ViewSonic VTMS2431 - Trouble Shooting Flow Chart

6. Trouble Shooting Flow Chart
START
CHECK MAIN PCB
5
V OK?
Y
CHECK
POWERPCB
D807
,
I801
,
I801
OK
N
3
V3 OK?
Y
CHECK
I103,SUROUND CAP
BEAD OK?
N
D807
,
I801
,
I801
DTV
-
VDD33
CHECK
I204
,
SUROUND CAP
BEAD OK?
N
Y
CHECK
I206
Y
CHECK
I202
SUROUND CAP OK?
D807
,
I801
,
I801
VCC1V
2
-
ST
OK?
CHECK
I105,SUROUND CAP
BEAD OK?
N
Y
CHECK
I206
SUROUND CAP OK?
Y
Y
CHECK
P101
OK?
D807
,
I801
,
I801
PANEL 5V OK?
CHECK
Q105,Q106
N
Y
CHECK
I107
SUROUND OK?
Y
OK?
ViewSonic Corporation Confidential - Do Not Copy VTMS2431
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