Dell E177FPc - Page 43

17" LCD Color Monitor Dell E177FPc
43
No video, LED orange
HS/VS of input is normal
Measure U701 PIN2= 3.3V
U702 PIN2= 1.8V
X401 oscillating waveform is normal
Check U701, U702,
D704
OK
NG
NG
If voltage of U403 PIN5/6 is normal
Check signal cable,
D409, D408
Check X401, C427, C428
Replace U403
OK
OK
OK
NG
Replace U401
Replace U402
NG
NG