BenQ G2320HDB Service Manual page 40

23" LCD Color Monitor
Power Board
AC input
EMI filter
Lamp
Bridge Rectifier
and Filter
Start Resistor
(R904, R905)
PWM Control
(IC901)
Transformer
Output Circuit
(PT801)
Feedback
Circuit
Transformer
Rectifier diodes
Power Switch
（Q901）
Photocoupler
(IC903)
MOSFET
(Q805, Q806)
PWM Control
(IC801)
40
BenQ G2320HDB
16V
5V
Feedback Circuit
16V
ON/OFF
DIM
PID