40" Smps; 40" Inverter - Samsung LE40R88BD Service Manual

13-3-7 40" SMPS

AC Input
90-
EMI Filter
264Vac
PWM
Control
Vcc
VCC
On/Off

13-3-8 40" INVERTER

P
F
C
HV
DRIVE
Photo-
UVLO
Coupler
ON/OFF
RFC
Control
PWM
Control
Vcc
Stand-by
Control
PRIMARY
SWITCHING
CONTROLLER
P_DIM
Rectifier
Rectifier
Transformer
Rectifier
Switching
FET
Feed-back
Protection
Transformer
Rectifier
Feedback
Protection
TRANSFORMER
Resonant
Voltage /
Current /
Detection
Voltage
Current
Controller
Controller
13 Circuit Descriptions
13.5V / 1.0A
Regulator
12.0V / 1.2A
5.4V / 3.4A
5Vsb
0.4A
SECONDARY
2 nd
Jin
Balance
Board
LAMP
Detection
PROTECTION
C C
C C
F F
L L
13-9