HP W19E Service Manual page 16

19" LCD Color Monitor
6.3.2 Inverter / Power Board
AC inlet filter
Start circuit R903; 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
16
Rectifier and
filter D904;
D905
To main board
Feedback
circuit
IC902;IC903
LC resonant
Feedback circuit
HP W19E
12V /5V
12V
lamp