Panasonic SA-AK66 Service Manual page 13

SCHEMATIC DIAGRAM - 11
POWER CIRCUIT
R505
5.6K
R510
56K
R501
5.6K
R502
56K
1
GND1
2
DGND
3
+9V
4
TO
-9.V
5
MAIN
FAN
CIRCUIT 6
DPL/ST
(CP500) ON
7
8V
SCHEMATIC
8
CD3.3V
DIAGRAM-6
9
SW5V
10
-VP
11
LED9V
12
10V
CP500
1
AGND
2
+15V
3
LOUT
4
TO
ROUT
5
MAIN
COUT/SWOUT
6
CIRCUIT
SROUT
(CP501) ON
7
SLOUT
SCHEMATIC
8
LOCH
DIAGRAM-6
9
/CD
10
DCDET1
R514
11
PCONT
4.7K D504
12
HPSW
CP501
R515
4.7K
D505
D504-D505
RVD1SS133TA
: +B SIGNAL LINE
26 25 24 23 22 21 20 19
R532 56K
C526 15P
R533 56K
C527 15P
R534 56K
C528 15P
R535 56K
C529 15P
R536 56K
C530 15P
C508
470P
R537 56K
C531 15P
R507
4.7K
R508
4.7K
R526 4.7K
R513 4.7K
C521
0.01
C509
0.01 2SD2144STA
POWER CONTROL
Q503,Q505
C513
KTC3199GRTA
0.01
DC DETECT SWITCH
Q503
Q505
((0V)) ((5.22V))
((0V))
((0V))
((0V))
STK470-080
POWER IC
1 2
C523 C580
50V47 50V47
: -B SIGNAL LINE
IC500
18 17 16 15 14 13 12 11 10
R557
120K
R558
150K
R556
220K
R559
180K
R552
2.2
R553
2.2
Q510
((0V))
Q510
SWITCH
((0V))
((0V))
D515
RVD1SS133TA
Q521
((16.4V))
((0V))
Q521
KRA102MTA
SWITCH
((16.2V))
((0V))
Q520
R607
((0V))
150K
IC501
IC501
3 4 5 6 7 8 9 10 11
R595
1.5K
R594
1.5K
C575
50V47
R582
C577
C579
C583
25V330
50V47
0.1
C578
50V100
R592
1000
: MAIN SIGNAL LINE
9 8 7 6 5 4 3 2 1
R580
18K
R581
18K
((0V))
((16.5V))
Q520
KTC3199GRTA
SWITCH
12 13 14 15 16 17 18
C571
50V5 4700P
R579
C572
3.3M
50V5 5600P
D512-D514,
D516,D518,
C573
D520-D522
50V5 5600P
1N5402BM21
15
C574
50V5 4700P
C524
R591
4000
IC500
RSN311W64B-P
POWER IC
Rch
1
+
3 SPEAKER
Lch
+
6 Ohm
2
MAIN CHANNEL
-
4
-
JK503
1
Rch
+
2
SURROUND
-
SPEAKER
3
+
Lch
4
-
5
CENTER
+
(8 Ohm)
SPEAKER
6
-
JK504
E500
C525
0.01 0.01
1
S1
2
S1
3
S2
4
S2
TO
5
GND
TRANS
6
GND
CIRCUIT
7
S2 (CN501) ON
8
SCHEMATIC
S2
9
DIAGRAM-12
S1
10
S1
11
SUB+B
12
VP
13
GND
H501/W501
(8 Ohm)