Dell E177FPc Service Manual page 39

17" LCD Color Monitor Dell E177FPc
No video, LED green
Measure ON/OFF voltage of CN701
PIN2 if is normal
NG
OK
Replace U401
CheckQ201/Q202
OK
Short PIN2 and PIN3 of Q203
if the picture is normal
NG
Check ZD201/L201/PT201/Lamp etc
OK
Replace IC201etc
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