HP VS17E Service Manual page 31

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