19" LCD Color Monitor COMPAQ W19Q
16
6.3.2 Inverter / Power Board
AC inlet
filter
Rectifier and
filter
Start circuit R903; R904, R931
Transform
Switching circuit
PWM control
IC&MOSFET
Rectifier and
filter D904;
D905
Feedback
circuit
IC902;IC903
12V /5V
Start circuit
On/off control
PWM control IC
Push-pull
circuit
LC resonant
lamp
Dimming control
Feedback circuit
To main board
12V
OVP circuit
