16
5.2 Power Board
Adapter Board:
Converter Board:
EMI filter
Start Resistor
(R920, R921, R922)
PWM Control
(IC901)
Transformer
AC input
14.5V
Bridge
Rectifier
and Filter
Feedback
Circuit
Rectifier
diodes
Photo coupler
(IC902)
5V
5V1
D801
LED
(CN804)
IC LED DRIVER
MP3389EF
(U801)
14.5V
DIM
On/Off
L801
