Trouble Shooting Flow Chart - ViewSonic va720-1 Service Manual

10. TROUBLE SHOOTING FLOW CHART

10. TROUBLE SHOOTING FLOW CHART
10.1. NO POWER
Start
12V on
C103/+
Y
D111
short
Y
Replace
it
Y
Check
C108,C105,I102
ViewSonic Corporation
Check
N
F801,D810,D811,
D812,D813,I801,
D804
I101
N
Pin 1
>11V
I101
Pin 2
Pulse
Check
Q101,Q102,
D101,D111,
C105
24
N
Y
N
Y
Confidential – Do Not Copy
Check
L101
Check
R108,I101
VA720-1
VE175/b