LCD Color Monitor ENVISION P851
32
8.2 Trouble Shooting
8.2.1 Main Board
No power
No power
Press power key and look if the
picture is norm
al
Sense Resistor
Please reinsert and make sure
the AC of 100-240 is normal
Measure C704 (+) =1.8V
U701 PIN2=3.3V
Reinsert or check the
Adapter/Inverter section
X401 oscillate waveforms are
normal
Check CN701 or replace
Q702, Q703, and U701
Replace U401
Replace X401
OK
OK
NG
NG
NG
OK
NG
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 ...