Block Diagram; Power Supply Block Diagram - Panasonic DMR-EH59GC Service Manual

11 Block Diagram

11.1. Power Supply Block Diagram

VA1110,L1120,L1121 D1140,C1143
AC INLET
P1101
F1101
SURGE RECTIFIER
SUPPRESSOR
AND
SURGE
ABSORBER
IC1150
(SWITCHING IC)
VIN 7
2 F/B 9
5
Z/C GND VCC
1 3 4
T1150
POWER
SWITCHING
TRANSFORMER
D1270
1
2
3
P1 G
6 7
G
8
P2
4
NS12
11
B1
2
B2 NS12
1
12
Q1200
(FEEDBACK)
4 1
3 2
2
1 3
IC1200
(ERROR VOLTAGE DET.)
HOT COLD
POWER P.C.B.
X SW+3.8V
X SW+5.8V
Q1600
(REG.X SW+5.8V)
1 5
S D
2 FET 6
G
IC1601
3 7
(DC/DC CONVERTER)
8
Current
1 Vin 8 4
Sense
FET
Gate 7
Drive
2 V5 GND 6
IP1501
1
IC7401
X SW+12V P1102 P1501
(REG.PS+11.6V)
9,10,11,12
1 VIN VOUT
H :ON GND
2 5
Q1509
(DR+12V OUT)
1
S D
2 FET 5
G
3 6
7
8
4
47
MAIN P.C.B.
P1102 P1501
X SW+3.8V
14,15
P1102 P1501
1,2,3
TIMER +5V
X SW+3.3V
Q1502
(X SW+3.3V OUT)
FROM
DI P ON H
TIMER
IC7501- 44
SECTION
T7501
DISPLAY HEATER
POWER SWITCHING
IP7501 TRANSFORMER
UNREG +38V
2 1 2 1 7
D7506
3 PS+11.6V IC3001- 46 , IC4009- 8 , IC4012-
FROM
PWR SAVE H :ON
TIMER
IC7501- 79
SECTION
QR7401
( :ON)
H
DR+12V
FROM
DR P ON H
TIMER
IC7501- 42
SECTION
QR1501
( H :ON)
DMR-EH59GA/GC/GN
Power Supply Block Diagram (1/2)
A
B
IC7503- 8
IC7501- 16
C
D
TO
U/V
TUNER
8
E
F