17" LCD Color Monitor
Dell E178FPC
50
No picture (LED orange)
No picture
Measure U701 PIN2=3.3V
C702 “-”=1.8V
Replace U401
X401 oscillate
waveform is normal
Replace Q702, U702
OK
OK
OK
NG
Check HS/VS from
CN405 is normal
Replace X401
Check Correspondent
component
NG
NG
Replace U401
Whether the reset
of the Scalar IC is
useful?
Check C418, D414,
D415, R404
NG
OK
Summary of Contents for E178FPC
Page 41: ...17 LCD Color Monitor Dell E178FPC 41 8 PCB Layout 8 1 Main Board ...
Page 42: ...17 LCD Color Monitor Dell E178FPC 42 ...
Page 43: ...17 LCD Color Monitor Dell E178FPC 43 ...
Page 44: ...17 LCD Color Monitor Dell E178FPC 44 8 2 Power Board ...
Page 45: ...17 LCD Color Monitor Dell E178FPC 45 ...
Page 46: ...17 LCD Color Monitor Dell E178FPC 46 ...
Page 47: ...17 LCD Color Monitor Dell E178FPC 47 8 3 Key Board ...
Page 60: ...17 LCD Color Monitor Dell E178FPC 60 12 Exploded View ...