Acer X233HZ User Manual

Page 33

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33

3. Panel Power Circuit

White screen

Measure Q302 base
is low level?

X401 oscillate
waveform is normal

Check CN301 is solder
and Q302, Q301 is OK?

Check Correspondent
component.

Replace PANEL

Check Correspondent
component.

Replace U401

OK

OK

OK

Replace X401

OK

NG

NG

NG

NG

Check reset circuit of
U401 is normal

http://www.wjel.net

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