AOC L32H961 Service Manual

32"
Hide thumbs Also See for L32H961:

Advertisement

Quick Links

32 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 Menu.................................................6
2.3 How to Connect................................................11
2.4 Front Panel Control Knobs..................................17
3. Input/Output Specification.......................................18
4. Mechanical Instructions.........................................20
5. Repair Flow Chart ..............................................23
6. PCB Layout .......................................................28
6.1 Main Board.......................................................28
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

TABLE OF CONTENTS

SAFETY NOTICE
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Page
Description
6.2 Power Board..................................................30
6.3 Inverter Board................................................32
6.4 Key Board.....................................................33
6.5 IR Board.......................................................33
7. Adjustment.......................................................34
8. Block Diagram........................................................37
9. Schematic.......................................................38
9.1 Main Board....................................................38
9.2 Power Board..................................................50
9.3 Inverter Board................................................52
9.4 Key Board.....................................................53
9.5 IR Board........................................................54
10. Exploded View..............................................55
11. BOM List......................................................56
1
AOC L32H961
Horizontal Frequency
31.5~60 KHz
Page

Advertisement

Table of Contents
loading

Summary of Contents for AOC L32H961

  • Page 1: Table Of Contents

    32 LCD TV AOC L32H961 Service Service Service Horizontal Frequency 31.5~60 KHz TABLE OF CONTENTS Description Page Description Page Table of Contents..……........…..1 6.2 Power Board……..……………….…….………..30 Important Safety Notice........……..2 6.3 Inverter Board…………………….…….………..32 Revision List…………………………………………………3 6.4 Key Board………………………..……..………..33 1. General Specification......……...…..4 6.5 IR Board………………………….……..………..33 2.
  • Page 2: Important Safety Notice

    AOC L32H961 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

    32 LCD TV AOC L32H961 Revision List Version Release Date Revision Instructions TPV Model Jul.-17-2009 Initial Release E32RMZNS4WAENN...
  • Page 4: General Specification

    32 LCD TV AOC L32H961 1. General Specification...
  • Page 5: Operating Instructions

    32 LCD TV AOC L32H961 2. Operating Instructions 2.1 The Use of Remote Control...
  • Page 6: To Use The Menu

    32 LCD TV AOC L32H961 2.2 To Use the Menus 1. Press the MENU/EXIT button to display or close the main menu. 2. Use the Navigation Ring to move around to select, adjust or confirm an item in the OSD (On Screen Display) menu.
  • Page 7 32 LCD TV AOC L32H961 1. Picture Mode: Adjust the best picture appearance from selecting the preset value of Vivid, Standard, PWR(Energy savings), Theater, Sport, or Custom. 2. Brightness: Video brightness adjustment, the tuning range is 0 ~ 100. 3. Contrast: Video contrast adjustment, the tuning range is 0 ~ 100.
  • Page 8 32 LCD TV AOC L32H961 1. Menu Language: Select the menu display language. (English / Français / Español) 2. Time: Set current time. The sub-menu includes Time Mode, Time Zone and Daylight Savings. [Time Mode] – Choose from Auto or Manual.
  • Page 9 32 LCD TV AOC L32H961 6. Parental Control: provide the parental Control (V-chip) function setting. Before entering the Parental Control sub-menu, user has to key in the password first. Enter the Parental Locks item, then the user can modify the restricted table about MPAA or TV Rating respectively.
  • Page 10 32 LCD TV AOC L32H961 7. Closed Captions: Select a closed caption options. (Off /On / With Mute) 8. Analog Captions: Select an analog caption options. (CC 1-4 / TEXT 1-4) 9. Digital Captions: Select a digital caption options. (SERVICE 1-6) 10.
  • Page 11: How To Connect

    32 LCD TV AOC L32H961 2.3 How to Connect Connecting Equipment Coaxial (RF) Using Your Antenna or Digital Cable for DTV 1. Turn off the the HDTV. 2. Connect the coaxial (RF) connector from your antenna or digital cable (out-of-the-wall, not from the Cable Box) to the TV connector.
  • Page 12 32 LCD TV AOC L32H961 2. Connect the “Output to TV”, “RF Out” or “Antenna Out” connector on the rear of your VCR to the TV connector at the rear of the HDTV. 3. Turn on the HDTV and VCR.
  • Page 13 32 LCD TV AOC L32H961 2. Connect the Pr (red color) connector on your HDTV Set-Top Box to the corresponding Pr (red color) connector in the Component group. 3. Connect the Pb (blue color) connector on your HDTV Set-Top Box to the corresponding Pb (blue color) connector in the Component group.
  • Page 14 32 LCD TV AOC L32H961 Connecting Your DVD Player Using HDMI DVD players that have a digital interface such as HDMI (High Definition Multimedia Interface) should be connected to the HDMI input of the LCD HDTV for optimal results. Connecting your DVD Player (Best) 1.
  • Page 15 32 LCD TV AOC L32H961 4. Connect the Y (green color) connector on your DVD player to the corresponding Y (green color) connector in the Component group at the rear of the HDTV. 5. Using an audio cable (red and white connectors), connect the cable to the audio output connectors associated with the Component output on your DVD player and connect the other end to the audio connectors associated with the Component input at the rear of the HDTV.
  • Page 16 32 LCD TV AOC L32H961 Connecting Your VCR or Video Camera 1. Turn off the HDTV and VCR or Video Camera. 2. Connect the S-Video jack on the rear of your VCR or Video Camera to the S-Video jack in the AV group on the rear of the HDTV.
  • Page 17: Front Panel Control Knobs

    32 LCD TV AOC L32H961 2.4 Front Panel Control Knobs...
  • Page 18: Input/Output Specification

    32 LCD TV AOC L32H961 3. Input/Output Specification 3.1 RGB Signal Input 15 - Pin Color Display Signal Cable Pin No. Description Pin No. Description Red Video No Pin Green Video Sync Ground Blue Video SDA(Remote Control) SCL(Remote Control) Serial Data for DDC Ground H-Sync.
  • Page 19 32 LCD TV AOC L32H961 3.3 AV/S-Video/Component Video Inputs AV (Composite Video Input) Video1 System NTSC Amplitude 1.0 V (p-p), negative sync. Impedance 75 ohm terminated S-Video (Y / C Input) S-Video2 System NTSC Y signal amplitude 1.0Vpp (including sync) C signal amplitude 0.286Vpp...
  • Page 20: Mechanical Instructions

    32 LCD TV AOC L32H961 4. Mechanical Instructions 1. Remove the screws to remove the stand base and rear cover. 2. Release connectors.
  • Page 21 32 LCD TV AOC L32H961 3. Remove the screws to remove main board and power board. 4. Remove the screws to remove bracket. 5. Remove the screws to remove bracket, inverter board, speaker and panel.
  • Page 22 32 LCD TV AOC L32H961 6. Remove key board and IR board.
  • Page 23: Repair Flow Chart

    32 LCD TV AOC L32H961 5. Repair Flow Chart 1. No Power (No LED Indicator) Plug in power cord and interface Check power cord and board interface Replace F901 or BD901 or C920 Check F901, BD901, C920 Check D931, D932...
  • Page 24 32 LCD TV AOC L32H961 3. No Display (LED Indicator Green) Check 12V Check PS Check power Check back light is OK power supply signal board Check BL-ON/OFF signal Check LVDS cable and connector Replace U401 Check U401 Replace Q702, Q704...
  • Page 25 32 LCD TV AOC L32H961 4. Abnormal Display Check the source Reset source Check signal filter circuit Replace the filter or inductance Check input signal TV signal Check TV system setup Replace TU201 Check TU201 AV, S-video, Comp PC HDMI signal...
  • Page 26 32 LCD TV AOC L32H961 5. No Sound Reset source Check the source Check signal filter circuit Replace the filter or inductance Replace the Earphone jack Check Earphone jack Check input signal SIF signal Check TV system setup Replace TU201...
  • Page 27 32 LCD TV AOC L32H961 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 Replace Key Pad Board Is Key Pad Board Normally?
  • Page 28: Pcb Layout

    32 LCD TV AOC L32H961 6. PCB Layout 6.1 Main Board 715G3269 1...
  • Page 29 32 LCD TV AOC L32H961...
  • Page 30: Power Board

    32 LCD TV AOC L32H961 6.2 Power Board 715G3332 1...
  • Page 31 32 LCD TV AOC L32H961...
  • Page 32: Inverter Board

    32 LCD TV AOC L32H961 6.3 Inverter Board 715G3333 1...
  • Page 33: Key Board

    32 LCD TV AOC L32H961 6.4 Key Board 715G3400 1 6.5 IR Board 715G3394 2...
  • Page 34: Adjustment

    32 LCD TV AOC L32H961 7. Adjustment 7.1 ADC adjustment . In the TV mode adjust volume to zero, press menu key and then press number key 1 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu follow picture: Change TV, press the item “Current Source”...
  • Page 35 32 LCD TV AOC L32H961 meeting to the Zoran 775 software. HDMI mode: . In the TV mode adjust volume to zero, press menu key and then press number key 1 9. It will achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu follow picture: .before to adjust the white balance, please press the factory mode OSD of “Reset”...
  • Page 36 32 LCD TV AOC L32H961 7. Adjust item “ZR-Contrast” to check color temperature is saturation or not: Add by 7 steps and then to adjust the item R Gain and item B Gain to check the color temperature is saturation or not, until is saturation.
  • Page 42 1 2 3 4...
  • Page 56: Bom List

    32 LCD TV AOC L32H961 11. BOM List E32RMZNS4WAENN Location Part No. Description Remark 026G 800504 3 BARCODE LABEL FOR 4 052G 1150 C INSULATING TAPE 052G 1185 1 BIG TAPE 052G 1186 SMALL TAPE 052G 1205 A ALUMINIUM TAPE...
  • Page 57 32 LCD TV AOC L32H961 L602 073G 253158 H CHOKE COIL 22UH+/-25% L603 073G 253158 H CHOKE COIL 22UH+/-25% CN607 088G 30211K PHONE JACK 5PIN CN402 088G 352903 TN USB CONNECTOR A TYPE SMT 5401-E02-110-72 CN601 088T 78 1357C RCA JACK 1*1 W+R V/A...
  • Page 58 32 LCD TV AOC L32H961 C665 067T 305471 2T CAP 105 470UF 10V C661 067T 305471 2T CAP 105 470UF 10V U601 056G 158501 IC AS431AN-E1 SOT23 U605 056G 192 20 IC TL072CDR SOIC-8 U702 056G 563 33 AIC1084-18PE U703...
  • Page 59 32 LCD TV AOC L32H961 Q614 057G 763 62 FET 2N7002K 300MA/60V SOT-23 Q502 057G 763 62 FET 2N7002K 300MA/60V SOT-23 Q503 057G 763 62 FET 2N7002K 300MA/60V SOT-23 Q404 057G 763 79 FET AO4449 -7A/-30V SOIC-8 Q703 057G 763 79...
  • Page 60 32 LCD TV AOC L32H961 R645 061G0603102 RST CHIPR 1K OHM +-5% 1/10W R707 061G0603102 RST CHIPR 1K OHM +-5% 1/10W R479 061G0603102 RST CHIPR 1K OHM +-5% 1/10W R468 061G0603102 RST CHIPR 1K OHM +-5% 1/10W R467 061G0603102 RST CHIPR 1K OHM +-5% 1/10W...
  • Page 61 32 LCD TV AOC L32H961 R236 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R234 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R232 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R4B8 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R606 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W...
  • Page 62 32 LCD TV AOC L32H961 R425 061G0603222 RST CHIPR 2.2 KOHM +-5% 1/10W R424 061G0603222 RST CHIPR 2.2 KOHM +-5% 1/10W R423 061G0603222 RST CHIPR 2.2 KOHM +-5% 1/10W R204 061G0603222 RST CHIPR 2.2 KOHM +-5% 1/10W R203 061G0603222 RST CHIPR 2.2 KOHM +-5% 1/10W...
  • Page 63 32 LCD TV AOC L32H961 R429 061G0603472 RST CHIPR 4.7K OHM +-5% 1/10W R435 061G0603472 RST CHIPR 4.7K OHM +-5% 1/10W R448 061G0603472 RST CHIPR 4.7K OHM +-5% 1/10W R450 061G0603472 RST CHIPR 4.7K OHM +-5% 1/10W R451 061G0603472 RST CHIPR 4.7K OHM +-5% 1/10W...
  • Page 64 32 LCD TV AOC L32H961 R222 061G0603750 9F RST CHIPR 75 OHM +-1% 1/10W R221 061G0603750 9F RST CHIPR 75 OHM +-1% 1/10W R220 061G0603750 9F RST CHIPR 75 OHM +-1% 1/10W R219 061G0603750 9F RST CHIPR 75 OHM +-1% 1/10W...
  • Page 65 32 LCD TV AOC L32H961 C4B1 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C4B2 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C4B3 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C4B4 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R...
  • Page 66 32 LCD TV AOC L32H961 C616 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R C617 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R C618 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R C667 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R...
  • Page 67 32 LCD TV AOC L32H961 C4E2 065G0603103 32 CAP CHIP 0603 0.01UF K 50V X7R C4E7 065G0603103 32 CAP CHIP 0603 0.01UF K 50V X7R C451 065G0603104 12 CER2 0603 X7R 16V 100N P C487 065G0603104 12 CER2 0603 X7R 16V 100N P...
  • Page 68 32 LCD TV AOC L32H961 C733 065G0603104 12 CER2 0603 X7R 16V 100N P C738 065G0603104 12 CER2 0603 X7R 16V 100N P C742 065G0603104 12 CER2 0603 X7R 16V 100N P C747 065G0603104 12 CER2 0603 X7R 16V 100N P...
  • Page 69 32 LCD TV AOC L32H961 C244 065G0603224 22 CHIP 0.22UF 25V X7R C242 065G0603224 22 CHIP 0.22UF 25V X7R C241 065G0603224 22 CHIP 0.22UF 25V X7R C240 065G0603224 22 CHIP 0.22UF 25V X7R C238 065G0603224 22 CHIP 0.22UF 25V X7R...
  • Page 70 32 LCD TV AOC L32H961 C601 065G0805225 22 CHIP 2.2UF 25V X7R 0805 C642 065G0805333 32 CHIP 0.033UF 50V C646 065G0805333 32 CHIP 0.033UF 50V C723 065G0805475 A2 CAP CHIP 4.7UF 10V X7R +/- 10% C759 065G0805475 A2 CAP CHIP 4.7UF 10V X7R +/- 10%...
  • Page 71 32 LCD TV AOC L32H961 FB614 071G 59C300 CHIP BEAD FB615 071G 59C300 CHIP BEAD FB406 071G 59G301 CHIP BEAD 300OHM FB419 071G 59G301 CHIP BEAD 300OHM FB421 071G 59G301 CHIP BEAD 300OHM FB422 071G 59G301 CHIP BEAD 300OHM FB607...
  • Page 72 32 LCD TV AOC L32H961 ZD603 093G 64 37 N VPORT0603100KV05 ZD602 093G 64 37 N VPORT0603100KV05 ZD601 093G 64 37 N VPORT0603100KV05 ZD207 093G 64 37 N VPORT0603100KV05 ZD203 093G 64 37 N VPORT0603100KV05 ZD202 093G 64 37 N...
  • Page 73 32 LCD TV AOC L32H961 C8812 065G 6J1006ET 10PF 5% SL 6KV C8811 065G 6J1006ET 10PF 5% SL 6KV C8810 065G 6J1006ET 10PF 5% SL 6KV C8809 065G 6J1006ET 10PF 5% SL 6KV C8808 065G 6J1006ET 10PF 5% SL 6KV...
  • Page 74 32 LCD TV AOC L32H961 C8801 065G080510232K CAP CHIP 0805 1N 50V X7R +/-10% C8825 065G080518332K CAP CHIP 0805 18N 50V X7R +/-10% C8824 065G080518332K CAP CHIP 0805 18N 50V X7R +/-10% C8823 065G080518332K CAP CHIP 0805 18N 50V X7R +/-10%...
  • Page 75 32 LCD TV AOC L32H961 J8803 095G 90 23 JUMPER WIRE J8804 095G 90 23 JUMPER WIRE J8813 095G 90 23 JUMPER WIRE J8810 095G 90 23 JUMPER WIRE J8809 095G 90 23 JUMPER WIRE J8808 095G 90 23 JUMPER WIRE...
  • Page 76 32 LCD TV AOC L32H961 CN802 033G3802 5B Y WEAFER CN801 033G8029 3A 3PIN (2PIN NC) CN902 033T327812D WAFER 12P PLUG CN802 033T3802 5B Y CONNECTOR 051T 6 4503 GLUE_RTV IC950 056G 139 7 IC EL817MC M-TYPE IC951 056G 139 7...
  • Page 77 32 LCD TV AOC L32H961 705TQ857023 Q903 ASS'Y Q903 057G 667 21 STP10NK70ZFP 0M1G1730 8120 SCREW Q90T6084 6 HEAT SINK 705TQ857024 Q801/Q802 ASS'Y Q801 057G 667 49 FET 2SK4086LS 11.5A/600V TO-220FI(LS) Q802 057G 667 49 FET 2SK4086LS 11.5A/600V TO-220FI(LS) Q802...
  • Page 78 32 LCD TV AOC L32H961 R955 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R956 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R982 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R983 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R989 061G0805102 RST CHIPR 1K...
  • Page 79 32 LCD TV AOC L32H961 JR903 061G1206000 RST CHIP MAX 0R05 1/4W JR902 061G1206000 RST CHIP MAX 0R05 1/4W JR901 061G1206000 RST CHIP MAX 0R05 1/4W JR805 061G1206000 RST CHIP MAX 0R05 1/4W JR804 061G1206000 RST CHIP MAX 0R05 1/4W...
  • Page 80 32 LCD TV AOC L32H961 R962 061G1206475 RST CHIPR 4.7 MOHM +-5% 1/4W R942 061G1206513 RST CHIPR 51 KOHM +-5% 1/4W R920 061G1206680 3F RST CHIPR 680KOHM +-1% 1/4W R921 061G1206680 3F RST CHIPR 680KOHM +-1% 1/4W R922 061G1206680 3F...
  • Page 81 32 LCD TV AOC L32H961 C972 065G1206102 72 CAP CHIP 1206 1000PF K 500V X7R D805 093G 64 42 PP BAV70 SOT-23 D804 093T 60S 5 T SCS0520P SOD-123 D803 093T 60S 5 T SCS0520P SOD-123 D802 093T 60S 5 T...
  • Page 82 32 LCD TV AOC L32H961 J902 095G 90 23 JUMPER WIRE J809 095G 90 23 JUMPER WIRE J927 095G 90 23 JUMPER WIRE J926 095G 90 23 JUMPER WIRE J925 095G 90 23 JUMPER WIRE J923 095G 90 23 JUMPER WIRE...
  • Page 83 32 LCD TV AOC L32H961 Q40G000361510A POP LABEL Q44GJ041101EPE Q44GJ041201EPE Q44GJ041301EPE Q44GJ041401EPE Q44GJ041615 1A 32" AOC TV CARTON Q45G 77 5 PE PACKING Q45G 99626 36 PE BAG Q45T 99609 61 EPE COVER FOR MONITOR Q50G 4 10 Q50T 500523...

Table of Contents