HP W19EV Service Manual page 22

19" LCD Color Monitor
6.3.2 Inverter / Power Board
AC inlet filter
Start circuit R938; R904, R931
On/off control
PWM control IC
Dimming control
Rectifier and
filter
Switching circuit
PWM control
IC&MOSFET
Start circuit
Transform
OVP circuit
Push-pull
circuit
22
Rectifier and
filter D908;
D909
To main board
Feedback
circuit
IC902;IC903
LC resonant
Feedback circuit
HP W19EV
12V/5V
12V
Lamp