AOC e2450Swd

Service Manual e2450Swd
43
9. Maintainability
9.1 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-CN101, 3.3V-U103-2;
1.8V-U104,Panel-Vcc-Q104
Check X401 waveform
Replace U402/U401
Replace X401
OK
NG
Check & replace
CN101,U103,U104,Q104,
NG
NG
NG
OK
OK
Check flow chart
For the no power