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AOC e2250Swnk, Service Manual, Page: 45 / 57

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AOC e2250Swnk Service Manual Download Page 45

45 

 

2. No Video (Power LED Blue) 
 

No Video (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

   

Replace the key board 

 

NG 

OK 

Replace the main 

board and connection 

OK 

Summary of Contents for e2250Swnk

Page 1: ...ist 2 Important Safety Notice 3 1 Monitor Specification 4 2 LCD Monitor Description 5 3 Operation Instruction 6 3 1 General Instructions 6 3 2 Control Buttons and Connections 6 3 3 OSD Setting 8 4 Input Output Specification 24 4 1 Input Signal Connector 24 4 2 Preset Display Modes 25 4 3 Panel Specification 26 5 Block Diagram 28 5 1 Main Board 28 5 2 Power Board 29 6 Schematic 30 6 1 Main Board 30...

Page 2: ...2 Revision List Version Release Date Revision History TPV Model Name A00 Oct 31 2012 Initial release TIB2RV2BAGA3NNE TIA4RV2BAGA2NNE TIA4RV2BAGA3NNE TIA4RV2BAGACNNE ...

Page 3: ...may 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 out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAUTION Use of cont...

Page 4: ...4 1 Monitor Specifications ...

Page 5: ...ss 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 Monitor Block Diagram AC IN 100V 240V Power board Flat Panel and LED backlight Main Board RS232 Connector For white balance adjustment in factory mode LED Drive Video signal DDC HOST Computer Key Board ...

Page 6: ...up 3 2 Control Buttons and Connections Power Press the Power button to turn on off the monitor Eco DCR Press the Eco key continuously to select the Eco mode of brightness and DCR on when there is no OSD Eco mode hot key may not be available in all models 4 3 or wide When 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 resolutio...

Page 7: ...er cable to the AC port on the back of the monitor 2 Connect one end of the 15 pin D Sub cable to the back of the monitor and connect the other end to the computer s D Sub port 3 Turn on your monitor and computer If your monitor displays an image installation is complete If it does not display an image please refer Troubleshooting ...

Page 8: ...u want to adjust 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 press and hold the MENU button while the monitor is off and then press power button to turn the monitor on Notes 1 If the product has only one signal input the item of Input Select is d...

Page 9: ...9 Luminance 1 Press Menu to display menu 2 Press or to select Luminance and press to enter 3 Press or to select submenu and press to enter 4 Press or to adjust ...

Page 10: ...10 5 Press two times to exit ...

Page 11: ...11 Image Setup 1 Press Menu to display menu 2 Press or to select Image Setup and press to enter 3 Press or to select submenu and press to enter 4 Press or to adjust ...

Page 12: ...12 5 Press two times to exit ...

Page 13: ...13 Color Setup 1 Press Menu to display menu 2 Press or to select Color Setup and press to enter 3 Press or to select submenu and press to enter 4 Press or to adjust ...

Page 14: ...14 5 Press two times to exit ...

Page 15: ...15 Picture Boost 1 Press Menu to display menu 2 Press or to select Picture Boost and press to enter 3 Press or to select submenu and press to enter 4 Press or to adjust ...

Page 16: ...16 5 Press two times to exit ...

Page 17: ...17 OSD Setup 1 Press Menu to display menu 2 Press or to select OSD Setup and press to enter 3 Press or to select submenu and press to enter 4 Press or to adjust ...

Page 18: ...18 5 Press two times to exit ...

Page 19: ...19 Extra 1 Press Menu to display menu 2 Press or to select Extra and press to enter 3 Press or to select submenu and press to enter 4 ...

Page 20: ...20 Press or to adjust 5 Press two times to exit ...

Page 21: ...21 Exit 1 Press Menu to display menu 2 Press or to select Exit and press to enter 3 Press two times to exit ...

Page 22: ...nstalling the e Saver software follow the install wizard to complete software installation Under each of the four PC status you may choose from the pull down menu the desired time in minutes for your monitor to automatically shutdown The example above illustrated 1 The monitor will never shutdown when the PC is powered on 2 The monitor will automatically shutdown 5 minutes after the PC is powered ...

Page 23: ...ng tool it splits the desktop into different panes each pane displays a different window You only need to drag the window to a corresponding pane when you want to access it It supports multiple monitor display to make your task easier Please follow the installation software to install it ...

Page 24: ...24 4 Input Output Specification 4 1 Input Signal Connector ...

Page 25: ...25 4 2 Preset Display Modes ...

Page 26: ...ule with WLED Backlight unit and 30 pins 2ch LVDS interface This module supports 1920 x 1080 Full HD mode and can display up to 16 7M colors The converter module for Backlight is not built in 4 3 2 General Specifications 4 3 3 Electrical Characteristics Electrical characteristics Vcc 5 0 V Ta 25 2 º C Fr 60Hz ...

Page 27: ...27 LED array electrical characteristics Ta 25 2 4 3 4 Optical Characteristics Ta 25 C ...

Page 28: ... 01 Top 715G4737 M0B 000 0040_101028 02 Input DSUB_R DSUB_G DSUB_B DSUB_V DSUB_R DSUB_G DSUB_B DET_CABLE DSUB_H DSUB_SOG DDC1_SDA DDC1_SCL CMVCC1 EDID_CTRL 05 Power on_BACKLIGHT Adj_BACKLIGHT VCC1 2 CMVCC VCC3 3 Mute Volume PANEL_ID CMVCC1 VCTRL 03 Scalar DSUB_R DSUB_G DSUB_SOG DSUB_B DSUB_R DSUB_G DSUB_B DSUB_H DSUB_V Adj_BACKLIGHT VCC1 2 VCC3 3 PA 0 1 PB 0 9 DDC1_SDA DDC1_SCL DET_CABLE on_BACKLI...

Page 29: ...FF DIM L801 LED CN804 PWM Control OZ9998BGN U801 14 5V EMI filter Start Resistor R908 R911 PWM Control LD7576AGR U901 Bridge Rectifier and Filter Rectifier diodes Transformer T901 Feedback Circuit Regulator IC903 5V Photo coupler U902 Power Switch Q901 ...

Page 30: ... 1 16W 5 R112 75 OHM 5 1 16W R107 75 OHM 5 1 16W C109 47nF 16V R105 2K2 1 16W 5 R115 100R 1 16W 5 R108 100R 1 16W 5 R103 100R 1 16W 5 C101 47nF 16V R116 75 OHM 5 1 16W R114 100R 1 16W 5 GND POWER R118 100K 1 16W 5 DSUB_5V DGND ESD_5V H_Sy nc DSUB_SDA DDC1_SDA 5 ESD_5V ESD_5V DSUB_H 5 DSUB_V 5 DET_CABLE 5 DSUB_R 5 DSUB_R 5 DSUB_G 5 ミΑCONN DSUB_G 5 DSUB_SOG 5 DSUB_B 5 DSUB_B 5 DDC1_SCL C115 NC 候綼 U1...

Page 31: ... ID 1A A AOC 50 ID 1A C 5 7 Friday June 24 2011 715G4737 M02 称爹 03 Scalar 715G4737 M02 000 0040_110620 R463 NC R464 NC EDID_CTRL R485 4K7 1 16W 5 0 LBADC1 2K 2K 1 118V MENU LBADC2 0 673V UP 1 118V 1K CN402 NC CONN 1 2 3 4 5 6 0V DOWN AUTO KEY2 KEY1 VCC3 3 VCC1 2 CN407 NC CONN 1 2 3 4 5 6 7 R405 100R 1 16W 5 R427 3K9 5 1 16W C407 100N16V R424 NC C412 20pF 50V FB404 NC L T_SCL 4 L T_SDA 4 C411 20pF ...

Page 32: ...cs Co Ltd Key Component 絬 隔 瓜 絪 腹 AOC 50 ID 1A A AOC 50 ID 1A A 6 7 Friday June 24 2011 715G4737 M02 称爹 04 Output 715G4737 M02 000 0040_110620 PB9 PB8 CN405 for 18 5 panel single LVDS channel PB7 PANEL_VCC L T_SDA PA 0 1 PB6 PA4 PA5 PA 4 9 L T_SCL PA6 PA7 PA9 PA8 PB5 PB4 PA1 PB3 PB 0 9 PB4 PB3 PB1 PB0 PB2 PB5 PB9 PB8 PB7 PB6 PB2 PB1 R488 NC 82 KOHM 5 1 16W PB1 PB9 PB2 PA0 PA5 PA6 PA9 PA4 PA8 PB7 P...

Page 33: ...465 NC VCTRL 5 Audio model R419 R418 R486 Non Audio model NC NC 100 ohm 0 ohm NC 100 ohm CN404 CONN 1 2 3 4 5 6 7 8 9 R450 NC NC R0402 R480 NC 1 5 OHM 5 2WS R479 0R05 1 4W Volume BKLT EN BKLT VBRI Mute C_PANEL_INDEX BKLT EN Volume CMVCC BKLT VBRI CMVCC U404 NC G1117 33T43UF ADJ GND 1 VOUT TAB 2 VIN 3 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Co...

Page 34: ... 50V R906 100K C922 470UF M 16V C924 0 1uF 50V R914 NC D908 NC IN4148 R933 NC R905 470OHM 5 1 8W C927 47N 50V R904 250OHM2W D902 SR515 FB903 BEAD 1 2 R919 220 OHM 1 8W D901 SR515 C923 1nF 50V R917 10 OHM 1 4W R910 100 OHM 1 4W R920 2K 1 8W R909 100 OHM 1 4W T901 POWER X FMR 1 3 4 5 6 7 8 9 10 11 12 C908 0 47UF Q901 P0765ATF C928 2N2 500V U902 PC123X2YFZOF 1 2 4 3 U901 LD7576AGR CT 1 COMP 2 CS 3 GN...

Page 35: ...NC C813 100PF 50V R819 NC R812 0 1R 1 R818 10K 1 8W R813 0 1R 1 D801 SK310B 1 2 R814 10 OHM 1 1 4W C807 220N 50V R821 NC R803 300K 1 8W C811 0 47UF 50V R822 NC Q801 APM8005KCTRG S1 1 G1 2 S2 3 G2 4 D2 5 D2 6 D1 7 D1 8 R817 100 OHM 1 4W C803 1N 50V C805 1UF 25V L801 47UH CN804 CONN 1 2 3 4 5 6 7 8 FB802 BEAD 1 2 C806 220N 50V R810 24K 1 8W 1 R816 7 5K OHM 1 C814 100N 50V C815 1N 50V FB801 BEAD 1 2 ...

Page 36: ...Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬 隔 瓜 絪 腹 e950Sw B N A B 2 2 Tuesday Nov ember 02 2010 715G4747 称爹 2 0 key G4747 K0B 000 0040 101026 SW002 SW SW003 SW SW001 SW SW004 SW R003 2KOHM 1 1 10W R002 0R01 1 10W C001 NC 0 1uF 50V R001 2KOHM 1 1 10W SW005 SW C002 NC 0 1uF 50V R004 1K 1 10W DOWN LBADC1 1 118V 0 673V 1K CN001 Wire Harness 1 2 3 4 5 6 SGN...

Page 37: ...37 7 PCB Layout 7 1 Main Board 715G4737M02000004I ...

Page 38: ...38 ...

Page 39: ...39 7 2 Power Board 715G4744P01003001M ...

Page 40: ...40 ...

Page 41: ...41 ...

Page 42: ...42 7 3 Key Board 715G4747K02000001C ...

Page 43: ...intainability 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 44: ... 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 ...

Page 45: ...ue 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 Replace the key board NG OK Replace the main board and connection OK ...

Page 46: ...ry 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 in the user mode Replace the main board Replace the panel NG NG NG OK NG NG OK The end OK NG ...

Page 47: ...r 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 settings until customer satisfy Replace the main board NG OK NG OK NG ...

Page 48: ...120 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 20 y 329 20 4 Adjust the RED on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN on factory window until chroma 7120 indicator reachedthe value G 100 6 Adjust the BLUE on factory window until chroma...

Page 49: ...bove 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 Channel 10 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 until chroma 7120 indicator reached the value R 100 5 A...

Page 50: ... Exploded Views NO PART NAME Q TY 1 BEZEL 1 2 FUNCTION BUTTON 1 3 POWER LENS 1 4 MYLAR 1 5 MAIN FRAME 1 6 HINGE PLATE 2 7 REAR COVER 1 8 HINGE 1 9 STAND 1 10 STAND COVER 1 11 BASE 1 12 RUBBER FOOT 4 13 HINGE COVER 1 ...

Page 51: ...1B WH TPV WH TPV 2nd source A15G1587101 BKT_HINGE A15G1597101Q05 MAINFRAME A33G1181ABJ 1L0100 KEY A33G1182 1 1L0100 LENS_POWER A33G1183ABJ 1L0100 STAND_TOP A33G1184ABJ 1L0100 COVER_HINGE A34G2530ABJ 1B0100 COVER_STAND A34G2547AEDWFB0105 BEZEL A34G2548ABJ0SK0100 REAR_COVER A34G2549AED 1B0130 BASE FOR E2250SW AM1G1740 10125 SCREW H37G0030014 HINGE 21 5 H40G 001624 1A CARTON LABEL BARCODE 1 H40G 4576...

Page 52: ...T901 080GL22T 3 N3 X FMR 490UH 7 4UH YUVA 1656 CN901 087G 501 48 DL AC SOCKET 3PIN 3 Hole BD901 093G 50460514 BRIDGE KBP306G 05 3A 800V KBP D901 093G 60335 DIODE SR515 5A 150V DO 201AD D909 093G 60519 DIODE SR560 MK23 5A 60V DO 27 SECOS D905 093G 60519 DIODE SR560 MK23 5A 60V DO 27 SECOS CN902 095G 825 9D518 HARNESS 9P SCN 9P PLUG 120mm CN804 311GW200A06ABX WAFER 2 0mm 6P 705GHA57006 Q901 ASS Y 70...

Page 53: ...70OHM 5 1 8W TZAI YUAN R816 061G08056201FT RST CHIPR 6 2KOHM 1 1 8W TZAI YUAN R925 061G08059101FF RST CHIPR 9 1KOHM 1 1 8W FENGHUA F801 061G1206000 JT RST CHIPR MAX0R05 1 4W TZAI YUAN RJ803 061G1206000 JT RST CHIPR MAX0R05 1 4W TZAI YUAN R917 061G1206100 JT RST CHIPR 10 OHM 5 1 4W TZAI YUAN R814 061G12061009FF RST CHIP 10 OHM 1 1 4W FENGHUA R903 061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R9...

Page 54: ...R 1206 2N2 500V X7R 10 D801 093G 60S907 T SCHOTTKY B3100B 3A 100V SMB 709G4744 HS001 CONSUMPTIVE ASS Y PLA9361AHD1AI POWER BOARD FOR AI SW003 077G603S AI HJ TACT SWITCH AI 2PIN SEALED SW002 077G603S AI HJ TACT SWITCH AI 2PIN SEALED SW001 077G603S AI HJ TACT SWITCH AI 2PIN SEALED SW005 077G603S AI HJ TACT SWITCH AI 2PIN SEALED SW004 077G603S AI HJ TACT SWITCH AI 2PIN SEALED E715 715G4747K02000001C ...

Page 55: ... 23 JUMP WIRE J807 095G 90 23 JUMP WIRE J808 095G 90 23 JUMP WIRE J809 095G 90 23 JUMP WIRE J908 095G 90 23 JUMP WIRE C922 367G415X4713AT EC 470uf 20 16V 10X13 RS C918 367G415X6814AT EC 680uf 20 25V 10x20 RS 709G4744 HA001 CONSUMPTIVE ASS Y E715 715G4744P01003001C PWR PCB FR1 SS 193X132 1 6 mm 2nd source E715 715G4744P01003001M PWR PCB FR1 SS 193 132 1 6mm D904 093G 6026T52T CTIFIER DIODE FR107 U4...

Page 56: ... R435 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R433 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R414 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R410 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R408 061G0402103 JT RST CHIP 10K 1 16W 5 TZAI YUAN R118 061G0402104 JT RST CHIP 100K 1 16W 5 TZAI YUAN R436 061G0402104 JT RST CHIP 100K 1 16W 5 TZAI YUAN R492 061G0402220 JT RST CHIP 22R 1 16W 5...

Page 57: ...402105A5K A CAP CHIP 0402 1UF K 10V X5R C411 065G040220031J Y CAP 0402 20PF 5 50V NP0 C412 065G040220031J Y CAP 0402 20PF 5 50V NP0 C103 065G040222031J A CAP 0402 22PF J 50V NPO C102 065G040222031J A CAP 0402 22PF J 50V NPO C106 065G040222322K T CAP MLCC 0402 22nF K 25V X7R C408 065G040222415K T CAP CHIP 0402 220nF K 16V X5R C434 065G040222415K T CAP CHIP 0402 220nF K 16V X5R C113 065G040247312K A...

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