Panasonic SA-AK78 - Schematic Diagram-19

IC502
RSN35H1
POWER AMP(CENTER)
14 13 12 11 10 9 8 7 6 5 4 3 2 1
MUTE AC LATCH
61
42
7 5
38
2
1
5 6
3
4
LOW
HIGHT
MID
Lch
LOW
HIGHT
MID
Rch
SPEAKERS
(6 )
SCHEMATIC DIAGRAM-19
N N
12
13 24567891011
12
13 24567891011
12
2
1
3
4
5
6
7
8
9
10
11
IC503
STK470-050
REGULATOR
H502
D566
D565
D568
D567
D570
1D3E
RLY501 C571
0.1
R582
47
R583
47
D571
RVD1SS133TA
C573
25V330
R587
10K
C579
16V47
C581
50V4.7
D579
MTZJ9R1BTA
C575
0.01
R578
1.5K
C576
25V100
R579
3.3K
D572
1D3E
C572
1000P
R573
3.9K
R571 47K
C574
50V47
D565-568
1N5402BM21
D569
1D3E
D562
D561
D563
D564
D561-564
1N5402BM21
CN505
CP505
R552
22K
R553
10K
C520
0.1
R551
330K
D505
MTZJ16ATA
C534
100V10
R554
2.7K
R555
2.7K
R556
2.7K
C569
4700
C568
5600
C567
5600
C566
4700
C565
0.01
E500
Rch
Lch
SURROUND
SPEAKERS(8
)
CENTER
SPEAKERS
(8
)
JK503
JK502
EA B FCD
C540
50V4.7
R561
22K
R521
18K
R522
47K
Q504
KTC3199GRTA
RELAY DRIVE
R566
39
R565
39
D507 RVD1SS133TA
R564
180
R563
180
D506
RVD1SS133TA
RLY504
RLY505
C539
50V4.7
R548
56K
C532
15P
R558
120K
R557
100K
R549
56K
C533
15P
R550
56K
C529
1000P
C530
1000P
R547
5.6K
R545
5.6K
R546
56K
C531
100V10
C537
0.047
R560
10
R559
10
C538
0.047
JK501
R586
1.5K
6 4 3
125
STB
1 2 3 4 5 6 7 8 9 10 11 12 13 14
R570
39
R572
15K
R580
820K
C580
1000P
R584
1.5K
R581
4.7K
D573
RVD1SS133TA
D580
MTZJ18ATA
Q576
2SC3940AQSTA
STABLIZER
C577
0.01
C570
0.1
R562
39
64.6
V
-32.1V
14.8V
-7.7V
64.6V
31.6V
-32.1V
64.6V
-65V
31.6V
-32.1V
:CD SIGNAL LINE :SURROUND/HIGHT SP DRIVE SIGNAL LINE
:SUB WOOFER/FRONT LOW SP DRIVE SIGNAL LINE:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
0V 0V -15.3V -4.2V 0V -15V 0V -32.1V 31.6V 0V
14V
14.7V
14.7V
14.2V
0V
((14.8V))
0V
0V
0V
0V
0.8V
((0V))
14.4V
14.8V
14.7V
14.3V
13.2V
13.9V
13.8V
13.3V
13.6V
14.2V
14.2V
13.5V 3.2V
0V
0V
3.2V
3.3V
0.1V
3.3V
0.1V
28.6V16V14.8V7.7V-7.7V-8.3V-29V
64.6V
28.6
V
29.9V
0V
Q576
45
SA-AK78