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AOC E1621SW -, Service Manual

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AOC E1621SW - Service Manual Download Page 42

 

42 

8.2 Trouble Shooting 

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 power board and check connections 

OK 

NG

OK 

NG

NG

Turn on the Power “On/Off” switch 

Replace key board and check connections 

NG 

Summary of Contents for E1621SW -

Page 1: ...iption 5 3 Operation Instructions 6 3 1 General Instructions 6 3 2 Control Buttons 6 3 3 Adjusting the Picture 7 4 Input Output Specification 20 4 1 Input Signal Connector 20 4 2 Factory Preset Displa...

Page 2: ...2 Revision List Version Release Date Revision History TPV Model Name A00 Aug 03 2011 Initial release T6BCSR2QW1E6NN T6BCSR2PW1E6NN...

Page 3: ...ay 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 implied arising o...

Page 4: ...Hz Highest preset resolution 1366 x 768 60 Hz Plug Play VESA DDC2B CI Input Connector D Sub 15pin Input Video Signal Analog 0 7Vp p standard 75 OHM TMDS Power Source 100 240 V 50 60Hz Power Consumpti...

Page 5: ...s 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 Video signal DDC Power Board Flat Panel and LED bac...

Page 6: ...tton continuously to turn off the monitor 4 3 or wide image ratio hot key There is no OSD press continuously to change 4 3 or wide image ratio If the product screen size is 4 3 or input signal resolut...

Page 7: ...any other function repeat steps 2 3 4 OSD Lock Function To lock the OSD press and hold the MENU button while the monitor is off and then press power button to turn the monitor on To un lock the OSD p...

Page 8: ...8...

Page 9: ...9...

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Page 11: ...11...

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Page 14: ...14...

Page 15: ...15...

Page 16: ...16...

Page 17: ...17...

Page 18: ...18...

Page 19: ...19...

Page 20: ...C 5 Detect Cable 6 GND R 7 GND G 8 GND B 9 5V 10 Ground 11 N C 12 DDC Serial data 13 H sync 14 V sync 15 DDC Serial clock 4 2 Factory Preset Display Modes Stand Resolution Horizontal Freq KHz Vertica...

Page 21: ...mm 344 232 H x193 536 V 15 6 inch diagonal Number of Pixels 1366 3 H 768 V Pixel Pitch mm 0 252 H 0 252 V Color Pixel Arrangement RGB vertical stripe Display Mode Normally white Number of Colors 262 1...

Page 22: ...22 4 3 2 Optical Characteristics Ta 25 VDD 3 3V...

Page 23: ...23 4 3 3 Electrical Characteristics TFT LCD BACKLIGHT...

Page 24: ...UB_5V CMVCC1 VCTRL VCC3 3 03 Scalar DSUB_R DSUB_G DSUB_SOG DSUB_B DSUB_R DSUB_G DSUB_B DSUB_H DSUB_V Adj_BACKLIGHT VCC1 8 VCC3 3 PB 2 9 DDC1_SDA DDC1_SCL DET_CABLE on_BACKLIGHT PPWR_ON PANEL_ID CMVCC...

Page 25: ...25 5 2 Power board EMI filter Start Resistor R920 R921 R922 PWM Control IC901 Transformer AC input 14 5V Bridge Rectifier and Filter Feedback Circuit Rectifier Diodes Photo coupler IC902 5V...

Page 26: ...5 6 I O1 GND I O2 I O3 VDD I O4 10K 1 16W 5 DSUB_SDA R110 47R 1 16W 5 D403 BAV70 3 1 2 FB103 BEAD 1 2 NC DSUB_SCL R472 DSUB_G 5 C102 22pF C106 47N16V VGA_PLUG R121 NC DDC1_SDA NC NC R476 VGA_B R103 1...

Page 27: ...8 200 OHM 5 1 16W VCC1 8 DSUB_V 3 EDID_CTRL 3 NC R420 C411 27PF 50V C419 CMVCC 7 F C 3 5 Thursday January 06 2011 715G4734 03 Scalar G4734 M01 000 0040 03 110106 OEM MODEL Size Rev Date Sheet of TPV M...

Page 28: ...PB 2 9 PB6 R439 10K 1 16W 5 R440 4K7 1 16W 5 R441 1K 1 16W 5 VCC3 3 C425 NC Q411 NC AO4411 1 2 3 4 8 7 6 5 S S S G D D D D D PB8 R436 100K 1 16W 5 VCC3 3 R437 10K 1 16W 5 VCC3 3 VCC3 3 BKLT VBRI 1 14...

Page 29: ...5 R450 NC NC R0402 C_PANEL_INDEX CMVCC 5 6 CMVCC DSUB_5V 2 C427 100uF16V C426 100uF16V CMVCC C422 0 1uF 16V NC C423 100uF16V LG D402 SM340A Q410 MMBT2907A U404 can use package 223 or 252 BAT54C CN404...

Page 30: ...VOL MUTE D908 NC 1 2 R910 100 OHM 1 4W D906 31DQ06FC3 CN902 WAFER 2 5MM 1 2 3 4 5 6 7 8 9 CN903 CONN 1 2 3 4 5 6 7 8 9 10 R901 620K 1 1 4W FB902 BEAD 1 2 BD901 KBP208G 2 1 3 4 R921 3 3 OHM 1 4W R922...

Page 31: ...NC 5V1 R628 0R05 1 10W BKLT VBRI PANEL 1 A Monday Nov ember 08 2010 715G3189 PO1 LED ODM MODEL 04 BUFEER G3189 P02 LED X 19 101108 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory...

Page 32: ...DEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component R005 1K 1 10W 5 OK LED_1 Power LED_1 LED_2 LED DC_POWERON LED01 LED 3 4 1 2 LBADC2 LBADC1 UP R002 2K 1 10W 5 MENU C004 0 1uF 50V SGND C0...

Page 33: ...33 7 PCB Layout 7 1 Main Board 715G4734M01000004I...

Page 34: ...34...

Page 35: ...35...

Page 36: ...36...

Page 37: ...37 7 2 Power Board 715G3189P02LED001S...

Page 38: ...38...

Page 39: ...39...

Page 40: ...40 7 3 Key Board 715G3584K01000004K...

Page 41: ...ntainability 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 Use...

Page 42: ...ed 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 power board and check connections OK NG OK NG N...

Page 43: ...the power button is OK Check the LVDS FFC cable or panel The end NG OK OK NG Replace the main board Replace the power board and connection Replace the LVDS FFC cable or panel NG The end Replace the k...

Page 44: ...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 and pixel clock i...

Page 45: ...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 set the color setti...

Page 46: ...witch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 3 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 30 y 329 30 Y 150...

Page 47: ...e procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Chan...

Page 48: ...48 10 Monitor Exploded View...

Page 49: ...AND COVER 4 KEY BOARD 12 STAND 5 PANEL 13 BASE 6 POWER BOARD 14 FOOT 7 MAIN BOARD 15 INSULATING SHEET 8 MAIN_FRAME No Part No Quantity Description S1 0G1G1030 6120 4 SCREW M3X6 FOR MB PB MAIN_FRAME S2...

Page 50: ...10P 9P H2506 240 120 2nd source E09502 095G8014 6WJ16 HARNESS 6P A2008H 6P A1253HA 100MM 2nd source E09502 095G8014 6XJ16 HARNESS 6P A2008H 6P A1253HA 100MM 707GQA12005 EMI ASS Y 052G 1211 B CONDUCTIV...

Page 51: ...COVER Q34G7136AED 1S0130 BASE Q40G 15N61568A RATING LABEL Q40G000267351A SA SERVICE LABEL Q40G000362416B WIN7 GOLD EPEAT EPA 59X15mm Q41G78S161536A e1621Sw QSG Q44G6014615 1B CARTON FOR e1621Sw Q45G 8...

Page 52: ...517 TRA LMBT3906LT1G 200mA 40V SOT 23 LRC Q402 057G 417517 TRA LMBT3906LT1G 200mA 40V SOT 23 LRC Q406 057G 417518 TRA LMBT3904LT1G 200mA 40V SOT 23 LRC Q407 057G 417518 TRA LMBT3904LT1G 200mA 40V SOT...

Page 53: ...P 100R 1 16W 5 TZAI YUAN R115 061G0402101 JT RST CHIP 100R 1 16W 5 TZAI YUAN R117 061G0402101 JT RST CHIP 100R 1 16W 5 TZAI YUAN R405 061G0402101 JT RST CHIP 100R 1 16W 5 TZAI YUAN R411 061G0402101 JT...

Page 54: ...1 16W FENGHUA R468 061G0402201 JI RST 0402 200R 5 1 16W R466 061G0402202 JF RST CHIPR 2KOHM 5 1 16W FENGHUA R464 061G0402202 JF RST CHIPR 2KOHM 5 1 16W FENGHUA R463 061G0402202 JF RST CHIPR 2KOHM 5 1...

Page 55: ...7KOHM 5 1 16W YAGEO R472 061G0402472 JY RST CHIPR 4 7KOHM 5 1 16W YAGEO R440 061G0402472 JY RST CHIPR 4 7KOHM 5 1 16W YAGEO R435 061G0402472 JY RST CHIPR 4 7KOHM 5 1 16W YAGEO R123 061G0402472 JY RST...

Page 56: ...16V X7R C404 065G040210412K Y CAP 0402 100NF 10 16V X7R C403 065G040210412K Y CAP 0402 100NF 10 16V X7R C401 065G040210412K Y CAP 0402 100NF 10 16V X7R C102 065G040222031J T CAP CHIP 0402 22pF J 50V N...

Page 57: ...59K190 TA CHIP BEAD 0603 19R 25 FCB1608KF 190T05 FB102 071G 59K190 TA CHIP BEAD 0603 19R 25 FCB1608KF 190T05 FB101 071G 59K190 TA CHIP BEAD 0603 19R 25 FCB1608KF 190T05 D403 093G 64 42 P BAV70 SOT23...

Page 58: ...2FZOF SHARP NR901 061G 58 9T RST NTCR 10 ohm 20 5A THINKING C904 063G107K474 6S 0 47UF 10 C904 063G107K474 US NO SUGGEST 0 47uF 10 C902 065G306K3312B3 Y1 CAP 330PF K 250VAC CD C903 065G306K3312B3 Y1 C...

Page 59: ...R628 061G0603000 JF RST CHIPR MAX 0R05 1 10W FENGHUA R917 061G06031001FT RST CHIP 1K 1 10W 1 R917 061G06031001FY RST CHIPR 1KOHM 1 1 10W YAGEO R913 061G06031002FT RST CHIP 10K 1 10W 1 R912 061G0603103...

Page 60: ...06624 JT RST CHIPR 620 KOHM 5 1 4W TZAI YUAN C916 065G060310312K Y CAP CHIP 0603 10NF K 16V X7R C905 065G080510432K A CAP CHIP 0805 0 1UF K 50V X7R C905 065G080510432K F CAP CHIP 0805 0 1UF K 50V X7R...

Page 61: ...NER MTZJ T 72 18B 16 82 0 5 DO 34 ZD902 093G 3954752T DIODE MTZJ16B SEMTECH ZD901 093G 39A0852T GDZJ18B D902 093G 6026T52T CTIFIER DIODE FR107 D901 093G 6038T52T FR103 AO J617 095G 90 23 JUMPER WIRE J...

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