SHARP LC-37D44U Service Manual

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LC-37D44U

SERVICE MANUAL

No. S18D7LC37D44U

LCD COLOR TELEVISION

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

PRECAUTION............................................................ i

PRECAUTIONS A PRENDRE LORS DE LA

REPARATION ........................................................... ii

PRECAUTIONS FOR USING LEAD-FREE

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

PRECAUTIONS IN SERVICING THE HDCP-

KEY ROM................................................................. iv

CHAPTER 1. SPECIFICATIONS

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

CHAPTER 2. OPERATION MANUAL

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

CHAPTER 3. DIMENSIONS

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

CHAPTER 4. REMOVING OF MAJOR PARTS

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

MODEL

CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES

[1] R/C, LED Unit.........................................................9-1

[2] KEY Unit.................................................................9-2

[3] MAIN Unit...............................................................9-3

CHAPTER 10. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM.......10-1

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

[3] KEY Unit...............................................................10-3

[4] MAIN Unit.............................................................10-4

Parts Guide

LC-37D44U

CHAPTER 5. ADJUSTMENT

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

CHAPTER 6. TROUBLE SHOOTING TABLE

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

CHAPTER 7. MAJOR IC INFORMATIONS

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

CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM

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

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

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-37D44U

SAFETY PRECAUTION

Service Manual

IMPORTANT SERVICE SAFETY PRECAUTION

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

WARNING

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

2. Disconnect AC power before servicing.

CAUTION: FOR CON T I N U ED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

F7101 (250V 6.3A) F7102 (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

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

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

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

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

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

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

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

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

TO EXPOSED METAL PARTS

AC SCALE

1.5k ohm 10W

0.15µF

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

SAFETY NOTICE

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

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

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

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

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

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

LC-37D44U

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

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

•

AVERTISSEMENT

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

Débrancher le récepteur avant toute réparation.

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

F7101 (250V 6.3A) F7102 (250V 1A)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

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

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

3. ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.

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

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

•

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

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

•

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

•

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

DVM

ECHELLE CA

1.5k ohm 10W

0.15

SONDE D'ESSAI

AUX PIECES METALLIQUES EXPOSEES

BRANCHER A UNE TERRE CONNUE

AVIS POUR LA SECURITE

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

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

LC-37D44U

PRECAUTIONS FOR USING LEAD-FREE SOLDER

Employing lead-free solder

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

Example:

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

Using lead-free wire solder

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

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

Soldering

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

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

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

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

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

Lead-free wire solder for servicing

PARTS CODE

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

PRICE RANK

PART

DELIVERY

DESCRIPTION

iii

LC-37D44U

PRECAUTIONS IN SERVICING THE HDCP-KEY ROM

Applied part: HDCP-KEY ROM

IC8451 RH-IXC373WJQZY (updated ROM)

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

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

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

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

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

LC-37D44U

CHAPTER 1. SPECIFICATIONS

Service Manual

[1] SPECIFICATIONS

Item Model: LC-37D44U

37" screen size class Advanced Super

LCD panel

Resolution 1,049,088 pixels (1,366 768)

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

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

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

TV Function

Receiving Channel

Digital Terrestrial Broadcast (8VSB)

Digital cable (64/256 QAM)

Audio multiplex BTSC System

Audio out 10W 2

INPUT 1 AV in, COMPONENT in

INPUT 2 AV in, S-VIDEO in

INPUT 3 COMPONENT in

INPUT 4 HDMI in with HDCP

INPUT 5 Audio in, HDMI in with HDCP

Terminals Rear

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

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

DIGITAL AUDIO OUTPUT

OUTPUT Audio out

SERVICE Software update

OSD language English/French/Spanish

Power Requirement AC 120 V, 60 Hz

Power Consumption 165 W (0.3 W Standby with AC 120V)

Weight

Dimension (W H D)



TV + stand 35.3 lbs./16.0 kg

TV only 30.9 lbs./14.0 kg

TV + stand 35

TV only

Operating temperature 32°F to 104°F (0°C to 40°C)

View & BLACK TFT LCD (Diagonal Measurement : 37 )



2-69ch

1-135ch (non-scrambled channel only)



Optical Digital audio output 1 (PCM/Dolby Digital)

253/





231/



91/16inch

33/4inch

++ +

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.

1 – 1

LC-37D44U

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part Names

TV (Front)

TV (Top/Rear)

LC-37D44U

Service Manual

Remote control sensor

OPC sensor

OPC indicator SLEEP indicator POWER indicator

Channel buttons (CH /)

Volume buttons (VOL /)

MENU button

INPUT button

AC INPUT terminal

AUDIO OUTPUT terminals

DIGITAL AUDIO OUTPUT terminal

INPUT 6 terminals (PC-IN)

INPUT 5 terminals (HDMI)

INPUT 4 terminal (HDMI)

POWER button

2 – 1

INPUT 1 terminals

SERVICE terminal

INPUT 2 terminals

Antenna/Cable in

INPUT 3 terminals

LC-37D44U

Part Names

Remote Control Unit

1 POWER: Switch the TV power on or enters

standby.

2CC:Display captions from a closed-caption

2 3

source.

3AUDIO:Selects the MTS/SAP or the audio mode

during multi-channel audio broadcasts.

40–9: Set the channel.

5(DOT):

6 FLASHBACK:Return to the previous channel or

external input mode.

7VIEWMODE:Select the screen size.

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

to normal screen.

9 ///,ENTER: Select a desired item on the

screen.

10 EXIT: Turn off the menu screen.

11 DISPLAY: Display the channel information.

12 SLEEP: Set the sleep timer.

13 AV MODE: Select an audio or video setting.

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

14 MUTE: Mute the sound.

15 VOL / : Set the volume.

16 CH / : Select the channel.

17 ENT: Jumps to a channel after selecting with the

0–9 buttons.

INPUT: Select a TV input source. (TV, INPUT 1,

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

19 PC: Quickly access to PC mode.

20 MENU: Display the menu screen.

21 RETURN: Return to the previous menu screen.

22 FAVORITE CH

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

different categories. While watching, you can toggle the selected

channels by pressing A, B, C and D.

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

2 – 2

QUICK REFERENCE

LC-37D44U

Attaching/Detaching the Stand

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

CAUTION

Attach the stand in the correct direction. 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 9 screws and a hex key

supplied with the stand unit.

2 Attach the supporting post for the stand unit onto

the base using the box for the stand unit as shown below.

Hex key

Screws

Setting the TV on the Wall

CAUTION

This TV should be mounted on the wall only with the AN-37AG5 (SHARP) wall mount bracket. The use of other wall mount brackets may result in an unstable installation and may cause serious injuries. Installing the TV requires special skill that should only be performed by qualified service personnel. Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting that results in accident or injury.

Using an optional bracket to mount the TV

You can ask a qualified service professional about using an optional AN-37AG5 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-37AG5 wall mount bracket. (See the bracket instructions for details.)

3 Insert the stand into the openings on the bottom

of the TV.

Insert and tighten the 4 screws into the 4 holes

on the rear of the TV.

Hex key

Soft cushion

Screws

Vertical mounting Angular mounting

About setting the TV angle

0/5/10/15/20°

LC-37D44U

The center of the display:

inch (6.0 mm) above

the "A" position.

Refer to the operation manual of AN-37AG5 for details.

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

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

2 – 3

LC-37D44U

Appendix

Troubleshooting

Problem

No power

•

Unit cannot be operated.

•

Remote control unit does not operate.

Picture is cut off/with sidebar

•

screen.

Strange color, light color, or color

•

misalignment

Power is suddenly turned off.

•

No picture

•

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 influences 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 the image position correct?

•

Are screen mode adjustments such as picture size made correctly?

•

Adjust the picture tone.

•

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

•

Check the input signal setting.

•

Is the sleep timer set?

•

Check the power control settings.

•

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

•

clean.

Is connection to other components correct?

•

Is correct input signal source selected after connection?

•

Is the correct input selected?

•

Is picture adjustment correct?

•

Is "On" selected in "Audio Only"?

•

Is a non-compatible signal being input?

•

Is the volume too low?

•

Is "Variable" selected in "Output Select"?

•

Have you pressed MUTE on the remote control unit?

•

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-Digital Broadcasting

The error message about reception of broadcast

The example of an error message

displayed on a screen

Failed to receive broadcast.

•

No broadcast now.

•

Error code

Check the antenna cable. Check that the antenna is correctly

E202

E203 Check the broadcast time in the program guide.

•

setup.

Possible Solution

Cautions regarding use in high and low temperature environments

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

•

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

•

heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction. Storage

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

2 – 4

PC Compatibility Chart

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

PC Horizontal Frequency VESA StandardResolution Vertical Frequency

720 x 400

VGA

XGA 1024 x 768

WXGA 1360 x 768

*These 3 formats are not supported by the analog RGB terminal.

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

640 x 480

800 x 600SVGA

31.5 kHz

37.9 kHz

37.5 kHz

35.1 kHz

37.9 kHz

48.1 kHz

46.9 kHz

48.4 kHz

56.5 kHz

60.0 kHz

47.7 kHz

70 Hz 60 Hz

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

LC-37D44U

O O O O O O O O O O O

2 – 5

LC-37D44U

Unit: inch (mm)

77/8(200)

(200)

(100)

91/16(230)

(70.3)

(95)

(367)

3519/32(904)

(52)

(585)

3215/32(824.4)

(463.8)

1527/32(402)

(637)

LC-37D44U

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

Service Manual

3 – 1

LC-37D44U

CHAPTER 4. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS

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

2. Remove the 1 lock screw, 4 lock screws, 6 lock screws and detach the Rear Cabinet.

Rear Cabinet

LC-37D44U

Front Cabinet

Stand

4 – 1

LC-37D44U

3. Remove the 8 lock screws, 2 lock screws, 2 lock shafts and detach the Main Shield.

4. Disconnect all the connectors from all the PWBs.

5. Remove the KEY Unit Ass'y.

Operation Button

KEY Unit

Main Shield

FPC

LB PD

SP-R

SP-L

4 – 2

6. Disconnect all the connectors from all the terminals of Speaker (L) (R) and detach the Speaker (L) (R).

7. Remove the 2 lock screws, 4 lock screws and detach the MAIN Unit.

8. Remove the 2 lock rivets and detach the Heat Sink.

9. Remove the 2 lock screws and detach the INVERTER Unit.

10.Remove the 2 lock screws and detach the POWER Unit.

LC-37D44U

POWER Unit

MAIN Unit

Heat Sink

Speaker (L)Speaker (R)

INVERTER Unit

4 – 3

LC-37D44U

11.Remove the 1 lock screw and detach the Bottom Cover.

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

13.Remove the R/C, LED Unit.

R/C, LED Unit

Stand Fix Angle

Bottom Cover

4 – 4

14.Remove the 4 lock screws and detach the LCD Panel Module.

15.Remove the 2 lock screws and detach the LCD Fix Angle-B.

16.Remove the 2 lock screws and detach the LCD Fix Angle-T.

17.Remove the 9 lock screws and detach the VESA Angle.

LC-37D44U

LCD Fix Angle-B

VESA Angle

LCD Fix Angle-T

LCD Fix Angle-B

4 – 5

LC-37D44U

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: DUNTKE450FM01

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.

• Panel timing controller software.

The main software, monitor microprocessor software, and Panel timing controller software can be upgraded by using a general-purpose USB Memory.

The followings are the procedures for upgrading, explained separately for the main software, monitor microprocessor software, and Panel timing controller 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 D44UAxxx.USB (named temporarily) for version upgrade to the root directory (folder) of the USB Memory.

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

Now the USB Memory for version upgrade is ready.

2.2.3 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals, above HDMI4 terminal in the rear of the unit.

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

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

5 – 1

LC-37D44U

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

UPGRADE FAILURE

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

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

UPGRADE SUCCESS

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

8. Now the software version upgrade is complete.

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

software version information.

5 – 2

LC-37D44U

2.3. Monitor microprocessor software version upgrade

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

Copy the file D44UVAxxx.USB and D44UMxxx.BIN (named temporarily) for monitor microprocessor software version upgrade to the USB memory.

2.3.1 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals, above HDMI4 terminal in the rear of the unit.

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

4. After 5 seconds, unpress the power button.

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

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

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

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

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

UPGRADE FAILURE

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

cause.

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

UPGRADE SUCCESS

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

9. Now the software version upgrade is complete.

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

itor microprocessor software version information and panel size information.

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2.4. Upgrading Panel timing controller software

Create the USB memory for Panel timing controller software version upgrade in the same manner as explained in the “Main software version upgrade.”

Copy the file D44UAxxx.USB and D44UAxxx.TCN to USB memory.

2.4.1 How to upgrade the software

1. Unplug the AC cord.

2. Insert the USB Memory for version upgrade (prepared as above) into the service socket located Right side from center at terminals, above HDMI4 terminal in the rear of the unit.

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

4. After the unit startup, the upgrade starts. The screen is not shown. This take about a minute.

5. When there is an error, ‘PANEL EEPROM’ field display the type. Ignore ‘UPGRADE SUCCESS’ that is displayed at the top.

UPGRADE SUCCESS

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

8. Now the software version upgrade is complete.

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

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

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

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

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

1) Key operation

Remote controller key Main unit key Function

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

ENTER ————— Executing a function

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

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

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

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

2) Description of display

(1) Current page/ (5) Destination

Total pages

1/34 [INFO] INPUT5 AUTO USA 37_UNDER

MAIN Version 1.09 (U 2007/07/19 2 A)

BOOT Version D44U 1.01

Monitor Version 1.02

Monitor BOOT Version 1.00

EQ DATA CHECKSUM ROM

TEMPERATURE 7B

LAMP ERROR 0

MONITOR ERR CAUSE 0

NORMAL STANDBY CAUSE

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

(2) Current page title

(3) Current selected input

(4) Current color system

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

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

(6) LCD Panel size/Speaker type

(7) Adjustment

process menu header

(8) Parameters

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5. List of adjustment process mode menu

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

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

1 [INFO]

1 MAIN Version Main software version 2BOOT Version 3 Monitor Version Monitor software version 4 Monitor BOOT Version 5 EQ DATA CHECKSUM Audio data checksum 6 TEMPERATURE Panel temperature 7 LAMP ERROR Number of termination due to lamp error 8 MONITOR ERR CAUSE 9 NORMAL STANDBY CAUSE Refer to *1 under the list for details

10 ERROR STANDBY CAUSE Refer to *2 under the list for details

2 [INIT]

1 INDUSTRY INIT (+Cause) Initialization to factory settings 2 INDUSTRY INIT 3 HOTEL MODE Hotel Mode 4 Center Acutime Accumulated main operation time 5 RESET Reset 6 Backlight Acutime Accumulated monitor operation time 7 RESET Reset 8 LAMP ERROR RESET Reset LAMP ERROR

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

3 [N358MAIN]

1 N358 ALL ADJ (INPUT1) CVBS and TUNER signal level adjustment

2 N358 ALL ADJ (INPUT2)

3 N358 MAIN ADJ (INPUT1) CVBS signal level adjustment

4 N358 MAIN ADJ (INPUT2)

5 TUNER DAC ADJ TUNER signal level adjustment

6VCOM ADJ

7 N358 CONTRAST A_GAIN

8 N358 CONTRAST D_GAIN

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

4 [TUNER TEST]

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

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

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

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

5 INSPECT USB TERM

6 HDMI CEC TEST

5 [COMP15KMAIN]

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

2 COMP15K ADJ (INPUT3)

3 COMP15K Y A_GAIN

4 COMP15K Cb A_GAIN

5 COMP15K Cr A_GAIN

6 COMP15K Y D_GAIN

7 COMP15K Cb D_GAIN

8 COMP15K Cr D_GAIN

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

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

6 [HDTV]

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

2 COMP33K ADJ (INPUT3)

3 COMP33K Y A_GAIN

4 COMP33K Cb A_GAIN

5 COMP33K Cr A_GAIN

6 COMP33K Y D_GAIN

7 COMP33K Cb D_GAIN

8 COMP33K Cr D_GAIN

9 COMP33K Y OFFSET Y OFFSET adjustment value 10 COMP33K Cb OFFSET Cb OFFSET adjustment value 11 COMP33K Cr OFFSET Cr OFFSET adjustment value

7 [ANALOG RGB]

1 ANALOG RGB ADJ Analog RGB picture level adjustment

2 R A-GAIN

3 G A-GAIN

4 B A-GAIN

5 R D-GAIN

6 G D-GAIN

7 B D-GAIN

8R OFFSET

9 G OFFSET 10 B OFFSET

8 [M GAMMA IN]

1 LEV1 Standard value 1 Adjustment gradation setting.

2 LEV2 Standard value 2

3 LEV3 Standard value 3

4 LEV4 Standard value 4

5 LEV5 Standard value 5

6 LEV6 Standard value 6

9 [M GAMMA R1]

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

2 MG1G WB adjustment Point 1, G adjustment value

3 MG1B WB adjustment Point 1, B adjustment value

4 MG2R WB adjustment Point 2, R adjustment value

5 MG2G WB adjustment Point 2, G adjustment value

6 MG2B WB adjustment Point 2, B adjustment value

7 MG3R WB adjustment Point 3, R adjustment value

8 MG3G WB adjustment Point 3, G adjustment value

9 MG3B WB adjustment Point 3, B adjustment value

10 [M GAMMA R4]

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

2 MG4G WB adjustment Point 4, G adjustment value

3 MG4B WB adjustment Point 4, B adjustment value

4 MG5R WB adjustment Point 5, R adjustment value

5 MG5G WB adjustment Point 5, G adjustment value

6 MG5B WB adjustment Point 5, B adjustment value

7 MG6R WB adjustment Point 6, R adjustment value

8 MG6G WB adjustment Point 6, G adjustment value

9 MG6B WB adjustment Point 6, B adjustment value

11 [SOUND 1]

1 Audio Switch

2 Flat Mode

3 ADC Volume 1

4 ADC Volume 2

5 ADC Volume 3

6 ADC Volume 4

7 ADC Volume 5

8 ADC Volume 6

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

12 [SOUND 2]

1 Lip Sync LR

2 Lip Sync Monitor

3 Lip Sync SW

4 LR Func Vol AIN (2ch)

5 LR Func Vol HDMI (2ch)

6 LR Func Vol ATV (2ch)

7 LR Func Vol DTV (2ch)

8 Input Trim (2ch)

13 [SOUND 3]

1 PEQ1 F0

2 PEQ1 Q

3 PEQ1 Gain

4 PEQ1 Gain Limit

5 PEQ1 Fade Time

6 PEQ2 F0

7 PEQ2 Q

8 PEQ2 Gain

9 PEQ2 Gain Limit 10 PEQ2 Fade Time

14 [SOUND 4]

1 PEQ3 F0

2 PEQ3 Q

3 PEQ3 Gain

4 PEQ3 Gain Limit

5 PEQ3 Fade Time

6 PEQ4 F0

7 PEQ4 Q

8 PEQ4 Gain

9 PEQ4 Gain Limit 10 PEQ4 Fade Time

15 [SOUND 5]

1 PEQ5 F0

2 PEQ5 Q

3 PEQ5 Gain

4 PEQ5 Gain Limit

5 PEQ5 Fade Time

6 PEQ6 F0

7 PEQ6 Q

8 PEQ6 Gain

9 PEQ6 Gain Limit 10 PEQ6 Fade Time

16 [SOUND 6]

1 PEQ7 F0

2 PEQ7 Q

3 PEQ7 Gain

4 PEQ7 Gain Limit

5 PEQ7 Fade Time

6 Subsonic Filter

17 [SOUND 7]

1 Output Trim

2 Clipper

3 Sub Volume Default

4 Sub Volume SH Bass

5 Mon Func Vol AIN

6 Mon Func Vol HDMI

7 Mon Func Vol ATV

8 Mon Func Vol DTV

9 SW Func Vol AIN 10 SW Func Vol HDMI 11 SW Func Vol ATV 12 SW Func Vol DTV

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

18 [SOUND 8]

1 BE ATT

2 BE G Limit

3 Bass Center ATT

4Bass Vol 0 MIN

5Bass Vol 60 MIN

6 Bass Vol 60 Center

7Bass Vol 0 MAX

8Bass Vol 60 MAX

19 [SOUND 9]

1 Treble Center ATT

2 Treble Vol 0 MIN

3 Treble Vol 60 MIN

4 Treble Vol 60 Center

5 Treble Vol 0 MAX

6 Treble Vol 60 MAX

7 VS Path

8 VS Option

9 VS SP Interval 10 VS Width 11 VS Input Gain (2ch)

20 [SOUND 10]

1Bass AGC

2 Bass Harmonics

3 Bass LPF Fc

4Bass HPF Fc

5Bass AGC Max

6Bass AGC Min

7 Bass AGC Attack Time

8 Bass AGC Release Time

9 Bass AGC Threshold 10 Bass AGC HPF F0 11 Bass Harmonics Level 12 Bass Harmonics LPF F 13 Bass Harmonics HPF F

21 [M PWM]

1 PANNEL SELECT

2PWM

3PWN FREQ

4 PWM DUTY

5OSC FREQ

6 OSC DUTY

22 [M BRI DA1]

1 BRIGHTNESS DA0

2 BRIGHTNESS DA1

3 BRIGHTNESS DA2

4 BRIGHTNESS DA3

5 BRIGHTNESS DA4

6 BRIGHTNESS DA5

7 BRIGHTNESS DA6

8 BRIGHTNESS DA7

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

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

23 [M BRI DA2]

1 BRIGHTNESS DA12

2 BRIGHTNESS DA13

3 BRIGHTNESS DA14

4 BRIGHTNESS DA15

5 BRIGHTNESS DA16

6 BRIGHTNESS DA17

7 BRIGHTNESS DA18

8 BRIGHTNESS DA19

9 BRIGHTNESS DA20 10 BRIGHTNESS DA21 11 BRIGHTNESS DA22

24 [M BRI DA3]

1 BRIGHTNESS DA23

2 BRIGHTNESS DA24

3 BRIGHTNESS DA25

4 BRIGHTNESS DA26

5 BRIGHTNESS DA27

6 BRIGHTNESS DA28

7 BRIGHTNESS DA29

8 BRIGHTNESS DA30

9 BRIGHTNESS DA31 10 BRIGHTNESS DA32

25 [M ADL1]

1 OPC33 ADLEVEL 0

2 OPC33 ADLEVEL 1

3 OPC33 ADLEVEL 2

4 OPC33 ADLEVEL 3

5 OPC33 ADLEVEL 4

6 OPC33 ADLEVEL 5

7 OPC33 ADLEVEL 6

8 OPC33 ADLEVEL 7

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

26 [M ADL2]

1 OPC33 ADLEVEL 12

2 OPC33 ADLEVEL 13

3 OPC33 ADLEVEL 14

4 OPC33 ADLEVEL 15

5 OPC33 ADLEVEL 16

6 OPC33 ADLEVEL 17

7 OPC33 ADLEVEL 18

8 OPC33 ADLEVEL 19

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

27 [M ADL3]

1 OPC33 ADLEVEL 23

2 OPC33 ADLEVEL 24

3 OPC33 ADLEVEL 25

4 OPC33 ADLEVEL 26

5 OPC33 ADLEVEL 27

6 OPC33 ADLEVEL 28

7 OPC33 ADLEVEL 29

8 OPC33 ADLEVEL 30

9 OPC33 ADLEVEL 31

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

28 [M V6THE]

1V6 OS THERMO 1

2V6 OS THERMO 2

3V6 OS THERMO 3

4V6 OS THERMO 4

5V6 OS THERMO 5

6V6 OS THERMO 6

7V6 OS THERMO 7

29 [M V5THE]

1V5 OS THERMO 1

2V5 OS THERMO 2

3V5 OS THERMO 3

4V5 OS THERMO 4

5V5 OS THERMO 5

6V5 OS THERMO 6

7V5 OS THERMO 7

30 [M TEMP]

1BL TEMP1

2BL TEMP2

3BL TDUTY

31 [M EEP SET]

1 MONITOR TIME OUT

2 MONITOR MAX TEMP

3 MONITOR ERROR CAUSE RESET

32 [M TESTPTRN]

1 LCD TEST PATTERN

2 TV TEST PATTERN 1

3 TV TEST PATTERN 2

33 [MEMORY CLR]

1 KEY LOCK (1217)

2 KOUTEI AREA ALL CLEAR

3 A MODE AREA CLEAR

4 BACKUP AREA CLEAR

5 B MODE AREA CLEAR

6 EXECUTION

34 [ETC]

1 EEP SAVE Writing setting values to EEPROM.

2 EEP RECOVER Reading setting values from EEPROM.

3 STANDBY CAUSE RESET Reset stand by cause.

4 SETTING FOR ADJ

5 PANEL SIZE

6. Special features

* STANDBY CAUSE (Page 1/34)

Display of a cause (code) of the last standby

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

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

* EEP SAVE (Page 34/34)

Storage of EEP adjustment value

* EEP RECOVER (Page 34/34)

Retrieval of EEP adjustment value from storage area

5 – 11

7. Code list for Standby Cause

Code Indication Description

1 RC_STNBY /* Standby set by remote control */ 2 NO_OPERT /* Off caused by no operation */ 3 NO_SIGNA /* Off caused by no signal */ 4 PC_MODE1 /* Set by the PC power management mode 1 */ 5 PC_MODE2 /* Set by the PC power management mode 2 */ 6 SLEEP_TM /* Set by off timer */ 8 OFF_232C /* Set by the command from RS232C */ 9 AVC_TACT /* Set by the front switch at the AVC center */ A BSBOOKED /* The pre-set time has passed since TV was turned on from standby by the BS timer. */

B E_MONIPW /* Monitor main power failure detected */ 10 E_CCKMVT /* Abnormal voltage of CCKM line detected */ 11 OUT_OF_R “/* While a PC display is on, unspecified input continued long time. */” 12 E_NOMONI /* Incompatible monitor is connected to the AVC center. */ 14 E_AVCFAN /* Fan failure at the AVC center */ 15 E_BSSUBM /* Communication failure with the BS sub microcomputer (Not used) */ 16 E_CVICIC /* CVIC failure */ 17 E_AVCTMP /* Abnormal temperature at the AVC center */ 18 E_1BITAU /* 1Bit-AMP failure */

1A E_MONITR /* Monitor problem detected */ 1B E_FNLOCK /* Fan lock for North America */

40 E_DSDEV /* Failure in Digital Standby */

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8. Signal adjustment

8.1. Checking the Device

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

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

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

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

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

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

8.2. Process mode

Adjustment item Adjustment conditions Adjustment procedure

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

8.3. Composite N358 signal/tuner adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Setting N358 signal

US-10ch

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

[Video input signal] [US-10ch]

75% Color saturation

100% white 0% black 100% white

2 Automatic adjust-

ment execution

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

8.4. Component 15K signal adjustment

Adjustment item Adjustment conditions Adjustment procedure

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

480i 100% color bar

0% black

2 Automatic adjust-

ment execution

100% Color saturation

100% white

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

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