Philips 227E3LHSU/01 - Power Board


17
Meridian 3
5.2 Power Board
EMI filter
PWM Control
LD7750RGR
(IC901)
Transformer
(T901)
AC input
16V
5V
Bridge
Rectifier and
Filter
Feedback Circuit
Rectifier
Diodes
Photocoupler
(IC902)

ENA
Feedback Circuit
LED Bar
Boost Circuit
12V
OVP Circuit
Setup-up Controller
TA9690GN
(IC801)
DIM
Start Resistor
(R905, R908, R909)
Q901