AOC 712SI - Electrical Block Diagram

17” LCD Color Monitor AOC 712Si
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5.2 Electrical Block Diagram
5.2.1 Main Board
5.2.2 Inverter/Power Board
Start Circuit: R903, R926
CN902
EMI filter
Bridge
Rectifier
and Filter
PWM
Control IC
Transformer
Over
Voltage
Protect
Rectifier
diodes
AC input
12V
ON/OFF Control
PWM
Control IC
Feedback
Circuit
Output
Circuit
Transformer
MOSFET
Q802、Q803
Lamp
ON/OFF
DIM
PWM
Feedback
Circuit
12V
5V
DC/DC
U2
NEVETEK
U1
24C16
W/B
U6
24C02
DDC
R
G
B
HS
VS
TXD
RXD
SD
A
U3
AIC108
U4
RT9164
Gray levels
Buffer
DC/DC
Converter
Vcom
Adapter 5V
Adapter 12V Inverter
Backlight
12MH
Data driver
Backlight
PWB