Smps Circuit Block Diagram - Hitachi DV-DS163E Service Manual

1 2
B-2 SMPS Circuit Block Diagram
F
BD101
A
TH01
B
C
E
D
!
NOISE FILTER
BLOCK
(V101,C101,C102,
D
R101,L102)
!
FUSE
(F101)
C
!
Y CAP
(C112)
B
BR BL
!
(BK)(WH)
A
1 2
3
!
3
C103
SNUBER
BLOCK
(D101,R104,
C105,C106)
6
1
3
DRIVE & SW BLOCK
7
4
(IC101,D102,R105,
7
ZD101,ZD103,
R109,C104,C107,
5
C108,C109, BC101)
6
9
!
PHOTO COUPLER
Y CAP
(C113)
3
4 5
RECTIFIER &
22
SMOOTHING BLOCK
(D121,FR121,C120,R181,
21 R191,R131,ZD121)
20
RECTIFIER &
SMOOTHING BLOCK
19 (D122,C122,R122)
5V RECTIFIER &
SMOOTHING BLOCK
(D125,C121)
18
17
14V RECTIFIER &
T101
SMOOTHING BLOCK
(D124,C123,L123,C133)
16
3.8V RECTIFIER &
SMOOTHING BLOCK
(D127,C124,L124,C134)
15
14 33V RECTIFIER &
SMOOTHING BLOCK
(D126,C126,R147)
13
5.3V RECTIFIER &
SMOOTHING BLOCK
12 (D128,C125,L125,C135)
FEEDBACK
(IC102)
BLOCK
(R141,R142,
R143,R144,
R145,R146,
ERROR AMP
C143)
(IC103)
4 5
B - 2
6 7
To I/O
(P1701)
FD(+)
FD(-)
-28V
14VA
3.8VA
33VA
5.3VA
PWR_CTL_H
To DVD/HDD
5V REG &
(P1D01)
SW BLOCK
5V
(IC156,R156,
C156)
12V
12V REG &
To FAN MOTOR
(P104)
SW BLOCK
(IC155,R155,
FAN
C155)
6 7
8
F
E
D
C
B
A
8