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Q Q
3 7 6 3 1 5 1 5 0
3-7. POWER BLOCK DIAGRAM (3/3)
SWITCHING REGULATOR(POWER BLOCK)
F101
T3.15A/250V
D101-104
L
1
AC IN
N
2
CN101
L101,102
AC INLET
1
4
IC101
5
SWITCHING
7
6
PC101(2/2)
PHOTO COUPLER
T E
L
1 3 9 4 2 2 9 6 5 1 3
w w w
.
http://www.xiaoyu163.com
T101
POWER
Q303
D301
L301
TRANSFORMER
12V REG
IC301
D401
SHUNT REG
D451
L103
PC101(1/2)
L401
PHOTO
D501
L501
COUPLER
VR401
D601
IC401
SHUNT REG
Q501
SW 3.3V
REG
IC501
SHUNT REG
VR501
UNSW 3.3V
REG
IC502
UNSW3.3V REG
x
a o
u 1 6 3
y
i
3-13
http://www.xiaoyu163.com
8
P301 1A
Q301
CN4
TO
SW 12V REG
SW12V
1
DVD
SW5V
4
Q302
IC402
5V REG
1
2
4
CN3
8
SW12V
UNSW12V
10
P401 2A
5
UNSW6.0V
6
TO
Q451
AV-094 BOARD
XP_FILE
SWITCH
13
P501 2.5A
SW3.3V
4
2
UNSW3.3V
12
USW-8V
1
UNSW12V
IC503
5
1
VIN
SW2.5V
VOUT
2
4
6
SW2.5V REG
TO
4
UNSW3.3V
RD-50 BOARD
9
SW3.3V
P601 1A
L601
12
P-CCONT
14
CN2
Q
Q
3
7
6
3
1
.
2
4
9
9
8
5
1
5
0
8
9
2
4
9
m
c o
3-14
RDR-GXD500
2
9
9
8
2
9
9
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