AOC E941S, E941SA, E941VA

Service Manual AOCe941series

Main Board 2---715G3225-1-2

Contents

Main Page CONTENTS 1. LCD Specifications 1.1 Product Features * e941SA /e941S no DVI Interface 1.2 Factory preset modes 2. Operation instruction Generalization 5 4 Page 3.Interface description 3.1 VGA 15pin Connector 3.2 DVI Connector 3.3 USB+ Audio in port * 4. Panel Feature 4.1 General Specifications 4.2 Electrical Absolute Ratings Item Symbol Min Typ Max Unit Page 4.6 LED Connector 4.7 Optical Specifications 5.Block Diagram (2)e941SA---715G3225 5V 3.3V 1.8V 5.3 Power Board Block Diagram On/off DIM Power/ Converter Board Block Diagram Software Flow Chart 6. Circuit Schematic 6.1 Main Board 1---715G3737-M01 Input part---VGA/DDC Page DVI-input/DDC Power part---5V/3.3V/1.8V TO252 TO-252 Scarlar---Flash/key NT68668FG-QFP-128 NT68668FG-QFP-128 NT68668FG Output---LVDS connector 6.2 Main Board 2---715G3225-1-2 VA1913 Change net to DDC_SCL,DDC_SDA Viewsonic R101 0402->0603 D-SUB NC pin connect to GND SOT223 TO252 SOT223 Add FB410 for AOC project For LG A only model;, USE 24C04 ADD R473, R474 3 D VSC 1 VA1913 S AO3401L 6.3 Power Board 715G2892-P02---adapter 12V/5V 6.4 Converter Board----715G3918-P02 Dec-17-09 add 6.5 Audio part 715G2892 P02 Page Page Page Page Page Page Page Page Page Page 9. Maintenance Trouble treatment 9.1 Maintainability Requirement 9.2 Trouble Shooting Main Board--- Page Check flow chart For the no power Power Board--- No Power 5V/12V No Backlight of panel Check flow chart for the Inverter No Backlight Page 9.4 Writing DDC program step Page Page 10.BOM List Page Page Page Page Page Page Page Page Page Page Page Page 10.2 Modele941SA--T995NSNCWVA1UNJ 0M1G1030 6120 SCREW M3X6 1 Page Page Page Page Page Page Page Page Page Page Page 10.3 Modele941S-- T9A2NS2DWVA4QNE