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Service Manual AOCe941Series
LCD 显示器维修手册
Custom： AOC
Model： e941Series
The manual adaptation models:
AOC e941VA /e941SA /e941S
1
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Service Manual AOCe941Series REVISION LIST Version Release Date Revision History Model TPV Model No e941VA T995NTNBWVK2PNJ A00 May-30-2010 Initial Release e941SA T995NSNCWVA1UNJ e941S T992NSN8WVA1NNJ T9A2NS2DWVA4QNE A01 Aug.-26-2010 Add new Models e941S T9A5NS2DWVA4QNE 2
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Service Manual AOCe941Series CONTENTS 1. LCD Specifications ----------------------------------------------------------------------------------------------------------------- 4 1.1 Product Features ---------------------------------------------------------------------------------------------------------------- 4 1.2 Factory Preset Timing ----------------------------------------------------------------------------
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Service Manual AOCe941Series 1. LCD Specifications 1.1 Product Features Monitor Model AOC e941VA / e941SA * / e941S * Driving system TFT Color LCD LCD Panel Active Display Area 408.24mm (W)×255.15mm(H) Pixel Pitch 0.2835 mm×0.2835mm R,G,B Analog Interface，75ohm,0.7V Video DVI digital Interface Input Separate Sync. H/V TTL H-Frequency 30kHz—81kHz V-Frequency 56Hz--75Hz D-Sub 15pin Input Connector DVI 24
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Service Manual AOCe941Series 1.2 Factory preset modes HORIZONTAL VERTICAL STANDARD RESOLUTION FREQUENCY FREQUENCY 640×480 31.469kHz 59.94Hz VGA 640×350 37.861kHz 72.80Hz 640 × 480 37.50kHz 75.00Hz 640 × 480 31.469kHz 70.087Hz DOS-mode 720 × 400 31.469kHz 70.087Hz Mac-mode 832 ×624 49.725kHz 74.50Hz 800 × 600 35.16kHz 56.25Hz 800 × 600 37.879kHz 60.317Hz SVGA 800 × 600 48.07kHz 72.188Hz 800 × 600 46.875k
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Service Manual AOCe941Series 2. Operation instruction Generalization Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. The power cord should be connected. Connect the video cable from the video card of PC to the monitor. Press the power button to turn o
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Service Manual AOCe941Series 2.2 OSD User mode adjustment a) OSD Menu adjustment steps: 1.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 button may select item you wish to enter. 4. Press MENU button to enter, and press Left button or Right button to adjust
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Service Manual AOCe941Series 3.Interface description 3.1 VGA 15pin Connector Pin No. 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-Serial Clock 8. Blue GND 15 6 10 VGA Connector layout 11 15 3.2 DVI Connector Pin No. Description Pin No
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Service Manual AOCe941Series 3.3 USB+ Audio in port Bottom View Top View *This section to e941VA do show that other models will be a slight trade-off. 9
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Service Manual AOCe941Series 4. Panel Feature The Panel-TPM190A1-MWW3 is a 19 inch wide TFT-LCD module with LED Backlght unit and a 30-pin 2ch –LVDS interface . This module supports 1400×900 WXGA mode and displays up to 16.7 millions colors.The converter module for the Backlight Unit is not built in. 4.1 General Specifications 4.2 Electrical Absolute Ratings Item Symbol Min Typ Max Unit Power Supply Voltag
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Service Manual AOCe941Series 4.4 TFT LCD Module Block Diagram 4.5 LCD module input terminal pin assignment 11
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Service Manual AOCe941Series 4.6 LED Connector Pin No Signal name 1 LED1 2 LED2 3 LED3 4 LED4 5 VLED(Voltage in) 6 VLED(Voltage in) 7 LED5 8 LED6 9 LED7 10 LED8 4.7 Optical Specifications 12
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Service Manual AOCe941Series 5.Block Diagram 5.1 LCD Block Diagram Monitor Block Diagram LED-bar backlight Panel USB LVDS Memory Speaker 3W×2 DC-AC inverter Main Board Audio AC-DC(5V/12V) USB Amplifiers HUB Power Board PC- VGA PC- DVI Audio in Key board /DDC /DDC AC supply USB cable 90V-264V From PC Input signal 5.2 MainBoard Block Diagram (1)e941VA---715G3737 Crystal 12MHz Panel
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Service Manual AOCe941Series (2)e941SA---715G3225 Crystal 12MHz Panel Interface (CN403/405) (X401) Scalar NT68168FG EEPROM (Include ADC, OSD, MCU) PM25LD020C (U401) (U402) 5V 3.3V 1.8V H sync V sync D-Sub Key Board Voltage converter Connector Control (CN101) (CN401/402) 5V 5.3 Power Board Block Diagram Power/ Converter Board Block Diagram Fuse EMI Smoothing Rectifier Transformer 12V 12V Capaci
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Service Manual AOCe941Series 5.4 Software Flow Chart Start Software Flow Chart Initial_MCU Y Check if DataBuffer Is blank To Write default values Check if Sum is changed ? Brightness Contrast Read parameter_from Buffer Language InputType InputTimingStableCounter OsdCounter Init_GlobalVariables PowerDownCounter Initial_MCU Device while PowerHandler if standby mode? No signal message InputTiming N LED turn
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Service Manual AOCe941Series 6. Circuit Schematic 6.1 Main Board 1---715G3737-M01 04.SCALER 02.INPUT VCC3.3 R0+ R0+ R0+ VCC3.3 R0- R0- R0- SOG_DET VCC1.8 SOG_DET SOG_DET VCC1.8 +5V G0+ +5V G0+ G0+ G0- +5V G0- G0- +5V 05.PANEL INTERFACE B0+ B0+ B0+ B0- B0- B0- EDID_W P AHS0 EDID_WP AHS0 AHS0 AVS0 AVS0 AVS0 PA[0..9] DDCSDA1 DDCSDA1 DDCSDA1 PA[0..9] PA[0..9] DDCSCL1 DDCSCL1 DDCSCL1 V
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Service Manual AOCe941Series CN101 DET_VGA R102 100R 1/16W 5% VGA_CABLE_DET VGA_CABLE_DET 5 DB15 10 VGA_5V DDCSCL1 R101 DDCSCL_A 15 5 5 DDCSCL1 100R 1/16W 5% 9 VGA_5V VSIN0 14 4 8 BIN0- HSIN0 13 3 BIN0 R103 R104 R105 C102 7 GIN0- ZD101 BIN0 0R05 1/16W 0R05 1/16W 100R 1/16W 5% 47N16V B0+ B0+ 5 DDCSDA1 R106 DDCSDA_A 12 2 GIN0 RLZ5.6B 5 DDCSDA1 100R 1/16W 5% 6 RIN0- 11 1 RIN0 R107 C103 R
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Service Manual AOCe941Series DVI-input/DDC R127 DVI_CABLE_DET 5 100R 1/16W 5% +5V DVI5V CN102 3,5,7 +5V 8 VSYNC 15 DET_DVI DVI5V SYNC GND 6 SCL_DVI R128 100R 1/16W 5% D102 DDC SCL 7 SDA_DVI R129 100R 1/16W 5% ESD_DVI BAV70 DDC SDA 14 DVI5V R130 10K 1/16W 5% +5V 16 HPD Q101 HPD U104 ESD_DVI NC 11 1 6 ESD_DVI 1/3shield CH1 CH4 DVI_HPD 5 3 2 5 ESD_DVI ZD102 U105 C116 2/4shield VN VP 19
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Service Manual AOCe941Series Power part---5V/3.3V/1.8V +5V VCC3.3 AP2114H-3.3TRG1 U701 FB701 3 2 3,4,5 +5V VCC3.3 5 VI VO +5V VCC3.3 0 OHM +-5% 1/8W + C703 C704 100NF 25V C702 100NF 25V C701 R702 100uF16V +5V 4K7 1/16W 5% 100NF 25V +5V 3,4,5 CN701 R703 100R 1/16W 5% Adj_BACKLIGHT 5 9 C706 + 8 VCC3.3 U702 7 100NF 25V C705 NC/G1084-33T43Uf 6 100uF16V 3 2 VIN VOUT 5 DIM 4 ON/OFF R704 3
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D403 NC C412 100NF 25V D402 NC C411 100NF 25V D401 NC C410 100NF 25V C409 100NF 25V C408 100NF 25V C420 NC D404 NC/RLZ5.6B Service Manual AOCe941Series Scarlar---Flash/key VCC1.8 FB401 CVDD 300OHM CN401 PB[0..9] 6 PB[0..9] PB0 LVB3P R402 NC/2K2 1/16W 5% PB1 LVB3M 1 2 R403 NC/2K2 1/16W 5% C401 C402 C403 PB2 LVBCKP 3 4 VCC3.3 PB3 LVBCKM 5 6 100NF 25V 100NF 25V 100NF 25V PB4 LVB2P 7 8 P
