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12 Block Diagram
12.1. Power Supply Block Diagram
VA1101,VA1102,
D1101
DZ1101,L1101
C1107
AC SOCKET
P1101
F1101
SURGE
RECTIFIER
3
SUPPRESSOR
AND
1
SURGE
4
ABSORBER
IC1150
(SWITCHING IC)
1
Z/C
DRAIN
9
VCC
F/B
7
3
2
D1102
D1109
T1101
POWER
TRANSFORMER
6
12
NP1
5
D1201
NS12-1
11
1
2
NP2
4
3
NS12-2
10
2
9
1
IC1200
(ERROR
VOLTAGE
DET.)
Q1202
2
1
PHOTO
4
COUPLER
2
1
3
HOT
COLD
POWER P.C.B.
IC1301
Q1301
(DC-DC CONVERTER)
(REG.D+3.8V)
D+3.8V
1
VIN
EXT
7
3
G
1
2
D
5
5
FB
CS
8
4
S
6
IP1401
2
1
IC1401
Q1401
(DC-DC CONVERTER)
(REG.X SW+5.8V)
1 VIN
EXT
7
4
G
8
3
7
ON/OFF
2
D
X SW+5.8V
2
S
5
5
FB
CS
8
1
6
QR1401,1402
X SW+12V
47
MAIN P.C.B.
P1201
P1501
D+3.8V
16,17,19
IC1507
(REG.ANA+3.3V)
8
VIN
VOUT
1
ON
H
5
P1201
P1501
X SW+5.8V
2,3,4,5
IC1504
(REG.JC+5V)
7
VIN
VOUT
1
ON
H
5
JC P ON
H
IC1505
(REG.ANA+5V)
1
VIN
VOUT
1
CONT
3
IP1501
P1201
P1501
X SW+12V
2
1
12,13,14,15
Q1501
(DR+12V SWITCH)
5
3
6
2
S
D
7
1
8
G
4
DMR-EH55P9/PC9
Power Supply Block Diagram
DMR-EH55P9 / DMR-EH55PC9
A
B
C
TU7801(+5V)
IC3001(+5V)
IC7501- 7
2
IC4901-
D
E
F
G
H
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