Hyundai HLCD-A20W4 Service Manual Download

Page: 25 / 82

20” LCD TV

Hyundai HLCD-A20W4

7. Mechanical Instructions

Step Figure

Description

Preparation

Lay the LCD-TV
on a flat, soft
and clean
surface.

Remove
the stand

Remove the
four screws to
remove the
stand.

Remove
the back
cover

Remove the
eight

screws

marked in red to
remove the
back cover.

Summary of Contents for HLCD-A20W4

Page 1: ...7 2 3 LCD TV Description 14 2 4 Interface Connector 14 3 Precautions and Notices 15 3 1 Assembly Precaution 15 3 2 Operating Precaution 15 3 3 Storage Precaution 15 3 4 High Voltage Warning 15 4 Input...

Page 2: ...20 LCD TV Hyundai HLCD A20W4 2 Revision List Revision Date Revision History TPV Model A00 Sep 09 06 First Version Release E206MHNSD4H2NP...

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

Page 4: ...fe 50000 hr LCD Panel Color Temperature Cool Warm Normal Input support definition Could support to 1360 768 This product could only support to 60Hz Input out of range will displayed when the input ver...

Page 5: ...l Chinese Table Stand Yes Wall Mount VESA 100 x 100 mm Power AC100V 240V 50 60Hz Power Power Consumption 90W Panel Tilt Forwards Backwards Rotation 4 18 35 Temperature 0 C 40 C storage 25 C 60 C Envir...

Page 6: ...select the number of minutes The counter runs from 5 10 15 20 25 120 minutes PIP Not Supported POP Not Supported MENU Press repeatedly to display OSD menu V CHIP Press this button to setup parental c...

Page 7: ...Adjust the items including Picture Setup Sound setup Child Lock Setup Function Setup and TV setup When the input source is PC or Component mode only the Sound Setup Picture Setup and Menu Setup can be...

Page 8: ...prevent the bad sound effect resulting from large sound variation 5 Select ON or OFF for Loudness a default setting is preset you may adjust when necessary The following menu will appear when selectin...

Page 9: ...own by this device 7 Colour Temp There are four options of colour temperature provided for users 6500 7300 9300 and Personal You can select the three colour temperatures of 6500 7300 and 9300 or manua...

Page 10: ...int The range can be adjusted from 50 50 use this option to adjust the colour of picture 5 Dyn Skin tone When the Dynamic skin tone is ON the skin tone of person in the picture becomes more vivid 6 Co...

Page 11: ...bled you can not enter V Chip level setting when the Child Lock Setup is OFF and the V Chip is disabled 2 Lock code V Chip password can be set up when the code is locked Enter the 4 digit password whi...

Page 12: ...rd You can enter the Child Lock setting to set up the V Chip level when you enter the correct password 1 Age it may be set to Child Teenager Youth Adult Custom or OFF when you select Custom it can be...

Page 13: ...channels that have been located are stored If you would like to stop Auto Search during the process simply by pressing the function button 5 Fine tune Fine tune the frequency of current channel 6 AFC...

Page 14: ...nd transmitting TTL level signals 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 th...

Page 15: ...power 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 t...

Page 16: ...rounding 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...

Page 17: ...Polarity Nominal Freq 1 Hz Sync Polarity Nominal Pixel Clock VGA 640x480 60Hz 800 x 525 31 469 N 59 940 N 25 175 800x600 56Hz 1024 x 625 35 156 N P 56 250 N P 36 000 SVGA 800x600 60Hz 1056 x 628 37 87...

Page 18: ...ff the TV MENU Key Press to show the OSD menu and exit OSD menu at the TV Down Up Key Select the intended function by pressing these two keys or switch the channels in the TV mode Key Press to confirm...

Page 19: ...the source Reset source Check LVDS cable NG Replace LVDS cable Check 12V power supply Return to 3 Check U406 Replace U406 Check panel Replace panel Check main board power supply Check I2 C communicat...

Page 20: ...t start LED indicator yellow NG Repair the keyboard Check 5V_SB Check every chip power supply Check I2 C communication Check keyboard Replace I2C communication component Check oscillistor Replace osci...

Page 21: ...970 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 Replace PC950...

Page 22: ...circuit Replace the filter or inductance Repair each relative circuit Check TU100 Replace TU100 AV S video signal component PC signal Check LVDS cable Replace LVDS cable Replace panel Abnormal displa...

Page 23: ...the filter or inductance Check TU100 Replace TU100 AV component S video PC signal Check Amplifier TPA3002D2 U606 Replace U606 Check Earphone jack Replace the Earphone jack Check speakers Replace spea...

Page 24: ...24 6 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 Boa...

Page 25: ...l Instructions Step Figure Description Preparation Lay the LCD TV on a flat soft and clean surface Remove the stand Remove the four screws to remove the stand Remove the back cover Remove the eight sc...

Page 26: ...20 LCD TV Hyundai HLCD A20W4 26 Remove the shield Remove the fourteen screws to remove the shield...

Page 27: ...Remove the fifteen screws to remove the front panel Remove the main board the tuner board and the power board 1 Remove the twelve screws marked in red 2 Disconnect the connector marked in bule and rem...

Page 28: ...20 LCD TV Hyundai HLCD A20W4 28 Remove the main frame Remove the twelve screws marked in red to remove the main frame The end N A...

Page 29: ...20 LCD TV Hyundai HLCD A20W4 29 8 PCB Layout 8 1 Main Board 715T1802 2...

Page 30: ...20 LCD TV Hyundai HLCD A20W4 30...

Page 31: ...20 LCD TV Hyundai HLCD A20W4 31 8 2 Power Board 715T1599 3...

Page 32: ...20 LCD TV Hyundai HLCD A20W4 32...

Page 33: ...20 LCD TV Hyundai HLCD A20W4 33 8 3 Tuner Board 715T1747 1 VS...

Page 34: ...20 LCD TV Hyundai HLCD A20W4 34...

Page 35: ...20 LCD TV Hyundai HLCD A20W4 35...

Page 36: ...20 LCD TV Hyundai HLCD A20W4 36 8 4 IR Board 715T2132 1 8 5 Key Board 715T1822 3...

Page 37: ...20 LCD TV Hyundai HLCD A20W4 37 8 6 Headphone Board 715T2185 1...

Page 38: ...402 PI5V 330W U404 RGB Gain Input PC Audio AV Audio HD Audio Switch 4052 Video H V Output PC H V Input Select H V Input TTL output LVDS output PANEL DC 12V DC 5V Inverter DDC EEPROM DDC SCL SDA EEPROM...

Page 39: ...Y REF REF R504 75 REF REF R486 10k 5V_SW Q403 BC847B 1 3 2 R495 0 OHM C402 10uF 16V R497 4 7k Q401 BC847B 1 3 2 Q402 BC847B 1 3 2 C471 100P R502 4 7k C488 33P PB_CB Q404 BC847B 1 3 2 FB412 B0805 0 GOU...

Page 40: ...Number Rev Date Sheet of S_CTL ASTB SCOR1 PC AUDIO MUTE MOL D_DECT1 SCOL1 AGND R133 10K KEYBOARD REF HDIR AV1 KEYB HD_Y HDIL SCIL2 CN107 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1 3 5 7 9 11 13...

Page 41: ...N A B X Y VDD GN D VEE R540 4 7k ISP_SCL R535 1k 03 1 IIC SWITCH AOC Top Victory Electronics Co Ltd A4 3 14 Friday April 28 2006 Title Size Document Number Rev Date Sheet of 5V FB416 B0805 0 R534 1k S...

Page 42: ...P C469 0 1u R532 10k R528 100k ADC_VAA REF R536 1K REF REF Q413 PMBS3904 3 2 1 AVI_DET Hout BAIN R544 75 3 3Vstb REF FB415 BA792 REF R520 100 5V R515 0 ZD407 5 6V 1 2 R518 75 OHM ADC_VAA R519 75 OHM T...

Page 43: ...FIN1 C215 5P 1 8V_1 C217 1 5u R213 1 2K C225 10u VIFIN1 FB204 600 R254 100K C247 0 1uF FB201 600 R257 10K FB202 600 U202K3953M 1 2 3 4 5 DECDIG VIFIN2 R272 1M R285 47K U203 K9650M 1 2 3 4 5 C244 0 006...

Page 44: ...47uF C208 47pF GND4 R206 0 C294 0 22uF C308 0 47uF GND2 SCIL2 SOR1 REF MOR GND2 MOR R553 1 5K U401D LOCI G24 F25 F24 F23 E25 E24 E23 D24 C24 B24 D23 D22 C22 D21 B23 C21 B21 C20 B20 A20 B19 D19 C19 D1...

Page 45: ...T VSSCOMB VDD_COMB VIN UIN YIN YSYNC YOUT UOUT INSSW3 R Pr N3 G YIN3 B Pb N3 VP3 BCLIN BLKIN RO GO BO VDDA1 VREFAD_NEG VREFAD_POS VREFAD GNDA VDDA GND1 VDDA2 VSSadc VDDadc VOUT 8V R218 100 5V_SW UOUT...

Page 46: ...3 3Vstb DIG1 REF S_CTL FB117 NC R214 1 2K R252 100 3 3Vstb R238 100 VDDA1 1 8V_1 C287 0 1uF R302 10K C286 0 1uF FB220 600 R249 100 R276 100 R210 0 R242 100 nc R268 15k DIG1 RXD 3 3Vstb C237 0 22u REF...

Page 47: ..._CORE01 NC51 NC52 TXD GPIO 6 NC53 VSS_IO31 VDD3V3_RGB2 VSSA_RGB2 IN_B REF_B VSSA_ADC_B VDDA1V8_ADC_B AVI_TEST VDD3V3_RGB1 VSSA_RGB1 IN_G REF G VSSA_ADC_G VDDA1V8_ADC_G VDD3V3_IN VSSA_CLEAN VDD_CORE0 R...

Page 48: ...AE17 AC16 AD16 AE16 AF16 AC15 AD15 AE15 AF15 AF14 A3 AC14 AD14 AD13 AE13 AF13 D1 AB1 AB2 AC1 AC2 AD1 AC3 AE1 AB4 AE2 AD3 AC4 A25 AF2 AE3 AD4 AF3 AC5 AE4 AD5 AF4 AE5 AC6 AF5 AD6 AE6 AC7 AF6 AD7 AE8 AE...

Page 49: ...BE2 DRE3 R447 100R PANEL_VDD RSN1 DBE3 C444 100n 3 3Vs_SW RSP8 DGE5 RSN5 DBE4 R445 100R RP403 22x 1 2 3 4 8 7 6 5 CP406 NC 1 2 3 4 5 6 7 8 Vsy nc_TTL RSN0 DGE7 RSN2 DBE2 RSP9 R444 100R R429 0R DRE0 RS...

Page 50: ...BSH111 NC D101 BAS16 NC REF C147 10u AGND BL_ADJ GND3 C142 220p REF C139 0 1uF REF FB102 NC Q104 BC8478 3 2 1 C157 0 1uF R109 10k 3 3Vs_SW U101 LM1117MP 1 8 3 2 1 4 VIN VOUT GND CASE R105 4 7K REF C13...

Page 51: ...8VS_SW 3 3V_LVDS FB114 BLM21A102S C120 100n C110 100n C128 100n C114 100n C116 100n C121 100n C117 100n C124 100n C111 100n C123 100n C115 100n C103 22u 6v 3 C107 100n C119 100n C129 100n REF C112 100...

Page 52: ...0 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 R91...

Page 53: ...0pF NC AUDIO1IN_R C249 NC GND GND GND AUDIO1_L R217 470 1 16W SV Au IN_L YPbPr Au IN_L C243 NC C225 0 33uF 16V AUDIO1IN_L R213 75 1 16W AUDIO1_R AUDIO2IN_L L208 120 OHM AGND AV1 IN AV1 AU IN R R224 47...

Page 54: ...ry Electronics Co Ltd A4 2 3 Wednesday November 30 2005 Title Size Document Number Rev Date Sheet of C233 33nF L218 47u R607 3 9K ZD408 5 6V R603 0 C236 4 7nF C237 4 7nF Q603 PMBS3904 3 2 1 R605 10K 5...

Page 55: ...r Au IN_L 03 RevCode CONNECTOR AOC Top Victory Electronics Co Ltd A4 3 3 Wednesday November 30 2005 Title Size Document Number Rev Date Sheet of Y SV Au IN_R YPbPr Au IN_R AV1 AU IN L SWAP Pr with Y C...

Page 56: ...KER 1 2 3 R612 1K 1 16W ROUT R611 12K 1 16W C624 100pF R625 4 7K 1 16W C601 100pF HP_SENSE FB602 120 OHM C614 0 47uF 16V FB603 120 OHM LOUT C617 0 47uF 16V R614 33K 1 16W Q602 MMBT3904 1 3 2 HP_SENSE...

Page 57: ...20 LCD TV Hyundai HLCD A20W4 57 11 Exploded View...

Page 58: ...KUAIDA 078T 306501 KR SPK 8OHM 5W KUAIDA 085T 583501504 GASKET 089T 173 56 18 AUDIO CABLE 089T1735CAA D1 SINGNAL CABLE 089T1735GAA D1 SIGNAL CABLE 089T408A15N IS POWER CORD Wall out for ITALY 092TB1JX...

Page 59: ...TUNER BOARD 040T 58162435A LABEL 045T 76 28 C PE Bag For Manual Q41T2001970 1A manual Q41T7800970 1A warranty booklet 011T 176 1 RL WIRE HOLDER 015T6184 1 Kensington lock 015T6257 1 HINGE BKT 033T630...

Page 60: ...22BM Y1 CAP 001UF 250VAC MURATA C905 065T306M1022BP Y1 CAP 001UF 250VAC C903 065T306M2222BM Y1 CAP 0022UF 250V AC MUR C903 065T306M2222BP Y1 CAP 0022UF 250V AC C901 065T306M4712BM Y1 CAP 470PF 250VAC...

Page 61: ...20T 6 T X FMR T930 080TL20T 6 LS POWER X FMR CN901 087T 501 32 S AC SOCKET D930 093T1100 1A52T BYV26E D930 093T1100 1C52T BYV26EGP CN903 095T8013 10 18 WIRE HARNESS 705G F95 57 01 Q930 D910 Q910 ASS Y...

Page 62: ...V101 3 1000UF 2 16V C697 067T305V101 3 1000UF 2 16V FB609 071T 55507 H CHOKE FB608 071T 55507 H CHOKE L218 073T 5547010T PEAKING COIL 47UH 10 TDK L219 073T 5547010T PEAKING COIL 47UH 10 TDK 085T 58351...

Page 63: ...10W R951 061T0603243 1F RST CHIPR 2 43 KOHM 1 1 10W R954 061T0603243 1F RST CHIPR 2 43 KOHM 1 1 10W R963 061T0603300 1F RST CHIPR 3 KOHM 1 1 10W R961 061T0603430 2F RST CHIPR 43 KOHM 1 1 10W R966 061T...

Page 64: ...ST CHIPR 680KOHM 5 1 4W R902 061T1206684 RST CHIPR 680KOHM 5 1 4W R903 061T1206684 RST CHIPR 680KOHM 5 1 4W C914 065T0603102 32 CHIP 1000PF 50V X7R C930 065T0603102 32 CHIP 1000PF 50V X7R C932 065T060...

Page 65: ...IPS U402 056T 634 2 PI5V330Q QSOP 16 BY PER U404 056T 634 2 PI5V330Q QSOP 16 BY PER U301 056T1133 34 M24C02 WMN6TP U403 056T113353A M24C32 WMN6TP Q401 057T 417 4 CHIP PMBS3904 BY PHILIPS Q202 057T 417...

Page 66: ...061T0603000 CHIP 0OHM 1 16W R493 061T0603000 CHIP 0OHM 1 16W R492 061T0603000 CHIP 0OHM 1 16W R429 061T0603000 CHIP 0OHM 1 16W R294 061T0603000 CHIP 0OHM 1 16W R208 061T0603000 CHIP 0OHM 1 16W R204 06...

Page 67: ...0OHM 1 16W R223 061T0603101 CHIP 100OHM 1 16W R224 061T0603101 CHIP 100OHM 1 16W R226 061T0603101 CHIP 100OHM 1 16W R239 061T0603101 CHIP 100OHM 1 16W R250 061T0603101 CHIP 100OHM 1 16W R249 061T06031...

Page 68: ...6W R488 061T0603103 CHIP 10KOHM 1 16W R487 061T0603103 CHIP 10KOHM 1 16W R110 061T0603103 CHIP 10KOHM 1 16W R109 061T0603103 CHIP 10KOHM 1 16W R108 061T0603103 CHIP 10KOHM 1 16W R104 061T0603103 CHIP...

Page 69: ...W R297 061T0603332 RST CHIPR 3 3 KOHM 5 1 10W R419 061T0603332 RST CHIPR 3 3 KOHM 5 1 10W R420 061T0603332 RST CHIPR 3 3 KOHM 5 1 10W R126 061T0603332 RST CHIPR 3 3 KOHM 5 1 10W R278 061T0603391 RST C...

Page 70: ...414 061T0805000 CHIP 0OHM 5 1 10W FB413 061T0805000 CHIP 0OHM 5 1 10W FB412 061T0805000 CHIP 0OHM 5 1 10W FB411 061T0805000 CHIP 0OHM 5 1 10W FB410 061T0805000 CHIP 0OHM 5 1 10W FB409 061T0805000 CHIP...

Page 71: ...65T0603104 12 MLCC 0603 0 1UF K 16V X7R C247 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C248 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C249 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C250 065T0603104 12 ML...

Page 72: ...CC 0603 0 1UF K 16V X7R C112 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C111 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C110 065T0603104 12 MLCC 0603 0 1UF K 16V X7R C109 065T0603104 12 MLCC 0603 0 1UF K...

Page 73: ...3224 17 CHIP 0 22UF 16V Y5V C292 065T0603224 17 CHIP 0 22UF 16V Y5V C293 065T0603224 17 CHIP 0 22UF 16V Y5V C297 065T0603224 17 CHIP 0 22UF 16V Y5V C298 065T0603224 17 CHIP 0 22UF 16V Y5V C299 065T060...

Page 74: ...304 065T0603474 17 CHIP 0 47UF 16V Y5V C303 065T0603474 17 CHIP 0 47UF 16V Y5V C302 065T0603474 17 CHIP 0 47UF 16V Y5V C296 065T0603474 17 CHIP 0 47UF 16V Y5V C295 065T0603474 17 CHIP 0 47UF 16V Y5V C...

Page 75: ...7T411F4703XT EC 105 SMD CAP 47UF M16V C150 067T411F4703XT EC 105 SMD CAP 47UF M16V C153 067T411F4703XT EC 105 SMD CAP 47UF M16V FB105 071T 56G151 A CHIOP BEAD 150 OHM FB221 071T 56G301 EA CHIP BEAD 30...

Page 76: ...3T 6433P BAV99 D403 093T 6433P BAV99 FB415 093T 39S 34 T UDZS5 6B ROHM ZD405 093T 39S 34 T UDZS5 6B ROHM ZD402 093T 39S 34 T UDZS5 6B ROHM ZD403 093T 39S 34 T UDZS5 6B ROHM ZD401 093T 39S 34 T UDZS5 6...

Page 77: ...103 CHIP 10KOHM 1 16W R605 061T0603103 CHIP 10KOHM 1 16W R653 061T0603104 CHIP 100K OHM 1 16W R407 061T0603104 CHIP 100K OHM 1 16W R405 061T0603104 CHIP 100K OHM 1 16W R659 061T0603124 RST CHIPR 120 K...

Page 78: ...X7R C681 065T0603104 32 CHIP 0 1UF 50V X7R C632 065T0603104 32 CHIP 0 1UF 50V X7R C631 065T0603104 32 CHIP 0 1UF 50V X7R C628 065T0603104 32 CHIP 0 1UF 50V X7R C627 065T0603104 32 CHIP 0 1UF 50V X7R...

Page 79: ...X7R C238 065T0603472 32 CHIP 4700PF 50V X7R C694 065T0603474 17 CHIP 0 47UF 16V Y5V C205 065T0603683 12 CHIP 0 68UF 16V X7R L203 071T 56G151 A CHIOP BEAD 150 OHM L206 071T 56G151 A CHIOP BEAD 150 OHM...

Page 80: ...180 0F RES 180R 1 10W 1 SMT 0603 R04 061L0603240 0F CHIPR 240 OHM 1 10W R06 061L0603470 0F 470 OHM 1 1 10W R09 061L0603680 0F RST SM 0603 RC22H 680R PM1 R R02 061T0603150 0F RST CHIPR 150 OHM 1 1 10W...

Page 81: ...0 23 TIN COATED J908 095T 90 23 TIN COATED J903 095T 90 23 TIN COATED J902 095T 90 23 TIN COATED J901 095T 90 23 TIN COATED R952 061T 17119352T RST CFR 19K0HM 2 1 4W R953 061T 17143352T RST CFR 43KOHM...

Page 82: ...20 LCD TV Hyundai HLCD A20W4 82 F960 084T 56 4W FUSE 4A...

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