AOC E2050SN - 5 Block Diagram; Main Board

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5.2 Power Board
14.5V
EMI filter
Start Resistor
(R908,R911)
PWM Control
LD7576AGR
（U901)
Bridge
Rectifier
and Filter
Rectifier
diodes
Transformer
(T901)
Feedback
Circuit
Regulator
(IC903)
5V
Photo coupler
(U902)
Power Switch
(Q901)
ON/OFF
Feedback
Circuit
Transformer
(Q801)
MOSFET
(R804, L801)
Lamp
Output
Circuit
PWM Control
OZ9998BGN
(U801)
14.5V
DIM