HP L1906

19" LCD Color Monitor HP L1906
35
Panel Power Circuit
Check R501 should have
response from 0V to 5V When we
switch the power switch from on to off
NG
Check the PPWR panel power relative circuit,Q602, Q60
3
In normal operation, when LED =green, R609
Should =5 V,
If PPWR no-response when the power switch
Turn on and turn off, re
p
lace the U401
OK, R501 have response
Re-solder CN501 CN502 CN503
OK
Replace PANEL