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AOC LM565 Service Manual

15" lcd monitor
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AOC LM565

SERVICE MANUAL

15" LCD MONITOR
LM565
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION 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 FOR
CHANGES, ERRORS OR OMISSIONS.
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Summary of Contents for AOC LM565

  • Page 1: Service Manual

    AOC LM565 SERVICE MANUAL 15” LCD MONITOR LM565 THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION 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 FOR...

  • Page 2: Table Of Contents

    AOC LM565 Table of Content Revision List…………………………………………………………………………………………………………. 1. Monitor Specifications………………………………………………………………………………………….. 2. LCD Monitor Description……………………………………………………………………………………….. 3. Operating Instructions………………………………………………………………………………………….. 3.1 General Instructions…………………………………………………………………………………………... 3.2 Front Panel Control…………………………………………………………………………………….……... 3.3 Adjusting the Picture………………………………………………………………………………………….. 4. Input/Output Specification……………………………………………………………………………………... 4.1 Input Signal Connector……………………………………………………………………………………….. 4.2 Power Supply Requirements………………………………………………………………………………… 4.3 Factory Preset Display Modes………………………………………………………………………………..

  • Page 3: Revision List

    AOC LM565 Revision List Version Date Revision History TPV Model Name Jan-12-06 Initial Release T560KV4DB4AOA Add T560KH4DB4AOAPE Jul-18-2006 T560KH4DB4AOAPE in Item 12...

  • Page 4: Monitor Specifications

    AOC LM565 1. Monitor Specifications Items Description Driving system TFT Color LCD Type SVA150XG04TB Size 38cm (15.0") LCD Panel Pixel pitch 0.297mm (H) x 0.297mm (V) Viewable angle 120(H) 100(V) Response time 16 ms Sync. Type H/V TTL Input Signal...

  • Page 5: Lcd Monitor Description

    AOC LM565 2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board, a keypad board and an audio board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

  • Page 6: Operating Instructions

    AOC LM565 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.

  • Page 7: Adjusting The Picture

    AOC LM565 3.3 Adjusting The Picture The Description For Control Function: Main Main Menu Sub Menu Sub Menu Adjust Menu Description Reset Value Item Item Icon Range Icon Recall Cool Contrast Contrast from Digital-register. 0-100 Contrast Value Luminance Recall Cool...
  • Page 8 AOC LM565 Adjust the horizontal position of the H. Position 0-100 OSD. Adjust the vertical position of the OSD Setup V. Position 0-100 OSD. Adjust the OSD timeout. 10-120 Timeout Set OSD display language to English English. Set OSD display language to Deutsch German.

  • Page 9: Input/Output Specification

    AOC LM565 4. Input/Output Specification 4.1 Input Signal Connector Pin No. Description Pin No. Description Green Logic Ground Blue RS-232RX RS232-TX DDC-Serial Data Ground H-Sync R-Ground V-Sync G-Ground DDC-Serial Clock B-Ground VGA connector layout 4.2 Power Supply Requirement A/C Line voltage range : 100 V ~ 240 V : 50 ±...

  • Page 10: Factory Preset Display Modes

    AOC LM565 4.3 Factory Preset Display Modes VESA MODES Horizontal Vertical Nominal Sync Nominal Sync Nominal Frequency Polarity Freq. Polarity Pixel Mode Resolution Total +/- 0.5kHz +/- 1 Hz Clock (MHz) 640x480@60Hz 800 x 525 31.469 59.940 25.175 640x480@72Hz 832 x 520 37.861...

  • Page 11: Panel Specification

    AOC LM565 4.4 Panel Specification 4.4.1 Panel Feature • a-Si TFT active matrix • LVDS interface (8 bit) • Selectable LVDS input map • Wide viewing angle • high response time : 16ms • PSWG standard • High contrast: 450:1 •...

  • Page 12: Optical Characteristics

    AOC LM565 4.4.3 Optical Characteristics...

  • Page 13: Electrical Characteristics

    AOC LM565 4.4.4 Electrical Characteristics 1. Driving for LCD panel signal processing board 2. Driving for backlight lamp...

  • Page 14: Block Diagram

    AOC LM565 5. Block Diagram 5.1 Monitor Exploded View...

  • Page 15: Software Flow Chart

    AOC LM565 5.2 Software Flowing Chart...
  • Page 16 AOC LM565 REMARK: 1) MCU initialize. 2) Is the EEprom blank? 3) Program the EEprom by default values. 4) Get the PWM value of brightness from EEprom. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode.

  • Page 17: Electrical Block Diagram

    AOC LM565 5.3 Electrical Block Diagram 5.3.1 Main Board LCD Interface (CN503) Scalar IC TSU13AK W78E65 (Include ADC, OSD) (U601) (U401) EPR_SDA EPR_SCL H sync V sync EEPROM Key Board 24LC16B Control (U602) Crystal D-Sub 14.318MHZ Connector (X401) (CN301) DB15_SDA,...

  • Page 18: Inverter/Power Board

    AOC LM565 5.3.2 Inverter/Power Board AC input Bridge Rectifier Transformer Rectifier CMOS EMI filter and Filter Start Circuit R906, R907 CN102 Feedback Over Voltage Circuit Protect Control IC ON/OFF OSC and MOSFET DC Convert Output Q203/Q204 Circuit Circuit Lamp Feedback...

  • Page 19: Schematic

    AOC LM565 6. Schematic 6.1 Main Board 715L1237-1-3 TSU13AK SCHEMATIC GNDR GNDR GNDG GNDG DDC_CLK VCC2.5 VCC3.3 VAA1 VAA2 VAA3 VAA4 DDC_DAT GNDB GNDB ST_DET1 HSYNC HSYNC ST_DET2 VSYNC VSYNC VCC2.5 VCC3.3 VAA1 VAA2 VAA3 CLK+ CLK+ VAA4 CLK- CLK- 3.INPUT...
  • Page 20 AOC LM565 VCC5V+ VCC5V SOT-252 D202 U201 VCC12V R202 GS1D VCC2.5 VCC12V RT9164 CN201 10K 1/16W 　 VCC2.5 ON_OFF R201 4.7K 1/16W 　 C210 C211 C212 VCC12V VCC12V D201 SS14 C201 R212 4.7K 1/16W 　 0.1uF 47uF/16V 0.1uF VCC5V+ VCC5V...
  • Page 21 AOC LM565 CN301 DB15 FB301 　 1/16W R301 　 1/16W C304 0.047uF FB302 　 1/16W R302 　 1/16W C305 0.047uF FB303 　 1/16W R303 　 1/16W C306 0.047uF R304 　 1/16W C307 0.001uF PC5V R325 C301 C302 C303 VGA_CON 　...
  • Page 22 AOC LM565 VCC3.3 FB401 VCC2.5 FB402 VCC3.3 VCC2.5 600 OHM 600 OHM C405 C414 10uF/16V 10uF/16V VPLL VDVI VDPLL C406 C407 C408 C409 C410 C411 C412 C413 C415 C416 C417 C418 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF...
  • Page 23 AOC LM565 PA[0..9] PA[0..9] LVA3P CN503 LVA3M LVACKP LVACKM LVB0M RXO0- RXO0+ LVB0P LVA2P LVB1M RXO1- RXO1+ LVB1P LVA2M LVB2M RXO2- RXO2+ LVB2P LVBCKM RXOC- RXOC+ LVBCKP LVA1P RXO3- RXO3+ LVB3M LVB3P LVA1M LVA0M RXE0- RXE0+ LVA0P LVA1M RXE1- RXE1+...
  • Page 24 AOC LM565 VCPU VCPU RN601 R601 R602 C601 RN602 　 1/16W 　 1/16W 1/16W 0.1uF 　 　 1/16W C602 22pF U601 X601 POWER EA/VP P0.0 ENTER P0.1 RIGHT XTAL1 P0.2 C603 20MHz LEFT P0.3 10uF/16V VCPU AUTO P0.4 LED_B U603...

  • Page 25: Power Board

    AOC LM565 6.2 Power Board 715L1034-3...
  • Page 26 AOC LM565...

  • Page 27: Audio Board

    AOC LM565 6.3 Audio Board 715L1144-1-IO OUT_L OUT_R +12V PIN-3 CN202 WAFER 2*7P 2.54mm MUTE PIN-1 VOLUME C202 C201 C203 470uF/16V 470uF/16V 0.1uF PIN-1 U201 TDA7496L CN204 C205 CN203 C204 0.47uF R201 10K　 OUTL 470uF/16V C206 0.47uF OUTR R203 10K　...

  • Page 28: Pcb Layout

    AOC LM565 7. PCB Layout 7.1 Main Board 715L1237-1-3...

  • Page 29: Power Board

    AOC LM565 7.2 Power Board 715L1034-3...

  • Page 30: Audio Board

    AOC LM565 7.3 Audio Board 715L1144-1-IO 7.4 Key Board 715L1496-2...

  • Page 31: Maintainability

    AOC LM565 8. Maintainability 8.1 Equipments And Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.

  • Page 32: Trouble Shooting

    AOC LM565 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 Reinsert or check the Adapter/Inverter section Measure U201 PIN2=2.5V U202 PIN2=3.3V...
  • Page 33 AOC LM565 No picture (LED orange) No picture The button if X601 oscillate Replace X601 under control waveform is normal Check reset circuit of Check Correspondent component U601 is normal Measure U201 PIN2=2.5V U202 PIN2=3.3V Replace U601 Replace U201, U202...
  • Page 34 AOC LM565 White screen White screen Measure Q204 base X601 oscillate waveform is normal is low level? Replace X601 Check Q204 is broken or Check reset circuit of CN503 solder? U601 is normal Check Correspondent Check Correspondent component. component. Replace PANEL...

  • Page 35: Power/Inverter Board

    AOC LM565 8.2.2 Power/Inverter Board 1) No power Check CN102 pin12 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901...
  • Page 36 AOC LM565 2.) W / LED, No Backlight Check C201 (+) =12V Check adapter Check ON/OFF signal Check Interface board or main board Check U201 pin9=12V Change Q201 or Q202 Check U201 PIN10, 7 have the output of sawtooth wave at short time Change U201 Check D201 (-) has the output of square wave at short time.

  • Page 37: Keypad Board

    AOC LM565 8.2.3 Keypad Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Replace Key Pad Board Is Key Pad Board normally? Check Main Board...

  • Page 38: White-Balance, Luminance Adjustment

    6500 color temp. parameter is x = 313±20, y = 329 ±20, Y =180 cd/m 3. Into factory mode of AOC LM565 Turn on power, press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.

  • Page 39: Edid Content

    AOC LM565 10. EDID Content 112:...

  • Page 40: Bom List

    AOC LM565 11. BOM List T560KV4DB4AOA Location Part No. for TPV Description AUPC780A9 AUDIO BOARD CBPC560KV4AE CONVERSION BOARD KEPC560KEA KEY BOARD PWPC5215A1E21 POWER BOARD 15G5908 3 BRACKET 15G6203 S 1 PANEL-BKT 15G6203 S 2 PANEL-BKT 26G 800504 7 BARCODE 40G 15N61511A...
  • Page 41 AOC LM565 M1G1730 6128 SCREW M3x6 Q1G 330 6120 SCREW 705L560KB34126 BACK COVER ASS'Y 705L562KF34016 15" LCD ASS'Y 705L562KP34009 15" LCD ASS'Y AM1G1740 10 47 SCREW E089B 89G 715GAA D SIGNAL CABLE E095 S95G801820544 LVDS HARNESS E750L 750LLD504TB SVA 15" PANEL...
  • Page 42 AOC LM565 R207 61L0603102 RST SM 0603 RC0603 1K P R208 61L0603102 RST SM 0603 RC0603 1K P R210 61L0603203 CHIPR 20K OHM+-5% 1/10W R211 61L0603203 CHIPR 20K OHM+-5% 1/10W 715L1144 1 IO AUDIO BOARD R212 61G 60220152T CFR 200 OHM +-5% 1/6W...
  • Page 43 AOC LM565 C401 65G0603104 32 CHIP 0.1UF 50V X7R C402 65G0603220 31 CER1 0603 NP0 50V 22P P C403 65G0603220 31 CER1 0603 NP0 50V 22P P C404 65G0603104 32 CHIP 0.1UF 50V X7R C406 65G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 44 AOC LM565 D301 93G 6433P BAV99 SOT-23 D302 93G 6433P BAV99 SOT-23 D303 93G 6433P BAV99 SOT-23 D304 93G 64 42 P BAV70 SOT-23 D601 93G 6432V LL4148-GS08 FB201 71G 56Z601 CHIP BEAD 600 OHM 0805 FB301 61L0603000 RST SM 0603 JUMP MAX 0R...
  • Page 45 AOC LM565 R304 61L0603471 CHIPR 470 OHM+-5% 1/10W R305 61L0603101 RST SM 0603 RC0603 100R R306 61L0603101 RST SM 0603 RC0603 100R R307 61L0603101 RST SM 0603 RC0603 100R R308 61L0603103 RST SM 0603 RC0603 10K R309 61L0603101 RST SM 0603 RC0603 100R...
  • Page 46 AOC LM565 R620 61L0603471 CHIPR 470 OHM+-5% 1/10W R621 61L0603471 CHIPR 470 OHM+-5% 1/10W R622 61L0603471 CHIPR 470 OHM+-5% 1/10W R623 61L0603471 CHIPR 470 OHM+-5% 1/10W R624 61L0603102 RST SM 0603 RC0603 1K P R625 61L0603103 RST SM 0603 RC0603 10K...
  • Page 47 AOC LM565 C901 65G305M1022BP Y2 1000PF M 250VAC Y5P C902 65G305M1022BP Y2 1000PF M 250VAC Y5P C904 63G 107474 HS 0.47UF +-20% 275VAC C905 67G305S10114H 100UF +-20% 400V C906 65G 2K152 5E6921 1500 PF 10% 2KV Y5P C913 65G306M4722BP 4700PF +-20% 400VAC...
  • Page 48 AOC LM565 C927 65G0603104 37 CHIP 0.1UF 50V/Y5V C928 65G0603104 37 CHIP 0.1UF 50V/Y5V D201 93G2004 3 SSM24PT D203 93G 39S 3 T BZT52-C11 Q201 57G 760 5 DTC144WKA BY ROHM SMT Q202 57G 760 4 DTA144WKA BY ROHM SMT...
  • Page 49 AOC LM565 R929 61L0603000 RST SM 0603 JUMP MAX 0R R931 61L0603102 RST SM 0603 RC0603 1K P U201 56G 608 1 TL1451ACD ZD901 93G 39S 23 T GLZ22B ZD904 93G 39S 19 T PTZ7.5B 715L1034 3 PCB VER:C C201...
  • Page 50 AOC LM565 R930 61G 17210152T 100 OHM 5% 1/4W T901 6G 31502 1.5MM RIVET 95G205S354022 HARNESS 96G 29 6 SHRINK 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*...

  • Page 51: Different Parts List

    AOC LM565 12. Different Parts List Diversity of T560KH4DB4AOAPE compared with T560KV4DB4AOA Location Part No. for TPV Description AUPC780A9P AUDIO BOARD CBPC560KH4DBP CONVERSION BOARD KEPC560KH9BP KEY BOARD PWPC5215A1E26C POWER BOARD S95G801820516 LVDS ASS'Y 15G6203 C 1 PANEL-BKT 15G6203 C 2...
  • Page 52 AOC LM565 C610 65G0603104 12 0.1UF +-10% 16V X7R C510 65G0603104 32 CHIP 0.1UF 50V X7R AIK560KE9P KEY BOARD CN003 33G3802 2 WAFER 2.0MM 2P CN004 33G3802 2 WAFER 2.0MM 2P CN001 33G801712A BH PIN HEADER 2*7 R/A SW001 77G 600 1GHJ...

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