HP L1506 - Troubleshooting Guide

15" LCD Color Monitor HP L1506
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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
Measure U201 PIN2=1.8V
U202 PIN2=3.3V
Reinsert or check the
Adapter/Inverter
X601 and X401 oscillate
waveforms are normal
Check CN201 or replace
U201, U202
Replace U401
Replace U601
Replace X601, X401
OK
OK
OK
NG
NG
NG
NG
NG