AOC n941S/plus Service Manual Download Page 1 | Manualshive

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AOC n941S/plus Service Manual Download Page 1

Service Manual AOCn941Splus

1

LCD

显示器维修手册

English version

Brand

：

AOC

Model

：

n

941S/plus

编制

editor

TPV-BJ-

朱雨生

2011-11-24

审核

review

TPV-BJ-

常焕华

2011-11-24

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Summary of Contents for n941S/plus

Page 1: ...Service Manual AOCn941Splus 1 LCD English version Brand AOC Model n941S plus editor TPV BJ 2011 11 24 review TPV BJ 2011 11 24...

Page 2: ...Service Manual AOCn941Splus 2 REVISION LIST Version Release Date Revision History Model TPV Model No A00 Nov 24 2011 Initial Release AOCn941S plus T99ANSNYWVA1NNJ T9BENSNYWVA1NNJ T9BANSNDWVA1NNE...

Page 3: ...s 12 4 Disassembly SOP 13 4 1 appropriate tools 13 4 2 Disassembly SOP 14 5 Block Diagram 18 5 1 LCD Block Diagram 18 5 2 MainBoard Block Diagram 18 5 3 Power Board Block Diagram 19 5 4 Software Flow...

Page 4: ...V TTL H Frequency 30kHz 80kHz V Frequency 55Hz 75Hz Dot Clock 136 75MHz Plug Play VESA DDC2B CI Connector D Sub 15pin USB HUB No OSD 14 language OSD menu Power Consumption ON Mode 25W Power Saving Mod...

Page 5: ...31 469kHz 70 087Hz Mac mode 832 624 49 725kHz 74 50Hz SVGA 800 600 35 16kHz 56 25Hz 800 600 37 879kHz 60 317Hz 800 600 48 07kHz 72 188Hz 800 600 46 875kHz 75Hz XGA 1024 768 48 363kHz 60Hz 1024 768 56...

Page 6: ...Description Pin No Description 1 Red Input 9 5VDC 2 Green Input 10 Logic GND 3 Blue Input 11 N A 4 N A 12 SDA DDC Serial Data 5 Connection detect 13 H Sync 6 Red GND 14 V Sync 7 Green GND 15 SCL DDC...

Page 7: ...r Active main menu while no OSD display enter next level on main menu or sub menu status or enter last level on adjustment bar Hotkey exit 3 4 3 or wide Hotkey Audio volume adjust for VA or chang 4 3...

Page 8: ...Press MENU button to display OSD main menu of as below Press Left button or Right button may select other main Menu 2 Press MENU button to adjust items of each main menu 3 Press Left button or Right...

Page 9: ...Service Manual AOCn941Splus 9...

Page 10: ...6 bits HiFRC All input signals are 2 Channel LVDS interface compatible This module does not contain an inverter board for backlight 3 1 General Specifications 3 2 Electrical Absolute Ratings Item Sym...

Page 11: ...Service Manual AOCn941Splus 11 b for backlight lamp 2CCFL 3 4 TFT LCD Module Block Diagram...

Page 12: ...Service Manual AOCn941Splus 12 3 5 LCD module input terminal pin assignment 3 6 Optical Specifications...

Page 13: ...ervice Manual AOCn941Splus 13 4 Disassembly SOP 4 1 appropriate tools Phillips screwdriver spacer screwdriver C D Disassembly Tool Gloves or soft cloth Prepare soft cloth and sponge as working platfor...

Page 14: ...Service Manual AOCn941Splus 14 4 2 Disassembly SOP Remove screw 1...

Page 15: ...Service Manual AOCn941Splus 15 Remove bezel Bezel for n941s plus Remove buttons Remove screw 4 connector 3...

Page 16: ...Service Manual AOCn941Splus 16...

Page 17: ...Service Manual AOCn941Splus 17...

Page 18: ...12V Power Board Main Board Key board PC VGA DDC 2CCFL backlight Panel LVDS AC supply 90V 264V Monitor Block Diagram Input signal Crystal 12MHz X401 Panel Interface CN403 405 Scalar NT68168FG Include A...

Page 19: ...1 MOS Q901 IC PWM IC901 16V Rectifier 5V Rectifier 16V 5V Sense resistor Vcc Rectifier regulating Sampling PhotoCoupler Vcc Open Lamp Protection 16V DC DIM control DC AC Transformer T801 High Voltage...

Page 20: ..._GlobalVariables Initial_MCU Device while InputTiming ModeHandler MenuHandler DebugHandler if standby mode Brightness Contrast Language InputType InputTimingStableCounter OsdCounter PowerDownCounter L...

Page 21: ...DDC_SCL VGA_DET VCC3 3 5V VCC1 8 DDC_WP 5VCC BIN T5P 5 POWER POWER Panel_ID Mute BL_ADJ BL_ON Volume 5V 5VCC DSUB_5V VCC3 3 VCC1 8 ESD_5V T5M T2P ESD_5V T1P E A 3 7 Friday May 21 2010 715G3225 1 1 0...

Page 22: ...0 ohm VGA_R VGA_B 5VCC 5 6 7 VGA_G E B 4 7 Wednesday December 02 2009 715G3225 1 1 0 COVER G3225 A 2 X 8 090311 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Lt...

Page 23: ...7 1 16W 5 VCC3 3 C701 0 1UF 16V 5VCC Volume 5 R705 100R 1 16W 5 VCC3 3 R707 NC VCC3 3 VCC3 3 5 BL_ON 5 SOT223 U702 NC AME8810 AEGTZ 0 6A 3 3V 1 2 3 4 GND VOUT heat sink VIN 4 C709 0 1UF 16V 5V VCC1 8...

Page 24: ...ey 1 R451 100R 1 16W 5 GIN 4 SPI_SI LED_ORANGE C450 NC VCC1 8 7 LED_ORANGE CVDD_1 8 D405 NC RLZ5 6B R468 4K7 1 16W 5 C416 0 1UF 16V C443 4 7uF 16V C0805 VCC3 3 VCC3 3 LEDB C433 0 1uF16V TOUCH_PANEL PO...

Page 25: ...B NAME T P V Top Victory Electronics Co Ltd Key Component R435 22K 1 16W 5 R434 220 OHM 1 4W R1206 TCLK1P 5 C441 0 1UF 16V T0M 2 TCLK1M R433 10K 1 16W 5 5V T4M C419 0 22uF16V T6P 5 T4M TCLK1M 5 C449 1...

Page 26: ...nesday Nov ember 09 2011 715G2892 6 2 ODM MODEL 02 POWER G2892 6 2 X 01 110621 A OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component L901 30mH 1 4 2...

Page 27: ...3 1 2 R840 10K 1 10W 1 CN801A CONN 1 2 C803 NC OLP1 R818 10K 1 10W 1 OLP1 OLP2 R807 10K 1 10W 1 Q810 MMBT3904 R824 68K 1 10W 5 C821 Q802 PDTA144WK D802 BAV70 3 1 2 C816 R827 2 43K OHM 1 1 10W U801 AZ...

Page 28: ...Service Manual AOCn941Splus 28 6 4 Key Board 715G4007 K01...

Page 29: ...Service Manual AOCn941Splus 29 7 Explore Views...

Page 30: ...Service Manual AOCn941Splus 30 8 PCB Layout 8 1 MainBoard 715G3225 1...

Page 31: ...Service Manual AOCn941Splus 31...

Page 32: ...Service Manual AOCn941Splus 32 8 2 PowerBoard 715G2892 7...

Page 33: ...Service Manual AOCn941Splus 33 8 3 KeyBoard 715G4007...

Page 34: ...zer 7 Service Manual 8 User Manual 9 repair tools etc 9 2 Trouble Shooting Main Board No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC 100 240V...

Page 35: ...replace X401 Check CN101 RGB HS VS Check U402 U403 out Check Correspondent component OK NG NG NG NG OK OK OK Replace U401 Updata soft data OK NG Check connector Replace Panel White screen Measure Q404...

Page 36: ...ge of IC901 8pin check component R904 R932 Check T901 1 3 out Vcc Check D904 R913 C913 Check IC901 drive out Check MOS Q901pin G D Check replace IC901 Check R910 R938 Q901 T901pri Around component Che...

Page 37: ...urn check Power Check main board After Power off check ZD802 ZD803 R804 C825 Check IC801 3pin CT waveform Check aroud component Replace IC801 Check IC801 out6 8 9 10pin Check Q802 waveform Check T801...

Page 38: ...1QHJ G3225 1 2 Step1 Connection 1 Connect LPT cable of the PC the other end of cable to connect ISP programming card 715GT034 B 2 VGA cable to Connect the monitor and the tool Check flow chart For the...

Page 39: ...Driver Installation 1 Install print port driver 2 The set up of the writing program Novatek tool 3 After extracting double click the icon to install the system driver ntport24 zip Step 3 Run 1 Double...

Page 40: ...ports VGA interface does not support DVI for FE2P Mode Enable Do not need to tick For a DVI or HDMI must be checked in order to protect the HDCP code 3 Click Option Setup ISP tool The figure appears T...

Page 41: ...Service Manual AOCn941Splus 41 Selection according to the figure click Confirm Change Close the settings 4 Click Option WP Pin select...

Page 42: ...Service Manual AOCn941Splus 42 5 Click Load File Open Specific path and software...

Page 43: ...then re writing DDC is necessary 1 Prepared the PC with Windows XP system DDC recording device 715GT034 12V for figure below 2 Connect the DDC recording device and the PC through PC parallel port 3 se...

Page 44: ...Service Manual AOCn941Splus 44...

Page 45: ...nter the Factory mode then re writing DDC is necessary Step Press MENU button and hold reinsert the Power cord then press MENU the monitor will may enter Factory OSD Menu Then Press Factory OSD Menu w...

Page 46: ...Service Manual AOCn941Splus 46 Turn off the AC power Reboot enter User OSD Menu Reset Exit Complete the update...

Page 47: ...OIC 8 PMC 2nd source U402 056G2233 11 IC Pm25LD020C SCE SIOC 8 150mil 2M 2nd source SMTCR U402 100GANA9000B21 AOCN941S_NT68168_AUOM190PW01V7_V002 AM1G1740 12 47 CR3 SCREW 1 AM1G1740 12 47 CR3 SCREW 3...

Page 48: ...R122 061G0402000 JY RST CHIPR MAX 0R05 OHM 1 16W YAGEO 1 R102 061G0402101 JT RST CHIP 100R 1 16W 5 TZAI YUAN 2nd source R103 061G0402101 JT RST CHIP 100R 1 16W 5 TZAI YUAN 2nd source R104 061G0402101...

Page 49: ...R 10KOHM 5 1 16W YAGEO 1 R406 061G0402104 JF RST CHIPR 100KOHM 5 1 16W FENGHUA 2nd source R406 061G0402104 JT RST CHIP 100K 1 16W 5 TZAI YUAN 1 R462 061G0402105 JF RST CHIPR 1MOHM 5 1 16W FENGHUA 1 R4...

Page 50: ...GEO 1 R112 061G0402750 JY RST CHIPR 75OHM 5 1 16W YAGEO 1 R116 061G0402750 JY RST CHIPR 75OHM 5 1 16W YAGEO 1 R101 061G0603000 JF RST CHIPR MAX 0R05 1 10W FENGHUA 1 R101 061G0603000 JY RST CHIPR MAX0R...

Page 51: ...0402 220NF 10 16V X5R 2nd source C408 065G040222415K T CAP CHIP 0402 220nF K 16V X5R 2nd source C419 065G040222415K T CAP CHIP 0402 220nF K 16V X5R 1 C408 065G040222415K Y CAP CHIP 0402 220nF 16V X5R...

Page 52: ...0603 19R 25 FCB1608KF 190T05 2nd source FB101 071G 59K190 TA CHIP BEAD 0603 19R 25 FCB1608KF 190T05 2nd source D101 093G 64 42 L DIODE LBAV70LT1G SOT 23 LRC 1 D101 093G 64 42 P BAV70 SOT23 BY PAN JIT...

Page 53: ...15S1024LV LOW ESR EC 1000uF 25V M 12 5 20mm 2nd source C922 067G215S4713KV EC 470UF 20 16V 10X13 1 C922 067G215S4713LV LOW ESR EC 470uF 16V M 10 12 5mm 2nd source L901 073G 174 65 H2 LINE FILTER 30mH...

Page 54: ...BT2907A 2nd source Q806 057G 759 2 RK7002FD5T116 SOT 23 BY ROHM 2nd source Q811 057G 759 2 RK7002FD5T116 SOT 23 BY ROHM 2nd source Q802 057G 760 4 DTA144WKA BY ROHM SMT 2nd source Q802 057G 760 4A DTA...

Page 55: ...31503FF RST CHIPR 150KOHM 1 1 10W FENGHUA 1 R822 061G06031503FY RST CHIPR 150KOHM 1 10W YAGEO 2nd source R805 061G0603204 JI RST 0603 200K 5 1 10W 2nd source R833 061G0603204 JI RST 0603 200K 5 1 10W...

Page 56: ...2 061G1206000 JI RST 1206 MAX0R05 5 1 4W 2nd source RJ801 061G1206000 JI RST 1206 MAX0R05 5 1 4W 2nd source JR601 061G1206000 JI RST 1206 MAX0R05 5 1 4W 2nd source RJ804 061G1206000 JT RST CHIPR MAX0R...

Page 57: ...A CAP 0603 10NF 10 50V X7R 2nd source C812 065G060310332K F CAP CHIP 0603 10NF K 50V X7R 1 C915 065G060310332K F CAP CHIP 0603 10NF K 50V X7R 1 C926 065G060310432K A CAP 0603 100NF 10 50V X7R 1 C811 0...

Page 58: ...4 061G152M47852T RST MOFR 0 47 OHM 5 2WS 1 C911 065G 2K152 2T6213 CAP CER 1 5NF 10 2KV Y5P 2nd source C911 065G 2K152 2T6921 CAP CER 1500pF K 2KV Y5P 1 C803A 065G601K104 2T CAP JC 0 1UF K 50V X7R 1 C9...

Page 59: ...9 095G 90 23 JUMPER WIRE 1 J908 095G 90 23 JUMPER WIRE 1 J810 095G 90 23 JUMPER WIRE 1 J800 095G 90 23 JUMPER WIRE 1 J801 095G 90 23 JUMPER WIRE 1 J802 095G 90 23 JUMPER WIRE 1 J803 095G 90 23 JUMPER...

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