Sharp LC-32WD1E/S/RU, LC-42WT1E, LC-37WD1E/S/RU, LC-42WD1E/S/RU, LC-32WT1E Service Manual

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

SERVICE MANUAL

No. S57J1LC32WD1E

LCD COLOUR TELEVISION

LC-32WD1E/S/RU LC-37WD1E/S/RU LC-42WD1E/S/RU

LC-32WT1E LC-37WT1E

MODELS LC-42WT1E

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

PREFACE AND SAFETY INFORMATION

[1] PRINTING FROM THIS BOOK. . . . . . . . . . . . . . . . . . .i

[2] SAFETY AND EMI PRECAUTIONS . . . . . . . . . . . . . . ii

[3] PRECAUTIONS FOR LEAD-FREE SOLDER. . . . . . .iii

[4] SAFETY WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . .iii

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] REMOVE MAJOR PARTS

LC-32WD1E/S/RU AND LC-32WT1E . . . . . . . . . . . 4-1

[2] REMOVE MAJOR PARTS

LC-37WD1E/S/RU AND LC-37WT1E . . . . . . . . . . . 4-4

[3] REMOVE MAJOR PARTS

LC-42WD1E/S/RU AND LC-42WT1E . . . . . . . . . . . 4-7

CHAPTER 5 ADJUSTMENT PROCEDURES

[1] UPGRADING SOFTWARE . . . . . . . . . . . . . . . . . . . 5-1

[2] TROUBLESHOOTING SOFTWARE UPGRADE . . 5-7

[3] ENTERING THE PUBLIC MODE MENUS . . . . . . . 5-8

[4] REMOTE CONTROL KEY OPERATION

IN PUBLIC MODE. . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

[5] PUBLIC MODE SETTINGS. . . . . . . . . . . . . . . . . . . 5-8

[6] ENTERING THE SERVICE MENUS. . . . . . . . . . . . 5-8

[7] SERVICE MODE REMOTE CONTROL KEY

AND DESCRIPTION OF DISPLAY. . . . . . . . . . . . . 5-9

[8] SERVICE MENU SETTINGS . . . . . . . . . . . . . . . . . 5-9

CHAPTER 6 TROUBLESHOOTING TABLE CHAPTER 7 MAJOR IC INFORMATION

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

CHAPTER 8 OVERALL WIRING DIAGRAM

[1] OVERALL WIRING DIAGRAM

(LC-32WD1E/S/RU, LC-32WT1E) . . . . . . . . . . . . . . 8-1

[2] OVERALL WIRING DIAGRAM

(LC-37WD1E/S/RU, LC-37WT1E) . . . . . . . . . . . . . . 8-2

[3] OVERALL WIRING DIAGRAM

(LC-42WD1E/S/RU, LC-42WT1E) . . . . . . . . . . . . . . 8-3

[4] BLOCK DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . .8-4

CHAPTER 9 PRINTED WIRING BOARD

[1] LED/IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[2] SIDE I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

[3] KEYPAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3

[4] POWER UNIT PRINTED WIRING BOARD

(LC-32WD1E/S/RU, LC-37WD1E/S/RU,

LC-42WD1E/S/RU, LC-32/37/42WT1E). . . . . . . . . .9-4

[5] MAINBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

CHAPTER 10 SCHEMATIC DIAGRAM

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

[1] LED/IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

[2] SIDE I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

[3] KEYBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

[4] MAINBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

[5] POWER SUPPLY UNIT (LC-32WD1E/S/RU,

LC-37WD1E/S/RU, AND LC-32/37WT1E). . . . . . 10-19

[6] POWER SUPPLY UNIT (LC-42WD1E/S/RU,

LC-42WT1E) . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20

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.

SHPRN000222C-GLDN

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

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

Preface and Safety Information

This manual contains service instructions for the Sharp AQUOS LCD colour television, model numbers

• LC-32WD1E, LC-32WT1E, LC-32WD1S, LC-32WD1RU

• LC-37WD1E, LC-37WT1E, LC-37WD1S, LC-37WD1RU

• LC-42WD1E, LC-42WT1E, LC-42WD1S, LC-42WD1RU

This manual contains information and procedures to (1) isolate defective parts and repair them and (2) return the television to a safe, normal operating condition.

No attempt should be made to service or disassemble the product beyond the procedures provided in this document. The manufacturer will not be liable for (1) any injury to person or product that results from attempting to service the product beyond

the instructions provided in this manual or (2) the incorrect or mis-use of the information in this manual. This manual is copyrighted and all rights are reserved. This product may not, in whole or in part, be copied, photocopied, translated,

or reduced to any electronic or machine-readable form without prior written consent, except for copies retained by the purchaser for backup purposes.

The information in this manual is subject to change without notice. Any changes will be made and published in future releases of this manual.

Product and company names mentioned herein may be the trademarks of their respective owners and may be trademarked in one or more countries.

NO WARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, IS MADE WITH RESPECT TO THIS DOCUMENTATION, ITS QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

[1] PRINTING FROM THIS BOOK

[1.1] Automatically Print Oversized Pages

When you print this manual from Adobe® Acrobat®, the book will automatically print to the (default) page size. If you want the oversized sized pages to automatically print to a larger page size, do the following:

1. In Adobe Acrobat, select File > Print.

2. In the Print dialog box, in the Page Handling section, select Chose Paper Source by PDF page size.

3. Select OK to print.

[1.2] Printing Complicated Graphics

This book contains a large number of complicated graphics. Depending on your printer, you may have difficulties printing some of these graphics. To correct this problem, do the following:

1. In Adobe Acrobat, select File > Print.

2. In the Print dialog box, select Advanced.

3. In the Advanced Print Setup dialog box, select Print as Image.

4. Select OK to print.

1. These instructions may differ slightly depending on what version and type of Adobe Acrobat yo u are using.

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

[2] SAFETY AND EMI PRECAUTIONS

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.

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.

• 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.

DVM

AC SCALE

1.5k ohm 10W

0.15µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

BEFORE RETURNING THE RECEIVER

(EMI, Electro Magnetic Interference)

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

6. To be sure that EMI regularity is secured after repair, check if all parts have been positioned at exactly the same locations as before repair. Parts like cables, EMC ferrites, and metal parts are EMI sensitive parts and must be replaced or repositioned exactly as before repairs.

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

SAFETY NOTICE

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

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

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

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

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

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

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

[3] PRECAUTIONS FOR 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.

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 poo 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

edoCnoitpircseD.oN traP

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

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

L F a/a

[4] SAFETY WARNINGS

[4.1] Service by Qualified Personnel Only

WARNING! THIS MANUAL IS FOR USE BY QUALIFIED SERVICE PERSONNEL ONLY. ALL SERVICING SHOULD BE

REFERRED TO QUALIFIED SERVICE PERSONNEL. TO PREVENT INJURY, UNDER NO CIRCUMSTANCES

SHOULD ANYONE OTHER THAN QUALIFIED SERVICE PERSONNEL ATTEMPT TO REMOVE THE COVER OF ANY TELEVISION OR SERVICE IT.

[4.2] Power Safety

WARNING! BEFORE PERFORMING ANY TYPE OF SERVICE OR REPAIR ON ANY TELEVISION, TURN THE UNIT OFF

AND DISCONNECT ITS AC POWER CORD FROM THE POWER SOURCE.

iii

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Specifications

32” LCD Colour TV

LCD screen size 32” diagonal 37” diagonal 42” diagonal Number of pixels 1366 x 768 Video colour system PAL, PAL 60, NTSC 3.58, NTSC 4.43, SECAM Sound standard B/G, L/L’, I, D/K TV

Function

Brightness Backlight life 60,000 hours

Viewing Angles H: 176° V: 176° Audio amplifier Class D audio amplifier, 2x 10Watt Speaker 126 mm x 58 mm Terminals Rear Antenna UHF/VHF 75 ohm Din type (Analogue & Digital)

OSD Languages English, German, French, Spanish, Dutch, Portuguese, Turkish, Greek, Russian,

Power Requirement AC 220-240 V, 50 Hz Power Consumption 141 W

Weight 19 kg (display with stand)

Operating Temperature 0°C – 35°C

a. Model numbers: LC-32WD1E, LC-32WT1E, LC-32WD1S, LC-32WD1RU b. Model numbers: LC-37WD1E, LC-37WT1E, LC-37WD1S, LC-37WD1RU c. Model numbers: LC-42WD1E, LC-42WT1E, LC-42WD1S, LC-42WD1RU

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

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

Receiving Channels

TV Tuning System Auto Preset channels, Auto Label, Auto Sort Stereo/Bilingual NICAM/A2

Side EXT 3 S-Video (Y/C input), CVBS input, left/right RCA pin audio input

VHF/UHF E2-E69ch, F2-F10ch, I21-I69ch, IR A-IR Jch, (Digital: E5-E69ch) CATV Hyper-band, S1-S41ch

450 cd/m

EXT 1 SCART (S-Video input, analogue RGB input, CVBS input, tuner CVBS output) EXT 2 SCART (S-Video input, analogue RGB input, CVBS input/output) EXT 4 Component Video input (Y,P EXT 5

EXT 6 EXT 7 HDMI input

CI-Slot (Common Interface)

Output Left/right RCA pin audio output Service D-Sub 9 Service port (for qualified service personnel only)

Headphones

VGA input, 3.5 mm stereo input HDMI input, 3.5 mm stereo input

EN50221, R206001

∅

Italian, Polish, Swedish, Finnish

(<9 W Active standby) (<1 W Passive standby)

17 kg (display only)

3.5 mm jack (audio output)

∅

37” LCD Colour TV

B,PR input), left/right RCA pin audio input

177 W (<9 W Active standby) (<1 W Passive standby)

23.5 kg (display with stand) 20 kg (display only)

42” LCD Colour TV

190 W (<9 W Active standby) (<1 W Passive standby)

32 kg (display with stand)

28.5 kg (display only)

As a 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

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Television rear and side view

P (

)

(Programme [channel] buttons)

(- / + ) (Volume buttons)

EXT 3 Connections

S-Video input (Y/C)

Composite input (CVBS)

Audio input - Left

Audio input - Right

Headphones (audio out)

The S-Video (Y/C) and composite (CVBS) connection cannot be used at the same time.

AC Input

Common Interface slot

Antenna input (DVB-T 5V=/80 mA)

EXT 2 (SCART input/output)

(Input button)

(Standby/On button)

EXT 4 (Component input)

Audio output

EXT 6 (HDMI input, Stereo input for DVI-HDMI connections)

Service (D-Sub 9)

TV front view

Remote control sensor

OPC sensor

EXT 1* (SCART input/output)

2 - 1

EXT 5 (VGA / Stereo input)

*EXT 1 provides tuner output. Use EXT 1 to connect a decoder or audiovisual equipment used for recording purposes (ex. VCR).

OPC LED indicator SLEEP LED indicator

Standby/On LED indicator Remote Control indicator

EXT 7 (HDMI input)

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

Remote control function

(Standby/On)

Switches the TV between on and standby mode.

2AV MODE

Selects a preset audio/video setting (AV Mode).

3OPC

Turns the Optical Picture Control (OPC) “On” and “Off”.

4 0–9

TV/DTV: Directly selects the channel. Teletext: Selects the page.

(Flashback)

Returns to the previous channel or AV input.

(WIDE MODE)

Selects wide mode.

8EPG

9ESG

11 S/T/W/X (Cursor)

12 END

15 TruSurround

16 RADIO

(Sound mode)

See “Using Multiplex” on page 2.

DTV: Displays the EPG (Electronic Programme Guide) screen.

DTV: Displays the ESG (Electronic Service Guide) screen.

(Teletext)

TV: Selects the teletext mode. DTV: Selects the teletext mode or MHEG service (if available). To specify which service displays, refer to “Language”.

Selects an item on the screen.

Press to exit the on-screen display menu screen.

(Reveal hidden teletext)

Reveals/hides hidden teletext information.

(Freeze/Hold)

TV/DTV/External: Freezes the onscreen image. Teletext: Stop updating teletext pages automatically or release the hold mode.

Turns SRS TruSurround® “On” and “Off”.

DTV: Switches between RADIO and DTV Mode.

(Mute)

Turns the sound “On” and “Off”.

18 DTV

Switches between analogue TV mode and DTV mode.

22 SLEEP

(+ / -) (Volume)

Increases or decreases the volume. P ()

TV/DTV: Selects the channel. External: Switches to TV or DTV input mode. Teletext: Move to the next or previous page.

(Input source)

Selects an input source.

Sets the amount of time the TV will stay on before automatically turning off. (In units of 30 minutes to a maximum of 2 hours 30 minutes.)

(Display information) TV: Displays channel information. DTV: Displays the service banner.

24 DTV MENU

DTV: Displays the DTV on-screen display menus.

25 MENU

Displays the Main TV on-screen display menus.

26 OK

Selects an option in the on-screen display menu. Displays the programme list (except for external input).

27 RETURN

Returns to the previous menu.

(Subpage) Displays current time. Teletext: Displays or hides subpages.

(Subtitle for Teletext)

TV/External: Turns the teletext subtitles “On” and “Off. DTV: Displays the subtitle selection screen.

30 Colour (Red/Green/Yellow/Blue)

TeleText: Selects a group or block of pages displayed in the coloured brackets at the bottom of the screen by pressing the corresponding colour button on the remote control. DTV: When using the on-screen display, assigned tasks as indicated at the bottom of the screen.

Using Multiplex

DTV mode— Press to change

languages. Analogue TV mode—Each time you

press , the mode switches as illustrated in the following table.

Signal Selectable Item

Mono Mono Mono

A2 TV broadcasts selection

Mono Mono Stereo Stereo, Mono Dual Channel A (I), Channel B (II),

Channel AB (I+II)

NICAM TV broadcasts selection

Mono NICAM Mono Stereo NICAM Stereo, FM/AM* Mono Dual NICAM Channel A (I), NICAM

Channel B (II), NICAM Channel AB (I+II), FM/AM Mono*

* Depending on the country, the option is either AM or FM mono.

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

LC-32WD1E / LC-37WD1E / LC-42WD1E LC-32WT1E / LC-37WT1E / LC-42WT1E LC-32WD1S / LC-37WD1S / LC-42WD1S LC-32WD1RU / LC-37WD1RU / LC-42WD1RU

(499.3) / [547.1] / ((547.1)) (499,3) / [547,1] / ((547,1))

(796.0) / [913.0] / ((1027.0)) (796,0) / [913,0] / ((1027,0))

(700.0) / [822.6] / ((933.0)) (700,0) / [822,6] / ((933,0))

( ) : LC-32WD1E

LC-32WT1E LC-32WD1S LC-32WD1RU

[ ] : LC-37WD1E

LC-37WT1E LC-37WD1S LC-37WD1RU

(( )) : LC-42WD1E

LC-42WT1E LC-42WD1S LC-42ED1RU

LC-32WD1E LC-32WT1E LC-32WD1S LC-32WD1RU LC-37WD1E LC-37WT1E LC-37WD1S LC-37WD1RU LC-42WD1E LC-42WT1E LC-42WD1S LC-42WD1RU

(530.5) / [598.2] / ((673.0))

(530,5) / [598,2] / ((673,0))

(587.6) / [655.3] / ((730.0))

(587,6) / [655,3] / ((730,0))

((57.1))

((57,1))

(57.1) / [57.1]

(57,1) / [57,1]

((45.6))

((45,6))

(114.2) / [87.2]

(114,2) / [87,2]

200.0

200,0

200.0 200,0

(394.6) / [463.8] / ((526.0))

(394,6) / [463,8] / ((526,0))

3 - 1

(341.8) / [376.0] / ((418.0))

(341,8) / [376,0] / ((418,0))

(82.1) / [116.1] (82,1) / [116,1]

((115.3)) ((115,3))

(243.0) / [293.0] (243,0) / [293,0]

((293.0)) ((293,0))

(110.0) / [110.0] (110,0) / [110,0]

((111.0)) ((111,0))

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LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVE MAJOR PARTS LC-32WD1E/S/RU AND LC-32WT1E

1. Remove the 4 lock screws (1). Detach the Stand.

2. Remove the 7 lock screws (2). Remove the 10 lock screws (3). Detach the Rear Cover.

3. Remove 4 lock screws (4). Detach Wall Mount Bracket (Top).

4. Remove 4 lock screws (5). Detach Wall Mount Bracket (Bottom).

5. Disconnect cable (X012). Remove 2 lock screws (6) and detach Key Unit Plate.

6. Remove 2 lock screws (7) and detach Key Unit.

7. Disconnect cable (X0208). Remove 1 lock screw (8). Detach Side I/O.

8. Remove 2 lock screw (9). Detach Side I/O PBA.

9. Disconnect cable (X021). Remove 1 lock screw and washer (10). Detach Speaker R.

10. Remove 4 lock screws (11). Detach Speaker from Speaker Box.

11. Disconnect cable (X022). Remove 1 lock screw and washer (12). Detach Speaker L.

12. Remove 4 lock screws (13). Detach Speaker from Speaker Box.

4 - 1

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13. Remove all the connections from PWBs.

14. Remove 6 lock screws (14). Dismount power cable. Remove Shield.

15. Remove 3 lock screws (15). Remove 2 lock screws (16). Detach Bottom Bracket.

16. Remove 9 lock screws (17). Deta ch Power Unit.

17. Remove 2 lock screws (18). Detach IR/LED PBA, IR Window, and Seals. —OR—

Detach IR/LED PBA, IR Window, and IR Tube.

18. Remove 4 lock screws (19). Remove 4 lock screws (20). Remove 2 lock screws (21).

19. Remove 2 lock screws (22). Deta ch Mainbo ard Unit.

1. Depending on the manufacture date, the unit may have either configuration. Preferred configuration is with IR Tube.

4 - 2

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20. Remove 4 lock screws (23). Remove Panel Plate.

21. Remove 4 lock screws (24). Remove 2 lock screws (25). Remove Panel Bracket Left.

22. Remove 4 lock screws (26). Remove 2 lock screws (27). Remove Panel Bracket Right.

23. Remove the LCD panel from the Front Cover.

4 - 3

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[2] REMOVE MAJOR PARTS LC-37WD1E/S/RU AND LC-37WT1E

1. Remove the 4 lock screws (1). Detach the Stand.

2. Remove the 7 lock screws (2). Remove the 10 lock screws (3). Detach the Rear Cover.

3. Remove 4 lock screws (4). Detach Wall Mount Bracket (Top).

4. Remove 4 lock screws (5). Detach Wall Mount Bracket (Bottom).

5. Disconnect cable (X012). Remove 2 lock screws (6) and detach Key Unit Plate.

6. Remove 2 lock screws (7) and detach Key Unit.

7. Disconnect cable (X0208). Remove 1 lock screw (8). Detach Side I/O.

8. Remove 2 lock screw (9). Detach Side I/O PBA.

9. Disconnect cable (X021). Remove 2 lock screws and washers (10). Detach Speaker R.

10. Remove 4 lock screws (11). Detach Speaker from Speaker Box.

11. Disconnect cable (X022). Remove 2 lock screws and washer (12). Detach Speaker L.

12. Remove 4 lock screws (13). Detach Speaker from Speaker Box.

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13. Remove all the connections from PWBs.

14. Remove 6 lock screws (14). Dismount power cable. Remove Shield.

15. Remove 4 lock screws (15). Detach Bottom Bracket.

16. Remove 9 lock screws (16). Deta ch Power Unit.

17. Remove 2 lock screws (17). Detach IR/LED PBA, IR Window, and Seals. —OR—

Detach IR/LED PBA, IR Window, and IR Tube.

18. Remove 4 lock screws (18). Remove 4 lock screws (19). Remove 2 lock screws (20).

19. Remove 2 lock screws (21). Deta ch Mainbo ard Unit.

2. Depending on the manufacture date, the unit may have either configuration. Preferred configuration is with IR Tube.

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20. Remove 4 lock screws (22). Remove Panel Plate.

21. Remove 4 lock screws (23). Remove 2 lock screws (24). Remove Panel Bracket Left.

22. Remove 4 lock screws (25). Remove 2 lock screws (26). Remove Panel Bracket Right.

23. Remove the LCD panel from the Front Cover.

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[3] REMOVE MAJOR PART S LC-42W D1E/S/RU AND LC-42WT1E

1. Remove the 4 lock screws (1). Detach the Stand.

2. Remove the 6 lock screws (2). Remove the 11 lock screws (3). Detach the Rear Cover.

3. Remove 4 lock screws (4). Detach Wall Mount Bracket (Top).

4. Remove 4 lock screws (5). Detach Wall Mount Bracket (Bottom).

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5. Disconnect cable (X012). Remove 2 lock screws (6) and detach Key Unit Plate.

6. Remove 2 lock screws (7) and detach Key Unit.

7. Disconnect cable (X0208). Remove 1 lock screw (8). Detach Side I/O.

8. Remove 2 lock screw (9). Detach Side I/O PBA.

9. Disconnect cable (X021). Remove 2 lock screws and washers (10). Detach Speaker R.

10. Remove 4 lock screws (11). Detach Speaker from Speaker Box.

11. Disconnect cable (X022). Remove 2 lock screws and washer (12). Detach Speaker L.

12. Remove 4 lock screws (13). Detach Speaker from Speaker Box.

13. Remove all the connections from PWBs.

14. Remove 6 lock screws (14). Dismount power cable. Remove Shield.

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15. Remove 4 lock screws (15). Remove 2 lock screws (16). Detach Bottom Bracket.

16. Remove 9 lock screws (17). Deta ch Power Unit.

17. Remove 4 lock screws (18). Remove 4 lock screws (19). Remove 2 lock screws (20).

18. Remove 2 lock screws (21). Deta ch Mainbo ard Unit.

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19. Remove 4 lock screws (22). Remove Panel Plate.

20. Remove 2 lock screws (23). Remove Screen Bracket Left.

21. Remove 4 lock screws (24). Remove Screen Bracket Right.

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22. Remove 4 lock screws (25). Remove Panel Bracket Left.

23. Remove 4 lock screws (26). Remove Panel Bracket Right.

24. Remove 2 lock screws (27). Detach IR/LED PBA, IR Tube, and IR Window.

25. Remove 2 lock screws (28). Remove 2 lock screws (29). Remove Panel Clamp 1.

26. Remove 2 lock screws (30). Remove 2 lock screws (31). Remove Panel Clamp 2.

27. Remove 2 lock screws (32). Remove 2 lock screws (33). Remove Panel Clamp 3.

28. Remove 2 lock screws (34). Remove 2 lock screws (35). Remove Panel Clamp 4.

29. Remove the LCD panel from the Front Cover.

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CHAPTER 5. ADJUSTMENT PROCEDURES

[1] UPGRADING SOFTWARE

[1.1] File types and Hardware/Software Requirements

File Type Hardware Software

All Upgrades • Controlling PC

(running Microsoft® Windows®)

• Television

• Power cable

• Remot e co ntrol

Analogue • UOC/GTV application

(.hex)

• PNX application(s) (.mi)

• PNX config files (.cfg)

• PNX EEPROM (.eeprom)

Digital • ST/Futarque DTV (.bin) • PCMCIA Compact Flash (CF)

UOC eeprom • This software should never be upgraded. This device is written (initialized) automatically during the installa-

tion procedure at first power-on.

• Service PCB

• Jumper

• Aardvark tool

• USB cable

adapter

• CF memory card

• Latest software package and release notes

• ServUpdtArdV_vx_x.exe Application for controlling the

update

• FTD2XX.*

Drivers for Aardvark tool

[1.2] Time Requireme nts

Image Time required

Analogue +/- 8 minutes

/gtv_flash.hex +/- 40 seconds /bffs0/app.mi +/- 440 seconds /bffs0/dsw.mi +/- 150 seconds /bffs0/gamma.cfg +/- 4 seconds /bffs0/hdcp.cfg +/- 4 seconds /bffs0/profile.cfg +/- 4 seconds /PNX Eeprom +/- 10 seconds

Digital +/- 120 seconds

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[1.3] Analogue Upgrade

[1.3.1] Analogue Upgrade Software Setup

Refer to “File types and Hardware/Software Requirements” on page 5-1.

1. Copy all files from the CD-ROM to your hard drive. Do not re-organize the file directories.

2. Open ServUpdtArdV_vx_x.exe. The application should open with no errors. Close the application.

3. During the hardware setup (if necessary), you will be prompted to install FTD2XX.*.

[1.3.2] Analogue Upgrade Hardware Setup

1. On the Service PCB, install the jumper to shortcut the X2 jumper position.

Jumper

2. Connect the Service PCB to the TV by the DB9 connector. (Refer to “T elevision rear and side view” on page 2-1.)

3. Connect the Aardvark tool to the Service PCB.

4. Connect the USB cable to the Aardvark tool. Connect the other end of the USB cable to the controlling PC.

Note:

The first time the Aardvark tool is connected to the controlling PC, Windows may prompt for missing drivers. Browse to the “\driver” directory on the service jigs CDROM and select the requested drivers (FTD2XX.*).

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[1.4] Analogue Upgrade Process

1. Disconnect the TV from AC power. Wait 10 seconds. Do NOT go to standby first. Just unplug the power cord.

2. Connect the TV with the set up as described in “Analogue Upgrade Hardware Setup” on page 5-2.

3. Connect the TV to AC power.

4. Press to turn the TV on. (The Standby/On LED on the front of the TV is GREEN.)

5. Open ServUpdtArdV_vx_x.exe.

6. In ServUpdtArdV_vx_x.exe, be sure that the checkbox by Enter ISP is highlighted automatically.

Note:

If Enter ISP is not automatically checked, try to select the Enter ISP button. If this does not highlight the checkbox, close the application and re-check your setup as described in “Analogue Upgrade Hardware Setup”, power the TV on and off, and then start over at step1.

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7. Select the image file(s) you want to upgrade.

a. For each image file that you want to upgrade, press Select to open a browse window. b. Browse to the location of the new image files and select the file.

Note:

• The image files must be on the hard drive of the controlling PC. They cannot be on a network connection.

• The image file names may vary. Use the release notes to identify the correct image file.

• The image files may be located in the subdirectories of the software package.

• To make sure the tool is working properly, you can first try to download only the *.cfg files. They are small so you will see rather quickly if something is going wrong.

c. Select Program All to start the upgrade. DO NOT INTERRUPT THIS SEQUENCE!

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8. When finished, a message similar to this will be displayed:

Note:

If the upgrade fails, please power off the set and close the program. Then restart the procedure.

9. Close your PC application.

10. If you updated the GTV image (.hex file), it is possible the LEDs on the front of the TV will blink and illuminate for approximately 30 seconds. This is the virgin TV Init process. Wait until the LEDs are off, and then the TV will start up automatically.

Step 1: Visual notification for the start of the EEPROM TV initialization (3 sequences)

Step 2: Visual notification for the TV initialization / data writing (1 sequence):

Step 3: Visual notification for the end of the eeprom TV initialization (3 sequences)

1 1 . Disconnect the Service PCB from the TV.

12. Disconnect the TV from AC power. Wait 10 seconds.

13. Connect the TV to AC power. The TV will turn on automatically. (Standby/On LED is GREEN.)

14. Complete the steps in the automatic setup.

15. Verify the TV was upgraded correctly. (See “Service Menu Settings” on page 9.)

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[1.5] Digital Upgrade Process

1. Place the latest digital software on the CF card. (Refer to the release notes to identify the correct file.)

2. If the TV is not already on, connect the TV to AC power and press to turn the TV on.

3. Press DTV on the remote control to put the television into DTV mode.

4. Disconnect the TV from AC power. Wait 10 seconds. Do NOT go to standby first. Just unplug the power cord.

5. Insert the CF card into the PCMCIA CF adapter.

Note:

6. Insert the PCMCIA CF adapter into the CI-slot on the rear panel of the TV. (Refer to “Television rear and side view” on page 2-1.)

7. Connect the TV to AC power. The upgrade process will start. The message “Digital TV, Starting” will display on the screen.

8. When the “Digital TV, Starting” message is no longer on the TV, the upgrade process is complete.

9. If the TV is not on already, press to turn on the TV.

10. Complete the steps in the automatic setup.

11. Using the remote control, verify that the TV was upgraded correctly by going to the following screen: Press DTV and then press DTV MENU. Go to Installation > About.

Note:

A CF memory card is included in the software upgrade kit. Please use this CF card when upgrading. Most other 32 MB and 64 MB cards will work, but they are not fully tested.

Downgrade Instructions: The easiest way to perform a downgrade is to rename the file (with the old version you

want to downgrade to) to a version higher than the one that is currently in the set. So if version 1.03 is currently in the set and you want to downgrade to v1.01, you should rename the file “8400-14001_01.bin” on the Compact Flash to “8400-14001_04.bin”.

Note:

Forced Download Instructions:

The “Downgrade Instruction” procedure can also be used when software is partly written to the flash (for example, in the case of a power failure).

Before upgrading, the software versions (on the CF card and TV) are compared. If the versions are the same, the upgrade is automatically cancelled. A partly written flash can never be upgraded unless the system is fooled by renaming the file as described in “Downgrade Instructions”.

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[2] TROUBLESHOOTING SOFTWARE UPGRADE

Start ServUpdtArdV_vx_x.exe

Yes

Is checkbox behind “Enter ISP”

checked?

Yes

Are files found when pressing

“select”

Yes

Is Flashing interrupted due to:

- error message

- power loss

Is the right file on the CF?

Yes

- Is Aardvark.dll still in same directory?

- Copy complete directory “ServUpdt” to HDD.

- Is your OS Microsoft Windows?

Check if all connections are according the dervice manual and the TV set is powered on.

Check if correct tool is selected in “Select Port”

Request latest set-software. Copy the files to your HDD.

Browse to the destination you copied the files to.

Please restart SW upgrading procedure.

Flashing of Analogue TV

Request latest set-software. Copy the files to your HDD.

Copy *.bin file to CF (check release notes)

Is the display still black after

flashing time expired?

Is flashing interrupted due to:

- power loss

DVBt doesn’t start after reboot?

Power off set and remove FC card Power on set and check SW version

If version is not updated, retry flash procedure

Please restart SW upgrading procedure.

Is the CF card removed? Rename the *.bin file to a higher number and retry.

Flashing of Digital TV

if the file is called: “8400-14001_02.bin” then rename it to “8400-14001_03.bin” Attention: this procedure can be use when SW is partly written to the flash due to e.g. power failure. Before upgrading, the version is checked. When it’s the same the upgrade will be cancelled. So the partly written flash can never be upgraded unless the SW is fooled by this higher version (renamed file). So in fact this is a forced download...

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[3] ENTERING THE PUBLIC MODE MENUS

1. On the remote control, press MENU.

•The TV Menu screen displays.

2. Enter the PIN code “3001”.

• Using the number keypad, press 3, then 0, then 0, and then 1. (Each button in the sequence must be pressed immediately after the button before it or the television will not recognize the entry code.)

Note:

Depending on the Public Mode settings, the TV Menu screen may not be visible when Public Mode is activated. To open the Public Mode me nu, the user still needs to open the TV Menu (which remains hid den) and enter “3001”.

[4] REMOTE CONTROL KEY OPERATION IN PUBLIC MODE

[4.1] Remote Control Key Operation

Remote Control Key Function / Remark

S/T W/X

END Press to exit the service menus.

Press to move up and down and select the desired item. Press to change the setting of the selected item.

[5] PUBLIC MODE SETTINGS

Item Available Settings and Description

Power On Fixed

Maximum Volume [Range] — The volume level specified here is the maximum volume level for the TV. Volume Fixed Variable — The sound volume is not fixed.

Volume Fixed Level [Range] — The volume level specified here is the fixed volume level for the TV. RC Button Respond — The TV will respond when buttons are pressed on the remote control.

Panel Button Respond — The TV will respond when buttons are pressed on the panel / keypad.

Menu Button Respond — The TV will respond when Menu and DTV Menu are pressed.

On Screen Display On — The on screen display menus will behave normally.

Input Mode Start [Variable] — When the TV is turned on, the TV will start-up in this input mode. Input Mode Fixed On — The input mode is fixed to the mode set in “Input Mode Start”.

Reset Resets the Public Mode setting s to the factory defaults. Public Mode On — The TV will follow the settings specified in the Public Mode menu.

Variable — The TV will go into standby mode when is pressed. Fixed — The TV will not go into standby mode when is pressed.

Fixed — The sound volume is fixed to the level set in “Volume Fixed Level”.

No Respond — The TV will not respond when buttons are pressed on the remote control.

No Respond — The TV will not respond when buttons are pressed on the panel / keypad.

No Respond — The TV will not respond when Menu and DTV Menu are pressed.

Off — The on screen display menus will not display.

Off — The input mode is not fixed.

Off — The TV will ignore the settings specified in the Public Mode menu.

[6] ENTERING THE SERVICE MENUS

1. On the remote control, press MENU.

•The TV Menu screen displays.

2. Enter the PIN code “1147”.

• Using the number keypad, press 1, then 1, then 4, and then 7. (Each button in the sequence must be pressed immediately after the button before it or the television will not recognize the entry code.)

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[7] SERVICE MODE REMOTE CONTROL KEY AND DESCRIPTION OF DISPLAY

[7.1] Remote Control Key Operation

Remote Control Key Function / Remark

1 - 9 Enter the item number (3-digit format) to go to the specified item.

S/T W/X

END Press to exit the service menus.

[7.2] Description of Display

Press to scroll one-by-one through the service item screens. Press to change the setting of the selected service item.

Item Category* Setting

INTROADRUNNERXX

Item #

001 00000000

01000000 11000010 00000000

Init TV 0 00000000

00111100

*Where “X” indicates the version of the software package.

[8] SERVICE MENU SETTINGS

CAUTION:

Item # Item

000 GTV

001 Init TV 0 = Off

276 Gam-20IRE-R 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

277 Gam-80IRE-R 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

278 Gam-20IRE-G 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

279 Gam-80IRE-G 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

280 Gam-20IRE-B 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

281 Gam-80IRE-B 0 - 255 White Point Calibration. See “Using White Point Calibration Items” on page 5-

858 Virgin bit 0 = Off

Only the items described in this section should be modified. Do not modify any other se tti ngs available in the service menus.

Available Settings Remarks (adjustment details, etc.)

Not Applicable 1st line describes the overall SW package version name (See [7.2].)

Application

X = Activate

1 = On

2nd line describes the UOC/GTV SW version 3rd line on the right describes the PNX SW version

Initialization to factory settings. When the factory settings have been made, all user setting data, including the channel settings, are initialized. (The adjustments done in the adjustment process mode are not initialized.)

See “Using Init TV” on page 5-10.

11.

11. Puts the TV into virgin mode. When the TV is restarted, the TV will start in virgin

mode. The Auto Install menu (wizard) will start when the TV is restarted, but the EEPROM settings are not erased. See “Using Virgin Bit” on page 5-11.

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925 Last Error

Code

926 Error Count Not Applicable Number of times the set went into reset due to an error. 927 LCD Size 1 = LC-32WD1E

Not Applicable The last error code recorded.

0x00 = DTV HANGUP 0x01 = POWER_ON_RESET 0x02 = SUPPL Y_V OLTAGE_INDICATION_ERROR 0x04 = OUTPUT_VERTICAL_GUARD_ERROR 0x08 = XRAY_PROTECTION_ERROR 0x10 = PROTECTION_1_8V_SUPPLY_VOLTAGE_ERROR

Sets the panel size of the TV . Set this setting after replacing the mainboard. This 1 = LC-32WT1E 2 = LC-32WD1S 3 = LC-32WD1RU 4 = LC-37WD1E 4 = LC-37WT1E 5 = LC-37WD1S 6 = LC-37WD1RU 7 = LC-42WD1E 7 = LC-42WT1E 8 = LC-42WD1S 9 = LC-42WD1RU

setting must be set to make sure the right settings are loaded for this TV

(gamma table, etc.).

[8.1] Using Init TV

CAUTION:

Item # Item Adjustment Conditions Adjustment Procedure

001 Init TV See caution above. 1. Enter the adjustment process mode.

When factory settings have been made, all user setting data, including the channel settin gs, are initialized. (The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.)

2. Go to this item. Press The screen will go dark and the LEDs on the front of the TV

will alternate between cycling and all illuminated. When finished, the On/Standby LED will illuminate GREEN

and the TV will be on.

CAUTION: Never turn the power off during initialization.

The following settings have been reset to the factory settings:

• User settings.

• Channel data (e.g., broadcast frequencies)

• Password data

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[8.2] Using White Point Calibration Items

Item # Item Adjustment Conditions Adjustment Procedure

276 277 278 279 280 281

Gam-20IRE-R Gam-80IRE-R Gam-20IRE-G Gam-80IRE-G Gam-20IRE-B Gam-80IRE-B

• White point adjustment can only be done after a preheating (burn-in) of the TV set or LCD panel for at least 15 minutes.

• The White point adjustment can only be done with an I2c tool and the SW to control the W/B settings.

Adjustment Reference Device:

• Minolta CA-210

Target Values:

80% WHITE WINDOW

x: 0.2764 ± 0.0050 y: 0.2814 ± 0.0050 Lv: 243.1 ± 50.0

20% WHITE WINDOW

x: 0.2764 ±0.0075 y: 0.2814 ±0.0075 Lv: 11.5 ±10.0

1. Position the colorimeter Minolta CA-210 against the panel exactly in front-mid of the panel (in a dark room)

2. Send the I2c command to generate the internal 80% white test-picture from PNX.

3. Measure the Lv with the CA-210 and adjust the 80% green value via I2c commands.

* Lv = G

4. Measure the y parameter with the CA-210 and adjust the 80% Blue value via I2c commands.

* y = -B

5. Measure the x parameter with the CA-210 and adjust the 80% Red value via I2c commands.

* x = R Repeat the Blue and Red adjustment twice to get a better

end result.

6. Send the I2c command to generate the internal 20% white test-picture from PNX.

7. Measure the Lv with the CA-210 and adjust the 20% Green value via I2c commands.

* Lv = G

8. Measure the y parameter with the CA-210 and adjust the 20% Blue value via I2c commands.

* y = -B

9. Measure the x parameter with the CA-210 and adjust the 20% Red value via I2c commands.

* x = R

10. Repeat the Blue and Red adjustment twice to get a better end result.

[8.3] Using Virgin Bit

Item # Item Adjustment Conditions Adjustment Procedure

858 Virgin bit None. 1. Enter the adjustment process mode.

2. Go to this item. Press

3. Press to put the TV into standby mode.

4. Press to turn the TV on. The TV is in virgin mode. The setup wizard should be

displayed on the screen.

5 - 11

X to set the item to 1.

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[8.4] Using Error Count

Item # Item Adjustment Conditions Adjustment Procedure

926 Error Count None. 1. Enter the adjustment process mode.

2. Go to this item. The number displayed is the number of times the TV went into reset due to an error.

[8.5] Using LCD Size

Item # Item Adjustment Conditions Adjustment Procedure

927 LCD Size This setting must be set after

replacing the mainboard to make sure the right settings are loaded for the TV (gamma table, etc.)

1. Enter the adjustment process mode.

2. Go to this item. Press 1 = LC-32WD1E, LC-32WT1E 2 = LC-32WD1S 3 = LC-32WD1RU 4 = LC-37WD1E, LC-37WT1E 5 = LC-37WD1S 6 = LC-37WD1RU 7 = LC-42WD1E, LC-42WT1E 8 = LC-42WD1S 9 = LC-42WD1RU

X to set the size of the panel:

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CHAPTER 6. TROUBLESHOOTING TABLE

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-1

Is the power cord properly connected?

v yes

Is the LED (power - H012) lit?

v yes

Power on the set by using the remote. Does it start?



Is a voltage of over 3v measured at X013-5?



Press the power-button on the set. Does it start?

Connect the power cord

Is a voltage of 3v3 measured at X090-1?

Is a voltage of 3v3 measured at X013-1?

(3V3_STB)

v yes

Replace IR PCB

v yes

Replace IR PCB



Replace PSU module

Replace Mainboard

Check/replace Mainboard

Page 33

Backlight failure to light up

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-2

Page 34

In case of LCD failure:

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-3

Page 35

NO picture on display via tuner reception (analog TV)

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-4

No picture appears on LCD screen during tuner reception

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "TV"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Is ANT-CABLE disconnected or connected improperly? ==> Connect it correctly as per the operation manual

v yes

Check if D0911 (LD1117DT50) output (pin2) is 5V

IF yes, check if D0918 (MC34063A) output (pin2) is 6v6

IF yes, check +12V_DVB

These are I2c communication lines for tuner control.

Follow the path and check whether they are forced to LOW.

Check I2C switch D016

Check analog switch D0111 (74HCT1G66PW)

power supply (5V) and functionality

Check the tuner (U011) and peripheral circuits

check video SAW filter and peripheral circuits

check SAW_SW signal

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

Is level of tuner supply voltage (pin 7 of tuner U011) 5V ?

v yes

Is level of I2C lines (pins 4 and 5 of tuner U011) LOW ?

v no

Is level of tuner AGC (pin2 of U011) 0V ?

v no

Is the video signal (IF) sent from pin8 of tuner (U011) ?

v yes

Is video signal sent from pins 4 and 5 of video SAW filter (Z011)

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes



yes



yes



GOTO VIDEO PATH CHECK

Page 36

NO picture on display via EXT-1 CVBS input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-5

No picture on LCD screen when EXT-1 CVBS input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT1"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Check external connection, input setting, SCART1 and peripheral

Is composite video signal arriving to pin20A of SCART1 (X027-1) ?

v yes

Is CVBS signal present on both sides of C0132 ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes



circuits.

check C0132, check peripheral on SCART1_CVBS_IN signal

(termination R, ESD protection diode,…)

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

GOTO VIDEO PATH CHECK

Page 37

NO picture on display via EXT-1 RGB input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-6

No picture on LCD screen when EXT-1 RGB input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT1"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Are RGB signals arriving to pins 15A(R), 11A(G) and 7A(B)

of SCART1 (X027-1) ?

v yes

are RGB signals arriving to video switch TDA8601 (D1301)

at pins 8, 7 and 6 ?

v yes

are RGB signals arriving to both sides of C0177(R), C0175(G) and

C0164(B) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, SCART1 and peripheral



check C1322(R), C1318(G), C1314(B) and check peripheral on



SCART1_RGB signals (termination R, ESD protection diode,…)

Check video switch TDA8601 (D1301) power supply (+8V_SW) and



check GTV SW and peripherals (power supply,xtal,…) of D013

Check if SLCT_RGB_YPbPr is set correctly

TDA15134E (UOCV) (D013) is not functioning normal,

check resistor networks on UOCV_DV signals

circuits.

peripherals

GOTO VIDEO PATH CHECK

Page 38

NO picture on display via EXT-1 Y/C input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-7

No picture on LCD screen when EXT-1 Y/C input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT1"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Are Y/C signals arriving to pins 20A(Y) and 15A(C)

of SCART1 (X027-1) ?

v yes

is C signal arriving to video switch TDA8601 (D1301)

at pin 8 ?

v yes

are Y/C signals arriving to both sides of C0177(C) and C0132(Y) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, SCART1 and peripheral



check C1322 and check peripheral on SCART1_R signal (termination



Check video switch TDA8601 (D1301) power supply (+8V_SW) and



peripherals, Check if SLCT_RGB_YPbPr is set correctly.

Check C0132, check peripheral on SCART1_CVBS_IN signal

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013



R, ESD protection diode,…)

(termination R, ESD protection diode,…)

check resistor networks on UOCV_DV signals

circuits.

GOTO VIDEO PATH CHECK

Page 39

NO picture on display via EXT-2 CVBS input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-8

No picture on LCD screen when EXT-2 CVBS input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT2"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Check external connection, input setting, SCART2 and peripheral

Is composite video signal arriving to pin20B of SCART2 (X027-2) ?

v yes

Is CVBS signal present on both sides of C0169 ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes



check C0169, check peripheral on SCART2_Y_CVBS_IN signal



check GTV SW and peripherals (power supply,xtal,…) of D013

(termination R, ESD protection diode,…)

TDA15134E (UOCV) (D013) is not functioning normal,

check resistor networks on UOCV_DV signals

circuits.

GOTO VIDEO PATH CHECK

Page 40

NO picture on display via EXT-2 RGB input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-9

No picture on LCD screen when EXT-2 RGB input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT2"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Are RGB signals arriving to pins 15B(R), 11B(G) and 7B(B)

of SCART2 (X027-2) ?

v yes

are RGB signals arriving to video switch TDA8601 (D1302)

at pins 8, 7 and 6 ?

v yes

are RGB signals arriving to both sides of C0178(R), C0176(G) and

C0165(B) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, SCART2 and peripheral



check C1338(R), C1334(G), C1331(B) and check peripheral on



SCART2_RGB signals (termination R, ESD protection diode,…)

Check video switch TDA8601 (D1302) power supply (+8V_SW) and



check GTV SW and peripherals (power supply,xtal,…) of D013

Check if SLCT_RGB_YPbPr is set correctly

TDA15134E (UOCV) (D013) is not functioning normal,

check resistor networks on UOCV_DV signals

circuits.

peripherals

GOTO VIDEO PATH CHECK

Page 41

NO picture on display via EXT-2 Y/C input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-10

No picture on LCD screen when EXT-2 Y/C input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT2"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Are Y/C signals arriving to pins 20B(Y) and 15B(C)

of SCART2 (X027-2) ?

v yes

is C signal arriving to video switch TDA8601 (D1302)

at pin 8 ?

v yes

are Y/C signals arriving to both sides of C0178(C) and C0169(Y) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, SCART2 and peripheral



check C1338 and check peripheral on SCART2_R_C signal

(termination R, ESD protection diode,…)

Check video switch TDA8601 (D1302) power supply (+8V_SW) and

peripherals, Check if SLCT_RGB_YPbPr is set correctly.

Check C0169, check peripheral on SCART2_Y_CVBS_IN signal

(termination R, ESD protection diode,…)

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

circuits.

GOTO VIDEO PATH CHECK

Page 42

NO picture on display via EXT-3 CVBS input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-11

No picture on LCD screen when EXT-3 CVBS input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT3"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Is composite video signal arriving to pin1 of connector X014 on Side

I/O PCB ?

v yes

Is CVBS signal present on pin1 of X0208 on Main PCB ?

v yes

Is CVBS signal present on both sides of C01100 ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, connector X011-2 and



peripheral circuits (termination R, ESD protection diode,…)

Check connectors X014 on side I/O PCB and X0208 on

Main PCB, check wiring between these connectors.

check C01100, check peripheral on FRONT_Y_CVBS_IN signal

(termination R, BLM,…)

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

GOTO VIDEO PATH CHECK

Page 43

NO picture on display via EXT-3 Y/C input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-12

No picture on LCD screen when EXT-3 Y/C input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT3"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

v yes

Are Y/C video signals arriving to pin1(Y) and pin3(C) of connector

X014 on Side I/O PCB ?

v yes

Are Y/C signals present on pin1 and pin3 of X0208 on Main PCB ?

v yes

Are Y/C signals present on both sides of C01100(Y) and

C0168(C) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

Check external connection, input setting, connector X011-1 and



peripheral circuits (termination R, ESD protection diode,…)

Check connectors X014 on side I/O PCB and X0208 on

Main PCB, check wiring between these connectors.

check C01100 and C0168, check peripherals on FRONT_Y_CVBS_IN

and FRONT_C_IN signals

(termination R, BLM,…)

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

GOTO VIDEO PATH CHECK

Page 44

NO picture on display via EXT-4 (YPbPr) input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-13

No picture on LCD screen when EXT-4 YPbPr input source selected

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT4"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

4) check if supported format is connected to EXT4

v yes

Are YPbPr signals arriving to pins 6(Y), 4(Pb) and 2(PR) on

connector X0215 ?

v yes

1. HD patch check

Check external connection, input setting, YPbPr connector and



peripheral circuits.

are YPbPr signals arriving to video switch TDA8601 (D1301)

at pins 3(Y), 2(Pb) and 4(Pr) ?

v yes

are YPbPr signals arriving to TDA9975AEL/10(D030), check on

capacitors: C033(Y), C034(Pb) and C030(Pr) ?

v yes

Is Hirate_MCLK 13,5MHz clock present on R0368 ?

v yes

Is TDA9975AEL/10(D030) Hirate_CLK clock there on R0325?,

are the CS (R0328), HS (R0330) and VS (R0331) signals there ?

AND are the VPA(x), VPB(x) and VPC(X) signals toggling on the

network resistors R030-R034 and on R0310-R0318?

v yes

GOTO VIDEO PATH CHECK

2. SD patch check

are YPbPr signals arriving to both sides of C0177(Pr), C0175(Y) and

C0164(Pb) ?

v yes

Is TDA15134E (D013) UOCV_DVCLK clock there

AND are the UOCV_DV(x) signals toggling?

v yes

are UOCV_DV(x) and UOCV_DVCLK signals arriving to

the CPLD (D080) (XC2C128-7TQG144C) ?

v yes

check C1317(Y), C1313(Pb), C1321(Pr) and check other peripheral



check YPbPr signals peripheral circuits (termination resistors, buffers



Check PNX5010E (D040) SW and its peripherals (power supply,



Check video switch TDA8601 (D1301) power supply (+8V_SW) and



V030,V031,V032 and other peripheral circuits)

TDA9975AEL/10 (Hirate) (D030) is not functioning normal,

check PNX SW, check if TM_SCL and TM_SDA are functioning

normal and check other peripherals (power supply,…) of D030

Check if SLCT_RGB_YPbPr is set correctly

TDA15134E (UOCV) (D013) is not functioning normal,

check GTV SW and peripherals (power supply,xtal,…) of D013

check resistor networks on UOCV_DV signals

circuits on YPbPr signals

XTAL,….)

peripherals

GOTO VIDEO PATH CHECK

Page 45

NO picture on display via EXT-5 (VGA) input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-14

No picture on LCD screen when EXT-5 (15pin D-SUB terminal) input

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT5"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

4) Check if supported format is connected to EXT5.

Are the VGA RGB video signals and H and V sync signals present

on pins 1(R), 2(G), 3(G) 13(H) and 14(V) on connector X070 on main

Are VGA_RGB signals present on both side of C071(R),

re H and V-sync signals present on both sides of R070(H sync) and

Is Hirate_MCLK 13,5MHz clock present on R0368 ?

Is TDA9975AEL/10(D030) Hirate_CLK clock there on R0325?,

are the CS (R0328), HS (R0330) and VS (R0331) signals there ?

AND are the VPA(x), VPB(x) and VPC(X) signals toggling on the

network resistors R030-R034 and on R0310-R0318?

source selected

v yes

PCB ?

v yes

C0380(G) and C072(B)?

v yes

R0730(V sync) ?

v yes

Check VGA (D-SUB-15) connector X070 and external connection.



Check peripheral circuits on the VGA_R, VGA_G and VGA_B



Check peripheral circuits on the VGA_HSYNC and VGA_CSYNC



Check PNX5010E (D040) SW and its peripherals (power supply,



TDA9975AEL/10 (Hirate) (D030) is not functioning normal,

check PNX SW, check if TM_SCL and TM_SDA are functioning

normal and check other peripherals (power supply,…) of D030

signals.

XTAL,….)

GOTO VIDEO PATH CHECK

Page 46

NO picture on display via EXT-6 (HDMI1) input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-15

No picture on LCD screen when EXT-6 (HDMI1) input source

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT6"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

4) Check if supported format is connected to EXT6. ==> (720p, 1080i, …)

5) Is correct video signal type applied from external HDMI device ? ==> Confirm the type (it should be "RGB", "YCbCr 4:4:4" or "YCbCr 4:2:2")

6) Is correct color matrix applied from external HDMI device ? ==> Confirm the type (it should be "ITU601" or "ITU709")

Are the HDMI signals ARX(+-) present on pins 1-12 on connector

Are the HDMI signals PARX(+-) present on both sides of the

commonmode chokes Z070, Z071, Z074 and Z075 ?

Are I2C signals (ARX_DDC_SDA and ARX_DDC_SCL) present on

EDID eeprom M24C02 (D071) pins 5 and 6 ?

Is Hirate_MCLK 13,5MHz clock present on R0368 ?

Is TDA9975AEL/10(D030) Hirate_CLK clock there on R0325?,

are the CS (R0328), HS (R0330) and VS (R0331) signals there ?

AND are the VPA(x), VPB(x) and VPC(X) signals toggling on the

network resistors R030-R034 and on R0310-R0318?

selected

v yes

X072 on main PCB ?

v yes



Check HDMI connector X072 and external connection.

Check commonmode chokes.

Check peripheral circuits on ARX_DDC_SDA/SCL and

PARX_DDC_SDA/SCL signals.

Check PNX5010E (D040) SW and its peripherals (power supply,

XTAL,….)

TDA9975AEL/10 (Hirate) (D030) is not functioning normal,

check PNX SW, check if TM_SCL and TM_SDA are functioning

normal and check other peripherals (power supply,…) of D030

GOTO VIDEO PATH CHECK

Page 47

NO picture on display via EXT-7 (HDMI2) input

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-16

No picture on LCD screen when EXT-7 (HDMI2) input source

Checklist:

1) Is "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" to "EXT7"

2) Is MENU-PICTURE-Contrast/Brightness set to "MIN" ? ==> Set it to appropriate level

3) Check connection to external device ==> Connect it correctly as per the operation manual for the device

4) Check if supported format is connected to EXT7. ==> (720p, 1080i, …)

5) Is correct video signal type applied from external HDMI device ? ==> Confirm the type (it should be "RGB", "YCbCr 4:4:4" or "YCbCr 4:2:2")

6) Is correct color matrix applied from external HDMI device ? ==> Confirm the type (it should be "ITU601" or "ITU709")

Are the HDMI signals BRX(+-) present on pins 1-12 on connector

Are the HDMI signals PBRX(+-) present on both sides of the

commonmode chokes Z0712, Z0714, Z0715 and Z0716 ?

Are I2C signals (BRX_DDC_SDA and BRX_DDC_SCL) present on

EDID eeprom M24C02 (D0705) pins 5 and 6 ?

Is Hirate_MCLK 13,5MHz clock present on R0368 ?

Is TDA9975AEL/10(D030) Hirate_CLK clock there on R0325?,

are the CS (R0328), HS (R0330) and VS (R0331) signals there ?

AND are the VPA(x), VPB(x) and VPC(X) signals toggling on the

network resistors R030-R034 and on R0310-R0318?

selected

v yes

X073 on main PCB ?

v yes



Check HDMI connector X073 and external connection.

Check commonmode chokes.

Check peripheral circuits on BRX_DDC_SDA/SCL and

PBRX_DDC_SDA/SCL signals.

Check PNX5010E (D040) SW and its peripherals (power supply,

XTAL,….)

TDA9975AEL/10 (Hirate) (D030) is not functioning normal,

check PNX SW, check if TM_SCL and TM_SDA are functioning

normal and check other peripherals (power supply,…) of D030

GOTO VIDEO PATH CHECK

Page 48

NO picture on Monitor out via tuner reception

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-17

SCART1:

No picture appears on EXT-1 - connected monitor

during tuner reception

Checklist:

1) Are input terminal on back of TV and "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" appropriatly

2) is the signal type (item) in MENU - OPTION - Input Slect equal to signal type of an external device ? ==> set it to "CVBS", "Y/C" or "RGB".

3) Is ANT-CABLE disconnected or connected improperly? ==> Connect it correctly as per the operation manual

4) The picture is sent to the monitor in a CVBS signal if the source during display is TV,CVBS or Y/C of EXT1-3. When sent by component, etc., that signal is not sent to the monitor.

5) When the monitor picture is not sent and is not displayed on the monitor, refer to "NO picture on display" for each terminal.

6) The video output from EXT1 is not the monitor output (output of the picture now watching). The picture of the last selected TV channel is always sent to EXT1. (specification)

v yes

Is video signal (CVBS) sent to pin19A of SCART1 (X027-1) ?

v no

Is video signal (CVBS) sent to R1371 ?

v no

TDA15143E (D013) is not functioning normal.

Is tuner reception visible on LCD screen ?

v no



yes



yes



yes

Check SCART1, external connection or input setting.

Check +5V_TV, check buffer peripherals (V1332, V1331) and check ESD protection diode (V1315) short to GND ?

Check R0124

Check TDA15143E (D013) peripherals or GTV SW

GOTO "NO picture on display via tuner reception (analog TV)"

Page 49

NO picture on Monitor out via EXT-1

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-18

SCART2: No picture from EXT-1 appears on EXT-2 - connected monitor Note: EXT2 has always the same picture as the picture on the

LCD screen

Checklist:

1) Are input terminal on back of TV and "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" appropriatly

2) is the signal type (item) in MENU - OPTION - Input Slect equal to signal type of an external device ? ==> set it to "CVBS", "Y/C" or "RGB".

3) Is ANT-CABLE disconnected or connected improperly? ==> Connect it correctly as per the operation manual

4) The picture is sent to the monitor in a CVBS signal if the source during display is TV,CVBS or Y/C of EXT1-3. When sent by component, etc., that signal is not sent to the monitor.

5) When the monitor picture is not sent and is not displayed on the monitor, refer to "NO picture on display" for each terminal.

6) The video output from EXT1 is not the monitor output (output of the picture now watching). The picture of the last selected TV channel is always sent to EXT1. (specification)

v yes

Is video signal (CVBS) sent to pin19B of SCART2 (X027-2) ?

v no

Is video signal (CVBS) sent to R01188 ?

v no

Is EXT1 input visible on LCD screen ?

v no



yes



yes



yes

Check SCART2, external connection or input setting.

Check +5V_TV, check buffer peripherals (V1321, V1330) and check ESD protection diode (V1322) short to GND ?

Check TDA15143E (D013) peripherals or GTV SW

GOTO "NO picture on display via EXT-1"

Page 50

NO picture on Monitor out via EXT-3

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-19

SCART2: No picture from EXT-3 appears on EXT-2 - connected monitor

Checklist:

1) Are input terminal on back of TV and "INPUT SOURCE" button on the remote control set up correctly ? ==> See operation manual and set "INPUT SOURCE" appropriatly

2) is the signal type (item) in MENU - OPTION - Input Slect equal to signal type of an external device ? ==> set it to "CVBS", "Y/C" or "RGB".

3) Is ANT-CABLE disconnected or connected improperly? ==> Connect it correctly as per the operation manual

4) The picture is sent to the monitor in a CVBS signal if the source during display is TV,CVBS or Y/C of EXT1-3. When sent by component, etc., that signal is not sent to the monitor.

5) When the monitor picture is not sent and is not displayed on the monitor, refer to "NO picture on display" for each terminal.

6) The video output from EXT1 is not the monitor output (output of the picture now watching). The picture of the last selected TV channel is always sent to EXT1. (specification)

v yes

Is video signal (CVBS) sent to pin19B of SCART2 (X027-2) ?

v no

Is video signal (CVBS) sent to R01188 ?

v no

Is EXT3 input visible on LCD screen ?

v no



yes



yes



yes

Check SCART2, external connection or input setting.

Check +5V_TV, check buffer peripherals (V1321, V1330) and check ESD protection diode (V1322) short to GND ?

Check TDA15143E (D013) peripherals or GTV SW

GOTO "NO picture on display via EXT-3"

Page 51

VIDEO PATH CHECK

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-20

are VDI_D(x) signals arriving to PNX5010E (D040) ?

v yes

are VDO_D(x) signals and CLK signal arriving to LVDS transmitter

D061 ?

v yes

are LVDS signals arriving to common mode chokes (Z060 - Z061 -

Z062 - Z063 - Z064) ?

v yes

are LVDS signals arriving to LVDS connector (X060) ?

v yes

is LVDS_POWER available at the LVDS connector (X060) ?

v yes

are LVDS power and LVDS signals available on

the LCD control unit ?

v yes

Is backlight ON ?

v yes



check CPLD (D080) power levels, peripherals, CPLD code

PNX5010E (D040) is not functioning normal, check PNX SW,

DDR-SDRAM, XTAL, power supply and other peripheral

check pin32 of D061 (power_down?) => check D063 signals and

peripherals, check other LVDS transmitter peripherals

check common mode chokes (Z060 - Z064)

Is +12V available ? NO => check PSU

YES => check DC/DC converter, check panel_power_enable signal

and peripherals

check LVDS wiring

GO TO backlight Faillure

replace LCD control unit

Page 52

No audio output during UHF/VHF reception

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-21

Is the set unmuted?

v yes

Is the volume set to "50"

v yes

Are headphones disconnected from the set?

v yes

Is the antenna properly connected?

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes



Is the audio signal (SIF) sent from the Tuner U011?



press the "mute" on the remote

press the "volume up" on the remote

until volume is "50"

remove the headphones plug from the set

Connect according to manual

Is the audio signal (SIF) sent to D013

Check Z010-4 and Z010-5

v no

Check U011-8

v no

Check 5V_tuner, AGC and I2C signals

Fixed?

v no

Replace tuner

Check +28V_audio and other D020 circuitery

Check connectors

Check +8V_TV(C019) and +5V_TV(C01113)



yes

Check circuitery of SAW filters (Z010 and



yes

and periferal circuit

Z011)

Check speakers and wiring

Page 53

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-22

EXT1 (SCART 1)

Is IN1-L audio signal sent from X027-1-6A (SCART1) to

D022-4 (TEA6422)

Is IN1-R audio signal sent from X027-1-2A (SCART1) to

D022-25 (TEA6422)

v yes



Check SCART connector (X027-1) and the cable to

device

Is the audio signal sent from D022-12 and D022-13 to

D013?

Check C0150 and C0152

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring



Check D022 circuitery (SDA/SCL,…)

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

Page 54

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-23

EXT2 (SCART 2)

Is IN1-L audio signal sent from X027-2-6B (SCART2) to

D022-5 (TEA6422)

Is IN1-R audio signal sent from X027-2-2B (SCART2) to

D022-24 (TEA6422)

v yes



Check SCART connector (X027-2) and the cable to

device

Is the audio signal sent from D022-12 and D022-13 to

D013?

Check C0150 and C0152

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring



Check D022 circuitery (SDA/SCL,…)

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

Page 55

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-24

EXT3 (Side IO)

Is the audio signal leaving the SideIO PCB?

Check on pin X014-5 and X014-7

v yes

Is audio signal present on mainboard connector X0208?

Check X0208-5 and X0208-7

v yes

Is audio signal arriving on D013?

Check C0158 and C0159

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal



if audio cable is connected according user manual,

check/replace SideIO

Check/replace cable

Check D010 input circuitery

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

v yes

Check speakers and wiring

Page 56

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-25

EXT4 (YPbPr-component)

Is YPbPr_L audio signal sent from X0215-10 to D022-6

(TEA6422)

Is YPbPr_R audio signal sent from X0215-8 to D022-23

(TEA6422)

v yes



Check connector (X0215) and the cable to device

Is the audio signal sent from D022-12 and D022-13 to

D013?

Check C0150 and C0152

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring



Check D022 circuitery (SDA/SCL,…)

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

Page 57

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-26

EXT5 (VGA)

Is PC_IL audio signal sent from X028-2-T to D022-9

(TEA6422)

Is PC_IR audio signal sent from X028-2-R to D022-20

(TEA6422)

v yes



Check connector (X028-2) and the cable to device

Is the audio signal sent from D022-12 and D022-13 to

D013?

Check C0150 and C0152

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring



Check D022 circuitery (SDA/SCL,…)

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

Page 58

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-27

EXT6 (DVI-adapter connected to HDMI1)

Is HDMI_IL audio signal sent from X028-1-T to D022-10

(TEA6422)

Is HDMI_IR audio signal sent from X028-1-R to D022-19

(TEA6422)

v yes



Check connector (X028-1) and the cable to device

Is a DVI source connected to the HDMI1 connector?

(using an adapter)

v yes

Is the audio signal sent from D022-12 and D022-13 to

D013?

Check C0150 and C0152

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring

Connect DVI source (Set will only switch to analog audio



Check +28V_audio and other D020 circuitery

when DVI signal is applied)

Check D022 circuitery (SDA/SCL,…)

Check D013 circitery (R0155, R0158…)

Check connectors

Page 59

No Sound from an external input device connected to

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-28

EXT6/7 (HDMI1/2)

Do you see the HDMI content displayed on the screen

v yes

Is audio signal sent from D013 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal

v yes

Check speakers and wiring



see no video on EXT6/7

Check D013 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

Page 60

No sound except from speakers

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-29

Audio output from the headphones

Is audio signal sent from D013 (TDA15134)?

Check R0151 and R0152

v yes

Is audio signal sent from D023 (TDA1308)?

Check TP0286 and TP0288

v yes

Is audio signal present on mainboard conn X0208?

Check X0208-9 and X0208-11

v yes

Is the audio signal arriving on the SideIO PCB?

Check on pin X014-11 and X014-12

v yes

Is the audio signal on the headphone terminal?

On SideIO PCB, connector X011-5

v yes

Check headphones



Check D013 circitery (R0151, R0152…)

Check D023 circuitery

Check V0213, V0216, Z0229 and Z0230

Check/replace cable

replace/check SideIO

Page 61

No sound except from speakers

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-30

Audio output from EXT1

Is audio signal sent from D013 (TDA15134)?

Check R0160 and R0162

v yes

Is audio signal arriving on X027 (SCART1)?

Check X027-1A and X027-3A

v yes

Check SCART cable



Check D013 circitery (R0160, R0162…)

Check connector/circuitery

Page 62

No sound except from speakers

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-31

Audio output from EXT2

Is audio signal sent from D013 (TDA15134)?

Check R01150 and R01151

v yes

Is audio signal arriving on X027-2 (SCART2)?

Check X027-2-1B and X027-2-3B

v yes

Check SCART cable



Check D013 circitery (R01150, R01151…)

Check connector/circuitery and R01203, R01209

Page 63

No sound except from speakers

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-32

Audio output from Line Out

Is audio signal sent from D013 (TDA15134)?

Check R01150 and R01151

v yes

Is audio signal arriving on X0215?

Check X0215-12 and X0215-14

v yes

Audio cables



Check D013 circitery (R01150, R01151…)

Check connector/circuitery and R01215, R01216

Page 64

DTV troubelshooting

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-33

The unit does not enter the DTV mode or the DVT menu

does not appear

v no

No video output during DTV reception

v no

No audio output during DTV reception



See section: "Does not enter DTV mode"

See section: "No video output on DTV"

See section: "No Audio output on DTV"

Page 65

The unit does not enter the DTV mode or the DVT menu

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-34

does not appear

Does LED H1101 flash on-off?

v no

Is 12V_DVB supplied to D1006-8

v yes

Check voltages:

+5VD on D1006-1 +3V3D on D1005-5 +2V5D on D1002-5 +1V2D on D1003-5

+1VD on D004-5

v yes

Do G1101 and G1001 oscillate?

v yes

Check +5V_tuner on U011-7

v yes



SW is running, check "No video output on DTV"

check if 12V is on R0978 and R08979. If not, PSU

problem

check circuit of corresponding DC/DC of LDO

Check periferal circuits of G1101and G1001

Check periferal circuits of D0911

Is pin D016-13 high level? (I2C select)

v yes

Check I2C data/clk on tuner pins U011-4 and U011-5

v yes

Check D1001 (demod) and D1101 periferal circuits



Check circuit of D018 (inverter) and D1410 (Atmel)

Check D1001 (demod) and D1101-4 and D1101-5

Page 66

No video output during DTV reception

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-35

Is transport stream from D1001 to D1101 present?

Check: D1001-33,35,36,37,39,40,42,43,44,46,47

v yes

Is a smartcard inserted in the Common Interface

connector

v yes v yes

Check if TS_SWITCH = High

v yes v yes

Check D1101-120 periferal circuitery



Check resistor networks: R1037, R1038

Check resistors: R1034,R1035 and R1036

Check if TS_SWITCH = High

Is transport stream on the output of D1212, D1213 and

D1214

Is transport stream on input of D1101-

38,39,40,41,43,44,45,33,34,35,36

v yes

Is video (YPbPr and CVBS) measured on D1107

inputs?

v yes

Is video (YPbPr and CVBS) measured on D1302

inputs? (D1302-2,D1302-3 and D1302,4)

v yes

Is a LOW level on SLCT_RGB_YPbPr?

Check D1302-5

v yes

Is video measured on input of D010?

Check: C0178, C0176, C0165

v yes

check resistor networks: R1101, R1102,



Check capacitors C1196,C1197,C1198 and



Check iput capacitors: C1329, C1333 and



Check D1410 / preriferal circuitery

Check D1302 periferal circuitery

DR1203

C1199

C1337

See: no picture sections

Page 67

No audio output during DTV reception

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-36

Is audio measured at D1101 audio output?

Check D1101-28/29 and D1101-24/25

v yes

Is audio measured behind D1106 (OpAMP)?

Check R1121 and R1122

v yes

Is audio measured on the input of D010?

Check C0153 and C0155

v yes

Is audio signal sent from D010 (TDA15134)?

Check R0155 and R0158

v yes

Is audio signal sent from D020 (TDA8932)?

Check D020-27/30 and D020-19/22

v yes

Is audio signal on X022 and X021 normal



Check D1101 periferal circuitery

Check D1106 periferal circuitery

Check D010 input periferal circuitery

Check D010 circitery (R0155, R0158…)

Check +28V_audio and other D020 circuitery

Check connectors

v yes

Check speakers and wiring

Page 68

Power unit operation check (SHPWR0000136)

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-37

Are the power cord and extension cable in the unit properly connected?

Connect the power cord and extension cable properly, and turn on the power again.

Yes

Is F1 normal ?

Is F2 normal ?

Yes

Is a 390~450V voltage on the C8?

Yes

Are both components (VR2 and VR3) Low impedance when checking their resistance values?

Yes

Replace F1

Is it low impedance when checking the C5&C8 Resistance values?

Yes

Replace F2

Is it not enough 390Vdc?

Yes

Is there power down signal (3~3.4V) on the PIN 3 of CX400 between the PIN 2 of CX200?

Does the PSU_STBY Voltage from system?

Yes

Continued on next page.

Yes

Check PFC stage, including D5,L2,Q2,Q3 and IC1

Is there 3.3V output on the C94

Yes

To check Q8 and PC5.The Q8 and PC5 was conducted when the AC voltage applied to P S U.

Replace PSU.

Page 69

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-38

Does the PSU_STBY voltage (control signal) from the Pin2 of CX400

Yes

Is a voltage of approx. 13~15V Applied to Pin 6 of IC3, Pi n14 of IC1 and Pin 12 of IC2?

Yes

The PSU shall be working normal

Replace PSU.

Check CX400 wireharness between PSU to Main board is connected?

No bias was caused by protection loop being tripped.

Turn on the PSU again after rechecking each connector was in position.

The output was short-circuited. Check the resistance between positive an d negative from each output. Turn on the PSU again after remove fault situation.

Replace PSU.

Page 70

Power unit operation check (SHPWR0000137)

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-39

Are the power cord and extension cable in the unit properly connected?

Connect the power cord and extension cable properly, and turn on the power again.

Yes

Is F1 normal ?

Is F2 normal ?

Yes

Is a 390~450V voltage on the C8?

Yes

Are both components (VR2 and VR3) Low impedance when checking their resistance values?

Yes

Replace F1

Is it low impedance when checking the C5&C8 Resistance values?

Yes

Replace F2

Is it not enough 390Vdc?

Yes

Is there power down signal (3~3.4V) on the PIN 3 of CX400 between the PIN 2 of CX200?

Does the PSU_STBY Voltage from system?

Yes

Continued on next page.

Yes

Check PFC stage, including D5,L2,Q2,Q3 and IC1

Is there 3.3V output on the C94

Yes

To check Q8 and PC5.The Q8 and PC5 was c ond uc ted when the AC voltage applied to P S U.

Replace PSU.

Page 71

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

6-40

Does the PSU_STBY voltage (control signal) from the Pin2 of CX400

Yes

Is a voltage of approx. 13~15V Applied to Pin 6 of IC3, Pi n14 of IC1 and Pin 12 of IC2?

Yes

The PSU shall be working normal

Replace PSU.

Check CX400 wireharness between PSU to Main board is connected?

No bias was caused by protection loop be tripped.

Turn on PSU again after rechecking each connector was in position.

The output was short-circuited. Check the resistance between positive and negative from each output. Turn on the PSU again after remove fault situation.

Replace PSU.

Page 72

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

CHAPTER 7. MAJOR IC INFORMATION

[1] MAJOR IC INFORMATION

[1.1] General ICs Information

Ref No. Name Part Code Description

T uner Part

U011 Tuner TD1318AF MK3 Tuner modules for analogue and digital terrestrial (OFDM)

applications

• Highly integrated single conversion tuner

• +5V supply voltage only; no external tuning voltage required

• DC – power output through RF-input connector (e.g. indoor antenna supply)

• Superior low noise and high sensitivity performance

• Suitable for analogue and digital applications

• Compliant to relevant standards e.g. CENELEC and Nordig

• Small size (50mm x 44mm x 14mm)

• RF-AGC monitor via I2C status byte

D016 I2C switch 74LVC4066PW The 74LVC4066 is a high-speed Si-gate CMOS device.

The 74LVC4066 has four independent analogue switches. Each switch has two input/output terminals (nY and nZ) and an

active HIGH enable input (nE). When nE is LOW, the analogue switch is turned off.

Analogue Part (Video)

D013 UOC processor TDA15134E The UOCV series is a versatile Video Signal Processor (VSP)

for LCD TV that combines the functions of IF demodulator, multi standard color decoder, FLASH embedded TEXT/Control/ Graphics micro controller (TCG micro controller) with 100 page text memory, US Closed Caption decoder, multi-standard stereo sound decoder, and an audio DSP that can perform multi-channel decoding and various spatial sound processing algorithms. The digital video output can be configured as 3 times 8 or 10 bit parallel RGB, or as 8 or 10 bit multiplexed YUV (ITU 656).

D012 DRAM memory K4S161622H-UC7 The K4S161622H is 16,777,216 bits synchronous high data

rate Dynamic RAM organized as 2 x 524,288 words by 16 bits, fabricated with the SAMSUNG® high performance CMOS technology . Synchr onous design allows precise cycle control with the use of system clock I/O transactions are possible on every clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.

D014 EEPROM M24C32-WMN6 These I2C-compatible electrically erasable programmable

memory (EEPROM) devices are organized as 4096 × 8 bits.

7 - 1

Page 73

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E

Ref No. Name Part Code Description

D040 PNX processor PNX5010E The PNX1500 Media Processor Series is a complete Audio/

Video/Graphics system on a chip that contains a highperformance 32-bit VLIW processor, TriMediaä TM3260, capable of high quality software video (multi-video standard digital decoder/ encoder and image improvement), audio signal processing, as well as general purpose control processing. It can either be used in standalone, or as an accelerator to a general purpose processor. The PNX1500 processes the input signals by utilizing several Audio/Video and co-processor modules before send them to the external peripherals. These modules provide additional video and data processing bandwidth without taking away precious CPU cycles. The combination of the CPU and co-processor modules makes the PNX1500 System On-Chip (SoC) suitable for most applications, especially those requiring high level of processing power/ throughput at a reduced cost.

D050 DDR memory K4H561638F-UCC The K4H280438E / K4H280838E / K4H281638E is

134,217,728 bits of double data rate synchronous DRAM organized as 4x 8,388,608 / 4x 4,194,304 / 4x 2,097,152 words by 4/ 8/16bits, fabricated with SAMSUNG’s high performance CMOS technology. Synchronous features with Data Strobe

D051 DDR memory K4H561638F-UCC

allow extremely high performance up to 333Mb/s per pin. I/O transactions are possible on both edges of DQS. Range of operating frequencies, programmable burst length and programmable latencies allow the device to be useful for a variety of high performance memory system applications.

D052 Flash memory KFG5616U1A-PIB OneNAND™ is a monolithic integrated circuit with a NAND

Flash array using a NOR Flash interface. This device includes control logic, a NAND Flash array, and 3KB of internal BufferRAM. The BufferRAM reserves 1KB for boot code buffering (BootRAM) and 2KB for data buffering (DataRAM), split between 2 independent buffers. It has a x16 Host Interface and a random access time speed of ~76ns. The device operates up to a maximum host-driven clock frequency of 54/66MHz for synchronous reads at Vcc (or Vccq.) with minimum 4-clock latency. Below 40MHz it is accessible with minimum 3-clock latency. Appropriate wait cycles are determined by programmable read latency. OneNAND™ provides for multiple sector read operations by assigning the number of sectors to be read in the sector counter register. The device includes one block-sized OTP (One Time Programmable) area that can be used to increase system security or to provide identification capabilities.

D080 CPLD XC2C128-7TQG14 Xilinx CoolRunner™-II CPLDs deliver the high speed and ease

of use associated with the XC9500/XL/XV CPLD family with the extremely low power versatility of the XPLA3™ family in a single CPLD. This means that the exact same parts can be used for high-speed data communications/ computing systems and leading edge portable products, with the added benefit of In System Programming. Low power consumption and high-speed operation are combined into a single family that is easy to use and cost effective. Clocking techniques and other power saving features extend the users’ power budget. The design features are supported starting with Xilinx ISE 4.1i ISE WebPACK.

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Ref No. Name Part Code Description

D030 HDMI receiver TDA9975AEL/10 The TDA9975A is a combination of a three inputs triple 10-bit

video converter interface and of a two inputs High-Definition Multimedia Interface (HDMI) receiver with embedded HDCP keys memory. The IC converts a YUV (YPBPR) analogue signal into a YUV (YCBCR) or RGB digital signal or converts an RGB analogue signal into a RGB or YUV (YCBCR) digital signal with a sampling rate up to 100 Mbps.

D041 EEPROM M24C32-WMN6 These I2C-compatible electrically erasable programmable

memory (EEPROM) devices are organized as 4096 × 8 bits.

D070 EEPROM M24C02-WMN6 These I2C-compatible electrically erasable programmable

memory (EEPROM) devices are organized as 128 x 8.

D071 EEPROM M24C02-WMN6 These I2C-compatible electrically erasable programmable

memory (EEPROM) devices are organized as 128 x 8.

D061 LVDS IC DS90C385AMT The DS90C385 transmitter converts 28 bits of LVCMOS/LVTTL

data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 85 MHz, 24 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 595 Mbps per LVDS data channel. Using a 85 MHz clock, the data throughput is 297.5 Mbytes/sec.

D1301 Video Switch TDA8601 T/C2 The device is intended for switching between two RGB or YUV

video sources. The outputs can be set to a high-impedance state to enable parallel connection of several devices. A HIGH level on SEL (pin 5) selects the video inputs of channel 2. The IOCNTR control pin (pin 16) defines the 3-state outputs and

D1302 TDA8601T/C2

clamp inputs:

• HIGH = 3-state outputs (also for test; active clamp)

• LOW = passive clamp at the video inputs (diode)

• Sandcastle: the video signal is clamped with an active clamp during the sync pulse.

D0705 EEPROM M24C02-WMN6 These I2C-compatible electrically erasable programmable

memory (EEPROM) devices are organized as 128 x 8.

D1410 Amtel processor ATTINY2313V-10 The AVR core combines a rich instruction set with 32 general

purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC micro controllers.

Analogue Part (Audio)

D020 Class D AMP TDA8932T This is a Switched Mode Amplifier (SMA) for audio, based on

the TDA8932 or TDA8933 device of Philips Semiconductors operating from an asymmetrical supply. The TDA8932 device and the TDA8933 device are pin-to-pin compatible and can be used in either a stereo SE configuration or a mono BTL configuration. The TDA8932 is the high-power version and the TDA8933 is the low-power version and together cover a wide power range per channel of 5 WRMS to 50 WRMS. The two versions are available in the SO32 package and HTSSOP32 package.

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Ref No. Name Part Code Description

D022 Audio Switch TEA6422D The TEA6422 switches 6 stereo audio inputs on 3 stereo

outputs. All the switching possibilities are changed through the I2C BUS.

D023 Headphone AMP TDA1308T The TDA1308; TDA1308A is an integrated class AB stereo

headphone driver contained in an SO8, DIP8 or a TSSOP8 plastic package. The device is fabricated in a 1 mmCMOS process and has been primarily developed for portable digital audio applications. The difference between the TDA1308 and the TDA1308A is that the TDA1308A can be used at low supply voltages.

Analogue Part (Voltage Regulation)

D031 Audio DAC UDA1334ATS The UDA1334ATS is a single chip 2 channel digital-to-analog

converter employing bit stream conversion techniques, including an on-board PLL. The extremely low power consumption and low voltage requirements make the device eminently suitable for use in low-voltage low-power portable digital audio equipment which incorporates a playback function.

D032 Voltage Regulator LD1117DT33 The LD1117 is a LOW DROP Voltage Regulator able to provide

up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.2V,1.8V ,2.5V,2.85V, 3.0V 3.3V and 5.0V .

D090 DC/DC converter LT1940EFE The LT®1940 is a dual current mode PWM step-down DC/DC

converter with internal 2A power switches. Both converters are synchronized to a single 1.1MHz oscillator and run with opposite phases, reducing input ripple current. The output voltages are set with external resistor dividers, and each

D091 DC/DC converter LT1940EFE

regulator has independent shutdown and soft-start circuits. Each regulator generates a power-good signal when its output is in regulation, easing power supply sequencing and interfacing with micro controllers and DSPs.

D096 step down regulator L5973D The L5973D is a step down monolithic power switching

regulator with a minimum switch current limit of 2.5A so it is able to deliver more than 2A DC current to the load depending on the application conditions.The output voltage can be set from 1.235V to 35V.

D0910 Voltage regulator LD1117DT50 The LD1117 is a LOW DROP Voltage Regulator able to provide

up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.2V,1.8V ,2.5V,2.85V, 3.0V 3.3V and 5.0V .

D0911 Voltage regulator LD1117DT50 The LD1117 is a LOW DROP Voltage Regulator able to provide

up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.2V,1.8V ,2.5V,2.85V, 3.0V 3.3V and 5.0V .

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Ref No. Name Part Code Description

D0918 Voltage regulator MC34063A The MC34063A Series is a monolithic control circuit containing

the primary functions required for DC to DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series was specifically designed to be incorporated in StepDown and StepUp and V oltageInverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information.

D0920 Power Switch ST890CDR The ST890 is a low voltage, P-Channel MOSFET power switch

intended for high side load switching applications. This switch operates with inputs from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. Internal current limiting circuitry protects the input supply against overload. Thermal overload protection limits power dissipation and junction temperatures. The ST890’s maximum current limits is 1.2A. The current limit through the switch is programed with a resistor from SET to ground. The ST890 is available in SO-8 package. Main applications are: PCMCIA slots, Access bus slots, Portable equipment.

D0925 Voltage regulator MC78L08ABDR2G The MC78LXXA/LM78LXXA/MC78L05AA series of fixed

voltage monolithic integrated circuit voltage regulators are suitable for application that required supply current up to 100mA.

Digital Part

D1001 Demodulator STv0362 The STv0362 features the full DVB-T and DVB-H standards

framing structure, channel coding and modulation. The symbol, timing and carrier recovery loops are fully digital and sized with regard to the state-of-the-art RF down-converting devices. The STv0362 is compatible with direct conversion tuners featuring two differential ADC for I and Q channels. The tuner baseband power is controlled by a classic AGC loop, and the radio frequency level is monitored by a dedicated single-ended 8-bit ADC. It is recommended the RF power is left under the tuner’s control, but can be derived from baseband power by a dedicated power split algorithm. If required, the tuner serial I2C bus can be isolated by the STv0362 I2C bus repeater.

D1101 DTV processor STx5105 The STx5105 sets a new standard for set-top box decoder ICs,

delivering outstanding performance, features and innovations to dramatically reduce cost compared with previous generations. Based on the Omega 2 architecture, the STx5105 takes advantage of STMicroelectronics' superior IP and interconnect technology to meet the latest requirements for low cost, high performance set-top box architectures in cable, satellite and digital terrestrial set-top boxes.

D1102 DDR-RAM K4H561638F-UCC The K4H560838F / K4H561638F is 268,435,456 bits of double

data rate synchronous DRAM organized as 4x 8,388,608 / 4x 4,194,304 words by 8 / 16bits, fabricated with SAMSUNG's high performance CMOS technology. Synchronous features with Data Strobe allow extremely high performance up to 400Mb/s per pin. I/O transactions are possible on both edges of DQS. Range of operating frequencies, programmable burst length and programmable latencies allow the device to be useful for a variety of high performance memory system applications.

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Ref No. Name Part Code Description

D1103 Flash memory M29W160ET90N6 The M29W160E is a 16 Mbit (2Mb x8 or 1Mb x16) non-volatile

memory that can be read, erased and reprogrammed. These operations can be performed using a single low voltage (2.7 to

3.6V) supply. On power-up the memory defaults to its Read mode where it can be read in the same way as a ROM or EPROM.

D1107 Video filter FMS6145MTC14 The FMS6145 Low-Cost Video Filter (LCVF) is intended to

replace passive LC filters and drivers with a low-cost integrated device. Five 4th-order filters provide improved image quality compared to typical 2nd or 3rd-order passive solutions. The FMS6145 may be directly driven by a DC-coupled DAC output or an AC-coupled signal. Internal diode clamps and bias circuitry may be used if AC-coupled inputs are required.

D1207 Buffer 74LVC245APW The 74LVC245A/74LVCH245A is an octal transceiver with non-

inverting 3-state bus compatible outputs in both send and receive directions. The 74LVC245A/74LVCH245A has an output enable (OE) input for easy cascading and a send/receive (DIR) input for direction control. OE controls the outputs so that the buses are effectively isolated.

D1211 Power Switch ST890CDR The ST890 is a low voltage, P-Channel MOSFET power switch

D1212 multiplexer 74LVC157APW The 74LVC157A is a quad 2-input multiplexer which select four

bits of data from two sources under the control of a common select input (S). The four outputs present the selected data in

D1213 74LVC157APW

the true (non-inverted) form. The enable input (E) is active LOW. When pin E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all the other input conditions. Moving

D1214 74LVC157APW

the data from two groups of registers to four common output buses is a common use of the 74LVC157A. The state of the common data select input (S) determines the particular register

D1221 buffer 74L VC244APW The 74LVC244A is a low voltage CMOS OCT AL BUS BUFFER D1222 74LVC244APW D1224 74LVC244APW D1225 74LVC244APW D1226 74LVC244APW

Digital Part (Voltage Regulation)

D1002 dc/dc converter L6926 The device is dc-dc monolithic regulator specifically designed D1003 L6926 D1005 L6926

(3-ST ATE) fabricated with sub-micron silicon gate and double layer metal wiring C2MOS technology. It is ideal for 1.65 to 3.6 VCC operations and low power and low noise applications.

to provide extremely high efficiency. L6926 supply voltage can be as low as 2V allowing its use in single Li-ion cell supplied applications. Output voltage can be selected by an external divider down to 0.6V.

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Ref No. Name Part Code Description

D1004 voltage regulator ST1L04PT The ST1L04 is a low drop adjustable linear voltage regulator

capable to supply up to 1A output current. The output voltage can be as low as 0.8V. The quiescent current is well controlled and maintained below 3mA over the whole allowed junction temperature range. The ST1L04 is stable only with low ESR output ceramic capacitors. Internal protection circuitry includes thermal protection with hysteresis and over current limiting.

D1006 switching regulator L5973D The L5973D is a step down monolithic power switching

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[1.2] Detailed ICs Information

[1.2.1] Tuner (TD1318AF MK3)

7 - 8

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[1.2.2] 12C Switch (74LVC4066PW)

7 - 9

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[1.2.3] UOC Processor (TDA15134E)

7 - 10

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[1.2.4] DRAM Memory (K4S161622H-UC7)

[1.2.5] EEPROM (M24C32-WMN6)

7 - 11

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[1.2.6] PNX Processor (PNX5010E)

7 - 12

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[1.2.7] DDR Memory (K4H561638F-UCC)

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[1.2.8] Flash Memory (KFG5616U1A-PIB)

[1.2.9] CPLD (XC2C128-7TQG14)

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[1.2.10] HDMI Receiver (TDA9975AEL/10)

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[1.2.11] LVDS IC (DS90C385AMT)

[1.2.12] Video Switch (TDA8601T/C2)

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[1.2.13] Amtel Processor (ATTINY2313V-10)

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[1.2.14] Class D AMP (TDA8932T)

[1.2.15] Audio Switch (TEA6422D)

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[1.2.16] Headphone AMP (TDA1308T)

[1.2.17] Voltage Regulator (UDA1334ATS)

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[1.2.18] Voltage Regulator (LD1117DT33)

[1.2.19] DC/DC Converter (LT1940EFE)

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[1.2.20] Step Down Regulator (L5973D)

[1.2.21] Voltage Regulator (LD1117DT50)

[1.2.22] Voltage Regulator (MC34063A)

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[1.2.23] Power Switch (ST890CDR)

[1.2.24] Voltage Regulator (MC78L08ABDR2G)

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[1.2.25] Demodulator (STv0362)

[1.2.26] DTV Processor (STx5105)

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[1.2.27] DDR-RAM (K4H561638F-UCC)

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[1.2.28] Flash Memory (M29W160ET90N6)

[1.2.29] Video Filler (FMS6145MTC14)

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[1.2.30] Buffer (74LVC245APW)

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[1.2.31] Multiplexor (74LVC157APW)

[1.2.32] Buffer (74LVC244APW)

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[1.2.33] DC/DC Converter (L6926)

[1.2.34] Voltage Regulator (ST1L04PT)

[1.2.35] Switching Regulator (L5973D)

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CHAPTER 8. OVERALL WIRING DIAGRAM

[1] OVERALL WIRING DIAGRAM (LC-32WD1E/S/RU, LC-32WT1E)

CN7501

B14B-PASK-1

CBL000388A

X520

B14B-PH-K-S

BM V 2B M7.92 VA BK

X002

CBL000387

via PCB

Internal connected

X400

B8B-PH-K-S

X300

B4B-PH-K-S

X200

B10B-PH-K-S

CN2

X061

FI-X30SSL-HF

CN1 (LVDS)

9 8 3 0 0 0 L B C

0-1453230-3

SM07B-GHS-TB

S7B-PH-K-S

CBL000380

X0911

X060

B8B-PASK-1

CN7502

X062

1 9 3 0 0 0 L B C

9 3 0 0 0 L B C

S5B-PH-K-S

EXT7

S8B-PH-K-S

EXT5 EXT6

L/R

OUT

EXT4

EXT2

TVCI-SLOT

X011

EXT1

CBL000379

X0910

S4B-PH-K-S

9 4

X090

S10B-PH-K-S

CBL000378

length

and 37"

42" LCD-TV, except for the

Dedicated wires for 32"

Common wires for 32", 37" and

CBL000385

2 2

CBL000384

Fast on connections

X022

S3B EH

X021

S2B EH

Video-Y/C

8 - 1

S13B-PH-K-S

X0208

X014

S12B-PH-K-S

EXT3

Audio L

Video-CVBS

CBL000381

Audio-R

RS-232

S2B-PH-K-S

X012

X011

S2B-PH-K-S

2 8 3 0 0 0 L B C

S9B-PH-K-S

X013

3 8 3 0 0 0 L B C

X011

OPC

Sleep

S9B-PH-K-S

Power/

OPC

LED

remote LED

sensor

Headphone