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AOC LE20A1140, Руководство по обслуживанию

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AOC LE20A1140 Скачать руководство пользователя страница 24

 

24 

6. Remote control malfunction 
 

 

 
 
 
 
 

Remote Control malfunction 

 

Replace the battery 

Replace the remote control 

Whether the IR board is 

abnormal? 

Yes 

No 

Replace the IR board 

Replace the main board

No

Yes

No

Yes

 

Use the other remote controls

Check the remote control battery is 
not properly placed or no power? 

Содержание LE20A1140

Страница 1: ...ESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES CAUTION USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING 6 1 Main Board 25 6 2 Power B...

Страница 2: ...ht 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 implied arising o...

Страница 3: ...3 Revision List Version Release Date Revision Instructions Customer Model TPV Model A00 Feb 24 2014 Initial release LE20A1140 E20D41NSBTE7NN E20D41NSBTE6NN...

Страница 4: ...4 1 General Specification...

Страница 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control...

Страница 6: ...6 2 2 To Use the Menus...

Страница 7: ...7...

Страница 8: ...8...

Страница 9: ...9...

Страница 10: ...10...

Страница 11: ...11 2 3 How to Connect...

Страница 12: ...12...

Страница 13: ...13 2 4 Front Panel Control Knobs...

Страница 14: ...6 Red GND 6 TMDS Data1 6 TMDS Data1 7 Green GND 7 TMDS Data0 7 TMDS Data0 8 Blue GND 8 TMDS Data0 shield 8 TMDS Data0 shield 9 5V supply from PC 9 TMDS Data0 9 TMDS Data0 10 Sync GND 10 TMDS Clock 10...

Страница 15: ...15...

Страница 16: ...16 4 Mechanical Instructions 1 Remove the screws to remove STAND BASE 2 Remove the screws to remove REAR COVER...

Страница 17: ...17 3 Disconnect the PINS marked in yellow Remove the screws marked in red to remove MAIN BOARD POWER BOARD and SPEAKERS 4 Remove the screws to remove DECO and disconnect the pin to remove the IR Board...

Страница 18: ...18 5 Remove the screws to remove BKT 6 Panel...

Страница 19: ...Chart 1 No power No power LED Off Check the AC input and the power is ON Power On Check the IR board and LED Replace the IR board Replace the main board Power board output 5 2V Replace the power board...

Страница 20: ...lue Replace the main board Replace the Power board No Yes No Yes No No Power board output 16V Check the power key is under control Check the IR receiver is normal Replace the power board Replace the m...

Страница 21: ...play Reset the source Check the source Check the panel Replace the main board Replace the LVDS cable Replace the panel No No No Yes Yes Yes No No Check the main board Enter factory mode to do EEPROM i...

Страница 22: ...the Panel No display No LED Replace the main board Check the backlight is On Check the LVDS cable Reinsert or replace the LVDS cable Replace the main board Replace the Panel No Yes Yes No Yes No No Y...

Страница 23: ...e or enter the menu to reset Reinsert the audio cable or change the TV system Replace the cable Replace the speaker Replace the main board No Yes Check the speaker resistance value is in spec Remark T...

Страница 24: ...unction Replace the battery Replace the remote control Whether the IR board is abnormal Yes No Replace the IR board Replace the main board No Yes No Yes Use the other remote controls Check the remote...

Страница 25: ...25 6 PCB Layout 6 1 Main Board 715G5749M03001004K...

Страница 26: ...26...

Страница 27: ...27 6 2 Power Board 715G5804P01W20001M...

Страница 28: ...28...

Страница 29: ...29...

Страница 30: ...30 6 3 IR Board 715G5772R01000004K...

Страница 31: ...r Temp Normal b Adjust gain of RGB to meet spec in the below setting of tim pat COMPONENT mode TIM 314 PAT 141 80IRE 3 Check the colour temperature of other Source If the colour temperature can t meet...

Страница 32: ...ot directory Step2 TV Power On Step3 Insert USB to TV then AC off on Step4 Presses Menu 456987 Recall click yes TV auto upgrade After USB F W update OK TV will power off Step5 Power on press Menu 1999...

Страница 33: ...CVBS DTV DEMOD MSB1400 Single terminal silicon tuner LG TDST H020F Series TS Analog IF RGB Headphone AMP LVDS AUDIO AMP APA2176A L R 5W SPK 5W SPK R L Remote Control KeyPad AV Audio USB L R ATV DEMOD...

Страница 34: ...wer 1A 500mA 5V_NORMAL PANEL_VCC 1V2 P12V Without panel 3 5A LDO 3 3V_STANDBY G9141 150mA DC DC 170mA USB Power 1 18 5 23 6 audio current 3W 2 75 8W 12V current 8W 12V 0 67A 2 29 32 audio current 5W 2...

Страница 35: ...H 5V_Standby 1 2V_VDDC Vout 0 8 1 R1 R2 R1 073G253S 68 H MST6931 Core Power 1 26V 650mA BL_EN High active R714 1K R706 NC 10K C713 100UF 16V ZD701 NC BZT52 C5V6 1 2 NC 4 7UF 10V C706 R702 1K R710 4 7K...

Страница 36: ...MID_D0 8 HDMID_D0 8 HDMID_D1 8 HDMID_D1 8 TP74 HDMID_D2 8 HDMID_D2 8 AMP AUOUTR0 HDMID_CLK 8 TP75 HDMID_CLK 8 HDMID_DDC_SDA 8 TP76 HDMID_DDC_SCL 8 HOTPLUGD 8 HDMIA_D0 8 HDMIA_D0 8 TP77 HDMIA_D1 8 HDMI...

Страница 37: ...5R C452 100N 16V Master Panel Connector For LCM290XX R443 10K R444 10K 30 1 CN403 CONN 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40...

Страница 38: ...1 2 3 4 6 5 R113 33R 100N 16V C124 C104 NC 1uF 10V R115 NC 75R R119 10K R127 USB IN R724 100K USB0_DP USB0_DM ZD118 NC MLVG0402 1 2 R111 33R Q101 NC MMBT3904 U704 APL3511CBI TRG VOUT 1 GND 2 OCB 3 EN...

Страница 39: ..._D1 HDMIA RX2P HDMID RX1P HDMIA_D2 5 HDMIA_CLK 5 HDMIA_DDC_SCL HDMI CEC V T H 8 5mm HDMID_CLK 5 HDMID_D1 HDMI_A with ARC function HDMID_D0 HDMI ARC HDMIA_D2 HDMID_D1 Q502 MMBT3904 HDMIA_D2 HDMID_D0 R5...

Страница 40: ...5 R466 NC 10K 1 16W 5 R1136 NC 22K 1 16W R1134 NC 33K 1 16W R1144 NC 22K 1 16W IRRX1 R1135 NC 10K CN118 NC CONN 1 2 3 4 5 R4012 NC 10K R1060 NC 0R05 OHM IR_DET_SW 3 3V_Standby R1140 NC 100R 1 16W 5 SW...

Страница 41: ...R731 0 05R 3 3V_TUNER 5V_Normal Close to Tuner R733 0 05R C140 NC 100N 16V 3 3V_TUNER R156 0R05 1 16W C454 1NF 50V Demod M_SCL R155 0R05 1 16W IF_AGC Demod M_SDA R496 0R05 1 10W Tuner LG TDST H030F C1...

Страница 42: ...r DTV U163 NC G692L293TCUf 2 91V GND 1 RESET 2 VCC 4 MR 3 R487 10K f or DTV R486 NC 10K TS_CLK I2C_SDA 3 3V Demod M_SDA 10 Demod M_SCL 10 R471 1M 1 10W f or DTV R474 1 2K 1 16W f or DTV C457 18PF 50V...

Страница 43: ...22 3 32K 1 R624 6 8K 1 ADO_GND ADO_GND ADO_GND R612 100OHM R625 100OHM AV_R_OUT L C630 330pF 50V R620 10 OHM 1 4W C638 100N 50V C639 1NF 50V C620 0 22uF 50V C626 330pF 50V C631 1UF 50V C628 0 22uF 50V...

Страница 44: ...2uF 10V R736 10K AV_AUOUTR3 5 AV_AUOUTL3 AV_AUOUTR3 HP_OUT_L 7 HP_OUT_R 7 AV_AUOUTL3 5 HP_OUT_R HP_OUT_L C643 100N 16V APA2176A U606 NC 13 PVDD 16 NC 4 CP 1 PGND 2 CP 3 CVSS 5 VSS 6 LOUT 7 VDD 8 ROUT...

Страница 45: ...50V NC 16V R9131 1K OHM 5 1 8W C9119 100N 50V R9107 82K OHM 1 D9113 SR510 22 1 2 D9105 FR107 IC9103 AS431AN E1 065G 1K222 2T6921 PITHC5 0 125 PITCH 7 5mm 065G 1K22293S SG9901 DSPL 501N A21F NC R9121 4...

Страница 46: ...MPER 095G 90 23 5 2V CN8104 LNT D8102 1N4148W 16V VADJ VBJT SLP C8108 10N 50V R8101 51K 1 8W 1 R8122 10R5 1 R8123 10R5 1 R8124 10R5 1 VLED 311AF050 H10 ABB R8125 10R5 1 Q8103 2N3904 Q8102 2N3904 R8103...

Страница 47: ...K 1 10W 5 R301 2K2 1 10W 5 LED301 LED 1 2 Red The item of LED function start from 301 315 The item of IR function start from 201 215 The item of key fumction start from 001 015 CN201 CONN 1 2 3 4 5 6...

Страница 48: ...48 10 Exploded View...

Страница 49: ...ARD 1 5 378G0060566HBE 8 OHM 6W 100 x 27 0 UNIT 2 6 X15T905110100000BL BKT_MID 1 7 Q52G18010TV18200ZA INSULATING SHEET 1 8 CBPFD3QSX5Q MAIN BOARD 1 9 X15T905230100000LH BKT_IO 1 10 X40G2013020X0700XY...

Страница 50: ...TAPE Y1200141 Q45G 77511 PROTECT BAG Q50G 4 10 TIE Y1900221 E750 750GBV195100B6N000 LCD TPM195WD1 RTN01 000B WH TPV 2nd Source 756TXDCB01S034002Q MCU ASSY SMTF U402 100TAMVA001S2X MCU ASSY 356G223307...

Страница 51: ...NK CN401 033G803210F HR CONNECTOR 10P 1 25 U703 056G 133 30AAC DC DC AZ1117H ADJ E1 1A adj SOT 223 U166 056G 563149 IC G903T63UF 0 6A 3 3V SOT 223 U702 056G 563515 LDO AZ1117D 3 3TR E1 1A 3 3V TO 252...

Страница 52: ...RST 0402 0 05R MAX 1 16W R623 061G0402100 JF RST CHIPR 10 OHM 5 1 16W FENGHUA R626 061G0402100 JF RST CHIPR 10 OHM 5 1 16W FENGHUA R621 061G0402100 JF RST CHIPR 10 OHM 5 1 16W FENGHUA R721 061G040210...

Страница 53: ...04 JF RST CHIPR 100KOHM 5 1 16W FENGHUA R413 061G0402104 JF RST CHIPR 100KOHM 5 1 16W FENGHUA R154 061G0402104 JT RST CHIP 100K 1 16W 5 TZAI YUAN R153 061G0402104 JT RST CHIP 100K 1 16W 5 TZAI YUAN R6...

Страница 54: ...4K7 1 16W 5 TZAI YUAN R491 061G0402472 JT RST CHIP 4K7 1 16W 5 TZAI YUAN R422 061G0402472 JT RST CHIP 4K7 1 16W 5 TZAI YUAN R2917 061G0402472 JY RST 0402 4 7K 5 1 16W RC0402JR 074K7L R780 061G0402473...

Страница 55: ...R C424 065G040210412K Y CAP 0402 100NF 10 16V X7R C428 065G040210412K Y CAP 0402 100NF 10 16V X7R C714 065G040210412K Y CAP 0402 100NF 10 16V X7R C422 065G040210412K Y CAP 0402 100NF 10 16V X7R C701 0...

Страница 56: ...131J T AP CHIP 0402 330PF 50V J NPO C630 065G040233131J T AP CHIP 0402 330PF 50V J NPO C623 065G040233131J T AP CHIP 0402 330PF 50V J NPO C118 065G040247131J A CAP CHIP 0402 470PF J 50V NPO C119 065G0...

Страница 57: ...AP 0805 220NF 10 50V X7R C723 065G080522605M A CAP 0805 22UF 20 6 3V X5R C719 065G080522605M M CAP 0805 22UF 20 6 3V X5R C720 065G080522605M M CAP 0805 22UF 20 6 3V X5R C709 065G080522605M M CAP 0805...

Страница 58: ...EC SMD 100uF 35V 20 35V 6 3x7 7 2000 hr X401 393G022SA3400H CRYSTAL X3S024000DC1H HU 20 12pF 709T57490XS001 COMSUMPTIVE ASSY 055G 100610 TIN CREAM W O PB Q52G6026 7 mesh printting paper E715 715G5749...

Страница 59: ...SR515 04 X0G 5A 150V DO 201AD 0Q1G 340 8140 SCREW Q1 SELF TAPING SCREW Q x8 0 CN9904 311GW250B13BBX WAFER 2 5mm 13P R A 35mm 7mm RV9901 361G0046621KZE VARISTOR 620V 10 NR9902 361G0058159LAW005A NTCR 1...

Страница 60: ...GHUA R8108 061G0805201 JT RST CHIPR 200OHM 5 1 8W TZAI YUAN R8104 061G0805220 JF RST CHIPR 22 OHM 5 1 8W FENGHUA R8104 061G0805220 JT RST CHIPR 22OHM 5 1 8W TZAI YUAN R8105 061G0805229 JF RST CHIPR 2R...

Страница 61: ...06682 JF RST CHIPR 6 8KOHM 5 1 4W FENGHUA R9101 061G1206682 JF RST CHIPR 6 8KOHM 5 1 4W FENGHUA R9103 061G1206682 JF RST CHIPR 6 8KOHM 5 1 4W FENGHUA R9101 061G1206682 JT RST CHIPR 6 8 KOHM 5 1 4W TZA...

Страница 62: ...7 Q8101 357G0763A03 MOSFET EMBA0N10G 5A 100V 3W SO8 R8121 361G08051059FT RST 0805 10R5 1 1 8W SMD080510R5F R8125 361G08051059FT RST 0805 10R5 1 1 8W SMD080510R5F R8123 361G08051059FT RST 0805 10R5 1...

Страница 63: ...FB9905 071G 55 29 FERRITE BEAD C9908 065G306K22123R CAP Y1 220PF 10 250V Y5P C9102 006G 31502 EYELET L9901 006G 31502 EYELET Q8105 057G 417513 T TRA 2N3904 TO 92 D9103 093G 6026T52T CTIFIER DIODE FR1...

Страница 64: ...0 250V Y5P CT7 Y1 250V 06 C9907 065G306K1012WR CAP Y1 100PF 10 250V Y5P CT7 Y1 250V 06 P33T0604ALD01C0100 LENS TV20W9aa51 P34T1027ADT01L0100 STAND TV20W9aa51 NA NA P34T1028ADT01L0100 BASE TV20W9aa51 N...

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