AOC e2040vwa Service Manual Download Page 38 | Manualshive

Page: 38 / 54

AOC e2040vwa Service Manual Download Page 38

21.5" LCD Color Monitor AOC e2240Vw

38

9.2.2 Power Board

1. No power

Check AC line volt 110V or 240V

Check AC input

Check the voltage of C907 (+)

Check bridge rectified circuit and F901 circuit

Check start voltage for the pin8 of IC901

Check R906, R934 Change IC901

NG

OK

OK

Check D902,D903,D908,D906,IC902,IC903,ZD901

Check IC901 pin1,3 PWM wave

OK

Check IC901

NG

NG

OK

NG

«
...
36
37
38
39
40
...
»

Summary of Contents for e2040vwa

Page 1: ...Characteristics 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 Descripti...

Page 2: ...haracteristics 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...

Page 3: ...CWWA34NE A01 Jul 30 2010 Add new Models TIAANT2EWWA2HNE TI9ANT2DWWA3HNE TIAANT2QWWA2HNE A02 Aug 26 2010 Add new Models TIAANT2PWWA2HNE Add second Panel LGD LM215WF4 TLA1 TIAGNT2DWWA4HNE TIAGNT2PWWA1HN...

Page 4: ...21 5 LCD Color Monitor AOC e2240Vw 4 1 Monitor Specification...

Page 5: ...21 5 LCD Color Monitor AOC e2240Vw 5...

Page 6: ...rol 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 HOST Computer Adapter board Flat...

Page 7: ...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 functions...

Page 8: ...21 5 LCD Color Monitor AOC e2240Vw 8 3 One of DCR Color Boost and Picture Boost functions is active the other two function is turned off accordingly Luminance Image Setup Color Temperature Color Boost...

Page 9: ...21 5 LCD Color Monitor AOC e2240Vw 9 Picture Boost OSD Setup Extra Reset...

Page 10: ...21 5 LCD Color Monitor AOC e2240Vw 10 Exit LED Indicator...

Page 11: ...21 5 LCD Color Monitor AOC e2240Vw 11 4 Input Output Specification 4 1 Input Signal Connector 4 1 1 D SUB connector 4 1 2 DVI connector...

Page 12: ...21 5 LCD Color Monitor AOC e2240Vw 12 4 2 Factory Preset Display Modes...

Page 13: ...e display operating in the normally White mode It has a 215 inch diagonally measured act ive display area wi th FHD resolut ion 1080 ver t ical by 1920hor izontal pixel ar ray Each pixel is divided in...

Page 14: ...21 5 LCD Color Monitor AOC e2240Vw 14 5 2 Optical Characteristics AUO M215HW01 Ta 25 C LGD LM215WF4 TLA1 Ta 25 C VLCD 5V fV 60Hz Dclk 144MHz ILED 110mA...

Page 15: ...21 5 LCD Color Monitor AOC e2240Vw 15 5 3 Electrical Characteristics 1 TFT LCD Module AUO M215HW01...

Page 16: ...21 5 LCD Color Monitor AOC e2240Vw 16 LGD LM215WF4 TLA1 VCC 5 0V VLCD 5 0V Ta 25 2 C fV 60Hz...

Page 17: ...21 5 LCD Color Monitor AOC e2240Vw 17 2 Back Light Unit AUO M215HW01 Ta 25 C LGD LM215WF4 TLA1 Ta 25 2 C...

Page 18: ...21 5 LCD Color Monitor AOC e2240Vw 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: ...n 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...

Page 20: ...ORY Pm25LD020C SCE U402 Scalar NT68668AUFG Include MCU ADC OSD etc U401 LCD Interface CN301 D Sub Connector CN101 H sync V sync RGB EEPROM AT24C02BN U101 DDC1_SCL DDC1_SDA Crystal 12MHZ X401 DVI Conne...

Page 21: ...1 PWM Control TA9690GN IC801 IC802 12V MOSFET Q801 DIM ENA L801 LED CN802 LED CN803 EMI filter Start Resistor R906 R936 PWM Control IC901 Transformer T901 AC input 12V Bridge Rectifier and Filter Feed...

Page 22: ...6 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: ...6V 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...

Page 25: ...V 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...

Page 26: ...and 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...

Page 27: ...70ZFP R947 4 7 OHM R904 0 51OHM 2W CN901 SOCKET 1 2 3 BD901 KBP306G 05 2 1 3 4 R901 2M 1 4W R902 2M 1 4W C903 0 22UF275V R940 1K 1 10W C908 1000pF630V L902 14mH 1 4 2 3 L903 0 8uH R918 20K 1 10W 5 C92...

Page 28: ...eet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component LNPC9B362AHD1 1 A4 Tuesday December 08 2009 715G3823P01000004S ODM MODEL 02 CONVERTER G3823 P01 000 X 1 091029 R805 120KOHM...

Page 29: ...5 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 O...

Page 30: ...21 5 LCD Color Monitor AOC e2240Vw 30 8 PCB Layout 8 1 Main Board 715G4002M01000004S...

Page 31: ...21 5 LCD Color Monitor AOC e2240Vw 31 8 2 Power Board Adapter 715G3980P02000003S...

Page 32: ...21 5 LCD Color Monitor AOC e2240Vw 32 Converter 715G3823P04000004S...

Page 33: ...21 5 LCD Color Monitor AOC e2240Vw 33 8 3 Key Board 715G4014K01000004C 8 4 Light Sensor Board 715G3995T01000004C...

Page 34: ...C e2240Vw 34 9 Maintainability 9 1 Equipments and Tools Requirement 1 Multi meter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Serv...

Page 35: ...power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Measure U702 Vout 3 3V U704 Vout 1 8V Reinsert or check the power section X401 oscillate waveform...

Page 36: ...Measure U702 Vout 3 3V U704 Vout 1 8V Replace U702 U704 CN702 X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected normally I...

Page 37: ...easure Q302 base is low level X401 oscillate waveform is normal Check FB301 Q301 is broken or CN301 solder Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK...

Page 38: ...lt 110V or 240V Check AC input Check the voltage of C907 Check bridge rectified circuit and F901 circuit Check start voltage for the pin8 of IC901 Check R906 R934 Change IC901 NG OK OK Check D902 D903...

Page 39: ...k C802 12V Check MB and Adapter Check ON OFF signal Check main board Check Q801 PIN5 6 7 8 12V Change Q801 Check IC801 IC802 Pin1 2 3 4 5 6 7 8 have the output of square wave at short time Check IC801...

Page 40: ...40 9 2 3 Key Board OK OK OSD is unstable or not working Is Keypad board connecting normally Is Button Switch normally Is Keypad board normally Check main board Connect Keypad Board Replace Button Swit...

Page 41: ...LCD Color Monitor AOC e2240Vw 41 10 Firmware and DDC Instruction ISP DDC writing SOP Please land ftp cs tpv com cn to load relevant writing SOP in the related files Accounts TPVSQZ Code TPVZGDLSQZ2009...

Page 42: ...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 20 y 329 20 4 Adjust the RED on factory window unt...

Page 43: ...hroma 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 44: ...21 5 LCD Color Monitor AOC e2240Vw 44 12 Monitor Exploded View...

Page 45: ...0 SCREW 705GHA34014 SCREW 705GHA34016 2240 REAR COVER_STAND ASS Y E750 750GLU215H1614N000 PANEL M215HW01 V600 SH AUO E750 750GLU215H1624N000 PANEL M215HW01 V60A SH AUO 2nd source A34G1861DAVB1M0130 BE...

Page 46: ...901 073G 174515 X LINE FILTER 0 45mH MIN L903 073G 253902 H IND CHOKE 0 8uH MIN DADO LED1 081G 2 3 1P LED GPG2603T R006 35A GUANGPU E08906 089G 171536 G DC CABLE 1200MM BD901 093G 50460514 BRIDGE KBP3...

Page 47: ...0 OHM 5 1 16W YAGEO R105 061G0402100 JY RST CHIPR 10 OHM 5 1 16W YAGEO R134 061G0402100 JY RST CHIPR 10 OHM 5 1 16W YAGEO R132 061G0402100 JY RST CHIPR 10 OHM 5 1 16W YAGEO R131 061G0402100 JY RST CHI...

Page 48: ...061G0402304 JF RST 0402 300K 5 1 16W FENGHUA R711 061G0402333 JY RST CHIPR 33KOHM 5 1 16W YAGEO R433 061G04023901FY RST CHIPR 3 9KOHM 1 1 16W YAGEO R432 061G04023901FY RST CHIPR 3 9KOHM 1 1 16W YAGEO...

Page 49: ...210412K Y CAP CHIP 0402 100N 16V X7R 10 C709 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C713 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C717 065G040210412K Y CAP CHIP 0402 100N 16V X7R 10 C720...

Page 50: ...P 0603 1UF K 16V X7R C439 065G0805475A2K Y CAP CHIP 0805 4 7UF K 10V X7R C423 065G0805475A2K Y CAP CHIP 0805 4 7UF K 10V X7R C421 065G0805475A2K Y CAP CHIP 0805 4 7UF K 10V X7R C416 065G0805475A2K Y C...

Page 51: ...1G06034532FF RST CHIPR 45 3KOHM 1 1 10W FENGHUA R905 061G08051002FF RST CHIPR 10KOHM 1 1 8W FENGHUA R903 061G08051004FT RST CHIP R 1 MOHM 1 1 8W R942 061G0805101 JT RST CHIP 100R 1 8W 5 TZAI YUAN R910...

Page 52: ...ST CHIP 10K 1 10W 5 TZAI YUAN R806 061G0603103 JT RST CHIP 10K 1 10W 5 TZAI YUAN R813 061G0603103 JT RST CHIP 10K 1 10W 5 TZAI YUAN R817 061G0603103 JT RST CHIP 10K 1 10W 5 TZAI YUAN R819 061G0603104...

Page 53: ...RA SST2222A SST3 ROHM Q012 057G 761 18 T TRA SST2222A SST3 ROHM R025 061G0402101 JY RST CHIPR 100 OHM 5 1 16W YAGEO R014 061G0402102 JY RST CHIPR 1KOHM 5 1 16W YAGEO R019 061G0402102 JY RST CHIPR 1KOH...

Page 54: ...95G 90 23 JUMPER WIRE J903 095G 90 23 JUMPER WIRE J904 095G 90 23 JUMPER WIRE J906 095G 90 23 JUMPER WIRE J901 095G 90 23 JUMPER WIRE E715 715G3980P02000003M ADAPTER BOARD PCB 2nd source E715 715G3980...

Reviews:

No comments