNDER

HDMI PC (Dot) SHARP V2 OVER

HDMI PC (Dot) SHARP V2

UNDER

HDMI PC (Dot) SHARP H1 OVER

HDMI PC (Dot) SHARP H1

UNDER



UNDER



UNDER

PC CONT

PC BRIGHT

PC COLOR

PC TINT

PC SHARP V1 OVER

PC SHARP V1 UNDER

PC SHARP V2 OVER

PC SHARP V2 UNDER

PC SHARP H1 OVER

PC SHARP H1 UNDER

PC SHARP H2 OVER

PC SHARP H2 UNDER

PC SHARP H3 OVER

PC SHARP H3 UNDER

PC (Dot) CONT

PC (Dot) BRIGHT

PC (Dot) COLOR

PC (Dot) TINT

PC (Dot) SHARP V1 OVER

PC (Dot) SHARP V1 UNDER

PC (Dot) SHARP V2 OVER

PC (Dot) SHARP V2 UNDER

PC (Dot) SHARP H1 OVER

PC (Dot) SHARP H1 UNDER






5 – 20

DVP-M2

Page

DVP-M2 24

DVP-M2 25

DVP-M2 27

DVP M2 28

Item

SAT R

SAT Y

SAT G

SAT C

SAT B

SAT M

SAT R-Y

SAT Y-G

SAT G-C

SAT C-B

SAT B-M

SAT M-R

BRI R

BRI Y

BRI G

BRI C

BRI B

BRI M

BRI R-Y

BRI Y-G

BRI G-C

BRI C-B

BRI B-M

BRI M-R

AV BLACK STRETCH

PC BLACK STRETCH

COLOR TEMP High R

COLOR TEMP High G

COLOR TEMP High B

COLOR TEMP Mid-High R

COLOR TEMP Mid-High G

COLOR TEMP Mid-High B

COLOR TEMP Middle R

COLOR TEMP Middle G

COLOR TEMP Middle B

COLOR TEMP Mid-Low R

COLOR TEMP Mid-Low G

COLOR TEMP Mid-Low B

COLOR TEMP Low R

COLOR TEMP Low G

COLOR TEMP Low B

OTHERS

Page

OTHERS1

OTHERS2

OTHERS3

Item

L ERROR WAIT

L ERROR H TIME

PWM FREQ

PWM DUTY

OPC THRESHOLD

VCOM ADJ

RS232C SWITCH

LCD TEST PATTERN

INSPECT USB TERM

TUNER VCHIP TEST (69ch)




MONITOR MAX TEMP

DDR CHECK

BA [1:0]

ADDR [13:0]

DQ [15:0]

FRC ON/OFF

CENTER CROSS

Description

Description

VCOM adjustment value

Tuning test and VCHIP test (69ch)

Tuning test and VCHIP test (7ch)



5 – 21

LC-40D68UT



LC-40D68UT

6. Video signal adjustment procedure

6.1. AD TRANSFORM LEVEL Adjustment

6.1.1 Input 1080i signal

1. Input 1080i color bar signal.

Signal generation: LEADER LT448

Signal: color BAR.

Setting: 02: 1080i/59.94 (30sf)

H: 33.72 KHz V: 29.97Hz

NOTE: Please use the third color Bar of LT448 generator.

2. Adjusting AUTO GAIN-OFFSET in page 4 of DVP3 (M2-HD) to RUN.

When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete.

6.1.2 Input 480i signal

1. Input 480i color bar signal.

Signal: color BAR.

Setting: 15: 480i/60

H: 15.73 KHz V: 29.97Hz

NOTE: Please use the third color Bar of LT448 generator.

2. Adjusting AUTO GAIN-OFFSET in page 5 of DVP4 (M2-SD) to RUN.

When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete

6.1.3 Input PC XGA signal.

1. Input XGA color bar signal (RGB)

Signal generation: LEADER LT448

Signal: color BAR (SATURATION 75%)

Setting: 28: XGA

H: 48.36KHz V: 60Hz

SYNC: OFF

NOTE: Please use the color Bar of SATURATION.

2. Adjusting AUTO GAIN-OFFSET in page 6 of DVP5 (M2-PC) to RUN.

When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete.

NOTE: If want to set all item to ON, please set to RUN in ADJUST PROCESS.

6.2. TEMP Adjustment

6.2.1 Receive US-10ch(JPN-8ch) the standard color bar signal

6.2.2 See if the “YDATA” reading (maximum) on Adjustment Process Page 1 is within the range in the follow table. If not, adjust the “TEMP ALL” setting on the same page to have the “YDATA” reading (maximum) within this range.

MODEL

SETTING VALUE (NTSC)

Refines

(Adjustment Process Menu Page 1)

4

5

2

3

6

7

0 1 2

0 D V P

1 T

3

1

4 5

A M P

6

1

Y D A

T A M

T

P

A

1

T A M P

N T S C

P A

P A

L

L

– M

– N

163-170

7

A

T

8

L

H

L

A

T

T

9

L

M

10

P

11

1

A M P

A M P

12 13 14 15 16 17 18 19 20 21

1

22

6

1

O F

7

9

7

6

6

23

3

F

7

8

0

4

4

24 25 26

5 – 22

LC-40D68UT

6.3. Tuner/V-Chip test

Adjustment item

1 Adjustment

2 Auto adjustment performance

Adjustment conditions

NTSC RF signal

US-7 (AIR) ch

Adjustment procedure

Feed the NTSC signal to RF ANTENNA input.

Bring the cursor on [OTHERS] →[OTERRS2]→[.TUNER VCHIP TEST (*07ch)] and press [LEFT]. (*Select the channel according to the RF signal.)

[.A-OK (***.**)/VM-OK] appears in blue when finished. (If [A-NG/VM-NG] appears in yellow or red, the test is incomplete.)

Make sure a displacement of ±0.0625 MHz from the center frequency is acceptable.

7. Adjustment of white balance

1

Adjustment item

Setting

Adjustment conditions

Backlight: +16 (MAX)

Active contrast: OFF

Monochrome: ON

2 Adjustment procedure

Adjustment procedure

For detailed adjustment procedure refer to “Kameyama Model Integral WB Adjustment

Specifications”.

1) Insert AC code in TV while pushing [INPUT] button and [VOL -] button (The buttons are located at right side of TV) and “K” mark is displayed.

2) Make the following setting for the TV.

AV MODE: Dynamic

Backlight: +16

Aging time: Min. 60 minutes

3) Push [CH ] button and [VOL -] button to enter the Adjustment Mode. (The buttons are located at right side of TV.)

4) Select [OTHERS] by R/C and push [ENTER] button of R/C.

5) Select [CENTER CROSS] and push [ENTER].

And the Cross is displayed. (It's center of the display.)

6) Set the CA210 probe at the center of display.

7) Push [Enter] button and the Cross is cleared.

1) On the Adjustment Mode, select the [DVP] and push [Enter] button of R/C.

2) Move to [DVP 2] and push [6] button of R/C.

3) With the strongest color being fixed, turn down the R, G and B settings to their reference levels.

* Initial R, G and B settings at the point 1: Gradation level set at 512.

[Adjustment value]

AS per the “standard set” submitted by Engineering Department.

[Adjustment reference] Instrument: [Minolta CA-210] Engineering instrument.

Point 1

Note

Level

512

Reference

X=0.272

Adj. spec y=0.277

±0.0015

Set conditions for inspection

AV MODE: [DYNAMIC] (Reset)

Aging Time: Min. 60 minutes

Ins. spec

±0.003

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LC-40D68UT

8. Initialization of factory settings

8.1. Making factory settings

Use the adjustment remote controller for the factory settings.

8.1.1 Press the ENTER key at the INDUSTRY INT on Adjustment Process Page1 which is selected “YES”.

8.1.2 Sever seconds later, “SETTING COMPLETE” “TV VER *.**” appears at the center of the screen.

If background of screen is green, the settings are complete.

SETTING COMPLETE

TV VER *.**

8.1.3 Power off the set.

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

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LC-40D68UT

[2] PUBLIC MODE SETTING PROCEDURE

1. How to start Public Mode

• There are the following two ways to get the public mode setup screen displayed.

In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ( )” and “VOL (+)” keys on the set at once and turn on the power.

1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.

2) Get the password input screen displayed.

Procedure

˴

The input starts with the leftmost digit.

˴

Use the numeric keys [1] thru [9] and [0] keys on the remote controller.

˴

The other keys are not acceptable.

˴ With a numeric-key input, "_" will change to "˴".

˴ The input position will move one digit to the right.

˴ With all the 3 digits entered, the password will be verified.

3) The 3-digit password is now verified.

The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.)

With any other passwords, the screen changes to the normal mode.

2. How to exit Public Mode

There are the following ways to quit the public mode setup screen.

• Turn off “PUBLIC MODE” in the adjustment process mode. ( ) ← This way alone is not for quitting the setup screen, but for quitting the mode itself.

• Turn off the power with the “POWER” key. ( )

• Select “ENTER”. ( )

... “PUBLIC MODE” stays on in the adjustment process mode.

... The settings will be back to the factory ones.

3. Public Mode Setting Values

• With the factory settings made, the public mode settings get initialized. (The adjustment process remains intact.)

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LC-40D68UT

4. Public Mode Menu

The guidance is not displayed on screen.

Setup procedure

• To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ( )/( )” key (remote controller and set).

• To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set).

• To save new settings, keep the cursor at “ENTER” and use “ENTER” key (remote controller and set).

PUBLIC MODE

POWER ON FIXED

MAXIMUM VOLUME

VOLUME FIXED

VOLUME FIXED LEVEL

RC BUTTON

PANEL BUTTON

MENU BUTTON

ON SCREEN DISPLAY

BLUE SCREEN

INPUT MODE START

INPUT MODE FIXED

RESET

ENTER

[

[VARIABLE ]

60 ]

[

[VARIABLE ]

20 ]

[RESPOND ]

[RESPOND ]

[RESPOND ]

[YES ]

[NO

[NORMAL ]

]

[VARIABLE ]

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LC-40D68UT

5. On Setting Items

* “EZ-SETUP” discussed below indicates “EZ-SETUP after the first power-on”.

1) POWER ON FIXED

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

2) MAXIMUM VOLUME

Selection between “Variable” and “Fixed” (loop provided)

– (Variable)

In “Fixed” setting, the power-off by the power key of the unit is invalidated and the image is kept being received.

The power can be turned off by stopping the power supply from AC.

Refer to the “Power-On Fixed” sheet.

None

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

3) VOLUME FIXED

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

Selection between “Variable”, “Fixed”. (loop provided)

Variable

Sound volume is fixed and made in variable.

• The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the setting is made impossible. (Basically, the menu is not displayed.)

• The following keys become invalid:

• Sound volume Up/Down (VOL +/–) [for both remote control and the unit]

• Mute (MUTE)

• In the item “VOLUME” of adjustment process, the sound volume can be set freely irrespective of this setting.

• As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority.

• Once the sound volume has been changed by adjustment process, it should be set back to the sound volume preset by sound volume fixing level when the adjustment process ends.

4) VOLUME FIXED LEVEL

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

5) R/C BUTTON

Selection

Default

Explanation

Limit in Setting

Exception

Adjustment from 0 to 60 (no loop)

60

Sound volume can not be adjusted higher than the preset value.

• When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not displayed.

• The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value.

None

• When the sound volume is set higher than the MAX setting by the adjusting process, the sound volume control operation is prohibited for turn-up and the sound volume should be turned down to MAX in this state.

Adjustment from 1 to 60 (no loop)

20

The sound volume to be fixed by “Volume fixed” is determined.

None

None

Setting is valid only when “Volume fixed” is selected for “fixed”.

Selection between “Respond”, “No Respond” and “Limited” (loop provided)

Respond

Making the remote controller settings.

• At the “No Respond” setting, the remote controller keys are disabled. Its power key (reception/standby key) is disabled too.

• At the “Limited” setting, some channel-related keys alone are operative. All the other remote controller keys (power, volume

+/-, channel / , light control (brightness sensor), broadcast select) are inoperative.

In “No respond” setting, all the keys (including the power key) are not accepted.

• Adjustment process, inspection process and hotel only keys are valid irrespective of setting.

• All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.

Remarks

5 – 27

LC-40D68UT

6) PANEL BUTTON

Selection

Default

Explanation

Limit in Setting

Exception

Selection between “Respond” and “No respond” (loop provided)

Respond

All the operations by keys (except the power key) of the unit can be invalidated.

• Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting.


Remarks

7) MENU BUTTON

Selection

Default

Explanation

Selection between “Respond” and “No respond” (loop provided)

Respond

In “No respond” setting, the menu operation by the menu key of the remote control and the menu key of the unit are invalidated.

Limit in Setting

Exception • Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting.


Remarks

8) ON SCREEN DISPLAY

Selection

Default

Explanation

Limit in Setting

Others

Exception

Remarks

Selection between “Yes”, “No” (loop provided)

Yes

• At the “No” setting, the following items are not displayed on screen: register, setting, adjustment menu, channel call and volume bar.

On the wide-screen models, an input selection is immediately made because the menu is not displayed.

• Keys falling under any of the following items become invalid.

Appearance of screen changes and the sound changes.

Personal functions which are hard to restore.

Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION

• Simple input switching is generated. Those which are restored soon after leaving as they are and may be requested for change by customer are not prohibited.

Brightness sensor (BACKLIGHT) and PIC. FLIP

• Such a caution which is displayed independently is displayed as it is.

Non-responding signal caution

• When CC has already been ON, CLOSED CAPTION is displayed.

9) BLUE SCREEN

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

Selection between “Yes”, “NO” (loop provide)

No

In “Yes” setting, when don’t receive any signal or on signal input, the screen is blue.

None

None

10)INPUT MODE START

Selection

Default

Explanation

About options

Selection between “Normal”, “TV (CH )”, “INPUT 1/2/3/4/5/6/7/8”.

Normal

In power-ON, the input source to be started or channel can be set.

(In standard mode, the operation follows the last memory.)

• All the input sources in the model are made selectable.

• In TV mode, the channel to be set follows the last memory and the content of the last memory is included in the notation by options. Ex.) TV (CH2), TV (CH4) etc.

• The display of channel setting menu and the channel setting operation are prohibited.

Limit in Setting

Exception

Remarks • In setting at “Normal”, the setting of “Input mode fixed” is changed to “Variable” and selection should be prohibited.

5 – 28

LC-40D68UT

11)INPUT MODE FIXED

Selection

Default

Explanation

Limit in Setting

Exception

Remarks

Selection between “Variable”, “Fixed”. (loop provided)

– (Variable)

The input mode is fixed at the input source or the channel set at the “Input mode start” in 10 and other input sources and channels can be made non-selectable.

• With the execution of hotel mode, the input source is forced to change to that set by “Input mode start” and the channel switching and input switching are prohibited thereafter.

• ON-timer's (Wake-up timer) channel items are not displayed or the operation is prohibited. (Basically, they are not displayed.)

• The following keys are invalidated.

CH / , direct tuning button, FLASHBACK, input

However, the keys (input switching and CH

None

/ keys) of the unit for menu operation remain valid.

• In the following case, setting is cancelled and mode is changed to “Variable”.

When the setting of “Input mode start” is set to “Normal”.

5 – 29

LC-40D68UT

CHAPTER 6. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE

No video (1)

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

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

NO

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


NO


NO

Does the INPUT-1 V1_PLUG detection function?

Check the line between pin (2) of input terminal (J509) and pin (L1) of IC8001 (CPU).

1) J509: pin (2)

2) SC501/SC601: pin (20)

3) IC8001: pin (L1)

YES

Is there the COMPOSITE signal input at pin (A12) of IC8001

(CPU)?

YES

(M1) of IC8001(CPU).

1) J501: pin (7)

2) SC501/SC601: pin (19)

3) IC8001: pin (M1)

NO

Does the INPUT-3 V3_PLUG detection function?

Check the line between pin (7) of input terminal (J501) and pin

Is there the COMPOSITE signal input at pin (A11) of IC8001 (CPU)?

NO

Check the line between pin (3) of J509 and pin (A12) of

IC8001.

1) J509: pin (3)

2) SC501/SC601: pin (12)

3) IC8001: pin (A12)

YES YES

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

IC8001?

LV0OUT0P/M (N19/N20), LV0OUT1P/M (N21/N22), LV0OUT2P/M (P19/P20),

LV0OUT3P/M (R19/R20), LV0OUT4P/M (R21/R22), LV0CK0P/M (P21/P22),

LV1OUT0P/M (J21/J22), LV1OUT1P/M (K19/K20), LV1OUT2P/M (K21/K22),

LV1OUT3P/M (L21/L22), LV1OUT4P/M (M21/M22), LV1CK0P/M (L19/L20)

NO

Check the line between pin (6) of J501 and pin (A11) of

IC8001.

1) J501: pin (6)

2) SC501/SC601: pin (10)

3) IC8001: pin (A11)

NO Check IC8001 and its peripheral circuits.

(IC8251, etc.)

YES

Check the panel module.

6 – 1

LC-40D68UT

No video (2)

COMPONENT: No external input video [INPUT-1] COMPONENT: No external input video [INPUT-2]


Is the INPUT-SELECT for the input signal?

NO



Is the INPUT-SELECT for the input signal?

NO


Does the INPUT-1 C1_PLUG detection function?

Check the line between pin (2) of input terminal (J503) and pin (J2) of IC8001 (CPU).

1) J503: pin (2)

2) SC501/SC601: pin (18)

3) IC8001: pin (J2)

YES

Are there the COMPONENT video signal inputs at pins (B13/B15)

(Y)/(A10) (Pb) and (A7) (Pr) of IC8001 (CPU)?

NO

Check the line between the input terminals of J508 and

IC8001.

1) J503 pin (3) (Y) pin (5) (Pb) pin (7) (Pr)

2) SC501/SC601 pin (6) (Y) pin (7) (Pb) pin (8) (Pr)

3) IC8001 pin (B13/B15) pin (A10) pin (A7)

YES YES


IC8001?





NO

Check the line between the input terminals of J504 and

IC8001.

1) J504 pin (3) (Y) pin (5) (Pb) pin (7) (Pr)

2) SC501/SC601 pin (2) (Y) pin (3) (Pb) pin (4) (Pr)

3) IC8001 pin (A13/A15) pin (A10) pin (A7)


(IC8251, etc.)

YES



Check the line between pin (2) of input terminal (J504) and pin

(K2) of IC8001 (CPU).

1) J504: pin (2)

2) SC501/SC601: pin (17)

3) IC8001: pin (K2)

YES

Are there the COMPONENT video signal inputs at pins (A13/A15) (Y)/

(B10) (Pb) and (B7) (Pr) of IC8001 (CPU)?

6 – 2

LC-40D68UT

No video (3)

PC: No external input video [INPUT-4]


NO Select INPUT-4 on the input select menu screen for the right input signal.

YES

Are there the video signal inputs at pins (B12) (G), (A9) (B) and

(A6) (R) of IC8001 (CPU)?

Are there the VSYNC/HSYNC signal inputs at pins (B16) and

(B17) of IC8001?

YES

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

LV0OUT0P/M (N19/N20), LV0OUT1P/M (N21/N22),

LV0OUT2P/M (P19/P20), LV0OUT3P/M (R19/R20),

LV0OUT4P/M (R21/R22), LV0CK0P/M (P21/P22),

LV1OUT0P/M (J21/J22), LV1OUT1P/M (K19/K20),

LV1OUT2P/M (K21/K22), LV1OUT3P/M (L21/L22),

LV1OUT4P/M (M21/M22), LV1CK0P/M (L19/L20)

YES


NO

Is IC602 (EEPROM) accessed by I2C, with PC connected, to read the DDC_I2C DSUB_SCL/DSUB_SDA data?

Check the DDC line and its peripheral circuits. (IC602 and its peripherals).

Check the line between SC601 and IC8001 (IC601, etc.).

NO Check IC8001 and its peripheral circuits. (IC8251, etc.)

6 – 3

LC-40D68UT

<HDMI input> No video (4)-1

HDMI: No external input video [INPUT-5] HDMI: No external input video [INPUT-6]


NO


YES


Does the DDC5V signal come from pin (18) of SC1602 to pin (B18) of IC8001 (CPU)?

Does the HPD signal come from pin (W16) of IC8001 to pin (19) of

SC1602?

NO

Check the line between the input terminals of SC1602 and IC8001 and their peripheral circuits.

YES

Do the DDC_I2C signals come from pins (15/16) (DDC_SCL/

DDC_SDA) of SC1602 to pins (A18/A19) of IC8001 (CPU)?

Are there the TMDS signal inputs at pins (H21/H20) (CLK-/+),

(G21/G22) (D0-/+), (F21/F22) (D1-/+), (G20/G19) (D2-/+), all of

IC8001?


NO


YES

Does the HOT PLUG detection function?

Does the DDC5V signal come from pin (18) of SC1601 to pin (A17) of

IC8001 (CPU)?

Does the HPD signal come from pin (W17) of IC8001 to pin (19) of

SC1601?

NO

Check the line between the input terminals of SC1601 and

IC8001 and their peripheral circuits.

YES

Do the DDC_I2C signals come from pins (15/16) (DDC_SCL/DDC_SDA) of SC1601 to pins (D16/D17) of IC8001 (CPU)?

Are there the TMDS signal inputs at pins (D20/D19) (CLK-/+), (E21/E20)

(D0-/+), (D22/D21) (D1-/+), (C22/C21) (D2-/+), all of IC8001?

NO

Check the line between the input terminals of SC1602 and IC8001 and their peripheral circuits.

Check IC1611 (EEPROM of EDID) and its peripheral circuits.

(DDC_SCL: pin5, DDC_SDA: pin6, all of IC1611)

YES YES


IC8001?





NO



Check IC1610(EEPROM of EDID) and its peripheral circuits.



(IC8251, etc.)

YES


6 – 4

LC-40D68UT

<HDMI input> No video (4)-2

HDMI: No external input video [INPUT-7]


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

YES

Does the HOT PLUG detection function?

Does the DDC5V signal come from pin (18) of SC1603 to pin

(C17) of IC8001 (CPU)?

Does the HPD signal come from pin (W19) of IC8001 to pin (19) of SC1603?

YES

Do the DDC_I2C signals come from pins (15/16) (DDC_SCL/

DDC_SDA) of SC1602 to pins (C18/B19) of IC8001 (CPU)?

Are there the TMDS signal inputs at pins (D20/D19) (CLK-/+),

(C20/C19) (D0-/+), (B22/B21) (D1-/+), (A22/S21) (D2-/+), all of

IC8001?

YES

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

LV0OUT0P/M (N19/N20), LV0OUT1P/M (N21/N22),

LV0OUT2P/M (P19/P20), LV0OUT3P/M (R19/R20),

LV0OUT4P/M (R21/R22), LV0CK0P/M (P21/P22),

LV1OUT0P/M (J21/J22), LV1OUT1P/M (K19/K20),

LV1OUT2P/M (K21/K22), LV1OUT3P/M (L21/L22),

LV1OUT4P/M (M21/M22), LV1CK0P/M (L19/L20)


YES

NO

NO





Check IC1612 (EEPROM of EDID) and its peripheral circuits.


NO Check IC8001 and its peripheral circuits. (IC8251, etc.)

6 – 5

LC-40D68UT

No video (5)

No video at UHF/VHF broadcast signal reception

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

No video at digital broadcast signal reception

Is there the analog video signal output (VIDEO) at pin (19) of tuner

(TU1101)?

NO

Check the Tuner I2C lines.

1) TU1101: pin (8) (TUN_SDA_C5), pin (9)

(TUN_SCL_C5)

2) SC1101/SC1201: pin (16), pin (15)

3) IC8001: pin (F2), pin (E1)

Check TU1101 and its peripheral circuits.

YES

Is there the analog video signal input at pin (B11) of IC8001

(CPU)?

Are there the video signal outputs (IF_P/N) at the pins (12) and (13) of tuner (TU1101)?

NO


1) TU1101:pin (8) (TUN_SDA_C5), pin (9) (TUN_SCL_C5)

2) SC1101/SC1201: pin (16), pin (15)

3) IC8001: pin (F2), pin (E1)


YES

Are there the video signal inputs at pin (A4)/(B4) (IF_P/N) of IC8001

(CPU)?

Are there IF-AGC signal inputs at pin (F1) of IC8001 (CPU)?

NO

Check the line between IC8001 and TU1101, and their peripheral circuits.

1) TU1101: pin (19)

2) SC1101/SC1201: pin (3)

3) IC8001: pin (B11)

YES YES


IC8001?





NO

Check the line between IC8001 and TU1101, and their peripheral circuits.

1) TU1101: pin (12) (IF_P), pin (13) (IF_N), pin (14) (IF_AGC)

2) SC1101/SC1201: pin (5), pin (6), pin (10)

3) IC8001:pin (A4), pin (B4), pin (F1)


(IC8251, etc.)

YES


6 – 6

LC-40D68UT

No audio (1)-1

INPUT-1 No audio.



NO

Refer to “:No external input video [INPUT-1]”.

YES

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

NO

Set the audio output to “FIXED”.

YES

Does the audio signal come from pins (5) (L) and (7) (R) of input terminal (J509) to pins (12) (L) and (1) (R) of IC503 (AUDIO

SWITCH)?


NO


YES



NO

YES

Does the audio signal come from pins (2) (L) and (4) (R) of input terminal

(J505) to pins (15) (L) and (2) (R) of IC503 (AUDIO SWITCH)?

NO

Check the line between J509 and IC503.

YES

Does the audio signal come from pins (13) (L) and (3) (R) of IC503 to pins (B2) (L) and (A1) (R) of IC8001 (CPU)?

NO


YES

Does the audio signal come from pins (13) (L) and (3) (R) of IC503 to pins

(B2) (L) and (A1) (R) of IC8001 (CPU)?

NO

Check IC503/IC8001 and its peripheral circuits.

(IC502, Q509, Q510, etc.)

Check the audio signal lines between IC503 and

IC8001.

1) IC503: pin (13) (A_INL), pin (3) (A_INR)

2) SC501/SC601: pin (15), pin (14)

3) IC8001: pin (B12), pin (A1)

Check the audio switching signals (AUDIO_CTL0/1) between IC503 and IC8001.

1) IC8001: pin (L1) (AUDIO_CTL0), pin (K1)

(AUDIO_CTL1)

2) SC1101/SC1201: pin (17), pin (18)

3) Q510: pin (2), Q509: pin (2)

4) IC503: pin (10), pin (9)

YES YES

Does the audio signal come from pins (C4/A3) (SPOUT_L/R) of IC8001 (CPU) to pins (3) (INLP), and (7) (INRP) of IC2701 (AMP)?

NO


(IC502, Q509, Q510, etc.)

Check the audio signal lines between IC503 and IC8001.


2) SC501/SC601: pin (15), pin (14)

3) IC8001: pin (B12), pin (A1)

Check the audio switching signals (AUDIO_CTL0/1) between

IC503 and IC8001.

1) IC8001: pin (L1) (AUDIO_CTL0), pin(K1) (AUDIO_CTL1)

2) SC1101/SC1201: pin (17), pin (18)

3) Q510: pin (2), Q509: pin (2)

4) IC503: pin (10), pin (9)

NO Check the line between IC8001 and IC2701, and their peripheral circuits (Q1306/Q1307,

AMP_MUTE line, etc.).

YES

Is the audio output from IC2701 as specified?


YES

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

6 – 7

LC-40D68UT

No audio (1)-2



NO Refer to “:No external input video [INPUT-3]”.

YES


YES

Does the audio signal come from pins (5) (L) and (4) (R) of input terminal (J501) to pins (14) (L) and (5) (R) of IC503 (AUDIO

SWITCH)?

YES

Does the audio signal come from pins (13) (L) and (3) (R) of

IC503 to pins (B2) (L) and (A1) (R) of IC8001 (CPU)?

NO Set the audio output to “FIXED”.

NO Check the line between J501 and IC503.

(AMP)?

YES

Does the audio signal come from pins (C4/A3) (SPOUT_L/R) of

IC8001 (CPU) to pins (3) (INLP), and (7) (INRP) of IC2701

YES


NO

NO


(IC502, Q509, Q510, etc.)

Check the audio signal lines between IC503 and IC8001.


2) SC501/SC601: pin (15), pin (14)

3) IC8001: pin (B12), pin (A1)

Check the audio switching signals (AUDIO_CTL0/1) between

IC503 and IC8001.

1) IC8001: pin (L1) (AUDIO_CTL0), pin (K1) (AUDIO_CTL1)

2) SC1101/SC1201: pin (17), pin (18)

3) Q510: pin (2), Q509: pin (2)

4) IC503: pin (10), pin (9)

Check the line between IC8001 and IC2701, and their peripheral circuits (Q1306/Q1307, AMP_MUTE line, etc.).


YES


6 – 8

LC-40D68UT

No audio (2)

[PC analog audio input] INPUT-4 No audio.

[HDMI analog audio input] INPUT-6 No audio.


NO


YES


NO


YES

Is the “PC Audio Select” selected for “Input4 (PC)” on the menu screen?


NO


YES



NO

YES

Is the “PC Audio Select” selected for “Input6 (HDMI)” on the menu screen?

NO

Set the HDMI audio output to “Input4 (PC)”.

NO

Set the HDMI audio output to “Input6 (HDMI)”.

YES

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

YES YES

Does the audio signal come from pins (2) (L) and (3) (R) of input terminal (J506) to pins (11) (L) and (4) (R) of IC503 (AUDIO SWITCH)?

NO

Set the HDMI audio output to “Analog”.

NO


YES

Does the audio signal come from pins (13) (L) and (3) (R) of IC503 to pins (B2)

(L) and (A1) (R) of IC8001 (CPU)?

NO


(IC502, Q509, Q510, etc.)

Check the audio signal lines between IC503 and

IC8001.


2) SC501/SC601: pin (15), pin (14)

3) IC8001: pin (B12), pin(A1)

Check the audio switch control signal lines

(AUDIO_CTL0/1) between IC503 and IC8001.

1) IC8001: pin (L1) (AUDIO_CTL0), pin (K1)

(AUDIO_CTL1)

2) SC1101/SC1201: pin (17), pin (18)

3) Q510: pin (2), Q509: pin (2)

4) IC503: pin (10), pin (9)

YES




YES



YES


6 – 9

LC-40D68UT

No audio (3)

INPUT-5 No audio (HDMI connected)



[INPUT-5 input]


[INPUT-6 input]


[INPUT-7 input]


NO

Refer to “:No external input video [INPUT-5/6/7]”.

YES

[INPUT-5 input]

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

[INPUT-6 input]


[INPUT-7 input]


YES


NO


YES

Does the audio signal come from pins (C4/A3) (SPOUT_L/R) of IC8001 (CPU) to pins (3) (INLP), and (7)

(INRP) of IC2701 (AMP)?

NO

Check the line between IC8001 and IC2701, and their peripheral circuits (Q1306/

Q1307, AMP_MUTE line, etc.).

YES


NO

Check IC2701 and its peripheral circuits.

YES


6 – 10

LC-40D68UT

No audio (4)

No audio at UHF/VHF broadcast signal reception.

No audio at digital broadcast signal reception.

Is TV selected on the input select menu screen?

YES reception”.

NO

Refer to “No video at UHF/VHF broadcast signal


Is TV selected on the input select menu screen?

NO

Refer to “No video at digital broadcast signal reception”.

YES

If no video appears, refer to “No video at digital broadcast signal reception”.



NO NO


YES

Is there the SIF signal output at pin (16) of tuner (TU1101)?

Is there the AFT signal output at pin (17) of tuner (TU1101)?

NO


1) TU1101: pin (8) (TUN_SDA_C5), pin (9)

(TUN_SCL_C5)

2) SC1101/SC1201: pin (16), pin (15)

3) IC8001: pin (F2), pin (E1)


YES

Does the SIF signal come from pin (16) of tuner (TU1101) to pin

(D5) of IC8001 (CPU)?

Does the AFT signal come from pin (17) of tuner (TU1101) to pin

(W22) of IC8001 (CPU)?

NO

Check the line between TU1101 and IC8001, and their peripheral circuits (Q1101, Q1102, etc.).

1) TU1101: pin (16) (SIF), pin (17) (AFT_OUT)

2) SC1101/SC1201: pin (8), pin (12)

3) IC8001: pin (D5), pin (W22)

YES

YES




YES



YES


6 – 11

Is the audio output from the monitor set at “VARIABLE” or

“FIXED” on the menu screen?

No monitor audio output

NO Check IC8001 (CPU) and its peripheral circuits.

LC-40D68UT

YES

Are there the audio signal outputs (I2S Line) at pins (H4)

(LINE_LRCLK), (J4) (LINE_MCLK), (K3) (LINE_BCLK) and (K4)

(LINE_DATA) of IC8001 (CPU)?

YES

Does the audio signal come from pins (H4/J4/K3/K4)

(LINE_LRCLK/LINE_MCLK/LINE_BCLK/LINE_DATA) of IC8001 to pins (4) (LRCLK), (1) (MCLK), (2) (BCLK) and (3) (DATA) of

IC1301 (Audio DAC)?

YES

Does the audio signal come from pins (11)/(10) (LINE_OUT_L/R) of IC1301 to pins (4) (L) and (2) (R) of J507?

NO

NO

NO

Check IC8001 (CPU) and its peripheral circuits.

Check IC8001 (CPU) and each signal lines/its peripheral circuits.

Check the line between IC1301 and J507 and their peripheral circuits.

1) TU1301: pin (11) (LINE_OUT_L), pin (10) (LINE_OUT_R)

2) SC501/SC601: pin (22), pin (21)

3) J507: pin (4) (L), pin (2) (R)

Check the LINE_MUTE line and its peripheral circuits (Q1310/

Q1311, etc.).

YES

Check the connector (J507) and their peripheral circuits, and speakers and the Cable.

6 – 12

LC-40D68UT

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

No INPUT-5/6/7 (HDMI) audio.

If no video appears, refer to “No external input video (HDMI)

[INPUT-5/6/7]”.

No audio at digital broadcast signal reception.

If no video appears, refer to “No video at digital broadcast signal reception”.

Is there the SPDIF signal output (OPT_OUT) at pin (J3) of IC8001 (CPU)?

NO Check the IC8001 and its peripheral circuits.

YES

Is there the SPDIF signal (OPT_OUT) input at pin (2) of IC1304 (SPDIF

BUFFER)?

YES

Is there the MUTE signal input at pin (1) of IC1304? (usual: High, Mute: Low)

NO Check the line between IC8001 and IC1304.

YES

Is there the SPDIF signal input at pin (1) of D507 (OPTICAL OUTPUT)?

NO Check the MUTE_A_ALL, AC_DET,

OPU_MUTE, HDMI_MUTE signals, and their peripheral circuits. (Q1304, Q1312, D1310,

D1314, etc.)

NO Check the line between IC1304 and D507.

1) IC1304: pin (4) (OPT_OUT_TO_TERM)

2) SC1101/SC1201: pin (1)

3) D507: pin (1)

No optical output under the following conditions as per HDMI requirements.

* Audio contents protected.

* Audio frequency beyond 48kHz.

* Audio bit length beyond 16bits.

YES

Check the speakers and the optical cable.

6 – 13

LC-40D68UT

LED flashing timing chart for error notification.

250ms 1sec

1) Power LED (Large classification)

Error type

Lamp error

Flashes once: Fast

H: On

Power green LED operation (1 cycle)

L: Off

Power error

Flashes twice

Communication error with the main CPU

Flashes 3 times

L: Off

H: On

Vsync error

Flashes 4 times

L: Off

H: On

Monitor temperature error

Flashes 5 times

L: Off

H: On

Program area data destruction

Flashes 8 times

H: On

L: Off

H: On

L: Off

Unused

Pins are monitor microprocessor (IC2002) pins.

Judged by the ERR_PNL port. Confirmed after 10 consecutive detections at 500 ms intervals (detected only when the backlight is on).

[Released]

• Set “LAMP ERROR” of the adjustment process to 0.

• Execute AC_ON with [CH_DOWN] and [VOL_UP] on the unit down.

• Continuous illumination for 3 minutes.

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

Refer to “Power error details”.

Detection is performed at 16 ms intervals, and each terminal for monitoring the power is polled. If the error logic is detected twice in a row, error is confirmed so as to shift to the error standby.

Judged by the communication line error or main CPU communication error.

Refer to “Communication error details”.

Communication line with the main CPU: TxD, RxD

Check debug statements for the main CPU.

VSYNC error (L or H fixed).

Image processing IC operation error

Judged by monitoring temperature with the temperature sensor.

When the panel temperature is 60 °C or more for 15 seconds or more in a row, caution is displayed. If the panel temperature is

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

[Released]

Reduce the value of MONITOR MAX TEMP of OTHERS (temperature protection threshold).

Flash ROM data error in the microprocessor.

[Released]

Write the microprocessor software.

6 – 14

LC-40D68UT

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

Error type

DET_POW1 error

Flashes once

H: On

OPC LED operation (1 cycle)

DET_POW2 error

Flashes twice

L: Off

H: On

DET_6V error

Flashes 3 times

L: Off

H: On

PNL_POW0 error

Flashes 5 times

L: Off

H: On

Pins are monitor microprocessor pins unless otherwise

DET_POW1 error (L).

DET_POW2 error (L).

Detected by the above polling.

Detection starts in 400 ms after SMPOW becomes High.

D3.3V is not applied.

DET_6V error (L).

D5V or A5V is not applied.

specified.


UR13V is not applied.

Main error

Flashes 7 times

L: Off

H: On

DET_POW0 error (L).


Detection starts in 400 ms after PNL_ON becomes High.

Panel power is not applied.

Main microprocessor detection error.

(FAN error, 1bitAMP error, etc.)

L: Off

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

Error type

Initial communication reception

Flashes once

Time-out setting reception error

Start-up confirmation reception error

Flashes twice

OPC LED operation (1 cycle)

H: On

L: Off

H: On

Basically, log analysis of debug print statements or communication log analysis by a bus monitor is performed.

Initial communication from the main CPU is not received. If initial communication from the main microprocessor is not received within 15 seconds during start-up, it is judged to be an error.

The unit is reset and restarted until the third error, and error standby is activated at the fourth error.

Communication line error or main CPU start-up failure.

Time-out setting and start-up mode change from the main CPU is not received.

Main CPU start-up failure or front microprocessor reception failure.

Regular communication error

Flashes 3 times

L: Off

H: On

L: Off

In the operation state, regular communication is performed every 1 second. If communication from the min CPU is not received five times in a raw, it is judged to be a regular communication error.

The regular communication errors are counted. The unit is reset and restarted until the third error, and error standby is activated at the fourth error.

The regular communication error counter is cleared to 0 when normal operation continues for 10 minutes.

Main CPU start-up failure or front microprocessor reception failure.

6 – 15

LC-40D68UT

CHAPTER 7. OVERALL WIRING/BLOCK DIAGRAM

[1] OVERALL WIRING DIAGRAM

OVERALL WIRING DIAGRAM

J

Service Manual

FFC FFC

[LW]

1 51

LCD Controller

(AUO)

I

H

G

[LB2]

1

14

Inv. Unit

(AUO)

F

[LB2]

1

14

[PD]

1

14

TERMINAL UNIT

DUNTKF465FM02

Optical

Output

E

MAIN UNIT

DUNTKF463FM02

D POWER Unit

40" : RDENCA393WJQZ

C

B

A

1

[RA] 1 10

R/C_LED Unit

F096

2 3 4

Rch: RSP-ZA392WJZZ

5 6 7 8 9

Full-HD Panel (1920 1080) (AUO)

40" R1LK400D3LF31Z

10 11 12

7 – 1

13 14

Lch: RSP-ZA391WJZZ

15 16 17 18

[KM]

1

5

KEY Unit

E266

19

LC-40D68UT

[2] SYSTEM BLOCK DIAGRAM

SYSTEM BLOCK DIAGRAM

J

INPUT

1

CVBS/LR

Component

CVBS

L/R

YPbPr

I

INPUT

2 LR

Component

L/R

YPbPr

INPUT

3

CVBS/LR

CVBS

L/R

INPUT

4/6

RGB/HDMI

Audio

(Mini Plug)

RGB_LR

H

Audio Out L/R

OPTICAL

OUT

OPT_OUT

G

F

E

D

C

SP

[SP]

P2701

EXT-SP

UR12V

IC2701

SP AMP

YDA148QZ

AMP_MUTE

STANDBY

AMP_PROTECT

SP_L/R

Disclete

Mute

INPUT

4

D-SUB

RGB

PCIN_H/V

PCIN_R/G/B

DSUB_UART Q9002

Bus SW

IC602

EEPROM

+5V

UCOM_RS

INPUT

5

HDMI 1

IC1611

EEPROM

+5V

INPUT

6

HDMI 2

IC1610

EEPROM

+5V

INPUT

7

HDMI 3

IC1612

EEPROM

+5V

B

Service J8001

USB

USB+5V

OverCurr.DET

+5V VBUS_ST

M32TRST_N

A

RF IN

1

TU1101

Analog/

Digital

Tuner

A5V

AFT

TV_CVBS

2 3

TERMINAL

4

MAIN

PNL+12V

IC503

Audio-SW

TC4052BT

A9V

5

PE

VCOM_SDA,VCOM_SCL

VCOM_WP

SYNC_DET

BU+3.3V

IC2001

Reset

RST_H8FLS_CPLD

From CPU

WRITE_BUF

P8001

3pin

A9V

A5V

A3.3V

HDMI_MUTE

+5V_A

Mute

IC1304

SPDIF

I2C_SDA/I2S_SCL

(100KHz)

VCOM_SDA

VCOM_SCL

P2601

IC2601

BUS-SW

HC2G66DP

+3.3V

Vbrt

IC2602

DAC

M62332FP

+3.3V

P9601

TUN_SDA_C5/TUN_SCL_C5 (100KHz 5V)

Disclete

Mute

A9V

IC1301

Audio DAC

AK4341ET

D3.3V

MUTE I2S

N_LINE_DAC_RST

LINE_MCLK/BCLK/DAT/LRCLK

I2C

TUN_I2C

D_IF in

SIF

AGC

SPDIF

DTV/SPDIF

SPOUT_L/R

I2S

H/V

RGB in

HDMIin

Port0 Port1 Port2

CVBS YPbPr

IC8001

DTV-C5

Digital AV decode & Main CPU

BU+3.3V

IC9002

SUB-SW

HC2G66DP

+3.3V

+1.8V

+1.2V

BU+3.3V

IC8454

EEPROM

256kbit

I2C_SDA_UCOM

I2C_SCL_UCOM

IC2004

Gate

7WH126FU

RxD,TxD

AFT

RxD,TxD

RxD_RS,TxD_RS

BU+3.3V

IC2002

R8C/2A

IXC165WJ

I2C

A/D

Monitor Micom

UART_CPU

UART_RS

O/S_SET

R/L,U/D

I/O

I/O

STB

From CPU

STB_CPU

IC2007

FL2001

X'tal

16MHz

Von

A/D

THERMO

ERR_PNL

AC_DET

PS_ON

TH2001

Thermister

I/O

PM_REQ, CBOOTS

N_SRESET

I/O

I/O

I/O INT0 A/D I/O

25.000MHz

X8001

X'tal

+1.8V

IC8251

DDR2(800)

512Mb*1

UART_0

UART_1

P8001

Debug

Connector

RESET

N_CPU_RST

IC9301

N_DBG_RST

N_SRESET

+3.3V

50MHz

IC8451

Serial FLASH

64Mbit

BackUp

BU+5V

BU+3.3V

MAIN

A9V

5V

D3.3V

D1.8V

D1.2V

A5V

A3.3V

A1.8V

POWER CIRCUIT

Von

ERR_PNL

AC_DET

PS_ON

UR12V

BU5V

From CPU

Vbrt

PNL_PWM

PNL_ON

BU+3.3V

6 7 8 9 10 11 12 13

[KM] P2002 (4p)

[KM] P105 (5p)

KEY

MENU

POWER

INPUT

CHANNEL

VOLUME

[RA] P2003 (10p)

[RA] P102 (10p)

LED

R/C

OPC

LED

14 15 16

7 – 2

17

C-PWB

POWER INV

18

[RSDS] (64p

PANEL

[RSDS] (64p

19

PartsGuide

LC-40D68UT

PARTS GUIDE

No. S40F340D68UT/

LCD COLOR TELEVISION

MODEL

LC-40D68UT

[1] PRINTED WIRING BOARD

ASSEMBLIES

[2] LCD PANEL MODULE

[3] CABINET PARTS

CONTENTS

[4] SUPPLIED ACCESSORIES

[5] PACKING PARTS

(NOT REPLACEMENT ITEM)

[6] SERVICE JIGS

(USE FOR SERVICING)

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

This document has been published to be used for after sales service only.

The contents are subject to change without notice.

LC-40D68UT

NO.

PARTS CODE

PRICE

RANK

NEW

MARK

PART

DELIVERY

[1] PRINTED WIRING BOARD ASSEMBLIES

N DUNTKF463FM02

N DUNTKF465FM02

N DUNTKE266FM02

N DUNTKF096FM01

N RDENCA393WJQZ

N 9JS-5540T04C04

N 9JS-1940T04001

[2] LCD PANEL MODULE

N R1LK400D3LF31Z

BN

AZ

AH

AN

BD

DD

N

N

N

N

N

N

X

J

J

X

X

X

X

X

MAIN Unit

TERMINAL Unit

KEY Unit

R/C, LED Unit

POWER Unit

LCD CONTROL Unit

INVERTER Unit

40" LCD Panel Module Unit

DESCRIPTION

2

LC-40D68UT

[3] CABINET PARTS

A

3

3-2 3-1

23

S

KEY Unit

26

N

P

R

25

C

5

40" LCD Panel

Module Unit

B

C

B

27

34

B

1-1

15

18

1

9

32

15

15

14

E

14

15

15

1-2

19

28

C

A

36

1-3

M

4

B

A

R/C, LED Unit

2

35

6

32

10

19

18

E

19

L

11

31

7

MAIN Unit

13

33

35

S

H

13

J

31

35

35

35

L

7

Q

TERMINAL Unit

35

N

P

24

35

16 Q

20

13

33

21

M

H

C

17

35

8

16

31

I

35

8

I

31

J

13

35

J

35

35

A

22

POWER Unit

R

30

Stand Support Ass'y

J

12

Stand Unit

X1

X2

15

29

3

LC-40D68UT

NO.

PARTS CODE

[3] CABINET PARTS

1 CCABAC508WJ31

1-1 Not available

1-2 HBDGBA061WJSA

1-3 Not available

2 GCABBB678WJ3A

3 CBTN-A863WJ31

3-1 JBTN-A863WJ3A

3-2 HiNDPD653WJSA

4 GCOVAC576WJKZ

5 GCOVAD656WJ3A

6 HiNDPD658WJSA

7 LANGKC597WJZZ

8 LANGKC598WJZZ

9 LANGKC599WJZZ

10 LANGKC600WJZZ

11 LANGKC603WJZZ

12 LANGKC604WJZZ

13 LANGKC624WJM1

14 LHLDWA133WJKZ

15 LHLDWA175WJUZ

16 LHLDWA289WJKZ

17 LHLDZB650WJKZ

18 PMLT-A610WJZZ

19 PMLT-A635WJZZ

20 QCNW-K760WJQZ

21 QCNW-K761WJQZ

22 QCNW-K762WJPZ

23 QCNW-K763WJQZ

24 QCNW-K764WJQZ

25 QCNW-K765WJPZ

26 RSP-ZA391WJZZ

27 RSP-ZA392WJZZ

28 TLABK0023TAZZ

29 TLABNB037WJZZ

30 TLABNC391WJZZ

31 XBBS740P06000

32 XBPS730P06WS0

33 XEBS740P10000

34 XEBS940P16000

35 XHPS830P06WS0

36 XHPS830P10WS0

AG

AU

AG

AD

AH

AH

AP

AP

AE

AE

AC

AC

AC

AA

AA

AB

AA

AB

-

AA

AA

AB

AB

AA

AB

AC

AG

AB

AG

AC

AC

AE

AE

AZ

-

AH

-

BA

AF

AF

AC

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

PRICE

RANK

NEW

MARK

PART

DELIVERY

DESCRIPTION

X

X

J

J

X

X

X

X

J

X

X

X

X

X

J

J

J

J

J

J

J

J

X

-

J

X

X

X

X

J

X

X

X

X

X

X

X

X

-

J

-

Front Cabinet Ass'y

Front Cabinet

SHARP Badge

LED Cover

Rear Cabinet

KEY Button Cover Ass'y

KEY Button Cover

KEY Button Label

VESA Hole Cover, x4

Bottom Cover

Model Label

Center Angle, x2

POWER PWB Angle, x2

MAIN PWB Angle-W

MAIN PWB Angle-L

Panel Angle-L

Panel Angle-R

VESA Angle, x4

Wire Holder, x2

Wire Holder, x6

Wire Holder, x2

PWB Spacer

Gasket, x3

Gasket, x7

Connecting Cord (PD)

Connecting Cord (LW)

Connecting Cord (LB2)

Connecting Cord (KM)

Connecting Cord (RA)

Connecting Cord (SP)

Speaker-L

Speaker-R

Bar Code Label

Serial No. Label (Back)

Serial No. Label (Side)

Screw (for BL Chassis), x4

Screw (for BL Chassis), x4

Screw (for Front Cabinet), x2

Screw (for Front Cabinet/Rear Cabinet), x9

Screw (for Angle), x29

Screw (for Rear Cabinet), x3

4

[4] SUPPLIED ACCESSORIES

X6 Remote control unit X11 “AA” size battery X5 AC cord

X2 Stand unit X1 Stand support ass'y

X4 Cable clamp

X7 Enquete Card

X9 Operation manual

X3 Screw ass'y

X8

X10

Extendwaranty

Connection guide

!

NO.

PARTS CODE

PRICE

RANK

NEW

MARK

PART

DELIVERY

[4] SUPPLIED ACCESSORIES

X1 CANGFA675WJ01

X2 CDAi-A579WJ01

X3 CSAKHA036WJ01

X4 LHLDWA298WJKA

X5 QACCDA066WJPZ

X6 RRMCGA667WJSA

X7 TCADEA243WJZZ

X8 TGAN-A845WJN1

X9 TiNS-E640WJZZ

X9 TiNS-E641WJZZ

X9 TiNS-E642WJZZ

X10 TMAN-A036WJZZ

X11 Not available

AF

AZ

AD

AD

AK

AH

AB

AB

AC

AC

AC

AB

-

N

N

N

N

N

N

N

N

N

N

X

X

X

X

-

X

X

X

X

X

X

X

J

Stand Support Ass'y, x2

Stand Unit

Screw Ass'y

Cable Clamp

AC Cord

Remote Control

Enquete Card

Extendwaranty

Operation Manual (English)

Operation Manual (French)

Operation Manual (Spanish)

Connection Guide

Battery

DESCRIPTION

5

LC-40D68UT

LC-40D68UT

[5] PACKING PARTS (NOT REPLACEMENT ITEM)

X6

S9

X3

S6

S5

X1

S6

X7

X8

X9

X10

S7

X4

X11

S8

X5

S6

S3

S1

S4

X2

S6

S6

S2

6

S10

S10

Not Replacement item

NO.

PARTS CODE

PRICE

RANK

NEW

MARK

PART

DELIVERY

DESCRIPTION

[5] PACKING PARTS (NOT REPLACEMENT ITEM)

S1 SPAKAA520WJZZ

S2 SPAKCF434WJZZ

S3 SPAKPB219WJZZ

S4 SPAKPB422WJZZ

S5 SPAKPB423WJZZ

S6 SPAKXC881WJZZ

S7 SSAKA0101GJZZ

S8 SSAKAA032WJZZ

S9 SSAKHA036WJZZ

S10 TLABKA009WJZZ

-

-

-

-

-

-

-

-

-

-

N

N

N

N

N

N

N

N

N

[6] SERVICE JIGS (USE FOR SERVICING)

-

-

-

-

-

-

-

-

-

-

Cover Sheet

Packing Case

Sack

Wrapping Paper

Wrapping Paper

Packing Foam

Polyethylene Bag

Polyethylene Bag

Polyethylene Bag

Case No. Label

N QCNW-G401WJQZ

N QCNW-H649WJPZ

N QCNW-H762WJQZ

N QCNW-K865WJQZ

N QCNW-K866WJQZ

N QCNW-K867WJQZ

AP

AP

AV

N

N

N

J

J

J

J

J

J

L=1000mm 4-5pins, Main to Key (KM)

L=1000mm 4pins, Main to Speaker (SP)

L=1000mm 10pins, Main to R/C LED (RA)

L=1000mm 51pins, Main to T-CON (LW)

L=1000mm 12-14pins, Main to Power (PD)

L=1000mm 14pins, Power to Inverter (LB2)

LC-40D68UT

7

LC-40D68UT

Apr. 2010

SH. DS

COPYRIGHT © 2010 BY SHARP CORPORATION

ALL RIGHTS RESERVED.

No Part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

SHARP CORPORATION

AV Systems Group

CS Promotion Center

Yaita,Tochigi 329-2193, Japan

protech HDM-900WD Service manual

SERVICE MANUAL

LCD COLOR TELEVISION

MODEL

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

CAUTION: FOR CONTINUED PROTECTION

DVM

AC SCALE

BEFORE RETURNING THE RECEIVER (Fire &

Shock Hazard)

SAFETY NOTICE

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

AVERTISSEMENT

VERIFICATIONS CONTRE L'INCEN-DIE ET LE

CHOC ELECTRIQUE

AVIS POUR LA SECURITE

PRECAUTIONS FOR USING LEAD-FREE SOLDER

Employing lead-free solder

Using lead-free wire solder

Soldering

MAJOR SERVICE PARTS

PWB UNIT

OTHER UNIT

IC FOR EXCLUSIVE USE OF THE SERVICE

SERVICE JIGS

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Optional Accessory

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

TV (Front)

TV (Rear/Side)

Direct Button Operation

Changing Volume

Audio status

POWER

Changing Channels

Examples:

FAVORITE CH

MUTE

Sleep Timer

FLASHBACK

AV MODE

PC

Operating On-Screen Display Menu

MENU: Displays the menu screen.

RETURN: Returns to the previous menu screen.

EXIT: Turns off the menu screen.

AUDIO

MTS/SAP stereo mode

Digital broadcasting audio mode

FREEZE

INPUT

DISPLAY

Closed Captions and Digital Closed Captions

Example:

Examples:

VIEW MODE

For 4:3 programs

For HD programs

For PC input mode

QUICK REFERENCE

Attaching/Detaching the Stand

Setting the TV on the Wall

Using an optional bracket to mount the TV

Hanging on the wall

Appendix

Troubleshooting

Appendix

Troubleshooting - Error Message

Cautions regarding use in high and low temperature environments

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

1. Removing of Stand Unit and Rear Cabinet.

Stand Unit

2. Removing of Speaker-L/R, KEY Unit Ass’y, Bottom Cover and R/C, LED Unit.

Speaker-R