Dell E228WFPc - Page 46

22" LCD Color Monitor Dell E228WFPc
46
No picture (LED orange)
No picture
Measure U602 PIN2=1.8V
U601 PIN2=3.3V
Replace U401
X301 oscillate
waveform is normal
Replace
U601, U602
OK
OK
OK
NG
Check HS/VS from
CN202 is normal
Replace X301
Check Correspondent
component
NG
NG
Replace U401
Whether the reset
of the Scalar IC is
useful?
Check U302, C333,
C329, ZD301
NG
OK