ViewSonic VSXXXXX Flat Panel Television User Manual


 
34
7.2 Power Board
DIM
EMI filter
Start Circuit: R904, R905,R906
PWM Control
IC LD7576
Transformer
AC input
16V
ON/OFF
Control
Feedback
Circuit
Transformer
MOSFET
Lamp
ON/OFF
5V
Bridge
Rectifier
and Filter
Feedback
Circuit
Rectifier
diodes
CN902
Output
Circuit
PWM Control
Over Voltage