AOC LE32A1335 Service Manual
AOC LE32A1335 Service Manual

AOC LE32A1335 Service Manual

31.5" lcd tv

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31.5"LCD TV
Service
Service
Service
Description
Table of Contents............................................................1
Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification..................................................4
2. Operating Instructions............................................5
2.1 The Use of Remote Control...................................5
2.2 To Use the Menus................................................6
2.3 How to Connect................................................19
2.4 Front Panel Control Knobs..................................21
3. Input/ Output Specification....................................22
4. Mechanical Instructions.........................................24
5. Repair Flow Chart ..............................................27
6. PCB Layout ....................................................34
6.1 Main Board..................................................34
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Copyright © 2012 by TPV Corporation. All rights reserved. Specifications are subject to change without notice.
No part of this publication may be reproduced in any form or means, without the prior written permission of TPV Corporation. Otherwise we will
reserve the right to investigate the legal responsibility.

TABLE OF CONTENTS

SAFETY NOTICE
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Page
Description
6.2 Power Board..................................................37
6.3 Key Board....................................................40
6.4 IR Board.......................................................40
6.5 Daughter Board...........................................40
7. Adjustment..............................................................41
8. Schematic Diagram..........................................42
8.1 Main Board..................................................42
8.2 Power Board..................................................51
8.3 Key Board.....................................................53
8.4 IR Board........................................................54
8.5 Daughter Board..............................................55
9. Exploded View..............................................56
10. BOM List...................................................58
1
AOC LE32A1335/64
Horizontal Frequency
31.5~60 KHz
Page

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Summary of Contents for AOC LE32A1335

  • Page 1: Table Of Contents

    31.5″LCD TV AOC LE32A1335/64 Service Service Service Horizontal Frequency 31.5~60 KHz TABLE OF CONTENTS Description Page Description Page Table of Contents..……........…..1 6.2 Power Board……...…………..….…….………..37 Important Safety Notice........……..2 6.3 Key Board…...…………………………………..40 Revision List…………………………………………………3 6.4 IR Board…...……………………………………..40 1. General Specification......……...…..4 6.5 Daughter Board………………………………..40 2.
  • Page 2: Important Safety Notice

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.
  • Page 3: Revision List

    Revision List Version Release Date Revision Instructions Customer Model TPV Model Sep.02.2013 Initial release LE32A1335/64 E32DO1NCCQACNNX...
  • Page 4: General Specification

    1. General Specification...
  • Page 5: Operating Instructions

    2. Operating Instructions 2.1 The Use of Remote Control...
  • Page 6: To Use The Menus

    2.2 To Use the Menus...
  • Page 19: How To Connect

    2.3 How to Connect...
  • Page 21: Front Panel Control Knobs

    2.4 Front Panel Control Knobs...
  • Page 22: Input/ Output Specification

    3. Input / Output Specification RGB Signal Input 15 - Pin Color Display Signal Cable Pin No. Description Pin No. Description Red Video Green Video Sync Ground Blue Video Not Used Not Used Serial Data for DDC Ground H-Sync. Red Ground V-Sync.
  • Page 23 Compatible Mode Table RGB Input Signal Timing Vertical Horizontal Sync Polarity Presence Screen Mode Frequency Frequency Horizontal Vertical Horizontal Vertical FULL Dots × Lines (Hz) (KHz) (16:9) 59.9 31.5 640 X 480 69.6 31.3 720 X 400 37.9 800 X 600 48.3 1024 x 768 47.7...
  • Page 24: Mechanical Instructions

    4. Mechanical Instructions 1. Remove the screws to remove BASE. 2. Remove the screws to remove REAR COVER.
  • Page 25 3. Remove the screws to remove SPEAKERS,BTK, MAIN BOARD and POWER BOARD. 4. Remove the IR board.
  • Page 26 5. Remove the screws to remove the Panel.
  • Page 27: Repair Flow Chart

    5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Power board Replace the power board output=5.2V? Check the IR board and LED Replace the IR board Replace the main board...
  • Page 28 2. Can’t start Can’t start (LED red) Replace the power board Power board output=12/16V? Replace the key board Check the power key is under control? Replace the IR board Check the IR receiver is normal? Replace the main board Replace the Power board...
  • Page 29 3. Abnormal display Abnormal Display Reset the source Check the source Enter factory mode to do “EEPROM initial”&“Reset” Replace the main board Check the main board Check the LVDS cable Replace the LVDS cable Check the panel Replace the panel...
  • Page 30 4. No display No display (No LED) Check TV is under control and power Replace the main board on/off by remote control and power key? Check the backlight is “On”? Check the LVDS cable Check the B/L signal is available? Reinsert or replace the LVDS cable Replace main board...
  • Page 31 5. Sound problem No sound or sound abnormal Check the audio source connection and the TV system are correct? Reinsert the audio cable or change the TV system Check the TV is muted, adjust the volume or enter the menu to reset? Enter factory mode to do “Reset”...
  • Page 32 6. Remote control malfunction Remote Control malfunction Check the remote control battery is Replace the battery not properly placed or no power? Use the other remote controls Replace the remote control Whether the IR board is Replace the IR board abnormal? Replace the main board...
  • Page 33 7. OSD is unstable or can’t work normally OSD is unstable or can’t work normally Key board connected properly? Reconnect the key board Replace the button function Buttons are OK? Replace the key board Key board is OK? Enter factory mode to do “Reset” Replace the main board...
  • Page 34: Pcb Layout

    6. PCB Layout 6.1 Main board 715G5740M01000004K...
  • Page 37: Power Board

    6.2 Power Board 715G5930P01000002M...
  • Page 40: Key Board

    6.3 Key Board 715G5711K01000004S 6.4 IR Board 715G5671R01000004X 6.5 Daughter Board 715G5912T02000004S...
  • Page 41: Adjustment

    7. Adjustment (Take other model for example) ADC Adjustment 1. Factory Mode Turn on the TV. Press RC key ‘menu’+’1’+’9’+’9’+’9’ or ‘menu’+’1’+’9’+’9’+’9’+’ok’.It will achieve the factory mode. 2. ADC Adjustment (It’s no need to adjust ADC.) (1) Enter into the factory mode :(same as the above-mentioned) (2) Select item “Source”: Ypbpr a.
  • Page 42: Schematic Diagram

    8. Schematic Diagram 8.1 Main Board 715G5740M01000004K Backlight Control +5V_Normal +5V_Normal 6-12 From R702 R728 Hi: Off Power Low: On BL_EN Board Q702 R704 BL_EN C702 R703 BL_PWM CN701 NC/10N 50V NC/10K Q707 VBL_CTRL P12V MMBT3904 R727 4.7K VBL_CTRL P12V MMBT3904 C703 C704...
  • Page 43 +5V_Standby H/W Reset R403 D401 1M 1/16W BAV99 HDMI_HP1 HOTPLUG1 HDMI1-SCL HDMI1_DDC_SCL HDMI1-SDA RXO0- HDMI1_DDC_SDA R404 RXO0- HDMI1-CLKP RXO0+ C402 HDMI1_CLK+ RXO0+ HDMI1-CLKN RXO1- HDMI1_CLK- RXO1- HDMI1-RX0P 2.2UF 16V RXO1+ HDMI1_D0+ RXO1+ HDMI1-RX0N RXO2- Q402 HDMI1_D0- 4.7K 1/16W RXO2- HDMI1-RX1P RXO2+ MMBT3906 C403...
  • Page 44 RXO0- RXO0- RXO0+ R437 0oHM RXO0+ RXO1- P12V RXO1- RXO1+ Panel Power RXO1+ RXO2- R438 RXO2- RXO2+ +5V_Standby RXO2+ RXOC- RXOC- NC/0oHM PANEL_VCC RXOC+ RXOC+ RXO3- AO4449 -7A/-30V RXO3- RXO3+ C401 Q401 RXO3+ R439 100K 220N 25V RXE0- R473 C437 C438 R440 RXE0-...
  • Page 45 YPBPR Video/Audio IN CVBS Out FB102 +5V_Normal Close IC side 300R R102 C103 C104 C102 47nF 16V 33 OHM 1/16W R147 100N 16V 1uF 10V R104 AV2-CVBS0P C449 R103 C105 47nF 16V 33 OHM 1/16W 220R 1/16W ZD102 33 OHM 1/16W 47nF 16V 2Vp-p AGND...
  • Page 46 From Main Chip CN501 CN502 HDMI0-RX2P HDMI0_D2+ HDMI0-RX2N SHLD0 SHLD0 HDMI0_D2- HDMI0_D2+ R515 4.99ohm 1/16W +/-1% HDMI1_D2+ R523 4.99ohm 1/16W +/-1% HDMI0-RX1P TMDSD2+ TMDSD2+ HDMI0_D1+ HDMI0-RX1N DGND DSHLD0 SHLD2 DSHLD0 SHLD2 HDMI0_D1- HDMI0_D2- HDMI1_D2- HDMI0-RX0P R516 4.99ohm 1/16W +/-1% R524 4.99ohm 1/16W +/-1% TMDSD2- TMDSD2-...
  • Page 47 HP_OUT_R HP_OUT_R AV_AUOUTR3 AV_AUOUTR3 HP_OUT_L HP_OUT_L AV_AUOUTL3 AV_AUOUTL3 +5V_Normal FB601 300R C601 C602 100NF 16V 10UF 10V U602 C603 C605 C606 NC/1.5nF 50V 1.5nF 50V 1UF16V R603 AV_AUOUTR3 C604 R602 200OHM1/16W 1UF16V 0R05 OHM APA2176A HP_SD R604 100OHM1/16W HP_DET PGND /RSD AV_AUOUTL3 R606...
  • Page 48 Silicon Tuner 300mA Tuner Power 1K_100MHz/400_400MHz TUNER AGND DGND 3.3V_TUNER +5V_Normal TU101 3.3V_TUNER U101 FB101 Main Chip <--> VOUT 300mA 1000OHM C129 C130 TUN_IF+ VIFP TUN_IF- C127 VIFM 2.2UF 16V Tuner3.3V 3.3V_TUNER 10uF 10V C128 100UF 16V C101 3.3V SCL_CAN 100N 16V 100N 16V SDA_CAN...
  • Page 49 AV_L_OUT# R609 1.2A Max AMP_AUOUTL0 10OHM1/16W U601 R610 AV_R_OUT# +5V_Normal AMP_AUOUTR0 10OHM1/16W Thermal Pad R611 R615 NC/100K 1/16W PVDD C612 C617 R614 AMP_STB R612 PVCCL NC/1NF 50V NC/1NF 50V Q601 AMP_MUTE NC/100K 1/16W MMBT3904 C613 100N 50V 100UF 35V 100UF 35V C614 C615 100N 50V...
  • Page 50 From Main Chip KEY 0-SAR0 KEY 0-SAR0 KEY 1-SAR1 KEY 1-SAR1 IRIN IRIN +3.3V_Standby LEDG LEDG +3.3V_Standby +3.3V_Standby LEDR LEDR FB409 +3.3V_Standby CN401 R456 R457 4K7 1/16W 1% 4K7 1/16W 1% 120R/6000mA LED-R LED-G R458 IRRX1 POWER_KEY KEY0-SAR0 LEDG 100OHM R461 R459 KEY _ADC1...
  • Page 51: Power Board

    8.2 Power Board 715G5930P01000002M R9145 100 OHM 1/4W R9146 100 OHM 1/4W BD9901 TS6B06G-01 C9142 2N2 50V FB9907 BEAD T9101 D9106 FME-220B POWER X'FMR C9143 L9103 2N2 50V 3.5uH +12V FB9903 C9121 C9117 C9104 BEAD R91 04 R9139 2N2 500V C9122 2N2 500V 100 OHM 1/4W...
  • Page 52 HS8101 NC/HEAT SINK L8102 D8103 SP10100 +24LED LED_SOURCE CN8902 C8101 33UH 100UF 50V C8105 C8108 R8116 C8117 LED_SOURCE 0.1UF 50V 330K 1% 1/8W C8107 47UF 100V C8106 47UF 100V LED_1 R8112 R8104 330K 1% 1/8W R8109 22OHM +-5% 1/8W Q8101 VCC_1 10R 1/8W 5% PB210BTF...
  • Page 53: Key Board

    8.3 Key Board 715G5711K01000004S SW01 VOL+ 2.48V~2.72V TACT SW FWRD H1.5MM 7K5 1/8W +/-1% SW02 VOL- 2.04V~2.22V TACT SW FWRD H1.5MM 2K7 1/8W 1% SW03 1.58V~1.79V TACT SW FWRD H1.5MM 1K8 +/-1% 1/8W CN01 SW04 FUNC_KEY 1.24~1.45V PWR-SW TACT SW FWRD H1.5MM CONN 1K 1/8W 1% SW05...
  • Page 54: Ir Board

    8.4 IR Board 715G5671R01000004X 081G 14 24 EL LED201 033G8032 5F HR LED_R R202 220 OHM 1/10W Top View LED_B R203 220 OHM 1/10W CN201 U201 R201 15K 1/16W R0402 10 mm R204 SMD IR IRM-H938M3/TR2 100R 1/10W 5% CONN R0603 C201 2.2UF 16V...
  • Page 55: Daughter Board

    8.5 Daughter Board 715G5912T02000004S CN002 CONN CN001 CONN T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size TPV MODEL 絬 隔 瓜 絪 腹 Key Component 02-Adapter PCB NAME <称爹> 称 爹 Sheet Date...
  • Page 56: Exploded View

    9. Exploded View...
  • Page 57 Item Description BEZEL DECO_BEZEL SPEAKER PANEL BKT_STAND COVER_STAND DECO_KEY REAR_COVER BASE KEY BOARD IR BOARD MAIN BOARD BKT_TOP Item Description ADAPTER BOARD LENS_POWER BOLT COVER_HINGE BKT_BTM BKT_STAND INSULATING SHEET BKT_STAND LENS_IR FOOT PAD...
  • Page 58: Bom List

    708GJA660CPX03 AOC 40(654Philippines ) Q45G 77 5 PE PACKING Q50G 4 10 TIE (Y1900221) Q52G 1185 99 BIG CARTON TAPE FOR AOC 72MM 708GJA660CPX04 AOC 20 (315 Philippines) Q45G 77 5 PE PACKING Q50G 4 10 TIE (Y1900221) Q52G 1185 99...
  • Page 59 Q706 057G 417511 MMBT3904 Q101 057G 417511 MMBT3904 Q702 057G 417511 MMBT3904 D502 057G 417511 MMBT3904 Q601 057G 417511 MMBT3904 Q707 057G 417511 MMBT3904 D503 057G 417511 MMBT3904 Q703 057G 417511 MMBT3904 Q704 057G 417511 MMBT3904 Q705 057G 417511 MMBT3904 Q102 057G 417512 MMBT3906...
  • Page 60 R711 061G0402102 JI RST 0402 1K 5% 1/16W TA-I R712 061G0402102 JI RST 0402 1K 5% 1/16W TA-I R707 061G0402102 JY RST CHIPR 1KOHM +-5% 1/16W YAGEO R709 061G0402102 JY RST CHIPR 1KOHM +-5% 1/16W YAGEO R704 061G0402102 JY RST CHIPR 1KOHM +-5% 1/16W YAGEO R726 061G0402103 JF RST CHIPR 10KOHM +-5% 1/16W FENGHUA...
  • Page 61 R106 061G0402330 JF RST CHIPR 33 OHM +-5% 1/16W FENGHUA R113 061G0402330 JF RST CHIPR 33 OHM +-5% 1/16W FENGHUA R135 061G0402330 JI RST 0402 33R 5% 1/16W R129 061G0402330 JI RST 0402 33R 5% 1/16W R122 061G0402330 JI RST 0402 33R 5% 1/16W R127 061G0402330 JI RST 0402 33R 5% 1/16W...
  • Page 62 R138 061G04024998FT RST 0402 4.99R 1% 1/16W SMD04024R99F R518 061G04024998FT RST 0402 4.99R 1% 1/16W SMD04024R99F R407 061G0402510 JF RST CHIP 51R 1/16W 5% FENGHUA R435 061G0402510 JF RST CHIP 51R 1/16W 5% FENGHUA R140 061G0402511 JI RST 0402 510R 5% 1/16W R132 061G0402680 JI RST 0402 68R 5% 1/16W...
  • Page 63 C422 065G040210412K CAP 0402 100NF 10% 16V X7R C434 065G040210412K CAP 0402 100NF 10% 16V X7R C429 065G040210412K CAP 0402 100NF 10% 16V X7R C716 065G040210412K CAP 0402 100NF 10% 16V X7R C101 065G040210412K CAP 0402 100NF 10% 16V X7R C128 065G040210412K CAP 0402 100NF 10% 16V X7R...
  • Page 64 C135 065G040256031J CAP 0402 56PF 5% 50V NP0 C613 065G060310432K CAP 0603 100NF 10% 50V X7R C618 065G060310432K CAP 0603 100NF 10% 50V X7R C638 065G060310432K CAP 0603 100NF 10% 50V X7R C725 065G060310512K CAP 0603 1UF 10% 16V X7R C604 065G060310512K CAP 0603 1UF 10% 16V X7R...
  • Page 65 C126 067G311R1013CT EC SMD 100UF 20% 16V ZV 6.3*5.5 C129 067G311R1013CT EC SMD 100UF 20% 16V ZV 6.3*5.5 C438 067G311R1013CT EC SMD 100UF 20% 16V ZV 6.3*5.5 C450 067G311R1013CT EC SMD 100UF 20% 16V ZV 6.3*5.5 C450 067G311R1013LT EC SMD 100UF 20% 16V 6.3*5.3 C129 067G311R1013LT EC SMD 100UF 20% 16V 6.3*5.3...
  • Page 66 ZD403 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD401 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD116 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD502 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD114 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD109 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ ZD101 093G 64S500 SU ESD MLVG04025R0QV05BP INPAQ...
  • Page 67 SW04 077G 607 2 HC TACT SW 4P 1.5mm 160g TS-4402-1.58B-01 SW03 077G 607 2 HC TACT SW 4P 1.5mm 160g TS-4402-1.58B-01 SW06 077G 607 2 HC TACT SW 4P 1.5mm 160g TS-4402-1.58B-01 SW07 077G 607 2 HC TACT SW 4P 1.5mm 160g TS-4402-1.58B-01 709T57110XS001 COMSUMPTIVE ASSY Q05G6054 1...
  • Page 68 705TXD93001 D9105+D9106 Assy HS9102 090G6241 1 HEAT SINK D9105 093G 52 57 RECTIFIER FMXA-2202S 20A 200V TO-220F D9106 093G 60258 DIODE FME-220B TO-220 SANKEN 0M1G1730 8120 SCREW 3x8 Q8105 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q8106 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q8104 057G 417 18 T PMBT3904 SOT-23 Q8103 057G 759 2A HF...
  • Page 69 R8116 061G08053303FF RST CHIP 330K 1/8W 1% R8116 061G08053303FT RST CHIP 330K 1% 1/8W R8112 061G08053303FT RST CHIP 330K 1% 1/8W R8108 061G0805331 JF RST CHIPR 330 OHM +-5% 1/8W FENGHUA R8108 061G0805331 JT RST CHIP 330R 1/8W 5% TZAI YUAN R9356 061G0805333 JI RST CHIPR 33KOHM +-5% 1/8W 0805...
  • Page 70 R8117 061G12062202FT RST 1206 22K 1% 1/4W TZAI YUAN R8128 061G1206333 JF RST CHIPR 33KOHM +-5% 1/4W FENGHUA R9112 061G1206339 JF RST CHIPR 3.3 OHM +-5% 1/4W FENGHUA R9112 061G1206339 JT RST CHIPR 3.3 OHM +-5% 1/4W TZAI YUAN R9109 061G1206471 JF RST CHIPR 470 OHM +-5% 1/4W FENGHUA R9109...
  • Page 71 C8103 065G080510532K CAP 0805 1UF 10% 50V X7R C8114 065G080510532K CAP 0805 1UF 10% 50V X7R C9142 065G080522232K CAP 0805 2.2NF 10% 50V X7R C9143 065G080522232K CAP 0805 2.2NF 10% 50V X7R C9142 065G080522232K CAP CHIP 0805 2N2 50V X7R +/-10% C9143 065G080522232K CAP CHIP 0805 2N2 50V X7R +/-10%...
  • Page 72 C9906 065G306K4712SR CAP Y1 470PF 10% 250V Y5P C9903 065G306K4712SR CAP Y1 470PF 10% 250V Y5P C9902 065G306K4712SR CAP Y1 470PF 10% 250V Y5P C9910 065G306K4712SR CAP Y1 470PF 10% 250V Y5P C8115 067G 3154704KB EC 47uF M 25V 5*11mm EG C9107 067G 3154707KT EC 47UF 20% 50V ER1H470MPN1007RU...
  • Page 73 BNC nf - 1*1 W 12.2 RFB01 388G303S0010HC BNC nf - 1*1 W 12.2 E08901 389G228A15N0IS AC POWER CORD 1500mm 398GRABD2NEACT REMOTE AOC YKF322-003 ENGLISH Q45G2010M0101A pe bag for manual Q45G88010TV07500X1 PROTECT BAG X41G32MV61536A MANUAL LE32A1335/64 philippines X41G78DV61510A WARRANTY CARD for Filipino...

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