HP VS17E

HP VS17E
31
Panel Power Circuit
Replace PANEL
Measure Q204 base is
high level?
Check Q204 and Q203 are broken
or CN503 solder?
Check Correspondent
component.
OK
OK
NG
NG
Y601 oscillate waveforms are
normal
Replace U601
Replace Y601
OK
Replace U401
NG
NG