Block Diagram; Power Supply Block Diagram - Panasonic DMR-EZ28P Service Manual

11 Block Diagram

11.1. Power Supply Block Diagram

D1101
VA1101,L1101
C1107
AC SOCKET
P1101
F1101
SURGE
RECTIFIER
3
SUPPRESSOR
AND
SURGE
4
ABSORBER
IC1120
(SWITCHING IC)
1 Z/C DRAIN 5
VCC F/B
4 3 2
D1120
T1101
POWER
1
TRANSFORMER
P1 N31
6 7
N11
8
P2 N63
4 9
B1 N61
3 10
B2 N64
2 11
N62
12
IC1200
(SHUNT REG.)
Q1200
2
1
PHOTO
4
COUPLER
2 1 3
HOT COLD
IP1210
2 1
IC1320
(REG.ANA+3.3V)
8 VIN
IC1260
(REG.DR+5V)
DR P ON H
VC 1 IC7501- 71
2 VIN
VOUT 4
IC1340
(REG.D+5V)
2 VIN
(Audio Section)
IC4001
(REG.AU+9V)
AU+9V
5 VIN VOUT 4 IC3001- 55
ON H
1
(Timer Section)
T7501
Q7503
(POWER TRANS.)
( :ON)
L
1 7
QR7503
(P SAVE L :OFF)
P SAVE L
IC7501- 75
X SW+12V
IC7591- 8
35
X SW+3.2V
VOUT 1
ON H
5
DI P ON DL2 H
IC7501- 98
X SW+5.8V
IC1330
(REG.X SW+5.2V)
1 VIN
X SW+5.2V
VOUT 5
3 CONT
D5V P ON
VOUT 4
VC
1
D5V P ON H
IC7501- 7
DI P ON H
IC7501- 23
UNREG38V
DI P ON
DMR-EZ28P/PC
Power Supply Block Diagram
DMR-EZ28P / DMR-EZ28PC
A
ANA+3.3V
B
C
D
H
E
D+5V
F
DR+5V
G
X SW+12V
H
I
H
J