LCD Color Monitor ENVISION P851
34
White screen
White screen
X401 oscillate
waveform is normal
Check U301 Q302 is
broken?
Check Correspondent
component.
Replace PANEL
Check Correspondent
component.
Replace U401
OK
OK
OK
Replace X401
NG
NG
NG
NG
Check reset circuit of
U401 is normal
Measure U301 base
is low level?
OK
Summary of Contents for ENVISION P851
Page 15: ...LCD Color Monitor ENVISION P851 15 2 Backlight ...
Page 27: ...LCD Color Monitor ENVISION P851 27 7 PCB Layout 7 1 Main Board ...
Page 28: ...LCD Color Monitor ENVISION P851 28 7 2 Power Board ...
Page 29: ...LCD Color Monitor ENVISION P851 29 7 3 Key Board ...
Page 40: ...LCD Color Monitor ENVISION P851 40 10 Monitor Exploded View ...