TCL LCD20W5HE Service Manual Download Page 6

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20” LCD TV

TCL LCD20W5HE

Summary of Contents for LCD20W5HE

Page 1: ...3 LCD TV Description 15 2 4 Interface Connector 15 3 Precautions and Notices 16 3 1 Assembly Precaution 16 3 2 Operating Precaution 16 3 3 Storage Precaution 16 3 4 High Voltage Warning 16 4 Input Ou...

Page 2: ...20 LCD TV TCL LCD20W5HE 2 Revision List Revision Date Revision History TPV Model A00 Sep 09 06 First Version Release E206MTNMC1TLNP...

Page 3: ...cteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from TCL TCL assumes no liability express or impli...

Page 4: ...L Tuner Sound Systems NICAM TV Function Video Color systems PAL SECAM NTSC Video Inputs SCART S Video Composite HDMI Component Signal Input Analog D Sub 15 pin detachable cable PnP compatibility DDC 2...

Page 5: ...20 LCD TV TCL LCD20W5HE 5 2 Operating Instructions 2 1 The Use Of Remote Control...

Page 6: ...20 LCD TV TCL LCD20W5HE 6...

Page 7: ...20 LCD TV TCL LCD20W5HE 7 2 2 To Use The Menus...

Page 8: ...20 LCD TV TCL LCD20W5HE 8...

Page 9: ...20 LCD TV TCL LCD20W5HE 9...

Page 10: ...20 LCD TV TCL LCD20W5HE 10...

Page 11: ...20 LCD TV TCL LCD20W5HE 11...

Page 12: ...20 LCD TV TCL LCD20W5HE 12...

Page 13: ...20 LCD TV TCL LCD20W5HE 13...

Page 14: ...20 LCD TV TCL LCD20W5HE 14...

Page 15: ...gnals into LCD Module to drive the LCD display circuit The inverter board will drive the five CCFLs Cold Cathode Fluorescent Tube The switching power board will provides the power ON OFF to control th...

Page 16: ...wer button is turn off 2 Please do not change variable resistance settings in MAIN BOARD they are adjusted to the most suitable value If they are changed it might happen LUMINANCE does not satisfy the...

Page 17: ...unding The connector information is as follow 1 6 11 15 5 10 15 Pin Color Display Signal Cable Pin No Description Pin No Description 1 Red Video 9 No Pin 2 Green Video 10 Sync Ground 3 Blue Video 11 N...

Page 18: ...ULL 16 9 720 400 31 47 70 08 NEG POS YES YES YES YES 640 480 31 50 60 00 NEG NEG YES YES YES YES 640 480 37 50 75 00 NEG NEG YES YES YES YES 640 480 37 86 72 81 NEG NEG YES YES YES YES 800 600 37 90 6...

Page 19: ...Check D970 D980 NG Replace IC930 or Q930 Check Q931 ZD930 VCC2 NG Replace Q931 or ZD930 OK OK Check T901 OK NG Replace T901 Replace D970 or D980 OK Check F970 12V F980 24V Check PC950 TL950 FB Replac...

Page 20: ...3 or F702 OK NG Check PWR_ON signal OK NG Check Q703 Q708 Q704 Q911 NG Replace Q703 or Q708 or Q704 or Q911 Check U402 U403 NG Replace U402 or U403 Check I2 C communication OK Check Q940 VCC3 NG Repla...

Page 21: ...cator green Check the source OK Reset source NG Check LVDS cable NG Reset LVDS cable OK Check 24V power supply NG Return to 6 1 OK Check main board power supply OK Check U401 NG Replace U401 OK Check...

Page 22: ...t NG Replace the filter or inductance OK Check U106 NG Replace U106 RF signal Check TV system setup OK Check TU101 Replace TU101 AV SCART1 2_CVBS signal OK NG Check U107 NG Replace U107 S video SCART2...

Page 23: ...er or inductance OK NG SIF signal Check TV system setup OK Check TU101 Replace TU101 AV AIR1 AIR2 PC signal Check Audio decoder MSP3410G U602 NG Replace U602 OK Check U603 NG Replace U603 OK NG Replac...

Page 24: ...Key Board OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y Is Key Pad Board Normally Replace Key Pad Board C...

Page 25: ...tructions Step Figure Description Preparation Lay the LCD TV on a flat soft and clean surface Remove the stand Remove the screws remarked on red to remove the stand Remove the back cover Remove the sc...

Page 26: ...20 LCD TV TCL LCD20W5HE 26 Remove the shield 1 Remove the screws in red marked to remove the shield...

Page 27: ...W5HE 27 Remove front panel Remove the screws marked in red to remove the front panel Remove the main board power board and tuner board Remove the screws marked in red to remove the main board power bo...

Page 28: ...20 LCD TV TCL LCD20W5HE 28 Remove the main frame Remove the screws marked in red to remove the main frame The end N A...

Page 29: ...20 LCD TV TCL LCD20W5HE 29 8 PCB Layout 8 1 Main Board 715T1539 1 2...

Page 30: ...20 LCD TV TCL LCD20W5HE 30...

Page 31: ...20 LCD TV TCL LCD20W5HE 31...

Page 32: ...20 LCD TV TCL LCD20W5HE 32 8 2 Power Board 715T1599 3...

Page 33: ...20 LCD TV TCL LCD20W5HE 33...

Page 34: ...20 LCD TV TCL LCD20W5HE 34 8 3 Tuner Board 715T1529 1 2...

Page 35: ...20 LCD TV TCL LCD20W5HE 35 8 4 IR Board 715T1453 1 I 8 5 Key Board 715T1816 2...

Page 36: ...20 LCD TV TCL LCD20W5HE 36 8 6 Headphone Board 715T1290 1 5...

Page 37: ...CVBS2 SVP_EX52 PC_AUDIO Switch R Source CVBS_SEL 5V PC_R_IN SCART1_B Y C COMP_PB TTL speaker R_OUT C PC RGB DAC V Switch TUNER_OUT COMP_PR 4Mx32 SCART2_Y SCL MSP3410 CVBS4 CVBS1 SCART2 SAA7117A 12V SC...

Page 38: ...Audio_R 11 SC1_FN 7 10 L101 150 OHM 5V VGA_SDA C138 0 001uF C114 100pF R111 0 1 16W I2C Address 1010 000x U102 24LC21A 8 5 6 4 7 3 2 1 VCC SDA SCL GND VCLK NC2 NC1 NC0 Detect_VGAVS 7 D103 MLL4148 TV_P...

Page 39: ...PU GPIO3 M PU GPIO4 N C AD D R 0 AD D R 1 AD D R 2 AD D R 3 AD D R 4 AD D R 5 AD D R 6 AD D R 7 MD18 0 DQM2 C312 0 1uF VDDMQ C4 68pF RN25 100 1 16W 1 2 3 4 8 7 6 5 1 M A11 MD4 SDA_EX 0 BA1 5 C320 0 1u...

Page 40: ...3 AVDD3_AVSP2 P_24 Y_IN1 PAVSS Y_G1 C12 0 1uF NC VD3_3 DIN 0 23 8 10 DIN20 CLK_2EX C47 0 1uF VA1_8 715T1539 1 2 PR_R1 VREFN_2 T XOUT 1 6 PAVSS2 P_33 C58 0 1uF VGA_VSIN 2 P_37 NC T XCLK 6 AVDD3_AVSP2 P...

Page 41: ...MD9 VDDMQ DQ24 DQ28 DQ8 R127 15 1 16W DQ6 MA0 DDQS3 MCLK0 3 DQ27 DQ12 DQ6 DQ19 MCLK0 DDQS0 DQ27 DQ2 DQ23 BA1 3 DQ29 MD31 DQ16 DQM3 DDQS0 C84 0 0047uF C76 0 1uF MD7 Test pads for DDR DQ17 DQ31 C79 0 0...

Page 42: ...P4R 1 2 3 4 5 6 7 8 R3 G6 TXOUT3 B2 R1 C807 0 1uF G3 P_DATAEN R890 2 2K 1 16W CP105 22pF 1 2 3 4 5 6 7 8 R888 0 1 16W P_Vs TXOUT3 1 LVDS TTL AOC Top Victory Electronics Co Ltd B 6 14 Tuesday May 30 20...

Page 43: ...R443 220 1 16W 5V 1_CPU 5V 1_CPU E_PAGE A6 A10 R454 4 7K 1 16W FB57 150 OHM SC1_FN 2 10 A1 A4 AD1 R862 100 1 16W R600 22 1 16W 1 MCU_M30620SPGP AOC Top Victory Electronics Co Ltd Custom 7 14 Tuesday M...

Page 44: ...572 4 7K 1 16W C436 1000pF U502 RCLAMP0514M 1 3 4 5 6 9 2 7 10 8 BIN3 GIN1 BIN6 CI2CA R575 4 7K 1 16W VR1_8 DIN2 R576 4 7K 1 16W NC MCLK 9 3V_SDA 3 10 RX2 RN15 33 1 2 3 4 8 7 6 5 C125 1000pF C126 10uF...

Page 45: ...UTR C359 3 3uF 16V IIS_DATA 8 5V_DAC 5V C358 10uF 16V AUDIO_R R475 10K 1 16W MCLK 8 R477 270K 1 16W R473 470 1 16W AUDIO_L FB38 150 OHM 1 2 1 DAC AOC Top Victory Electronics Co Ltd A 9 14 Tuesday May...

Page 46: ...O TDI EXMCLR AMXCLK ALRCLK ASCLK AMCLK CLKEXT VSSD 1 VSSD 2 VSSD 3 VSSD 4 VSSD 5 VSSD 6 VSSD 7 VSSD 8 VSSD 9 VSSD 10 VSSD 11 VSSD 12 VSSD 13 LLC LLC2 RTS0 RTS1 RTCO INT_A RESO ADP0 ADP1 ADP2 ADP3 ADP4...

Page 47: ...V_A C604 0 1uF C652 10uF 16V C646 0 01uF C647 0 01uF C616 0 47uF 50V R640 100 1 16W R_OUT 2 C607 10uF 16V U605 74HC4052D 12 14 15 11 1 5 2 4 6 10 9 13 3 16 8 7 X0 X1 X2 X3 Y0 Y1 Y2 Y3 EN A B X Y VDD G...

Page 48: ...F 16V U706 3 2 1 VI VO GN D C832 47uF 16V C727 0 068uF 16V C708 47uF 16V 3 3V_SB GND Q707 AO4403 1 2 3 4 8 7 6 5 S1 S1 S1 G1 D1 D1 D1 D1 R702 47K 1 16W C723 10uF 16V AP1117E50A 1 5V_A L708 600 OHM 12V...

Page 49: ...FB36 50 OHM C403 22uF 16V F704 63V 800mAFUSE C430 0 1uF 56T 563 44 C811 22uF 16V C429 22uF 16V VDDMQ VDDA3 3 C273 0 1uF C812 0 1uF VD1_8 VR1_8 U711 AIC1084 18CE 2 3 1 OUT IN GN D C426 10uF 16V U716 AP...

Page 50: ...D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 CE OE WE VCC GND 5V 1_CPU A 0 7 AD2 A1 RD 7 WR 7 A14 A9 A4 A8 A10 1 EXT SRAM 32K FOR MCU AOC Top Victory Electronics Co Ltd A 14 14...

Page 51: ...7 3 4 6 12 8 11 9 R912 510K 1 8W ZD980 SMAJ26A 1 2 F960 FUSE Q910 20NM60 2 1 3 D911 MLL4148 R931 200K 1 8W FB960 BEAD C907 0 47uF 275V D980 SRF20200C 1 2 3 R932 100K 1 8W R960 33K 1 10W R914 10K R916...

Page 52: ...1 5 6 7 8 9 C133 47pF 50V C127 68pF R149 0 1 16W SCL 2 3 SCART1_G AV_1 L125 150 OHM COMP_Y R130 3 9K 1 16W R122 75 1 16W C115 68pF L115 600 OHM PC_R_I 3 4 C129 47pF 50V C117 68pF AGND AGND COMP_PB L11...

Page 53: ...S 5V AF MPX TH4 TH3 TH2 TH1 N C N C N C N C 5V IF AGND L104 600 OHM C104 10uF 16V L108 600 OHM C106 0 1uF 16V CVBS_SW1 1 AGND SCL 1 3 R146 9 3W SDA 1 3 AUDIO_SW2 4 12V_T R107 75 1 16W L106 NC C111 10u...

Page 54: ...NC AGNDC AHVSS SC4_IN_L CAPL_M AHVSUP CAPL_A SC1_OUT_L SC1_OUT_R VREF1 SC2_OUT_L DACM_SUB NC D_CTR_I O_0 D_CTR_I O_1 NC ANA_IN ANA_IN1 ANA_IN2 AVSS MONO_IN AVSUP VREFTOP SC1_IN_R SC1_IN_L NC NC RESETQ...

Page 55: ...N 3 High AV1_L 3 NC C660 10uF 16V L605 600 OHM High R635 0 1 16W COMP R645 0 1 16W PAL INPUT 1 FOR MSP3415 AOC Top Victory Electronics Co Ltd A3 4 4 Wednesday May 24 2006 Title Size Document Number Re...

Page 56: ...20 LCD TV TCL LCD20W5HE 56 11 Exploded View E206MTNMC1TLNP...

Page 57: ...ABLE 089T 718HAA600 SIGNAL CABLE 089T410A18N IS POWER CORD WALL OUT FOR UK 092TB1JX1A31GM PEONY A1KALINE LR03 095T8014 2 13 WIRE HARNESS 095T8014 3520 WIRE HARNESS 095T8014 5 34 HARNESS 5P 5P 560MM 09...

Page 58: ...45G 76 28 RN PE BAG FO MANUAL BASE Q41T200165417A manual 011T 176 1 RL WIRE HOLDER 012T 394 3 RUBBER FOOT 015T6184 1 Kensington lock 015T6257 1 HINGE BKT 015T8154 1 BKT BASE1 033T4823 RG L ID1 FUN KEY...

Page 59: ...2UF 275VAC X2 C910 063T213J105GFA MPF CAP C931 065T 1K222 2A6213 0 0022UF 1KV C980 065T 1K471 5A6921 470PF 10 1KV Y5P C901 065T306K4712BP 470PF 10 250VAC C902 065T306K4712BP 470PF 10 250VAC C905 065T3...

Page 60: ...174 71YSA LINE CHOKE L960 073T 253169 LS 7UH PITCH 10 L960 073T 253169 YS 7UH PITCH 10 L980 073T 253171 LS 2 13 uH L970 073T 253171 LS 2 13 uH L980 073T 253171 YS 2 13 uH L970 073T 253171 YS 2 13 uH T...

Page 61: ...3T 2258B J 24 576MHZ 20PF 49US X501 093T 2279B CRYSTAL 28 322MHZ 49U S X402 093T 2281B 10 000MHZ 30PF 49US SMTFAF5BMTEQP MAIN BOARD AUTO INS 019T 553 8 SPRING J101 033T802436C H HEADER FEMALE 36P 2 0M...

Page 62: ...56T 538 6 FA5500AN Q991 057T 417 4 CHIP PMBS3904 BY PHILIPS Q990 057T 417 4 CHIP PMBS3904 BY PHILIPS Q961 057T 417 4 CHIP PMBS3904 BY PHILIPS Q931 057T 417 4 CHIP PMBS3904 BY PHILIPS Q962 057T 417 6 P...

Page 63: ...931 061V1206204 CHIP 200KOHM 1 4W R942 061V1206332 CHIP 3 3KOHM 1 8W 5 R915 061V1206393 CHIP 39K OHM 5 1 8W R903 061V1206394 RST CHIPR 390KOHM 5 1 4W R902 061V1206394 RST CHIPR 390KOHM 5 1 4W R901 061...

Page 64: ...6432V LL4148 GSO8 SMD BY VISHA D911 093T 6432V LL4148 GSO8 SMD BY VISHA ZD930 093T 39S 15 T RLZ15B ZD963 093T 39S 33 T PTZ 13B D962 093T 39S 63 T SMAJ22A D962 093T 39S 64 T SMAJ22A D962 093T 39S501 T...

Page 65: ...SOT 6 FAIRCHILD Q103 057T 417 4 CHIP PMBS3904 BY PHILIPS Q708 057T 417 4 CHIP PMBS3904 BY PHILIPS Q706 057T 417 4 CHIP PMBS3904 BY PHILIPS Q704 057T 417 4 CHIP PMBS3904 BY PHILIPS Q703 057T 417 4 CHIP...

Page 66: ...1 16W 8P4R RN32 061V 125330 8 CHIP ARRAY 33 OHM 1 16W 8P4R RN18 061V 125330 8 CHIP ARRAY 33 OHM 1 16W 8P4R RN19 061V 125330 8 CHIP ARRAY 33 OHM 1 16W 8P4R RN20 061V 125330 8 CHIP ARRAY 33 OHM 1 16W 8...

Page 67: ...IPR 0OHM 5 1 10W R110 061V0603000 CHIPR 0OHM 5 1 10W R111 061V0603000 CHIPR 0OHM 5 1 10W R114 061V0603000 CHIPR 0OHM 5 1 10W R20 061V0603000 CHIPR 0OHM 5 1 10W R23 061V0603000 CHIPR 0OHM 5 1 10W R394...

Page 68: ...061V0603102 CHIPR 1K OHM 5 1 10W R130 061V0603102 CHIPR 1K OHM 5 1 10W R445 061V0603102 CHIPR 1K OHM 5 1 10W R509 061V0603102 CHIPR 1K OHM 5 1 10W R531 061V0603102 CHIPR 1K OHM 5 1 10W R448 061V060310...

Page 69: ...220 CHIPR 22 OHM 5 1 10W R418 061V0603220 CHIPR 22 OHM 5 1 10W R412 061V0603220 CHIPR 22 OHM 5 1 10W R393 061V0603220 CHIPR 22 OHM 5 1 10W R390 061V0603220 CHIPR 22 OHM 5 1 10W R245 061V0603220 CHIPR...

Page 70: ...5 1 10W R826 061V0603472 RST CHIPR 4 7KOHM 5 1 10W R575 061V0603472 RST CHIPR 4 7KOHM 5 1 10W R161 061V0603472 RST CHIPR 4 7KOHM 5 1 10W R160 061V0603472 RST CHIPR 4 7KOHM 5 1 10W R572 061V0603472 RST...

Page 71: ...538 061V0603680 CHIP 68 OHM 1 16W R537 061V0603680 CHIP 68 OHM 1 16W R10 061V0603680 CHIP 68 OHM 1 16W R9 061V0603680 CHIP 68 OHM 1 16W R597 061V0603680 CHIP 68 OHM 1 16W R598 061V0603680 CHIP 68 OHM...

Page 72: ...603102 32 CHIP 1000PF 50V X7R C131 065T0603102 32 CHIP 1000PF 50V X7R C132 065T0603102 32 CHIP 1000PF 50V X7R C138 065T0603102 32 CHIP 1000PF 50V X7R C329 065T0603102 32 CHIP 1000PF 50V X7R C355 065T0...

Page 73: ...F K 16V X7R C124 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C127 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C128 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C356 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C56...

Page 74: ...065T0603104 32 CHIP 0 1UF 50V X7R C837 065T0603104 32 CHIP 0 1UF 50V X7R C85 065T0603104 32 CHIP 0 1UF 50V X7R C86 065T0603104 32 CHIP 0 1UF 50V X7R C9 065T0603104 32 CHIP 0 1UF 50V X7R C277 065T0603...

Page 75: ...065T0603104 32 CHIP 0 1UF 50V X7R C12 065T0603104 32 CHIP 0 1UF 50V X7R C13 065T0603104 32 CHIP 0 1UF 50V X7R C14 065T0603104 32 CHIP 0 1UF 50V X7R C276 065T0603104 32 CHIP 0 1UF 50V X7R C320 065T060...

Page 76: ...3 C381 065T0603223 32 CHIP 0 022UF 50V X7R 0603 C382 065T0603223 32 CHIP 0 022UF 50V X7R 0603 C383 065T0603223 32 CHIP 0 022UF 50V X7R 0603 C610 065T0603223 32 CHIP 0 022UF 50V X7R 0603 C611 065T06032...

Page 77: ...F 25V Y5V C639 065T0603561 31 CHIP 560PF 50V NPO C638 065T0603561 31 CHIP 560PF 50V NPO C5 065T0603680 31 CHIP 68PF 50V NPO C4 065T0603680 31 CHIP 68PF 50V NPO C398 065T0603681 31 CHIP 680PF 50V NPO C...

Page 78: ...48 067T 312100 3 SMD EC 10UF 16V 85C B C102 067T 312100 3 SMD EC 10UF 16V 85C B C3 067T 312100 3 SMD EC 10UF 16V 85C B C30 067T 312100 3 SMD EC 10UF 16V 85C B C32 067T 312100 3 SMD EC 10UF 16V 85C B C...

Page 79: ...V 85C D C818 067T 312470 3 SMD EC 47UF 16V 85C D C832 067T 312470 3 SMD EC 47UF 16V 85C D C836 067T 312470 3 SMD EC 47UF 16V 85C D LP108 071T 56A121 8T CHIP BEAD ARRAY 120 OHM FB48 071T 56G151 A CHIOP...

Page 80: ...IP BEAD FB36 071T 57S480 YA 1206 48 OHM FB31 071T 57U500 CHIP BEAD FB40 071T 57U500 CHIP BEAD FB65 071T 57U500 CHIP BEAD FB11 071T 59C300 CHIP BEAD 30 OHM 0603 FB12 071T 59C300 CHIP BEAD 30 OHM 0603 L...

Page 81: ...0 75OHM R141 061T0603750 75OHM R122 061T0603750 75OHM R123 061T0603750 75OHM R124 061T0603750 75OHM R125 061T0603750 75OHM R126 061T0603750 75OHM R128 061T0603750 75OHM R132 061T0603750 75OHM R133 061...

Page 82: ...3120 0F CHIP 120OHM 0603 1 R131 061V0603153 CHIPR 15KOHM 5 1 16W R127 061V0603183 CHIP 18K OHM 1 16W R605 061V0603220 CHIPR 22 OHM 5 1 10W R601 061V0603220 CHIPR 22 OHM 5 1 10W R110 061V0603221 220 OH...

Page 83: ...03470 31 CHIP 47PF 50V NPO C608 065T0603471 31 CHIP 470PF 50V NPO C619 065T0603471 31 CHIP 470PF 50V NPO C633 065T0603471 31 CHIP 470PF 50V NPO C638 065T0603471 31 CHIP 470PF 50V NPO C639 065T0603471...

Page 84: ...00 3 SMD EC 10UF 16V 85C B C103 067T 312100 3 SMD EC 10UF 16V 85C B C147 067T 312100 3 SMD EC 10UF 16V 85C B C611 067T 312100 3 SMD EC 10UF 16V 85C B C616 067T 312100 3 SMD EC 10UF 16V 85C B C623 067T...

Page 85: ...0 01UF 50V X7R C2 065T0603103 32 CHIP 0 01UF 50V X7R C1 065T0603103 32 CHIP 0 01UF 50V X7R FB1 071T 56U601 BEAD 600 OHM FB3 071T 56U601 BEAD 600 OHM FB2 071T 56U601 BEAD 600 OHM 715T1290 1 5 PCB FOR H...

Page 86: ...077T 604 2 TO CHIP TACT SW TS 9 TMG 533 S7 077T 604 2 TO CHIP TACT SW TS 9 TMG 533 D1 093T 6433P BAV99 715T1816 2 KEY BOARD PCB CN901 006T 31500 EYELET T930 006T 31502 1 5MM RIVET L910 006T 31502 1 5...

Page 87: ...252T 3 3K 1 4W R990 061T 17233252T 3 3K 1 4W R950 061T 17247152T 470OHM 5 1 4W R971 061T175L47052T 47OHM 5 1 2W C934 067T215Y4707KT 47UF 50V FB960 071T 55 29 BEAD ZD991 093T 3916652T MTZJ T 72 15B ZD9...

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