Service Manual | AOCe941series |
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
9.2Trouble Shooting Main Board---No Power
No power
Check flow chart For the no power
Press power key and look if the picture is normal
NG
Please reinsert and make sure the AC
NG
OK
Check
NG
OK
Check X401 waveform
NG
OK
Replace U402/U401
Reinsert or check the power section
Check&replace
CN404,U404,Q409,Q410,Q405
Replace X401
40
