Table of Contents
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31.5 & 39 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..............................................7
2.3 How to Connect................................................17
2.4 Front Panel Control Knobs..................................19
3. Input/Output Specification.......................................21
4. Mechanical Instructions.........................................23
5. Repair Flow Chart ..............................................29
6. PCB Layout .......................................................35
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
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
TABLE OF CONTENTS
Page Description
6.1 Main Board....................................................35
6.2 Power Board..................................................36
6.3 Key Board.....................................................39
6.4 IR Board.......................................................39
7. Adjustment.......................................................40
8. Block Diagram........................................................41
9. Schematic Diagram..........................................42
9.1 Main Board....................................................42
9.2 Power Board..................................................43
9.3 Key Board.....................................................47
9.4 IR Board........................................................48
10. Exploded View..............................................49
11. BOM List......................................................53
SAFETY NOTICE
1
AOC LE32A0321 & LE39A0321
Horizontal Frequency
31.5~60 KHz
Page
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Summary of Contents for AOC LE32A0321
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Page 1: Table Of Contents
31.5 & 39 LCD TV AOC LE32A0321 & LE39A0321 Service Service Service Horizontal Frequency 31.5~60 KHz TABLE OF CONTENTS Description Page Description Page Table of Contents..……........…..1 6.1 Main Board…………..……………...…….……..35 Important Safety Notice........……..2 6.2 Power Board………………..…….…….………..36 Revision List…………………………………………………3 6.3 Key Board………………………..……..………..39 1. -
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 E32C21NSCQA1NNX E32C21NSCQA15NX LE32A0321 Mar.01,2013 Initial Release E32C21NSCQE9NNX E32D21NSCQE7NNX LE39A0321 E39C21NSCQA1NNX... -
Page 4: General Specification
1. General Specification Model LE32A0321 LE39A0321 800 mm diagonal 977.9 mm diagonal Panel Size (31.5” viewable) (38.5” viewable) Resolution 1366 x 768 1920 x 1080 NTSC NTSC TV System PAL M/N PAL M/N Speaker 10W x 2 10W x 2... -
Page 5: Operating Instructions
2. Operating Instructions 2.1 The Use of Remote Control... - Page 6 * Multichannel Television Sound (MTS) The broadcasting standard, which allows stereo sounds to be transmitted with the TV picture. ** Second Audio Program (SAP) Another or additional audio channel provided for in the Multichannel Television Sound (MTS) broadcast standard. A monaural sound track included within the recorded or video signal (usually containing a second language translation for the displayed program).
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Page 7: To Use The Menus
2.2 To Use the Menus SWITCHING INPUT SOURCE On AOC TV, you can choose signal source on the remote control directly, or Press “source” to choose the signal source on the display menu. 1. When choosing signal source on the remote control directly: Press the following keys to switch input source. - Page 8 2. When using “Source” key to choose signal source:...
- Page 9 MAIN MENU...
- Page 10 SOUND MENU...
- Page 12 OTHER ADJUSTMENTS...
- Page 14 MEDIA MENU...
- Page 16 CHANNEL MENU...
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Page 17: How To Connect
2.3 How to Connect... -
Page 19: Front Panel Control Knobs
2.4 Front Panel Control Knobs... -
Page 21: Input/Output Specification
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. Red Video Ground V-Sync. - Page 22 3.3 Compatible Mode Table Default computer mode Standard Resolution Vertical Frequency(Hz) 720 × 400 SVGA 800 × 600 1024 × 768 WXGA 1360 × 768* Default computer mode Standard Resolution Vertical Frequency(Hz) 640 × 480 720× 400 SVGA 800 × 600 1024 ×...
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Page 23: Mechanical Instructions
4. Mechanical Instructions LE32A0321 1. Remove the screws to remove the stand, base and rear cover. 2. Remove the tape, pin, IR BOARD and speakers. - Page 24 3. Remove the screws to remove main board, power board and BKT. 4. Remove the screws to remove BKT_HINGE.
- Page 25 5. PANEL...
- Page 26 LE39A0321 1. Remove the screws to remove the stand, base and rear cover. 2. Remove the tape, pin, IR BOARD and speakers.
- Page 27 3. Remove the screws to remove main board, power board and BKT. 4. Remove the screws to remove BKT_HINGE.
- Page 28 5. PANEL...
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Page 29: 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 30 2. Can’t start Can’t start LED red Replace the power board Power board output 24V? 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 31 3. No display No display (LED blue) 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 32 4. 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? Check the cable between the speakers and main board is ok? Replace the cable...
- Page 33 5. 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 34 6. OSD is unstable or can’t work normally OSD is unstable or can’t work normally Key board connected properly? Reconnect the key board Buttons are ok? Replace the button function Replace the key board Key board is ok? Replace the main board...
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Page 35: Pcb Layout
6. PCB Layout 6.1 Main Board... -
Page 36: Power Board
6.2 Power Board 715G5654P03001002H... -
Page 39: Key Board
6.3 Key Board 715G5711K01000004S 6.4 IR Board 715G5471R02000004S... -
Page 40: Adjustment
7. Adjustment Introduction of adjust item: They only need adjust WB(Ypbpr’s Normal/Warm/Cool). Content of WB Adjustment 1. Enter into the factory mode:MENU+1+9+9+9+PRE CH 2. Take an example of adjust Ypbpr_Normal: a. Select item “Source”: Ypbpr and item “Color Temp”: Normal. b. - Page 44 R8213 20R 1% R8205 20R 1% R8204 20R 1% R8203 20R 1% R8202 20R 1% R8201 20R 1%...
- Page 46 R8213 15R 1% R8205 15R 1% R8204 15R 1% R8203 15R 1% R8202 15R 1% R8201 15R 1%...
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Page 53: Bom List
0Q1G 940 12 47 CR3 SCREW 4x12 378G0110567YAN0CKD 16 OHM 11W 132*34 0 NO ECNA1 395G801304LY44 HARNESS 4P-B&R+B&W 700/500 E398 398GRABDFNEACC REMOTE AOC RL76E ENGLISH 705TXC41045 MANUAL ASS'Y Q41G780061532G SHEET-FLYER SA CENTER LIST Q45G2010M0101A pe bag for manual X41G32MV67314A MANUAL LE32A0321/LE39A0321 SA... - Page 54 R203 061G0603221 JF ST CHIPR 220 OHM +-5% 1/10W FENGHUA C201 065G060310432K CAP CHIP 0603 0.1UF K 50V X7R LED201 081G 14 24 EL CHIP LED BLUE/DARK RED U201 356GS927072 IR RECEIVER IRM-H638M3/TR2 38 KHz 709T54710XS001 COMSUPTIVE ASS'Y E715 715G5471R02000004S IR PCB FR4 DS 37X16X1.6MM KEPFCXAE KEY BOARD...
- Page 55 M04403 X44GJA663010FS CUSHION-BL M04403 X44GJA663010SY CUSHION-BL M04404 X44GJA664010FS CUSHION-BR M04404 X44GJA664010SY CUSHION-BR X44GJA6661506A ARTWORK CARTON EPI LE32A0321 MKD Q40G 581689 4B SN LABEL(58x35mm) X40G032061554A RATING LABEL --LE32A0321/30 705TXCSB047 BASE ASS'Y P34T1239ADT01L01BA BASE Q12G6300 25 3 FOOT PAD Q45G88010TV03500HW PROTECT BAG...
- Page 56 L9102 073G 253 91 V CHOKE COIL 3.5uH+-10% L9101 073G 253 91 V CHOKE COIL 3.5uH+-10% L8102 073G 253203 X CHOKE COIL 5uH 15% -- T9301 080GL52P 54 H X'FMR 1000uH 10% 40uH EQ30 BCK-13026-HA CN9901 087G 50147D HC AC SOKET R/A 2P 12DEGREE H=12.8 D9107 093G 60334 SCHOTTKY SR506-44 5A 60V DO-201AD...
- Page 57 R8304 061G08051002FI RST 0805 10K 1% 1/8W R9130 061G08051002FI RST 0805 10K 1% 1/8W R9403 061G08051002FI RST 0805 10K 1% 1/8W R9111 061G08051002FI RST 0805 10K 1% 1/8W R9404 061G08051002FI RST 0805 10K 1% 1/8W R9401 061G08051002FI RST 0805 10K 1% 1/8W R8106 061G08051002FI RST 0805 10K 1% 1/8W...
- Page 58 R9306 061G12061504FT RST CHIP 1M5 1/4W 1% R8204 061G12062009FI RST 1206 20R 1% 1/4W TA-I R8213 061G12062009FI RST 1206 20R 1% 1/4W TA-I R8203 061G12062009FI RST 1206 20R 1% 1/4W TA-I R8201 061G12062009FI RST 1206 20R 1% 1/4W TA-I R8202 061G12062009FI RST 1206 20R 1% 1/4W TA-I R8205...
- Page 59 R8107 061G152M10852T SY RST MOF 0R1 5% 2W R9101 061G152M10852T SY RST MOF 0R1 5% 2W R9310 061G152M12952T SY RST MOF 1R2 5% 2W R9112 061G152M33852T SY RST MOF 0R33 5% 2W R9102 061G152M82352T SY RST MOFR 82KOHM +-5% 2WS FUTABA C9121 065G 1K1019ST CAP CER 100PF 10% 1KV R...
- Page 60 D9302 093G110050152T DIODE PR1007 1A/1000V 500ns DO-41 J922 095G 90 23 JUMP WIRE - - J911 095G 90 23 JUMP WIRE - - J923 095G 90 23 JUMP WIRE - - J909 095G 90 23 JUMP WIRE - - J926 095G 90 23 JUMP WIRE - - J901...
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Page 61: Ir Board
052G 2191 A PAPER TAPE ECN1 095G801313RY04 HARNESS 13P-13P 350mm 0M1G 940 6125 SCREW M1-MACHINE SCREW x6.0 0M1G 940 6125 SCREW M1-MACHINE SCREW x6.0 0M1G1030 6 47 CR3 SCREW 0M1G1030 6 47 CR3 SCREW 0M1G1730 6120 SCREW 3x6 0M1G1730 8120 SCREW 3x8 0M1G1740 10225 CR3 SCREW M1-MACHINE SCREW x10.0... - Page 62 Q05G6054 1 SHEET Q09G6012 1 E715 715G5711K01000004S KEY PCB FR4 DS 12 X 125X1.6MM E715 715G5711K01000004X KEY PCB FR4 DS 12 X 125X1.6MM 2nd source E750 LCM390J1L01AD1010X TPT390-J1L01 C1E XM TPV E750 LCM390J1L02AD1010X PANEL TPT390J1-HJ1L02 C1D XM TPV P12G6311010 RUBBER PAD SILICONE P33T0408ADT01L0200 DECO_KEY P34T1188ADT01L01BD...
- Page 63 D9802 093G 52905 DIODE FMNS-1106S TO-220 0M1G1730 8120 SCREW 3x8 HS9801 Q90G6241 1 HEAT SINK 705TXC84040 F9901 Assy EF9901 084G 34 10 FUSE CLIP EF9901 084G 34 14 FUSE -- -- -- F9901 084G 41 3 C FUSE 3.15A 250V, Time Lag Fuse 705TXC93969 BD9901 Assy HS9901...
- Page 64 R9129 061G08052261FY RST 0805 2.26K 1% 1/8W RC0805FR-07 2K26L R9127 061G08052402FI RST CHIPR 24 KOHM +-1% 1/8W R8101 061G0805303 JI RST CHIPR 30 KOHM +-5% 1/8W R8102 061G0805304 JI RST CHIPR 300K OHM +-5% 1/8W R8305 061G0805304 JI RST CHIPR 300K OHM +-5% 1/8W R9109 061G0805330 JF RST CHIPR 33 OHM +-5% 1/8W FENGHUA...
- Page 65 R9402 061G12063300FT RST 1206 330R 1% 1/4W R9315 061G12064700FI RST 1206 470R 1% 1/4W TA-I R8109 061G12064700FI RST 1206 470R 1% 1/4W TA-I R9110 061G12064700FI RST 1206 470R 1% 1/4W TA-I R9805 061G12064700FI RST 1206 470R 1% 1/4W TA-I R9312 061G1206479 JT RST 1206 4.7R 5% 1/4W R9902...
- Page 66 C9121 065G 1K1019ST CAP CER 100PF 10% 1KV R C9114 065G 1K10293T CAP CER 1NF 10% 1KV R C9301 065G 1K1029ST CAP CER 1NF 10% 1KV R C9101 065G 1K22293S CAP CER 2.2NF 10% 1KV R TAPING C9307 065G 1K4719ST CAP CER 470PF 10% 1KV R C9113 065G 1K4719ST...
- Page 67 J921 095G 90 23 JUMP WIRE - - J924 095G 90 23 JUMP WIRE - - J922 095G 90 23 JUMP WIRE - - J929 095G 90 23 JUMP WIRE - - J926 095G 90 23 JUMP WIRE - - J923 095G 90 23 JUMP WIRE - -...
- Page 68 BATTERY 1.5V LR03 AAA£¨LR03£© alkali E398 098GRABD6NEACD REMOTE AOC 90-364100T4425 0M1G1740 10225 CR3 SCREW M1-MACHINE SCREW x10.0 E398 398GRABDFNEACC REMOTE AOC RL76E ENGLISH P34T1238ADT01L0100 COVER_HINGE Q41G780061532G SHEET-FLYER SA CENTER LIST Q45G2010M0101A pe bag for manual Q45T 76 28NV2 PE BAG FOR BASE SCREW sz02742...