Panasonic DMR-EZ28P

11 Block Diagram
11.1. Power Supply Block Diagram
H
IC7501- 71
DR P ON
IC1200
2
IP1210
1
B
H
A
D
I
G
X SW+3.2VP1
D1120
31
2
2
1
4
3
1
4
3
VC
VOUT
IC1260
(REG.DR+5V)
N31
76
N11
8
P2 N63
94
B1 N61
103
B2 N64
112
N62
12
TRANSFORMER
POWER
T1101
F/B
2
(SHUNT REG.)
VIN
1
4
2
COLDHOT
Q1200
COUPLER
PHOTO
(SWITCHING IC)
IC1120
VCC
DRAINZ/C 5
4
1
RECTIFIER
C1107
D1101
VA1101,L1101
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
F1101
P1101
AC SOCKET
DMR-EZ28P/PC
Power Supply Block Diagram
H
H
ON
(REG.ANA+3.3V)
ANA+3.3V
8
5
1VIN VOUT
IC1320
IC7501-
3 CONT
VC
1 VIN
IC1330
5
(REG.X SW+5.2V)
X SW+5.2V
E
VOUT
D5V P ON
7
IC7501-
98
7
(POWER TRANS.)
T7501
1
(REG.D+5V)
IC1340
2
1
4VIN VOUT
(Timer Section)
D+5V
UNREG38V
X SW+12V
X SW+12V
DR+5V
IC7591- 8
P SAVE L
IC7501- 75
F
X SW+5.8V
H
DI P ON DL2
C
QR7503
(P SAVE L :OFF)
L
Q7503
( :ON)
H
D5V P ON
H
H
55
(Audio Section)
IC7501-
ON
IC3001-VOUTVIN5
1
4
(REG.AU+9V)
IC4001
DI P ON
23
AU+9V
H
DI P ON
J
DMR-EZ28P / DMR -EZ28 PC
35