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AOC N936S, Service Manual, Page: 5 / 61

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AOC N936S Service Manual Download Page 5

 

 

5

2.  LCD Monitor Description 

 

The LCD MONITOR will contain a main board, a power board, a key board and two USB boards which house the flat 

panel control logic, brightness 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. 

 

 

 

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

 
 

HOST Computer 

AC-IN 

100V-240V

 

Power board 

(Include: adapter, inverter) 

Flat Panel and 
CCFL backlight

Main Board 

RS232 Connector 
For white balance 
adjustment in factory 
mode

 

 

CCFL Drive. 

Video signal DDC

Monitor Block Diagram 

Key board 

USB board*2

Summary of Contents for N936S

Page 1: ...y 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 Specificati...

Page 2: ...2 Revision List Revision Date Revision History Remark A00 Aug 01 2011 Initial release T8AMM5NK6WA1NNE T8AMM5NQ6WA1NNE T8BAM5NQ6WA1NNE T8BGM5NQ6WA1NNE T8BAM5NQ6WA2NNE T8BAM5NQ6WA1N6E...

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: ...0 Hz Highest preset resolution 1366x768 60 Hz Plug Play VESA DDC2B CI Input Connector D Sub 15pin Input Video Signal Analog 0 7Vp p standard 75 OHM Power Source 100 240V 50 60Hz Power Consumption Typi...

Page 5: ...gic 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 HOST Computer AC IN 100V 240V Power board Include adapter inver...

Page 6: ...e power cord should be connected Press the power button to turn on the monitor The power indicator will light up 3 2 Control Buttons and Connections Power Press to turn on or turn off the monitor 4 3...

Page 7: ...ays turn off the PC and LCD monitor before connecting 1 Connect the power 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 con...

Page 8: ...8 3 3 OSD Setting Eco mode DCR Standard Text Internet Game Movie Sports DCR...

Page 9: ...9 Standard Text Internet...

Page 10: ...10 Game Movie Sports Notes When Eco mode is not set as Standard Contrast and Brightness can not be adjusted When DCR is set as On Contrast Brightness Eco mode and Gamma can not be adjusted...

Page 11: ...11 Color Boost Full Enhance Nature Skin Sky Blue Green Field Auto Detect Demo Off Exit Full Enhance Nature Skin Sky Blue...

Page 12: ...12 Green Field Auto Detect Demo...

Page 13: ...nhanced suitable for vivid pictures Natural Skin Suitable for human portrait Green Field Suitable for large area of green Sky Blue Suitable for sky or ocean scene Auto Detect Suitable for outdoor or g...

Page 14: ...14 Luminance Brightness Contrast Gamma Brightness Contrast Gamma...

Page 15: ...Eco mode is not set as Standard Contrast and Brightness can not be adjusted When DCR is set as On Contrast Brightness Eco mode and Gamma can not be adjusted Image Setup Clock Phase H Position V Positi...

Page 16: ...16 H Position V Position Exit Notes When the input source is digital signal like DVI or HDMI Image Setup can not be adjusted...

Page 17: ...17 Color Temperature User R User G User B Normal Warm Cool sRGB Exit User R User G User B...

Page 18: ...18 Normal Warm Cool...

Page 19: ...19 sRGB Exit Notes One of DCR Color Boost and Picture Boost functions is active the other two function is turned off accordingly...

Page 20: ...20 Picture Boost V Position H Position Contrast Brightness Frame Size Bright Frame Exit V Position H Position Contrast...

Page 21: ...21 Brightness Frame Size Bright Frame...

Page 22: ...es One of DCR Color Boost and Picture Boost functions is active the other two function is turned off accordingly Extra Language Reset DDC CI OSD Timeout Transparency V Position H Position Off Timer Ex...

Page 23: ...23 Reset DDC CI OSD Timeout...

Page 24: ...24 Transparency V Position H Position...

Page 25: ...25 Off Timer Exit...

Page 26: ...26 Exit LED Indicator...

Page 27: ...FREQUENCY kHz VERTICAL FREQUENCY Hz VGA 640 480 60Hz DMT 31 469 59 94 VGA 640 480 67Hz MAC 35 66 667 VGA 640 480 72Hz DMT 37 861 72 809 VGA 640 480 75Hz DMT 37 5 75 Dos mode 720 400 70Hz DOS 31 469 7...

Page 28: ...with 2 CCFL Backlight unit and 30pin 1ch LVDS interface This module supports 1366 x 768 WXGA mode and can display up to 16 7M colors The inverter module for Backlight is not built in 4 3 2 General Spe...

Page 29: ...29 4 3 4 Optical Characteristics...

Page 30: ...PANEL_ID DSUB_5V CMVCC1 VCTRL TSUM1PFR SCHEMATIC CMVCC1 PB 0 9 CMVCC 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 PA 0 1 PB 0 9 DDC1_SDA DDC1_...

Page 31: ...901 AC input 14 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Photo coupler U902 Feedback Circuit Transformer T801 MOSFET Q803 Lamp Output Circuit PWM Control AM9000ES U801 14 5V Re...

Page 32: ...ay January 06 2009 715G3244 I 02 Input G3244 G X X 6 090105 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component FB102 BEAD 1 2 R473 4K7 1 16W 5 DSUB_...

Page 33: ...16V CN402 NC CONN 1 2 3 4 5 6 DSUB_R 3 PA 4 9 5 EE_WP R458 NC 10K 1 16W 5 Q401 NC AO3401 R408 10K 1 16W 5 C415 NC 0 1uF 16V on_BACKLIGHT 7 MSDA CMVCC1 PA1 PB5 TOUCH POWER R466 2K2 1 16W 5 EDID_CTRL L...

Page 34: ...MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component PB0 C420 0 1uF 16V PB3 PB3 CN405 CONN 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 R436 100K 1 16W...

Page 35: ...GHT 5 2008 01 14 BAT99 If 0 05A VF 1 0V BAV70 If 0 05A VF 1 0V It s need to use Low Dropout Regulator D402 NC 0 OHM 1 3W VCC3 3 DSUB_5V 2 MVCC PANEL_ID 5 Q406 LMBT3904LT1G DSUB_5V R480 2 2 OHM 2W Volu...

Page 36: ...4 43 2K OHM 1 1 4W Q901 FMA07N65GX R935 NC C911 1500PF2KV R904 220 OHM 2W R907 1K 1 10W 1 ON OFF F801 0R05 1 4W 5 14 5V F901 FUSE F902 FUSE BD901 KBP208G 2 1 3 4 C922 470uF 16V HS1 HEAT SINK Q901 1 2...

Page 37: ...2 0 0033uF 50V R803 2K 1 10W 5 D803 BAW56 3 2 1 R809 100K 1 10W 5 C805 1uF 16V C810 0 01uF C803 10pF3KV PWPC9921MHD1 1 Custom 3 3 Wednesday February 04 2009 715G2892 F 3 ODM MODEL 02 INVERTER G2892 1...

Page 38: ...38 7 PCB Layout 7 1 Main Board 715G3244 2...

Page 39: ...39...

Page 40: ...40 7 2 Power Board 715G2892P01019001C...

Page 41: ...41...

Page 42: ...42 7 3 Key Board 715G3371 2 7 4 USB Board 715G3501 3 715G2663 3...

Page 43: ...ntainability 8 1Equipments 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...

Page 44: ...s 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...

Page 45: ...e 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 b...

Page 46: ...y 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...

Page 47: ...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 sett...

Page 48: ...erature 1 Switch 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 3...

Page 49: ...ove 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 Ch...

Page 50: ...ctions 1 Put the monitor on the EPE pad 2 Lay down the monitor then use cross screwdriver or the expert tools leave off the stand while press the Push area of the back cover 3 Overturn the monitor and...

Page 51: ...f one side of USB connector take apart 3 sides and stop Attention Do not break off the key pc side or pull the front frame forcibly to avoid the keypad peel off 6 Overturn the monitor on the USB conne...

Page 52: ...e key pc connect PIN A B lamp line C D peel off the aluminum foil E F draw off the FFC pin G if there is defect with main pc need leave of f the six angle screw H 9 Withdraw the front frame from the P...

Page 53: ...ctive area take off the screws ABCDE to get the relevant part to maintain Before take apart the POWER pc should take off the AC iron piece first 11 Use little screwdriver to peel off the key pc from t...

Page 54: ...54 11 Monitor Exploded View 936...

Page 55: ...095G8014 7WW06 HARNESS 7P 2008 6P 1005 450 E09501 095G8018 3DH92 LVDS CABLE 30P 30P 140MM 2nd source E09501 095G8018 3TH92 HARNESS 30P 30P 2004 140 2nd source 0D1G1030 8120 screw 0M1G 130 5120 SCREW...

Page 56: ...65G 3J5096ET 5PF 5 SL 3KV C803 065G 3J5096ET 5PF 5 SL 3KV C902 065G305M1022BP CAP Y2 1000PF M 250VAC C903 065G305M1022BP CAP Y2 1000PF M 250VAC C900 065G306M2222BP CAP Y1 2 2NF 20 250V Y5P C925 067G21...

Page 57: ...061G0402000 JF RST CHIPR MAX0R05 1 16W FENGHUA R485 061G0402000 JF RST CHIPR MAX0R05 1 16W FENGHUA R483 061G0402000 JF RST CHIPR MAX0R05 1 16W FENGHUA R482 061G0402000 JF RST CHIPR MAX0R05 1 16W FENG...

Page 58: ...AX 0R05 1 10W FENGHUA R467 061G0603000 JF RST CHIPR MAX 0R05 1 10W FENGHUA R101 061G0603000 JF RST CHIPR MAX 0R05 1 10W FENGHUA R434 061G1206331 JF RST CHIPR 330 OHM 5 1 4W FENGHUA D402 061G2010000 JF...

Page 59: ...M 5 1 10W TZAI YUAN R005 061G0603561 JT RST CHIPR 560OHM 5 1 10W TZAI YUAN R004 061G0603561 JT RST CHIPR 560OHM 5 1 10W TZAI YUAN C001 065G060310231J Y CHIP 0603 1000pF 50V NPO C002 065G0603225 A5 NO...

Page 60: ...061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R912 061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R929 061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R930 061G1206101 JT RST CHIPR 100 OHM 5...

Page 61: ...067G215Y2207KT CAP 105 22UF M 50V KINGNICHI EG FB901 071G 55 29 FERRITE BEAD F901 084G 56 4W FUSE 4A 250V F902 084G 56 4W FUSE 4A 250V ZD901 093G 3916752T MTZJ T 72 16B D903 093G 6026T52T CTIFIER DIO...

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