Lenovo LXM-WL19CH Service Manual page 16

19" LCD Color Monitor
5.2.2 Inverter/Power Board
AC input
EMI filter
Start Circuit: R931、R904、R938
Lamp
Feedback
Circuit
Bridge
Rectifier
and Filter
PWM
Control IC
Output
Circuit
Transformer
Over
Voltage
Rectifier
Transformer
diodes
Feedback
Circuit
MOSFET
PWM
Control IC
16
Lenovo LXM-WL19CH
5V
12V
ON/OFF
ON/OFF
Control
DIM
DIM
CN902