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AOC e2040v, Service Manual

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AOC e2040v Service Manual Download Page 36

20" LCD Color Monitor                                         AOC e2040V

 

36 

9.2 Trouble Shooting 
1. No Power 

OK 

NG 

No power

 

Check power cable is 

tightened? 

Check Power “On/Off” 

is “On”? 

Re-plug the power cable 

Replace main board and check connections 

Check the LED 
indicate is OK? 

Check the AC power   

Replace the converter board 

OK 

NG 

OK 

NG 

NG 

Turn on the Power “On/Off” switch 

Replace key board and check connections 

NG 

Summary of Contents for e2040v

Page 1: ...stics 10 5 2 Optical Characteristics 10 5 3 Parameter guide line for CCFL Inverter 10 6 Block Diagram 11 Table Of Contents 1 Revision List 2 1 Monitor Specification 4 2 LCD Monitor Description 6 3 Ope...

Page 2: ...racteristics might create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or i...

Page 3: ...vision History Remark A00 Jul 27 2010 Initial release TPV TPM200O1 L02 LGD LM200WD3 TLA1 TAA2NRNQWWA1HNE TAA2NRNDWWA4HNE TAAGNR2DWWA4HNE TAAGNR2EWWA1HNE TAA2NRNEWWA1HNE A01 Jan 17 2011 Add new models...

Page 4: ...20 LCD Color Monitor AOC e2040V 4 1 Monitor Specification...

Page 5: ...20 LCD Color Monitor AOC e2040V 5...

Page 6: ...ontrol logic brightness control logic and DDC The power part will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage AC IN 100V 240V Monitor Block...

Page 7: ...d to do auto configure Only for the models with dual or more inputs 3 3 Adjusting the Picture OSD Setting 1 Press the MENU button to activate the OSD window 2 Press or to navigate through the function...

Page 8: ...20 LCD Color Monitor AOC e2040V 8 adjust 3 One of DCR Color Boost and Picture Boost functions is active the other two function is turned off accordingly Luminance Image Setup...

Page 9: ...20 LCD Color Monitor AOC e2040V 9 Color Temperature Color Boost Picture Boost OSD Setup...

Page 10: ...20 LCD Color Monitor AOC e2040V 10 Extra Reset Exit LED Indicator...

Page 11: ...20 LCD Color Monitor AOC e2040V 11 4 Input Output Specification 4 1 Input Signal Connector 4 1 1 D SUB connector 4 1 2 DVI connector...

Page 12: ...20 LCD Color Monitor AOC e2040V 12 4 2 Factory Preset Display Modes...

Page 13: ...with HD resolution 900 vertical by 1600 horizontal pixel array Each pixel is divided into Red Green and Blue sub pixels or dots which are arranged in vertical stripes Gray scale or the brightness of...

Page 14: ...20 LCD Color Monitor AOC e2040V 14 5 2 Optical Characteristics TPV TPM200O1 L02...

Page 15: ...20 LCD Color Monitor AOC e2040V 15 LGD LM200WD3 TLA1 Ta 25 C VLCD 5 0V fV 60Hz fCLK 48 9MHz...

Page 16: ...Monitor AOC e2040V 16 5 3 Electrical Characteristics 1 TFT LCD Module TPV TPM200O1 L02 Ta 25 2 C LGD LM200WD3 TLA1 Note The specified current and power consumption are under the VLCD 5 0V 25 2 C f 60...

Page 17: ...PLED Ipin 8channel VLED 2 LED matrix is 8S8P The 2 light bars used by backlight unit Note 2 The lifetime of LED is defined as the time when it continues to operate under the conditions at Ta 25 2 and...

Page 18: ...20 LCD Color Monitor AOC e2040V 18 6 Block Diagram 6 1 Software Flow 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...

Page 19: ...on the LED and set it to 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 i...

Page 20: ...EMORY Pm25LD020C SCE U402 Scalar NT68668AFG Include MCU ADC OSD etc U401 LCD Interface CN301 D Sub Connector CN101 H sync V sync RGB EEPROM M24C02 U101 DDC1_SCL DDC1_SDA Crystal 12MHZ X401 DVI Connect...

Page 21: ...Start Resistor R934 R906 PWM Control LD7750GS IC901 Transformer T901 AC input 12V 3A Bridge Rectifier and Filter Rectifier diodes Power Switch Q901 Photo coupler IC902 Regulator IC903 ZD801 PWM Contr...

Page 22: ...AOZ8105CI I O1 1 GND 2 I O2 3 I O3 4 VDD 5 I O4 6 DDC1_SCL 5 DDC1_SDA 5 DDC1_SDA VGA_B U105 AOZ8105CI I O1 1 GND 2 I O2 3 I O3 4 VDD 5 I O4 6 DDC_WP 5 U107 AOZ8105CI I O1 1 GND 2 I O2 3 I O3 4 VDD 5...

Page 23: ...V 11 30 2009 R308 NC 10K1 16W CN301 CONN 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 PANEL_VCC Q302 LMBT3904LT1G R304 22K 1 16W R305 10K 5 1 16W CMVCC1 C302...

Page 24: ...SW 1 EN 2 COMP 3 FB 4 GND 5 FREQ 6 VIN 7 BST 8 Thermal Pad 9 VCC3 3 11 30 2009 U701 VI 3 VO 2 GND 1 C723 10uF 25V C712 100nF 25V C719 100nF 25V CMVCC1 CN702 CONN 1 2 3 4 5 6 7 8 9 10 11 12 D707 SR34 1...

Page 25: ...C0805 VCC1 8 4 119 ADC_VAA FB401 0R05OHM1 8W 115 52 adj_BACKLIGHT CMVCC1 DSUB_R 2 DSUB_G 2 DSUB_G 2 DSUB_B 2 DSUB_SOG 2 DSUB_V 2 DSUB_B 2 DSUB_H 2 LED_GRN BLUE DDC1_SDA 2 LED_ORANGE DDC1_SCL 2 RX2P 2...

Page 26: ...nd Button R608 R611 R612 with audio NC POWER ON HI C627 NC 2009 12 14 2009 12 3 R618 10K 5 1 16W 2010 1 13 POWER OFF 2009 12 3 DEL C624 C625 2009 12 3 C626 1UF16V MUTE C627 1nF 50V C624 220P 50V OUT L...

Page 27: ...N901 SOCKET 1 2 3 BD901 KBP306G 05 2 1 3 4 R901 1 MOHM 5 1 4W R902 1 MOHM 5 1 4W C903 0 47UF R940 220 OHM 1 10W C908 2N2 500V L902 14mH 1 4 2 3 L903 0 8uH R918 20K 1 10W 5 C920 1U 25V L901 0 45mH 1 4...

Page 28: ...KOHM 1 10W OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component 1 A4 Thursday July 15 2010 ODM MODEL 02 CONVERTER R802 0 47OHM 1 1 4W R801 0 47 OHM 1...

Page 29: ...B NAME T P V Top Victory Electronics Co Ltd Key Component e2040V D N A B 2 2 Thursday Nov ember 05 2009 TBD 2 0 key TBD DOWN LBADC2 OK AUTO DOWN 2K UP 0 CONNECTOR MENU Power AUTO 2 0K LBADC1 0V 1 118V...

Page 30: ...I SN VDD 1 GP5 T1CKI P1A OSC1 CLKIN 2 GP4 AN3 CIN1 T1G P1B OSC2 CLKOUT 3 GP3 T1G MCLR VPP 4 GP2 AN2 T0CKI INT COUT CCP1 P1A 5 GP1 AN1 CIN0 VREF ICSPCLK 6 GP0 AN0 CIN P1B ICSPDAT 7 VSS 8 VCC VCC_IN OEM...

Page 31: ...20 LCD Color Monitor AOC e2040V 31 8 PCB Layout 8 1 Main Board 715G4002M01000004S...

Page 32: ...20 LCD Color Monitor AOC e2040V 32 8 2 Power Board Adapter Board 715G3980P02000003S...

Page 33: ...20 LCD Color Monitor AOC e2040V 33 Converter 715G3823P04000004S...

Page 34: ...20 LCD Color Monitor AOC e2040V 34 8 3 Key Board 715G4014K01000004C 8 4 Light Sensor Board 715G3995T01000004C...

Page 35: ...e2040V 35 9 Maintainability 9 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 Serv...

Page 36: ...eck power cable is tightened Check Power On Off is On Re plug the power cable Replace main board and check connections Check the LED indicate is OK Check the AC power Replace the converter board OK NG...

Page 37: ...eo Power LED Blue Press the power button is OK Check the LVDS FFC cable or panel The end NG OK OK NG Replace the main board Replace the converter board Replace the LVDS FFC cable or panel NG The end R...

Page 38: ...Reset in factory mode Set to the optimal frequency select the recommended frequency Pull out signal cable and check Self Test Feature Check is ok Check the signal cable and the PC Readjust the phase...

Page 39: ...Miss color Color shift Replace the signal cable Pull out the signal cable and check the screen color display is normal The end Replace the signal cable or PC Reset the factory mode In the user mode se...

Page 40: ...2 Microsoft operation system Windows 95 98 2000 XP 3 ISPTool programs 4 VGA cable LPT cable 5 ISP board PN 715GT034 B 715GT048 1 or715GT035 A 6 ISP Firmware Software a Connection NO1 TPV Part No 715GT...

Page 41: ...TOOL front side ISP TOOL reverse side b Double click the icon to install Port95nt print driver c Install tool programme 1 decompress PS NT68168F Scale IC must use V4 566 version 2 Double click d ISP...

Page 42: ...e click icon and run it e Click TOOL Option FE2P Mode Enable TOOL show f Click tool Option choose Setup ISP tool and then choose LPT Port the next choose NVT Type default click Auto Detect to choose t...

Page 43: ...20 LCD Color Monitor AOC e2040V 43 g Click Load File to use the proper software Click Auto...

Page 44: ...20 LCD Color Monitor AOC e2040V 44 Click Send MX2026 CMD Click AUTO when appear pass as follow picture that burning is successful AUTO...

Page 45: ...C e2040V 45 Note After installation you must restart the PC to take the setup to effect DDC Instruction Connect the programmer 1 Click Loading 2 Choose Analog Digital or Analog and Digital in the menu...

Page 46: ...CD Color Monitor AOC e2040V 46 3 Click some can inspect the type but others cann t do it click the finish as follow 4 After finish click choose the info in the dialog box Click CONFIG INI and OK as fo...

Page 47: ...CD Color Monitor AOC e2040V 47 5 Appear fault as follow please input SN once more Click and check the info If read SN is same as before inputing and model name is same as before that burning is succes...

Page 48: ...roma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 4 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 30 y 329 30 Y 180 30 cd m2 4...

Page 49: ...roma 7120 RGB value meet the tolerance 100 5 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 4 with up or down arrow on...

Page 50: ...20 LCD Color Monitor AOC e2040V 50 12 Monitor Exploded View...

Page 51: ...09505 095G802210TE01 HARNESS 10P A1253 10P A1253 90MM 0D1G1730 8120 SCREW 705GHA34014 BASE ASS Y 705GHA34015 REAR COVER_STAND ASS Y E750 750GLV200O1221N000 PANEL TPM200O1 L02 C1B FQ TPV ADPCA1236HD1 A...

Page 52: ...20 25V RZW 8 20 C907 067G515Z82015L EC 82UF 20 450V RXQ 18 31 5 D903 071G 55 30 FERRITE BEAD 4 0 2 3 D902 071G 55 30 FERRITE BEAD 4 0 2 3 L902 073G 174514 X LINE FILTER 14mH MIN L901 073G 174515 X LIN...

Page 53: ...A SOT 23 R427 061G0402000 JY RST CHIPR 0 OHM 5 1 16W YAGEO R408 061G0402000 JY RST CHIPR 0 OHM 5 1 16W YAGEO R406 061G0402000 JY RST CHIPR 0 OHM 5 1 16W YAGEO R115 061G0402100 JY RST CHIPR 10 OHM 5 1...

Page 54: ...4 061G0402223 JY RST CHIPR 22KOHM 5 1 16W YAGEO R136 061G0402223 JY RST CHIPR 22KOHM 5 1 16W YAGEO R123 061G0402223 JY RST CHIPR 22KOHM 5 1 16W YAGEO R139 061G0402224 JY RST CHIPR 220KOHM 5 1 16W YAGE...

Page 55: ...Y CAP CHIP 0402 100N 16V X7R 10 C438 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C702 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C705 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C706 065G040...

Page 56: ...408 065G060310512K A CAP CHIP 0603 1UF K 16V X7R C414 065G060310512K A CAP CHIP 0603 1UF K 16V X7R C415 065G060310512K A CAP CHIP 0603 1UF K 16V X7R C424 065G060310512K A CAP CHIP 0603 1UF K 16V X7R C...

Page 57: ...1G0603102 JT RST CHIP 1K 1 10W 5 TZAI YUAN R918 061G0603103 JT RST CHIP 10K 1 10W 5 TZAI YUAN R911 061G0603202 JT RST CHIPR 2KOHM 1 10W TZAI YUAN R919 061G06034532FF RST CHIPR 45 3KOHM 1 1 10W FENGHUA...

Page 58: ...100R 1 10W 5 TZAI YUAN R812 061G0603101 JT RST CHIP 100R 1 10W 5 TZAI YUAN R803 061G0603102 JT RST CHIP 1K 1 10W 5 TZAI YUAN R810 061G0603102 JT RST CHIP 1K 1 10W 5 TZAI YUAN R821 061G0603103 JT RST C...

Page 59: ...S CONVERTER BOARD PCB U012 056G 192 25 D AMP AS358MTR E1 SOIC 8 U011 056G1125200 IC MCU PIC12F615 I SN SOIC 8 Q011 057G 417 16 T MMBT2907 Q012 057G 761 18 T TRA SST2222A SST3 ROHM Q013 057G 761 18 T T...

Page 60: ...RH 2 5X3X1 0 F901 084G 55 7W FUSE 3 15A 250V Wickmann J901 095G 90 23 JUMPER WIRE J902 095G 90 23 JUMPER WIRE J903 095G 90 23 JUMPER WIRE J904 095G 90 23 JUMPER WIRE J906 095G 90 23 JUMPER WIRE E715...

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