Troubleshooting - BenQ SE2241 Product Service Manual

Troubleshooting

STAR
CHECK MAIN PCB
OK?
VCC5V
Y
?
VCC2.5VOK
Y
OK?
VCC3.3V
Y
?
33V_NormalOK
Y
?
VCC1.2VOK
CHECK
POWERPCB
OK ?
CHECK
D807,I801,I801
I116,SUROUND CAP
BEAD OK?
CHECK
D807,I801,I801
I115,SUROUND CAP
BEAD OK?
CHECK
D807,I801,I801
I117,SUROUND CAP
BEAD OK?
CHECK
D807,I801,I801
I101,SUROUND CAP
D101 OK?
59
Y CHECK
P201
OK?
Y CHECK
Q107
SUROUND CAP OK?
Y CHECK
D102
SUROUND CAP OK?
Y CHECK
I116
SUROUND CAP OK?
Y CHECK
L110
SUROUND OK?