AOC E941sa Service Manual
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Service Manual AOCe941series 34 8. PCB Layout 8.1 MainBoard 1- 715G3737-M01
Service Manual AOCe941series 36 Main Board 2---715G3225-1-2
Service Manual AOCe941series 38 8.2 PowerBoard 715G2892-P02
Service Manual AOCe941series 39 8.3 KeyBoard ---715G4007
Service Manual AOCe941series 40 9. Maintenance Trouble treatment 9.1 Maintainability Requirement 1. Voltmeter. & digital multimeter 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 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 is normal ? Reinsert or check the power section Check 5V-CN404, 3.3V-U404-2; 1.8V-Q409/Q410,Panel-Vcc-Q405 Check X401 waveform Replace U402/U401 Replace X401 OK NG Check&replace CN404,U404,Q409,Q410,Q405 NG NG NG OK OK Check flow chart For the no power