eMachines E161HQ Service Guide - Page 35

Panel Power Circuit

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3. Panel Power Circuit White screen NG Measure Q404 base X401 oscillate is high level? waveform is normal OK NG OK Check CN403(CN405: E191HQ/ E181H&E161HQ) is broken or Q405 is solder? Check reset circuit of U401 is normal REPLACE X401 Check Correspondent component. NG OK Replace PANEL NG Check Correspondent component. OK Replace U401 35

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35
3. Panel Power Circuit
White screen
Measure Q404 base
is high level?
X401 oscillate
waveform is normal
Check CN403(
CN405:
E191HQ/ E181H&E161HQ
) is
broken or Q405 is solder?
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