HP VS15 Series

HP VS15 Service Manual
45
9.2 Trouble Shooting
9.2.1 Main Board
No power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the AC of 100-240 is normal
Reinsert or check
the power section
Y601 oscillate waveforms
are normal
Measure CN201 PIN5/6=12V?
Measure CN201 PIN7/8=5V?
OK
OK
NG
NG
NG
Check power section
Replace U601
Replace Y601
OK
Replace U401
NG
NG