Sharp LC-32DH65, LC-37DH65 Service manual

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LC-32DH65E/S, LC-37DH65E/S

SERVICE MANUAL

No. S98Q5LC32H65E

LCD COLOUR TELEVISION

LC-32DH65E/S

MODELS

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

LC-37DH65E/S

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

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

Precautions for using lead-free solder ...............ii

End of life disposal ............................................ iii

CHAPTER 1. OPERATION MANUAL

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

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

[3] DIMENSIONS ................................................ 1-7

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

(LC-32DH65E, LC-32DH65S) ........................ 2-1

[2] REMOVING OF MAJOR PARTS

(LC-37DH65E, LC-37DH65S) ....................... 2-7

CHAPTER 3. ADJUSTMENT PROCEDURE

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

CHAPTER 4. TROUBLESHOOTING TABLE

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

[2] LED flashing specification at the time of the

error .............................................................4-17

CHAPTER 5. BLOCK DIAGRAM/WIRING DIAGRAM

[1] MAIN BLOCK DIAGRAM............................... 5-1

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

[3] OVERALL WIRING DIAGRAM ......................5-5

CHAPTER 6. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD........6-1

[2] LED UNIT PRINTED WIRING BOARD .........6-5

CHAPTER 7. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM............................................................7-1

[2] SCHEMATIC DIAGRAM ................................7-2

Parts Guide

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-32DH65E/S, LC-37DH65E/S

LC32DH65E

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 CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

• 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 1.05 V peak (this corresponds to 0.7 mA peak AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

F7101 (3.15A/250V) F7102 (1A/250V) F7103 (3.15A/250V)

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 220~240 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

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.

1.5k ohm 10W

0.15µF

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

LC-32DH65E/S, LC-37DH65E/S

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:

L Fa

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

L F a/a

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

Part No. Description Code

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

LC-32DH65E/S, LC-37DH65E/S

End of life disposal

A. Information on Disposal for Users (private households)

1. In the European Union

Attention: If you want to dispose of this equipment, please do not use the ordinary dust bin!

Used electrical and electronic equipment must be treated separately and in accordance with legislation that requires proper treatment, recovery and recycling of used electrical and electronic equipment. Following the implementation by member states, private households within the EU states may return their used

Attention: Your product is marked with this symbol. It means that used electrical and electronic products should not be mixed with general household waste. There is a separate collection system for these products.

electrical and electronic equipment to designated collection facilities free of charge*. In some countries* your local retailer may also take back your old product free of charge if you purchase a similar new one. *) Please contact your local authority for further details.

If your used electrical or electronic equipment has batteries or accumulators, please dispose of these separately beforehand according to local requirements.

By disposing of this product correctly you will help ensure that the waste undergoes the necessary treatment, recovery and recycling and thus prevent potential negative effects on the environment and human health which could otherwise arise due to inappropriate waste handling.

2. In other Countries outside the EU

If you wish to discard this product, please contact your local authorities and ask for the correct method of disposal.

For Switzerland: Used electrical or electronic equipment can be returned free of charge to the dealer, even if you don’t purchase a new product. Further collection facilities are listed on the homepage of www.swico.ch or www.sens.ch.

B. Information on Disposal for Business Users

1. In the European Union

If the product is used for business purposes and you want to discard it:

Please contact your SHARP dealer who will inform you about the take-back of the product. You might be charged for the costs arising from take-back and recycling. Small products (and small amounts) might be taken back by your local collection facilities.

For Spain: Please contact the established collection system or your local authority for take-back of your used products.

2. In other Countries outside the EU

If you wish to discard of this product, please contact your local authorities and ask for the correct method of disposal.

Information on Battery Disposal

For EU: The crossed-out wheeled bin implies that used batteries should not be put to the general household waste! There is a separate collection system for used batteries, to allow proper treatment and recycling in accordance with legislation. Please contact your local authority for details on the collection and recycling schemes.

For Switzerland: The used battery is to be returned to the selling point.

For other non-EU countries: Please contact your local authority for correct method of disposal of the used battery.

iii

LC32DH65E

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS

LC-32DH65E/S, LC-37DH65E/S

Service Manual

Item

LCD panel

Resolution

Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60

TV Function TV-Standard Analogue CCIR (B/G, I, D/K, L/L’)

Digital DVB-T (2K/8K OFDM)

Receiving Channel

TV-Tuning System Auto Preset 999 ch: non-Nordic / 9999 ch: Nordic (ATV: 99 ch), Auto Label, Auto Sort

STEREO/BILINGUAL NICAM/A2

Brightness 450 cd/m

Backlight life 60,000 hours (when “Backlight” is set to the default position)

Viewing angles H: 176°, V: 176°

Audio amplifier

Speaker

Terminals Antenna

RS-232C D-Sub 9 pin male connector

EXT1 SCART (AV input, Y/C input, RGB input, TV output)

EXT2 SCART (AV input/monitor output, Y/C input, AV Link, RGB input)

EXT3 COMPONENT IN: Y/P

EXT4 15 pin mini D-sub, Ø 3.5 mm jack*

HDMI1 (EXT5) HDMI

HDMI2 (EXT6) HDMI, Ø 3.5 mm jack*

HDMI3 (EXT7) HDMI

EXT8 RCA pin (AV input)

USB USB 2.0

DIGITAL AUDIO OUTPUT Optical S/PDIF Digital audio output

C. I. (Common Interface) EN50221, R206001

OUTPUT RCA pin (AUDIO R/L)

Headphones Ø 3.5 mm jack (Audio output)

OSD language

Power Requirement AC 220–240 V, 50 Hz

Power Consumption (Method IEC62087)

Weight 11.5 kg (Without stand), 13.5 kg (With stand)

Operating temperature

The HDMI2 and EXT4 terminals can both use the same audio input terminal.

As a part of our 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.

VHF/UHF E2–E69 ch, F2–F10 ch, I21–I69 ch, IR A–IR J ch (Digital: IR A ch–E69 ch)

CATV Hyper-band, S1–S41 ch

32" LCD COLOUR TV, Model: LC-32DH65E, LC-32DH65S

32" Advanced Super View & BLACK TFT LCD 37" Advanced Super View & BLACK TFT LCD

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

10 W 2

(40 mm 110 mm) 2

UHF/VHF 75

Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish, Swedish, Turkish, Ukrainian

LC-32DH65E LC-32DH65S

0°Cto+40°C

Ω Din type (Analogue & Digital)

B(CB)/PR(CR), RCA pin (AUDIO R/L)

142 W (0.5 W Standby)

37" LCD COLOUR TV, Model: LC-37DH65E, LC-37DH65S

LC-37DH65E LC-37DH65S

14.5 kg (Without stand), 16.5 kg (With stand)

172 W (0.5 W Standby)

NOTE

Refer to the inside back cover for dimensional drawings.

•

Optional accessory

The listed optional accessories are available for this LCD colour TV. Please purchase them at your nearest shop.

Additional optional accessories may be available in the near

• future. When purchasing, please read the newest catalogue for compatibility and check the availability.

1 – 1

No. Part name Part number

Wall mount bracket (LC-32DH65E, LC-32DH65S,

AN-37AG5

LC-37DH65E, LC-37DH65S)

LC-32DH65E/S, LC-37DH65E/S

[2] OPERATION MANUAL

Remote control unit

(Standby/On)

Buttons for useful operations

(Teletext)

ATV: Display analogue teletext

DTV: Select MHEG-5 and teletext for DTV.

(Reveal hidden Teletext)

(Subtitle)

Switch subtitle languages on/off.

(Freeze/Hold)

Press to freeze a moving image on the screen. Teletext: Stop updating teletext pages automatically or release the hold mode.

(Subpage)

(Top/Bottom/Full)

Set the area of magnification in teletext mode.

0–9 numeric buttons

Set the channel. Enter desired numbers. Set the page in teletext mode.

When the five Nordic countries

• (Sweden, Norway, Finland, Denmark, or Iceland) are selected in the country setting from “Auto Installation”, DTVservices are four digits. When another country is selected, DTV services are three digits.

(Flashback)

Press to return to the previously selected channel or external input.

DTV

Press to access digital TV mode.

ATV

Press to access conventional analogue TV mode.

(Sound mode)

Select a sound multiplex mode

/ (Volume)

Increase/decrease TV volume.

(Mute)

TV sound on/off.

(WIDE MODE)

Select a wide mode.

AV MODE

Select a video setting.

4 5

6 7

8 9

/ / / (Cursor)

Select a desired item on the setting screen.

Execute a command within the “MENU” screen. ATV/DTV: Display the programme list when no other “MENU” screen is running.

16 17

18 19

20 21

END

Exit the “MENU” screen.

R/G/Y/B (Colour) buttons

The coloured buttons are correspondingly used to select the coloured items on the screen (e.g. EPG, MHEG-5, Teletext).

(INPUT SOURCE)

Select an input source.

EPG

DTV: Display the EPG screen.

RADIO

DTV: Switch between Radio and Data mode.

When only data broadcasting (no

• radio broadcasting) is transmitted by DVB, the radio broadcasting will be skipped.

P. INFO

Press to display programme information which is transmitted through digital video broadcasting in the upper left corner of the screen (DTV only).

Select the TV channel.

(Display information)

Press to display the station information (channel number, signal, etc.) in the upper right corner of the screen.

SLEEP

Press to schedule a time for the TV to automatically standby.

“MENU” screen on/off.

(Return)

Return to the previous “MENU” screen.

ACTION (Action Mode)

This key does not work on this model.

AQUOS LINK buttons

If external equipment such as a AQUOS BD Player is connected via HDMI cables and is AQUOS LINK compatible, you can use these AQUOS LINK buttons.

1 – 2

TV (Front view)

LC-32DH65E/S, LC-37DH65E/S

Remote control sensor

TV (Rear view)

4 56

OPC indicator

OPC sensor

(Standby/On) indicator

7 8 9 10

WARNING:

Excessive sound pressure from earphones and headphones can cause hearing loss.

EXT4 (ANALOGUE RGB/AUDIO)

terminals* HDMI1 (HDMI) terminal

HDMI2 (HDMI/AUDIO) terminals*

EXT3 (COMPONENT/AUDIO)

terminals OUTPUT (AUDIO) terminals

5 6

DIGITAL AUDIO OUTPUT terminal

Antenna terminal

RS-232C terminal

EXT1 (RGB) terminal

EXT2 (RGB) terminal

COMMON INTERFACE slot

EXT8 terminals

HDMI3 (HDMI) terminal

USB terminal

Headphones

AC INPUT terminal

1 – 3

(Power) button

MENU button

(INPUT SOURCE)

button

/ Programme (channel) buttons

Vo l u m e

buttons

The HDMI2 and EXT4 terminals

can both use the same audio input terminal. However, the proper item must be selected in the “PC Audio Select” menu.

LC-32DH65E/S, LC-37DH65E/S

Attaching the stand unit

•

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

•

Before performing work, spread cushioning over the surface on which you will be laying the TV. This will prevent it from being damaged.

CAUTION

•

Attach the stand in the correct direction.

•

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

Confirm that there are eight screws with the

stand unit.

Attach the supporting post for the stand unit

onto the base using the four screws with the screw driver (supplied) as shown.

Supporting post

Inserting the stand.

Insert the stand into the openings on the bottom of the TV (Hold the stand so it will not drop from the edge of the base area).

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

Soft cushion

NOTE

To detach the stand unit, perform the steps in reverse

• order.

1 – 4

LC-32DH65E/S, LC-37DH65E/S

Inserting the batteries

Before using the TV for the first time, insert two supplied “AAA” size alkaline batteries. When the batteries become depleted and the remote control unit fails to operate, replace the batteries with new “AAA” size batteries.

Open the battery cover.

Insert two supplied “AAA” size alkaline batteries.

Place batteries with their terminals corresponding to the

• (+) and (-) indications in the battery compartment.

Close the battery cover.

CAUTION

Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.

Do not mix batteries of different types. Different types of batteries have different characteristics.

• Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause

• chemical leakage in old batteries. Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you

• find any chemical leakage, wipe thoroughly with a cloth. The batteries supplied with this product may have a shorter life expectancy due to storage conditions.

• If you will not be using the remote control unit for an extended period of time, remove the batteries from it.

• When replacing the batteries, use alkaline batteries instead of zinc-carbon ones.

•

Note on disposing batteries:

The batteries provided contain no harmful materials such as cadmium, lead or mercury. Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial businesses.

Using the remote control unit

Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control unit and sensor may prevent proper operation.

30° 30°

Remote control sensor

Cautions regarding the remote control unit

•

Do not expose the remote control unit to shock. In addition, do not expose the remote control unit to liquids, and do not place in an area with high humidity.

•

Do not install or place the remote control unit under direct sunlight. The heat may cause deformation of the unit. The remote control unit may not work properly if the remote control sensor of

• the TV is under direct sunlight or strong lighting. In such cases, change the angle of the lighting or the TV, or operate the remote control unit closer to the remote control sensor.

1 – 5

LC-32DH65E/S, LC-37DH65E/S

Troubleshooting

Problem Possible Solution

No power.•

The TV cannot be operated.•

Remote control unit does not operate.•

Picture is cut off.• Is the image position correct?

Strange colour, light colour, or dark

• Adjust the picture tone. colour, or colour misalignment.

Power is suddenly turned off.• The TV’s internal temperature has increased.

No picture.• Are connections to external equipment correct?

No sound.• Is the volume too low?

The TV sometimes makes a cracking

• This is not a malfunction. This happens when the cabinet slightly expands and contracts sound.

Check if you pressed B on the remote control unit.

• If the indicator on the TV lights up red, press B. Is the AC cord disconnected?

• Check if you pressed a on the TV.

•

External influences such as lightning, static electricity, etc., may cause improper operation. In this

• case, operate the TV after first turning off the power, or unplugging the AC cord and re-plugging it in after one or two 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 illuminating to the remote control sensor?

•

• Are screen mode adjustments (WIDE MODE) such as picture size made correctly?

•

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

• Check the “Colour System” setting.

•

• Remove any objects blocking the vent or clean. Is the “Sleep Timer” set? Select “Off” from the “Sleep Timer” menu.

• Is “No Signal Off” or “No Operation Off” activated?

•

• Is the input signal type selected correctly after connection?

• Is the correct input source selected?

• Is a non-compatible signal being input?

• Is the picture adjustment correct?

• Is the antenna connected properly?

• Is “On” selected in “Audio Only”?

•

• Make sure that headphones are not connected.

• Check if you pressed e on the remote control unit.

• Is the proper item selected in the “PC Audio Select” menu when connecting devices to the

• HDMI2 terminal or the EXT4 terminal?

• according to changes in temperature. This does not affect the TV’s performance.

Cautions regarding use in high and low temperature environments

•

When the TV 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 TV will recover when the temperature returns to normal.

•

Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storagetemperature:+5°Cto+35°C.

Information on the software license for this product

Software composition

The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by third parties.

Software developed by SHARP and open source software

The copyrights for the software components and various relevant documents included with this product that were developed or written by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also makes use of freely distributed software and software components whose copyrights are held by third parties. These include software components covered by a GNU General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other license agreement.

Obtaining source code

Some of the open source software licensors require the distributor to provide the source code with the executable software components. GPL and LGPL include similar requirements. For information on obtaining the source code for the open source software and for obtaining the GPL, LGPL, and other license agreement information, visit the following website: http://www.sharp-eu.com/gpl/ We are unable to answer any questions about the source code for the open source software. The source code for the software components whose copyrights are held by SHARP is not distributed.

Acknowledgements

The following open source software components are included in this product:

• linux kernel • busy box • uClibc • zlib • libpng • libjpeg

1 – 6

[3] DIMENSIONS

LC-32DH65E/S, LC-37DH65E/S

Unit: mm

( ) : LC-32DH65E/32DH65S

[ ] : LC-37DH65E/37DH65S

: LC-32DH65E/32DH65S

LC-37DH65E/37DH65S

400.0 400,0

(561.0) / [627.0]

(561,0) / [627,0]

(519.0) / [585.0]

(519,0) / [585,0]

42.0

(110.0)

(100.0)

(774.0) / [902.0] (774,0) / [902,0]

(699.2) / [824.4] (699,2) / [824,4]

200.0 200,0

(393.8) / [463.8]

(393,8) / [463,8]

(320.9) / [355.9]

(320,9) / [355,9]

(73.2) (73,2)

[84.7] [84,7]

(224.0) / [247.0] (224,0) / [247,0]

96.8 96,8

200.0

200,0

15°

: LC-32DH65E/32DH65S : LC-37DH65E/37DH65S

15°

1 – 7

LC-32DH65E/S, LC-37DH65E/S

LC32DH65E

CHAPTER 2. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-32DH65E, LC-32DH65S)

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

2. Remove the 10 lock screws , 1 lock screws and detach the Rear Cabinet.

Rear Cabinet

Front Cabinet

Stand Unit

2 – 1

LC-32DH65E/S, LC-37DH65E/S

3. Remove the 7 lock screws , 2 lock screws , 2 lock screws , 2 lock screws , 1 lock screw and detach the Full Shield.

4. Disconnect all the connectors from all the PWBs.

2 3 4

Full Shield

MAIN Unit

[LB]

[PD]

[LW]

[LP]

[SP][RA]

LCD Control Unit

[LW]

[LB]

[PD]

POWER/ INVERTER Unit

2 – 2

LC-32DH65E/S, LC-37DH65E/S

5. Remove the Speaker (L) , (R) .

6. Remove the 4 lock screws , the 3 hooks and detach the POWER/INVETER Unit.

7. Remove the 7 lock screws , the 1 lock screw and detach the MAIN Unit.

8. Remove the 1 lock screws , and detach the Control Cover Ass’y from the MAIN Unit.

MAIN Unit

Control Cover Ass'y

POWER/ INVERTER Unit

POWER PWB Holder

2 Speaker(L)1

Speaker(R)

2 – 3

LC-32DH65E/S, LC-37DH65E/S

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

10.Remove the 2 lock screws 4 lock screws and detach the Stand Angle.

11.Remove the LED Unit.

LED Unit

Stand Angle

Bottom Cover

2 – 4

LC-32DH65E/S, LC-37DH65E/S

12.Remove the 2 lock screws , 4 hooks and detach the LCD Panel Module.

13.Remove the 4 lock screws , and detach the LCD Holder A, B.

14.Remove the 6 lock screws and detach the Panel Support Angle.

Panel Support Angle Panel Support Angle

Hook

LCD Holder B

Hook

LCD Holder A

Hook

LCD Panel Module

LCD Holder BLCD Holder A

Hook

2 – 5

LC-32DH65E/S, LC-37DH65E/S

15.Remove the 10 lock screws 10 lock screws , 5 lock screws and Bezel Ass’y.

16.Detach the TFT LCD Panel, Lens Sheet and Diffusion Plate.

17.Detach the Panel Chassis Ass’y Lamp Holder (L), Lamp holder (R) and the Lamp Unit.

18.Remove the 4 lock screws and GND-PWBs

2 3

Back Light Chassis Ass'y

Lamp Holder(L)

Diffusion Plate

Lens Sheet

TFT LCD PANEL

Lamp Socket

GND-PWB

Lamp Unit

GND-PWB

Lamp Holder(R)

Bezel Ass'y

Panel Chassis Ass'y

2 – 6

LC-32DH65E/S, LC-37DH65E/S

[2] REMOVING OF MAJOR PARTS (LC-37DH65E, LC-37DH65S)

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

2. Remove the 4 lock screws , 7 lock screws , 1 lock screw and detach the Rear Cabinet.

Rear Cabinet

Front Cabinet

Stand Unit

2 – 7

LC-32DH65E/S, LC-37DH65E/S

3. Remove the 7 lock screws , 2 lock screws , 2 lock screws , 2 lock screws , 1 lock screw and detach the Full Shield.

4. Disconnect all the connectors from all the PWBs.

2 3 4

INVERTER unit

Full Shield

MAIN unit

POWER unit

[BtoB]

[LB]

[PD]

[LW]

[LP]

[SP][RA]

[LP]

[PD]

[LW]

LCD Control unit

2 – 8

LC-32DH65E/S, LC-37DH65E/S

5. Remove the 1 lock screw 1 lock screw and detach the Speaker (L) , (R) .

6. Remove the 2 lock screws , the 4 hooks and detach the INVETER Unit.

7. Remove the 3 lock screws , the 2 hooks and detach the POWER Unit.

8. Remove the 7 lock screws , 1 lock screw and detach the MAIN Unit.

9. Remove the 1 lock screw and detach the Control Cover Ass’y from the MAIN Unit.

MAIN Unit

Control Cover Ass'y

POWER Unit

POWER PWB Holder

INVERTER Unit

Speaker(R) Speaker(L)

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LC-32DH65E/S, LC-37DH65E/S

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

11.Remove the 2 lock screws 4 lock screws and detach the Stand Angle.

12.Remove the LED Unit.

LED Unit

Stand Angle

Bottom Cover

2 – 10

LC-32DH65E/S, LC-37DH65E/S

13.Remove the 6 lock screws , and detach the Panel Support Angle.

14.Remove the 6 lock screws , 4 hooks and detach the LCD Panel Module.

Hook

Panel Support Angle

LCD Panel Module

Hook

2 – 11

LC-32DH65E/S, LC-37DH65E/S

15.Remove the 6 lock screws , 14 lock screws , 8 lock screws and detach the Bezel Ass’y.

16.Detach the TFT LCD Panel, Lens Sheet and Diffusion Pane.

17.Detach the Panel Chassis Ass’y, Lamp Holder (L), Lamp Holder (R) and the Lamp Unit.

18.Remove the 4 lock screws and detach GND-PWBs.

Back Light Chassis Ass'y

Lamp Holder(L)

Diffusion Plate

Lens Sheet

TFT LCD PANEL

Lamp Socket

Lamp Unit

GND-PWB1

GND-PWB2

Lamp Holder(R)

Panel Chassis Ass'y

Bezel Ass'y

2 – 12

LC-32DH65E/S, LC-37DH65E/S

LC32DH65E

CHAPTER 3. ADJUSTMENT PROCEDURE

Service Manual

[1] ADJUSTMENT PROCEDURE

1. Adjustment method after PWB and/or IC replacement due to repair

The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.

1. Procure the following units in order to replace the main unit, IC8101, IC5001, or IC5003.

MAIN UNIT: DUNTKE685FM02 (LC-32DH65E/S)

DUNTKE685FM04 (LC-37DH65E/S)

NOTE: [Caution when replacing ICs in the main unit (IC1504)]

The above ICs are EEPROMs storing the EDID data of HDMI. Before replacing the relevant part, procure the following parts in which the data have been rewritten.

IC1504 RH-IXC442WJN1S EDID (HDMI) IC1503 RH-IXC697WJQZS EDID (PC)

2. After replacing the LCD panel or LCD control PWB, check PANEL_SIZE in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys / and P / of R/C to select the item [PANEL_SIZE] on the page 16/16.

3) Verify that the panel size is displayed.

4) If the size doesn't match, select the values of the panel size with the Vol / keys.

5) After selection in Step 4), press the OK key, and it is completed with OK displayed.

3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys / and P / of R/C to select the item [VCOM ADJ] on the page 10/16.

3) Press the OK key to verify that the adjustment pattern is displayed.

4) Use the +/- keys of VOL of R/C to adjust the flicker in the center of the screen to minimum.

5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.

3 – 1

LC-32DH65E/S, LC-37DH65E/S

2. Entering and exiting the adjustment process mode

1. Unplug the AC power cord of running TV set to force off the power.

2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power.

The letter “K” appears on the screen.

3. Next, hold down the “VOL (-)” and “P ( )” keys on the set at once.

Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode.

If 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 power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)

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

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

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

1. key operation

Remote controller key Main unit key Function

P ( / )

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

VOL (+/-) VOL (+/-) Changing a selected item setting (+1/-1) Cursor ( / )

— Turning a page (PREVIOUS / NEXT) Cursor (</>) — Changing a selected line setting (+10/-10) INPUT INPUT Input source switching (toggle switching) (TV→EXT1~8) RETURN — Returning to a present page. OK — Executing a function.

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

4. Description of display

(1) Page/ of present number of total pages (4) Inducing display

(2) Input that has been selected now

1/16 INPUT1 AUTO EURO 37E_DH65

MAIN Version BOOT Version Monitor Version T-CON Version/H.264 Version CPLD Version EQ DATA CHECKSUM LAMP ERROR MONITOR ERR CAUSE NORMAL STANDBY CAUSE ERROR STANDBY CAUSE

(3) Present colour system

1.00 (E 2008/07/10 D)

1.0

f4 ROM

0 11 11 11 11 0

1) 0 2) 0 3) 0

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

4) 0 5) 0

0H 0M 0H 0M

(5) Model name

(6) Item name (7) Parameter

No. Description Display specification

(1) Page of present number of total pages 2char/2char Decimal Number mark. (2) Input that has been selected now TV/ EXT1/ EXT2/ EXT3/ EXT4/ HDMI1/ HDMI2/ HDMI3/ EXT8 (3) Present colour system NTSC/ PAL/ SECAM/ COMP15K/ COMP33K/ COMP45K/COMP28K/ COMP31K (4) Inducing display EUROPE/ RUSSIA/ SWEDEN (5) Model name MODEL NAME (6) Item name Max. 30 char (7) Parameter Max. 60 char

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LC-32DH65E/S, LC-37DH65E/S

5. 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.)

1/16 1 MAIN Version Main software version

2 BOOT Version BOOT Version. 3 Monitor Version Monitor software version 4 T-CON Version/H.264 Version T-CON Version/H.264 Version 5 CPLD Version CPLD Version. 6 EQ DATA CHECKSUM Audio data checksum. 7 LAMP ERROR Number of termination due to lamp error. 8 MONITOR ERR CAUSE Last error standby cause. 9 NORMAL STANDBY CAUSE Situation that became standby at the end. (Excluding the error)

10 ERROR STANDBY CAUSE [1] 00H 00M Error standby cause Total operating time before error.

[2] 00H 00M [3] 00H 00M [4] 00H 00M [5] 00H 00M

2/16 1 INDUSTRY INIT Enter Initialization to factory settings execution.

2 INDUSTRY INIT (-Hotel) OFF Initialization to factory settings execution. (Hotel mode is excluded) 3 HOTEL MODE OFF Hotel mode setting execution. 4 Center Acutime 5H 0M Main operating hours. 5 RESET OFF Main operating hours reset. 6 Backlight Acutime 19H 35M Backlight operating hours. 7 RESET OFF Backlight operating hours reset. 8 LAMP ERROR RESET OFF Lamp error reset.

9 ADJ PARAM SET Enter ADJ PARAM SET 10 VIC XPOS 0 X-coordinate setting for VIC READ 11 VIC YPOS 0 Y-coordinate setting for VIC READ 12 VIC SIGNAL TYPE MAIN Signal type setting for VIC READ

13 VIC READ OFF

3/16 1 RF AGC ADJ Enter RF-AGC auto adjustment execution

2 TUNER ADJ Enter TUNER auto adjustment execution

3 PAL+TUNER ADJ Enter PAL TUNER auto adjustment execution

4 RF AGC ADJ (CA-8CH) Enter RF-AGC auto adjustment execution (CA-8CH)

5 TUNER ADJ (CA-8CH) Enter TUNER auto adjustment execution (CA-8CH)

6 PAL+TUNER ADJ (CA-8CH) Enter PAL TUNER auto adjustment execution (CA-8CH)

7 RF AGC 16 RF AGC adjustment

8 TUNER DAC 150 TUNER signal level adjustment

9 TUNER CONTRAST OFFSET 0 TUNER signal level adjustment 10 RF AGC READ OFF

4/16 1 PAL ADJ Enter PAL adjustment

2 SECAM ADJ Enter SECAM adjustment

3 N358 ADJ Enter N358 adjustment

4 PAL CONTRAST 130 PAL contrast adjustment

5 SECAM CONTRAST 137 SECAM CONTRAST adjustment

6 N358 CONTRAST 120 N358 CONTRAST adjustment

5/16 1 HDMI CEC TEST Enter CEC test

2 INSPECT USB TERM Enter

3 MONIDATA READ [TEMP/OPC] OFF MONITOR Temperature/OPC Acquisition tool.

4 CAUSE RESET Enter

6/16 1 COMP15K ALL ADJ Enter Component 15K picture level adjustment

2 COMP15K MAIN Y GAIN 194 Y GAIN adjustment value

3 COMP15K MAIN CB GAIN 215 Cb GAIN adjustment value

4 COMP15K MAIN CR GAIN 212 Cr GAIN adjustment value

5 COMP15K Y OFFSET 66 OFFSET adjustment value

6 COMP15K CB OFFSET 512 Cb OFFSET adjustment value

7 COMP15K CR OFFSET 513 Cr OFFSET adjustment value

7/16 1 HDTV ADJ Enter HDTV video level adjustment

2 HDTV Y GAIN 195 HDTV Y GAIN adjustment value

3 HDTV CB GAIN 205 HDTV Cb adjustment value

4 HDTV CR GAIN 203 HDTV Cr adjustment value

5 HDTV Y OFFSET 65 HDTV Y OFFSET adjustment value

6 HDTV CB OFFSET 512 HDTV Cb OFFSET adjustment value

7 HDTV CR OFFSET 512 HDTV Cr OFFSET adjustment value

Picture level acquisition function. (Level appears in green on the upper right)

3 – 3

LC-32DH65E/S, LC-37DH65E/S

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

8/16 1 ANALOG PC ADJ Enter DVI ANALOG video level adjustment

2 R OFFSET 64 R CUTOFF adjustment value

3 G OFFSET 64 G CUTOFF adjustment value

4 B OFFSET 66 B CUTOFF adjustment value

5 R GAIN 193 R DRIVE adjustment value

6 G GAIN 189 G DRIVE adjustment value

7 B GAIN 194 B DRIVE adjustment value

9/16 1 SCART RGB ADJ Enter SCART RGB level adjustment

2 SCART R CUTOFF 65 SCART R CUTOFF adjustment value

3 SCART G CUTOFF 60 SCART G CUTOFF adjustment value

4 SCART B CUTOFF 64 SCART B CUTOFF adjustment value

5 SCART R GAIN 200 SCART R GAIN adjustment value

6 SCART G GAIN 195 SCART G GAIN adjustment value

7 SCART B GAIN 201 SCART B GAIN adjustment value

10/16 1 VCOM ADJ 69

2 LCD LUMA ADJ Enter

3 LCD LUMA UP 26

4 LCD LUMA DOWN 13

11/16 1 DDRA TEST1 Enter

2 DDRA TEST2 Enter

3 DDRB TEST1 Enter

4 DDRB TEST2 Enter

5 DDRB TEST3 Enter

6 FRC ON/OFF Enter

7 SOUSAM DDR BIST Enter

8 SOUSAS DDR BIST Enter

12/16 1 R GAIN (LO) 0

2 G GAIN (LO) 0

3 B GAIN (LO) 0

4 R GAIN (HI) 0

5 G GAIN (HI) 0

6 B GAIN (HI) 0

13/16 1 MONITOR TIME OUT ON

2 MONITOR MAX TEMP 30

3 MONITOR EEP READ/WRITE WRITE

4 MONITOR EEP ADR 0x 0

5 MONITOR EEP DATA 0x 0

14/16 1 LCD TEST PATTERN OFF Pattern with built-in LCD controller display 15/16 1 READ/WRITE READ

2 SLAVE ADDRESS SLAVE0

3 REGISTER ADDRESS 0x 0

0x 0

4WRITE DATA 0x 0

0x 0

5 READ DATA 0x 0

0x 0

16/16 1 EEP SAVE OFF Writing setting values to EEPROM.

2 EEP RECOVER OFF Reading setting values from EEPROM.

3 MONITOR ERROR CAUSE RESET OFF

4 STANDBY CAUSE RESET OFF Reset stand by cause.

5 MODEL NAME D65

6 PANEL SIZE 32

7 PRODUCT EEP ADR 0x 0

8 PRODUCT EEP DATA 0x 0

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LC-32DH65E/S, LC-37DH65E/S

6. Special features

1. NORMAL STANDBY CAUSE (Page 1/16)

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.

2. EEP SAVE (Page 16/16)

Storage of EEP adjustment value

3. EEP RECOVER (Page 16/16)

Retrieval of EEP adjustment value from storage area.

7. Lamp error detection

1. Function

This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.

1) The power is interrupted in about 6 seconds after it is turned on.

(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 300ms and OFF for 1500ms.).

2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).

2. Measures

1) Checking with lamp error detection OFF

Enter the adjustment process mode, referring to 2. Entering and exiting the adjustment process mode.

If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)

Then, you can check the operation to see if the lamp and lamp circuit are in trouble.

2) Resetting the lamp error count

After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is detected five consecutive times, the power cannot be turned on. Using the cursor ( / ) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode service page 2/16. With the cursor (</>) keys, select the [LAMP ERROR RESET] value. Finally press the cursor (OK) eys to reset the value to “0”.

Table of contents of adjustment process mode Page 2/16

INDUSTRY INIT Enter INDUSTRY INIT(-Hotel) OFF HOTEL MODE OFF Center Acutime RESET

5H0M

OFF

Backlight Acutime RESET

LAMP ERROR RESET

OFF

OFF ADJ PARAM SET Enter VIC XPOS 0 VIC YPOS 0 VIC SIGNAL TYPE MAIN VIC READ OFF

Resetting to "0"

3 – 5

8. Public Mode (Hotel Mode)

1. Starting the Public Mode

• There are two following ways to display the PUBLIC Mode setting screen.

1) On the process adjustment mode screen (2/16), set the “HOTEL MODE” Flag to ON.

LC-32DH65E/S, LC-37DH65E/S

Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.

2) Enter the Pass Word, and start the unit.

a) Turn on the power, pressing the and keys of the main unit at the same time.

b) Display the Pass Word input screen.

INPUT

CHANNEL UP

Volume UP

Public Mode Public Mode

Operation procedure

• The initial input position is the digit at the left end.

• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.

• Change “–” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.

• When three digits are completely input, the Pass Word is judged.

c) Check the Pass Word by inputting three digits.

If the Pass Word is , it shifts to the PUBLIC Mode setting screen.

In another case, the screen is erased, and it operates in the ordinary mode.

2. Exiting the Public Mode screen

• There are two following ways to exit the Public Mode setting screen.

1) Turn off the power.

2) Select “Execution” in the PUBLIC_Mode to execute it.

Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.

3. Set value of the Public Mode

• When the shipment setting is done, a set each value in Public Mode is initialized.

(PUBLIC MODE in the process mode Setting of a flag is also initialized)

• Separately, the shipment beginnings when all except for each set value in Public Mode is initialized are provided for a process mode. (INDUSTRY INIT (-HOTEL))

• Only when turning on the HOTELE MODE item, each setting is effective.

• After it decides it with EXECUTE, it AC OFF/ON it to reflect a set value.

2 7

Volume UP

Public Mode

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LC-32DH65E/S, LC-37DH65E/S

4. Basic operation in the Public Mode

Volume / or Cursor

Channel / or Cursor / Decision (ok) Execution (Used by the items “Execution” and “RESET”.) PUBLIC Mode R/C Ordinary operation mode: It enters the PUBLIC Mode.

</>

PUBLIC Mode: It exits the PUBLIC Mode.

Public Mode

POWER ON FIXED [VARIABLE]

SHUT DOWN MODE [NORMAL]

MAXIMUM VOLUME [60]

VOLUME FIXED [VARIABLE]

VOLUME FIXED LEVEL [20]

RC BUTTON [RESPOND]

PANEL BUTTON [RESPOND]

Change or execution of the set value.

Movement to the selected item.

PUBLIC MODE Flag is set to “ON”.

PUBLIC MODE Flag does not change. Any set item in PUBLIC Mode is not initialized.

MENU BUTTON [RESPOND]

AV POSITION FIXED [VARIABLE]

ON SCREEN DISPLAY [YES]

INPUT MODE START [NORMAL]

INPUT MODE FIXED [VARIABLE]

LOUD SPEAKER [ON]

RC PATH THROUGH [OFF]

232C POWON [DISABLE]

HOTELMODE [ON]

RESET

EXECUTE

5. Operation after “RESET”

Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).

• The set contents in the PUBLIC mode are initialized.

• It does not exit the PUBLIC mode.

• If “EXCUTE” is not executed, the content that does RESET is not reflected.

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