LG HDR676X - Smps Block Diagram

3-21 3-22
4. SMPS Block Diagram
BD101
P1701
P1D01
P104
BR BL
(BK)(WH)
!
14VA
-28V
33VA
3.8VA
PWR CTL
5.3VA
FD(-)
FD(+)
Y CAP
C113
Y CAP
C112
DRIVE & S/W
BLOCK
IC101,D102,R105,
ZD101,ZD103,
R109,C104,C107,
C108,C109, BC101
SNUBER
BLOCK
D101,R104,
C105,C106
NOISE FILTER
BLOCK
V101,C101,C102,
R101,L101
FUSE
F101
12V
5V
FAN
5V REG &
S/W BLOCK
IC156,R156,
C156
12V REG &
S/W BLOCK
IC155,R155,
C155
14V RECTIFIER &
SMOOTHING BLOCK
D124,C123,L123,C133
3.8V RECTIFIER &
SMOOTHING BLOCK
D127,C124,L124,C134
33V RECTIFIER &
SMOOTHING BLOCK
D126,C126,R147,ZD122
5.3V RECTIFIER &
SMOOTHING BLOCK
D128,C125,L125,C135
T101
RECTIFIER &
SMOOTHING BLOCK
D121,FR121,C120,R181,
R191,R131,ZD121
RECTIFIER &
SMOOTHING BLOCK
D122,C122,R122
5V RECTIFIER &
SMOOTHING BLOCK
D125,C121
FEEDBACK
BLOCK
R141,R142,
R143,R144,
R145,R146,
C143
PHOTO COUPLER
IC102
ERROR AMP
IC103
TH0
A
C
B
D
1
C103