Power Supply Circuit - Panasonic SA-G90 Service Manual

SCHEMATIC DIAGRAM-16
G
MAIN CIRCUIT
C
D
B
C
A
B
A
C691 C701
0.01 0.01
W752
D
3
C
2
1
1
H
2
3
E
4
5
F
6
7
G
8
9
10
B
11
A
12
R730
5.6
FAN MOTOR
CP771
M
A
1
B
2
B
To SURROUND
CIRCUIT(CN702)
on SCHEMATIC
DIAGRAM-5
:POSITIVE VOLTAGE LINE
:FM/ AM SIGNAL LINE
:CENTER SP SIGNAL LINE
SPEAKER
:SURROUND SP SIGNAL LINE
JK603
Lch
SURROUND SPEAKERS
Rch
JK601
Lch
FRONT SPEAKER(B)
Rch
CENTER SPEAKER
JK602
Lch
FRONT SPEAKER(A)
Rch
H

POWER SUPPLY CIRCUIT

E601
Q752
2SC3940AQSTA
REGULATOR
CN752
6V 9.5V
3
2
6.6V
1
POWER TRANSFORMER
I
CIRCUIT
W701
1
F4 8A
2
AC41.2V
3
F3 8A
AC76V
4
5
6
7
AC33.4V
8
9
10
11
AC4.8V
12
F5 1.6A
AC8.4V
C741
0.1
C742
W702 2200
+B(4)
3
+B(4)
2
GND
1
D741-744
1SR35400V
6V
D751-754
1SR35400V
D
9.5V
6.6V
G
6.6V
S
C752
0.01
Q753
2SK2880CTA
STABILIZER AC
12.3V
T701
AC IN/OUT
J
CIRCUIT
R799
22
RL751
4
T751
3
R751
3.3M
0V
4.9V 4.7K
10K
Q751
RVTDTC143ZST
RELAY DRIVE
F1 8A
CN751
1
C751
2
1000P
3
W1 W2 W3
JK792
AC OUTLET
(SWITCHED)
L701 JK791
1
2
AC IN
(120V 60Hz)