Sharp LC-13C3U Service Manual

LC-20C3U-SSERVICE MANUALIn the interests of user-safety (Required by safety regulations in some countries) the set should be restoredto its original c

10LC-20C3U-SREMOVING OF MAJOR PARTS1. Remove the table stand fixing screws (4 pcs.).2. Remove the two terminal covers.3. Remove the terminal section f

11LC-20C3U-S10. Remove the inverter-A PWB fixing screws (1 pc.).11. Remove the inverter-B PWB fixing screws (1 pc.).12. Remove the digital PWB fixing

12LC-20C3U-S» Precautions in handling the LCD panels1. Work in a clean room (with humidities below 50%).2. Be sure to wear an anti-static armband.3. H

13LC-20C3U-SPrecautions at the time of the side B(back) service of Digital unit.1. Remove only SC2001 of the FFC for connection between Digital unit(S

14LC-20C3U-SADJUSTING PROCEDURE OF EACH SECTIONThe best adjustment is made before shipping. If any position deviation is found or after part replace i

15LC-20C3U-S4. Adjustments1 B+ Adjustment(R3760)2 Inch Size setup(If E2PROM is replaced)(IC2004)3 Common-bias adjustment4 TAMP adjustment5 White balan

16LC-20C3U-S5. Shipping setting listChannel...

17LC-20C3U-STest patterns in adjustment process mode[1] IC801 (Video decoder) test patterns1-1. Getting the test patterns displayedPut the screen in A

18LC-20C3U-SNo. Pin name Function1 V HOLD2 HLF3 MAIN SW4 TIMELED5 M/S OUT6 CSYNC7 IREM18 BYTE9 CNVSS10 XCIN11 XOUT12 RESET13 XOUT14 GND15 XIN16 VCC17

19LC-20C3U-SAdjustment process mode menus at a glancePage ItemInitial settingFunction Adjust/modify1 MODEL A460 Model numberINCH SIZE 20 Inch unit sel

2LC-20C3U-SCAUTION: FOR CONTINUEDPROTECTION AGAINST A RISK OFFIRE REPLACE ONLY WITH SAMETYPE F3701 (2.0A, 125V), F3702(1.6A, 125V), F6700 (1.0A, 125V

20LC-20C3U-S8 I2C DATA 0 I2C bus control IC data write & readI2C DATA WAIT Write & read executionCBW 1 Chroma band pass settingNOSEL 3 Comb fi

21LC-20C3U-SPage ItemInitial settingFunction Adjust/modify9 VPC DATA 0 Video IC VPC data write & readVPC DATA WAIT Write & read executionTEST

22LC-20C3U-SPage ItemInitial settingFunction Adjust/modify14 SECAM AV COLOR 2500 Color density setting (Composite, S video)SECAM AV TINT +56 Color ton

23LC-20C3U-SPage ItemInitial settingFunction Adjust/modify18 NTSC F1 00 Inverter frequency settingNTSC F2 00 Inverter duty settingNTSC F3 C0 Dimmer fr

24LC-20C3U-SPage ItemInitial settingFunction Adjust/modify22 3D Y/C 2 3D ON/OFF setting3D Y/C DATA 0 3D YC data write & read3D Y/C DATA WAIT Write

25LC-20C3U-SPUBLIC MODE1. OutlineThe Public mode is designed to limit the functions of LCD TV sets that are set up at hotels, public places (hospitals

26LC-20C3U-S5. Quitting the Public modeHold down the [TV/VIDEO] and [MENU] buttons at once, and press the MAIN POWER switch to power on the TVset.Then

27LC-20C3U-STROUBLE SHOOTING TABLENoNo Power (Power LED indicator still in red)Go to the adjustment process mode.Move the cursor to ERROR NO RESET and

28LC-20C3U-STROUBLE SHOOTING TABLE (Continued)No pictureNo picture at allYesNoYesNoNoNo VIDEO 1 or 2 outputYesNoNoYesNoYesNoNoNo S VIDEO outputYesYesN

29LC-20C3U-SNo picture and soundYesNoNoYesYesNoYesNoFluorescent lamp YesNoYesNoYesNoYesYesReplace F6700, F6701, F6702, F6703, and F6704.Check the line

3LC-20C3U-SPRECAUTION: POUR LAPROTECTION CONTINUE CONTRELES RISQUES D'INCENDIE,REMPLACER LE FUSIBLE PAR UNFUSIBLE DE MEME TYPE F3701(2.0A, 125V),

30LC-20C3U-SNo colorNo TV colorNo S-VIDEO colorNoNo VIDEO colorNo COMPONENT colorNoIs input at Pin (71) of IC801 as specified?Check SC3405,IC7101, SC

31LC-20C3U-STROUBLE SHOOTING TABLE (Continued)No sound from speakersYesNoNo soundNoYesNoYesYesNoNoYesNo sound from headphoneYesNoNo sound from output

3287109654321AB CDEFGHLC-20C3U-SCHASSIS LAYOUTANALOG UnitCONTROL UnitDIGITAL UnitR/C, LED Unit

331716 1918151413121110LC-20C3U-SINVBERTER-A UnitINVBERTER-B Unit

3487109654321AB CDEFGHLC-20C3U-SBLOCK DIAGRAM

351716 1918151413121110LC-20C3U-S

3687109654321AB CDEFGHLC-20C3U-SOVERALL WIRING DIAGRAM

371716 1918151413121110LC-20C3U-S

38LC-20C3U-SVOLTAGE MEASUREMENT CONDITION:1. The voltages at test points are measured onexclusive AC adaptor and the stble supply voltageof AC 120V.

39654321ABCDEFGHLC-20C3U-SSCHEMATIC DIAGRAMËR/C, LED and CONTROL Unit

4LC-20C3U-SPrecautions for using lead-free solder1 Employing lead-free solder"All PWBs" of this model employs lead-free solder. The LF symbo

4087109654321AB CDEFGHLC-20C3U-SËDIGITAL Unit-1/5

411716 1918151413121110LC-20C3U-S

4287109654321AB CDEFGHLC-20C3U-SËDIGITAL Unit-2/5

431716 1918151413121110LC-20C3U-S

4487109654321AB CDEFGHLC-20C3U-SËDIGITAL Unit-3/5

451716 1918151413121110LC-20C3U-S

4687109654321AB CDEFGHLC-20C3U-SËDIGITAL Unit-4/5

471716 1918151413121110LC-20C3U-S

4887109654321AB CDEFGHLC-20C3U-SËDIGITAL Unit-5/5

491716 1918151413121110LC-20C3U-S

5LC-20C3U-SSPECIFICATIONSSpecifications are subject to change without prior notice.ItemsLCD panelNumber of dots 921,600 dots VGAVideo color systems N3

5087109654321AB CDEFGHLC-20C3U-SËANALOG Unit-1/3

511716 1918151413121110LC-20C3U-S

5287109654321AB CDEFGHLC-20C3U-SËANALOG Unit-2/3

531716 1918151413121110LC-20C3U-S

5487109654321AB CDEFGHLC-20C3U-SËANALOG Unit-3/3

551716 1918151413121110LC-20C3U-S

56654321ABCDEFGHLC-20C3U-SËINVERTER-A Unit

57654321ABCDEFGHLC-20C3U-SËINVERTER-B Unit

58654321ABCDEFGHLC-20C3U-SPRINTED WIRING BOARD ASSEMBLIESDIGITAL Unit (Side-A)

59654321ABCDEFGHLC-20C3U-SDIGITAL Unit (Chip Parts Side-A)

6LC-20C3U-SOPERATION MANUALVIDEOS-VIDEOAUDIOHEADPHONELRAV-IN1VIDEOAUDIOLRAV-IN2/OUTYANT.POWERINPUTDC13VCOMPONENTLRAUDIOPBPRANT.YPBPRAUDIOLRPOWERINPUTD

60654321ABCDEFGHLC-20C3U-SDIGITAL Unit (Side-B)

61654321ABCDEFGHLC-20C3U-SDIGITAL Unit (Chip Parts Side-B)

62654321ABCDEFGHLC-20C3U-SR/C, LED Unit (Side-A)R/C, LED Unit (Chip Parts Side-A)CONTROL Unit (Side-A)(QPWBSB618WJN1)CONTROL Unit (Chip Parts Side-A)(

63654321ABCDEFGHLC-20C3U-SANALOG Unit (Side-A)

6487109654321AB CDEFGHLC-20C3U-SR3755R3757P3704J3701FH3701 FH3702TU3201R3207R3208C3205C3213C3211C3212C3214C3210C3208R3348C3328J3409R3351L3202C3329 R34

651716 1918151413121110LC-20C3U-SANALOG Unit (Chip Parts Side-A)C3515R3532L3500Q3505R3536R3535C3519R3540R3537R3538Q3504C3514R3533C3512R3534C3440L3404C

66654321ABCDEFGHLC-20C3U-SINVERTER-A Unit (Side-A)

67654321ABCDEFGHLC-20C3U-SINVERTER-A Unit (Chip Parts Side-A)C6712R6708Q6706R6710C6713Q6708R6709Q6707R6711C6727L6704R6722D6700P6705Q6704R6721R6720R670

68654321ABCDEFGHLC-20C3U-SINVERTER-B Unit (Side-A)

69654321ABCDEFGHLC-20C3U-SINVERTER-B Unit (Chip Parts Side-A)R6719R6718C6723Q6714C6740C6724Q6709Q6710R6712R6713C6717C6719R6724R6723Q6711D6701C6718P670

7LC-20C3U-SListening with HeadphonesDISPLAY AND CONTROL OVERVIEW (Continued)Before connecting cables and cords to the rear terminals, remove theback c

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code70LC-20C3U-SRef. No. Part No. ★ Description CodeRef. No. Part No. ★ Descripti

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code71LC-20C3U-SDUNTKB273FE09DIGITAL UNIT (Continued)Q1101 VS2SA1729//-1Y J 2SA17

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code72LC-20C3U-SDUNTKB273FE09DIGITAL UNIT (Continued)C1135 VCKYCY1EF104ZY J 0.1 2

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code73LC-20C3U-SDUNTKB273FE09DIGITAL UNIT (Continued)R807 VRS-CY1JF750JY J 75 1/1

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code74LC-20C3U-SR1260 VRS-CY1JF000JY J 0 1/16W Metal Oxide AAR1261 VRS-CY1JF000JY

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code75LC-20C3U-SDUNTKB416DE02INVERTER A UNITTRANSISTORSQ6700 VSFZT1053A/-1Y J FZT

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code76LC-20C3U-SD3705 VHD1SS250//1EY J Diode ABD3706 VHDSFPB74//2EY J Diode ADD37

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code77LC-20C3U-SDUNTKB617DE03ANALOG UNIT (Continued)C3352 VCEAPF0JW107MY J 100 6.

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code78LC-20C3U-SDUNTKB617DE03ANALOG UNIT (Continued)R3351 VRS-CY1JF104JY J 100k 1

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code79LC-20C3U-SDUNTKB618DE03CONTROL UNITDUNTKB617DE03ANALOG UNIT (Continued)DIOD

8LC-20C3U-SCONNECTING EXTERNAL DEVICESYou can enjoy picture and sound by connecting a VCR or a home video game system to the terminalslocated on the

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code80LC-20C3U-S1 CCABAA189WJ01 J Cabinet A Ass’y BN1-1 Not Available– Cabine

81LC-20C3U-S654321ABCDEFGHCABINET AND MECHANICAL PARTS5-2-2101-151-141-21-11-141-151-61-51-71-61-71-122020204-24-14-44-64-74-34-54-8121714191919131998

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code82LC-20C3U-SSPAKCA370WJZZ – Packing Case —SPAKFA064WJZZ – Buffer Material(Cen

83LC-20C3U-SPACKING OF THE SETQuestionnaire Card (TCADEA028WJZZ)Operation Manual (TiNS-A419WJZZ)Cable Clamp (2pcs.) (LHLDWA002WJSA)★ "AAA&q

LC-20C3U-SCOPYRIGHT © 2002 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced,stored in a retrieval system, or tran

9LC-20C3U-SDIMENSIONSUnit: inch/(mm)VOL CHMENU TV/VIDEOMAIN/POWERPOWER SLEEP715/32 (190)259/64 (74.4)1035/64 (268.1)315/16 (100)193/8 (492.4)1549/64 (