Panasonic SAHT280 - RECEIVER, Service Manual

Page: 79 / 96

To FL CIRCUIT(CP901)
on SCHEMATIC DIAGRAM-8
To FL CIRCUIT(CP902)
on SCHEMATIC DIAGRAM-8
To FL CIRCUIT(CP903)
on SCHEMATIC DIAGRAM-8
To FL CIRCUIT(CP904)
on SCHEMATIC DIAGRAM-8
1
10 3 2 4 5 6 7 8 9
1
10 3 2 4 5 6 7 8 9
1
8 3 2 4 5 6 7
1
8 3 2 4 5 6 7
1
8 3 2 4 5 6 7
TCE
COM
DI
GND
+B(3)
OV1
S/C
SP
B
SP
A
+B(1)
T.
D
T
VIDEO
B
VIDEO
A
IF
DA
T
A
SD
FM
ST
OV
2
V.
R
F
S-DET
CON
REQM
GND
V.
O
LI
N
RI
N
+B(8)
L
D
OUT
R
OUT
L
OUT
A.GND
R
D
OUT
D
CON
REQS
T.
C
K
COM
CK
COM
DO
RELA
Y
RDS
IN
AF
MUTE
LIMITTER
FL
AC2
FL
AC1
HP
R
HP
L
HP
GND
D
4 5 6 7 1 2 3
11 10 9 8 14 13 12
Vcc
Vss
IC602
NJM2060D
BUFFER AMP
C574
120P
R574
18K
R572
2.2K
R576
2.7K
C576
560P
R571
680
R575
680
C575
16V22
R689
820
R573
2.7K
C573
560P
R690
820
R4 L4
L5
R5
C4
A B C
CN901 CN902 CN903 CN904 CN905
N L M P O J I A B G C E F H K D E F G D C B A B A
C414
16V10
C413
16V10
R420 100K
R419 100K
A B
C591
0.01
C571
16V22
A B
10K
4.7K
10K
4.7K
10K
4.7K
10K
4.7K
10K
4.7K
R623
6.8K
C
R621
6.8K
R622
6.8K
B
A
Q651,652
RVTDTA143XST
RELAY DRIVE CONTROL
Q652 Q651
Q603 Q601 Q602
RELAY DRIVE
Q601-603
RVTDTA143XST
C D
A
D
C
B
Q604
RVTDTA114EST
LIMITER
A
B
C
Q706
2SC3940AQSTA
REGULATOR
Q701
2SD2374PQAU
REGULATOR
Q708
2SB1548PQAU
REGULATOR
Q707
2SA1534AQRTA
REGULATOR
C713
0.01
R725
820
D708
MTZJ16CT
A
C714
25V47
D707
MTZJ27DT
A
C712
50V10
C71
1
0.01
R721
560
R722
12K
R727
330
R726
330
R614
2.2K
R699
2.2K
D618
MTZJ15CT
A
R613
2.2K
R698
2.2K
Q605
RVTDTA114EST
SWITCHING
R615
680
R640
680
R639 100K
D705
MTZJ6R2BT
A
C710
0.01
C715
16V100
R713
39
R714
39
R711
7.5K
C709
16V33
R712
6.8K
R708
1.5K
Q703
Q704
REGULATOR
Q703,704
2SC1740SSTA
C708
0.01
R707
220
R706
1K
R705
4.7K
C707
35V100
L751
100 H
C758
16V100
D C
C
E D
SCHEMATIC DIAGRAM-13
D
-B(1)
-B(2)
R583
1K
C572
16V22
D D
To FL CIRCUIT(CP905)
on SCHEMATIC DIAGRAM-8
D
10K
10K
10K
10K
R578
47K
C592
0.01
C578
0.01
R577
47K
C577
16V22
4.9V
14.4V
-16.2V
5.5V
0V 0V 0V 0V
0V 0V 0V 0V 14.4V
5.5V 13.8V
6.1V
14.4V 31.1V
14.9V 30.8V
15.5V
15.5V
6.1V
6.7V
0V 0V
4.9V
0V
0V 0V 0V
-7.8V
4.5V
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE :FM/ AM SIGNAL LINE
:CENTER SP SIGNAL LINE
-16.2V
-38.9V -27.2V
-27.9V
-31.4V
-16.8V
-16.2V
0V
-7.4V
-31.5V 0V
0V
0V
-27.2V
5.5V
-27.2V
-31.4V
-7.8V
0V 0V
-16.2V
:SUB WOOFER SIGNAL LINE