Samsung LE37S81BX - 40, 46 IP Board

13 Circuit Descriptions
13-7
13-3-7 40, 46" IP Board
13-3-8 40, 46" IP Board
Power
Input
(AC90V
~264V)
EMI Filter
Rectifier
Rectifier
Feedback
Protection
Feedback
Protection
Feedback
Protection
FWM
CONTROLLER
Stand-by
CONTROLLER
(Switch)
FWM
CONTROLLER
VCC
On/Off
Opto-
coupler
13.0V / 0.4A
12.0V / 2.5A
5.4V / 43.5A
6.2V / 0.4A
Rectifier
Rectifier
Rectifier
SWITCHING TRANSFORMER
TRANSFORMER
RFC
(switching,
Inductor)
Power
Input
(380V)
2
nd
Resonant
Balance
Board
Voltage /
Current /
LAMP /
Detection
LAMP
LAMP
SWITCHING
Feedback
CONTROLLER
Opto-Coupler
UVLO
Gate
DRIVE
Opto-Coupler /
Pulse-
Transformer
ON/OFF
DIM
TRANSFORMER