AOC LM565 Service Manual Download Page 32 | Manualshive

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AOC LM565 Service Manual Download Page 32

AOC LM565

32

8.2 Trouble Shooting

8.2.1 Main Board

No power

No power

Press power key and look

if the picture is normal

Please reinsert and make sure

the AC of 100-240 is normal

Measure U201 PIN2=2.5V

Reinsert or check the
Adapter/Inverter
section

X601 and X401 oscillate

waveforms are normal

Check CN201 or replace
U201, U202

Replace X601, X401

http://www.wjel.net

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Summary of Contents for LM565

Page 1: ...ORMATION ONLY EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY...

Page 2: ...s 12 4 4 4 Electrical Characteristics 13 5 Block Diagram 14 5 1 Monitor Explored View 14 5 2 Software Flow Chart 15 5 3 Electrical Block Diagram 17 5 3 1 Main Board 17 5 3 2 Inverter Power Board 18 6...

Page 3: ...LM565 3 Revision List Version Date Revision History TPV Model Name A00 Jan 12 06 Initial Release T560KV4DB4AOA A01 Jul 18 2006 Add T560KH4DB4AOAPE in Item 12 T560KH4DB4AOAPE h t t p w w w w j e l n e...

Page 4: ...ency 30kHz 60kHz Input V Frequency 55 75Hz ON Mode 25W Power Consumption OFF Mode 2W Display Color 16 777 216 colors 6bit FRC Contrast Ratio 450 1 Dot Clock 80MHz White Luminance 250cd m2 Max Resoluti...

Page 5: ...DC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage Video signal DDC CCFT Drive PWPC Board Include Adapter and Inverter Flat...

Page 6: ...and the LED turns blank Press again to restore normal status Left Right Button The Left Right Button is used to control the monitor functions Press to switch functions or adjust settings Auto Adjust K...

Page 7: ...rizontal position of the picture 0 100 Do Auto Config Image Position V Position Adjust the vertical position of the picture 0 100 Do Auto Config C1 N A Recall warm Color Temperature from EEPROM N A C2...

Page 8: ...ch N A Espa ol N A Set OSD display language to Spain N A Italiano N A Set OSD display language to Italian N A Language N A Set OSD display language to simplified Chinese N A The Language will be set t...

Page 9: ...B Ground VGA connector layout 1 5 6 10 11 15 4 2 Power Supply Requirement A C Line voltage range 100 V 240 V A C Line frequency range 50 3Hz 60 3Hz Input Current 0 6A max at 100V 0 35A max at 240 V 0...

Page 10: ...800x600 75Hz 1056x625 46 875 P 75 000 P 49 500 1024x768 60Hz 1344x806 48 363 N 60 004 N 65 000 1024x768 70Hz 1328x806 56 476 N 70 069 N 75 000 XGA 1024x768 75Hz 1312x800 60 023 P 75 029 P 78 750 IBM...

Page 11: ...active matrix LVDS interface 8 bit Selectable LVDS input map Wide viewing angle high response time 16ms PSWG standard High contrast 450 1 Edge light type backlight Inverter less Replaceable lamp for b...

Page 12: ...AOC LM565 12 4 4 3 Optical Characteristics h t t p w w w w j e l n e t...

Page 13: ...AOC LM565 13 4 4 4 Electrical Characteristics 1 Driving for LCD panel signal processing board 2 Driving for backlight lamp h t t p w w w w j e l n e t...

Page 14: ...AOC LM565 14 5 Block Diagram 5 1 Monitor Exploded View h t t p w w w w j e l n e t...

Page 15: ...AOC LM565 15 5 2 Software Flowing Chart 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 h t t p w w w w j e l n e t...

Page 16: ...green color Scalar initialize 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are they re any signals coming 13 Does the scalar send out an interrupt request 14 Wake...

Page 17: ...MCU W78E65 U601 Scalar IC TSU13AK Include ADC OSD U401 EEPROM 24LC16B U602 EEPROM M24C02 U301 H sync V sync RGB DB15_SDA DB15_SCL EPR_SDA EPR_SCL LCD Interface CN503 Key Board Control D Sub Connector...

Page 18: ...cuit R906 R907 PWM Control IC Over Voltage Protect AC input 5V 12V PWM Control IC Feedback Circuit OSC and Output Circuit DC Convert Circuit MOSFET Q203 Q204 Over Voltage Protect Lamp ON OFF ON OFF Co...

Page 19: ...V VCC12V VCPU TSU13AK for AOC VCC2 5 VAA1 VCPU B3 6 MCU onBACKLITE ST_DET2 onPANEL_5V 3 3V SDA INT CSZ DDC_DAT ST_DET1 SCL HWRESET DDC_CLK Volume VCC5V VCC12V VCPU RXD TXD AD0 AD1 AD2 AD3 VAA4 VCC3 3...

Page 20: ...A4 VCC12V VAA1 4 SOT 252 C B E U202 AIC1084 33M 3 1 2 VIN ADJ VOUT VLCD 5 C208 100uF 16V R203 1K 1 16W C204 220uF 25V VLCD C206 1uF 25V GND R210 NC R205 4 7K 1 16W Q203 AO3401 VCC12V VCC5V VCC5V GND C...

Page 21: ...F DVI5V D320 TZMC5V6 GS08 D312 BAV99 3 1 2 B 4 R326 75 1 16W TSU13AK for AOC GIN 4 CN301 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 D302 BAV99 3 1 2 ST_DET1 6 R327 75 1 16W D316 LL5232B 5 6V 5 CLK 4 R31...

Page 22: ...49 50 52 66 67 69 70 71 32 72 73 74 107 55 35 45 3 51 11 21 84 94 104 114 126 18 87 97 117 39 56 36 2 54 42 10 20 85 95 115 127 19 86 96 105 116 33 34 108 109 110 111 112 113 118 119 120 121 122 123...

Page 23: ...0 9 TSU13AK for AOC LVACKM RXE1 RXEC LVA3M R502 0 1 16W PA5 PB9 PA 0 9 4 LVB2M PB8 LVA1M LVA2P PB3 LVB1M C509 47uF 16V LVB1M PB4 LVA0P LVB3P LVB0M RXE2 PB5 PA2 LVA1P LVBCKP LVA1M PB7 LVB2P LVA0M RXO0...

Page 24: ...L1 XTAL2 RESET INT0 P3 2 INT1 P3 3 T0 P3 4 T1 P3 5 P1 0 P1 1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 P0 0 P0 1 P0 2 P0 3 P0 4 P0 5 P0 6 P0 7 P2 0 P2 1 P2 2 P2 3 P2 4 P2 5 P2 6 P2 7 P3 7 RD P3 6 WR PSEN ALE P P3...

Page 25: ...AOC LM565 25 6 2 Power Board 715L1034 3 h t t p w w w w j e l n e t...

Page 26: ...AOC LM565 26 h t t p w w w w j e l n e t...

Page 27: ...1 0uF C203 0 1uF GND C207 470uF 16V R201 10K R208 1K 12V R211 5 6K 12V R212 220K R203 10K C211 100 pF CN203 WAFER 4P2 0 R A 1 2 3 4 U201 TDA7496L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GN...

Page 28: ...AOC LM565 28 7 PCB Layout 7 1 Main Board 715L1237 1 3 h t t p w w w w j e l n e t...

Page 29: ...AOC LM565 29 7 2 Power Board 715L1034 3 h t t p w w w w j e l n e t...

Page 30: ...AOC LM565 30 7 3 Audio Board 715L1144 1 IO 7 4 Key Board 715L1496 2 h t t p w w w w j e l n e t...

Page 31: ...ity 8 1 Equipments And Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual...

Page 32: ...Please reinsert and make sure the AC of 100 240 is normal Measure U201 PIN2 2 5V U202 PIN2 3 3V Reinsert or check the Adapter Inverter section X601 and X401 oscillate waveforms are normal Check CN201...

Page 33: ...X601 Measure U201 PIN2 2 5V U202 PIN2 3 3V Check Correspondent component Replace U401 X401 oscillate waveform is normal Replace U201 U202 OK OK OK OK OK NG NG NG NG Check reset circuit of U601 is norm...

Page 34: ...evel X601 oscillate waveform is normal Check Q204 is broken or CN503 solder Check Correspondent component Replace PANEL Check Correspondent component Replace U601 OK OK OK Replace X601 OK NG NG NG NG...

Page 35: ...dge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901 Check R906 R907 and Change IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V 1 Check IC901 2...

Page 36: ...K Change Q201 or Q202 Check U201 PIN10 7 have the output of sawtooth wave at short time NG OK Change U201 Check D201 has the output of square wave at short time NG OK Check Q205 Q207 Q203 Check the re...

Page 37: ...s unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board normally Replace Key Pad Board Y N Y Check M...

Page 38: ...hannel 3 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 296 20 y 311 20 Y 180 cd m2 4 Adjust the RED of color1 on factory window until chroma 7120 indicator reache...

Page 39: ...8F 3D A4 58 4D 90 24 32 15 4F 51 BF EE 00 01 01 01 01 01 01 01 01 01 01 48 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 64 36 00 30 E4 10 00 00 18 00 00 00 FF 00 31 32 33 80 35 34 36 37 39 38 30 3...

Page 40: ...1597A QSG 44G3582 1 EPS L 44G3582 2 EPS R 44G3582615 1A CARTON 45G 76 28 RN PE BAG FO MANUAL BASE 45G 76 34 5 PE BAG FOR BASE 45G 88607 PE BAG FOR MONITOR 45G 88609 EPE COVER 50G 600 2 HANDLE1 50G 600...

Page 41: ...0128 TAP 4X8 FOR SP T34G6200 U0 B BASE M037 37G6033 1 HINGE 12G 394 3 RUBBER FOOT 33F 206 14 DF11 14DS 2C 33F206T 24 DF11 2428SCF 33F303SM24H20 P240420 33F303STM24T2 2404PS 2 AUPC780A9SMT AUDIO BOARD...

Page 42: ...24 1B LABEL CPU 715L1237 1 3 MAIN BOARD C201 65G0603104 32 CHIP 0 1UF 50V X7R C203 65G0603104 32 CHIP 0 1UF 50V X7R C205 65G0603104 32 CHIP 0 1UF 50V X7R C206 65G0805105 22 CHIP 1UF 25V X7R 0805 C207...

Page 43: ...21 65G0603104 32 CHIP 0 1UF 50V X7R C423 65G0603104 32 CHIP 0 1UF 50V X7R C425 65G0603104 32 CHIP 0 1UF 50V X7R C426 65G0603104 32 CHIP 0 1UF 50V X7R C428 65G0603104 32 CHIP 0 1UF 50V X7R C510 61L0603...

Page 44: ...6Z601 CHIP BEAD 600 OHM 0805 Q201 57G 417 4 PMBS3904 PHILIPS SMT 04 Q202 57G 417 4 PMBS3904 PHILIPS SMT 04 Q203 57G 763 1 A03401 SOT23 BY AOS A1 Q204 57G 417 4 PMBS3904 PHILIPS SMT 04 Q601 57G 417 6 P...

Page 45: ...SM 0603 RC22H 75R P R402 61L0603101 RST SM 0603 RC0603 100R R403 61L0603390 0F CHIP 390 OHM 1 10W 1 R404 61L0603103 RST SM 0603 RC0603 10K R405 61L0603103 RST SM 0603 RC0603 10K R406 61L0603103 RST S...

Page 46: ...63 31 AI1117D 1 8 EI U202 56G 563 7 AIC1084 33PM U301 56G1133 34 M24C02 WMN6TP U401 56G 562 88 TSU13AK LF U601 56L1125137EAH W78E65 BY WINBOND U602 56G113356A 24LC16B SNG SOIC 8PIN U603 56G 643 9 EM63...

Page 47: ...379 32 SG6841DZ DIP 8 IC902 56G 139 3A PC123Y22FZOF L201 73G 253139 HA CHOKE COIL L903 73G 253 91 L CHOKE BY LI TA L904 73G 253 91 L CHOKE BY LI TA NR901 61G 58080 WT 8 OHM NCT P051 51G 6 4500 RTV Q20...

Page 48: ...1 5K OHM 5 1 4W R226 61L1206152 CHIPR 1 5K OHM 5 1 4W R227 61L1206152 CHIPR 1 5K OHM 5 1 4W R232 61L1206102 CHIP 1K OHM 5 1 4W R234 61L0603911 CHIP 910 OHM 1 10W R236 61L0603621 CHIPR 620 OHM 5 1 10W...

Page 49: ...470UF 16V LTR471M1CF11V C936 64G700J1040AT 0 1UF 50V PEN D205 93G 64 1152T 1N4148 D207 93G 64 1152T 1N4148 D209 93G 64 1152T 1N4148 D901 93G 6026W52T FR107 D902 93G 6038T52T FR103 D903 93G 64 1152T 1...

Page 50: ...NK TUBE UL CSA CN901 87G 501 12 CJ AC SOCKET 2F0605100 SCREW NUTS M6 0 P1 0 4F0612051 00 WASHER 4F061210M 00 METAL WASHERS12 0 6 03 4F061210T 00 METAL WASHERS12 0 8 00 4F061210T 01 METAL WASHERS12 0 4...

Page 51: ...ARTON AUPC780A9SMTP AUDIO BOARD AUPC780A9AIP AUDIO BOARD J201 95G 90 23 TINCOATEDCOPPER J202 95G 90 23 TINCOATEDCOPPER J203 95G 90 23 TINCOATEDCOPPER J204 95G 90 23 TINCOATEDCOPPER C201 67G 305471 3T...

Page 52: ...WITCH DP101 81G 12 1 GP LED L902 S73L17426VG COMMON CHOKE PT201 S80LL15T7VG TRANSFORMER C215 65G 3J2706ET 27PF 5 3KV TDK C227 65G 3J2706ET 27PF 5 3KV TDK C922 67G215V102 3R LOW E S R 1000UF 20 C925 67...

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