Asus VB171T Service Manual page 20

17" LCD Color Monitor
5.2.2 Inverter/Power Board
AC input
EMI filter
Start Circuit: R904, R932, R933
Output
Circuit
Lamp
Feedback
Circuit
Bridge
Transformer
Rectifier
and Filter
PWM
Control IC
Transformer
Over Voltage
Rectifier
diodes
Feedback
Circuit
MOSFET
PWM
Control IC
（IC801）
20
ASUS VB171T&S
CN902
5V
12V
ON/OFF
ON/OFF
Control
DIM