LG XB12 Service Manual page 38

BLOCK DIAGRAM
1. SMPS BLOCK DIAGRAM
RECTIFICATION
SMOOTHING
CIRCUIT
ZNR &
FILTER
AC INPUT
LGE Internal Use Only
MAIN&AMP
PWM IC
- 3-25 -
T
R
3.3V (278R33)
A
9V (78R09)
N
S
5V(P-SENS)
5.6VA (KIA278R05)
FEED BACK
- 3-26 -
P7102
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