I) Power Circuit - Panasonic SA-AK220GCP Service Manual

SA-AK220GCP

17.7. (I) Power Circuit

SCHEMATIC DIAGRAM - 13
POWER CIRCUIT
FAN
1
DC_DET
2
MUTE_H
3
+15V
4
TO
LCH
5
MAIN
RCH
CIRCUIT
6
(CN300) ON
7 A_GND
SCHEMATIC
DIAGRAM-8
8 LO_L
9 LO_R
10
11
T GND
12
CN500
P GND
1
D GND
2
uP GND
3
4
TO
CD8V
5
MAIN
CIRCUIT
6
(CN301) ON
7
SCHEMATIC
DIAGRAM-8
LED 9V
8
MOT10V
9
+9V
10
-9V
11
SW5V
12
CN501
: +B SIGNAL LINE
IC501
RSN35H2A-P
HIC
14 13 12 11 10
C501
0.01
C240
470P
C442
470P
C440
820P
C242
820P
R545
56K
R546
56K
R447 R245
5.6K 5.6K
R448
15K
R246
15K
D502
B0BA01500003
D513
B0AACK000004
Q514
B1AAGC000007
HEADPHONE
MUTING SWITCH
Q507
KTC3199GRTA
10V VOLTAGE REGULATOR
Q506
B1GCCFGA0005
CURRENT LIMITING SWITCH
(SHORT CIRCUIT PROTECTION)
Q508
B1AAKD000009
5V VOLTAGE REGULATOR 15V VOLTAGE REGULATOR
R524
2.2
Q508
C513
25V10
C514
0.01
R531
D508 R532
2.2K
D508
B0BA5R600016 150
: -B SIGNAL LINE : MAIN SIGNAL LINE
IC501
9 8 7 6 5 4 3 2 1
R450
330K
C450
C443
15P
100V10
C441
R250
15P
68K
R449
68K
R451
150K
R445
R247
5.6K
5.6K
1000P
C446
C248
50V1
50V1
R501
10K
Q514
R504
47K
R503
12K
R510
R511
560 2.7K
C508
C507
16V10
16V10
Q504
KTA1046
Q502
CURRENT STABILISER
SWITCH
C506
0.01
Q503
KTC2026
Q503
R521 2.7
R520
C509 R522
2.7
0.01 3.3K
D505 D504
1T3T
B0AACK000004
C510
R523
25V100 470
D504
D507
1T3T
R529
330
62
C444
0.1
C244
0.1
C447
0.1
C246
R251
0.1
R455
150K
10
R255
10
C503
C502 R506
6.3V220 100K
Q513
Q512~Q513
Q512
B1AAGC000007
DC DETECT SWITCH
Q505
KTA1267GRTA
CURRENT CONTROL SWITCH
R505
Q502
47K
KTA1046
VOLTAGE SUPPLY SWITCH
Q501
KTC2026
10V VOLTAGE REGULATOR
R507
R509 R508
330 330 330
D501
Q501
B0BA9R600002
C504
D501
0.01
R512
2.7K
R514
Q505
3.3K
C505
16V100
R516 R515
15 27
C530
0.18
R518 2.7 R517 2.7
R519
2.7
R525
R526 R527
Q504
2.2
2.2 2.2
C511
R528
Q506
0.01
10K
Q507
C512
D509 R530
25V33
1.2K
B0BA9R600002
GND_L
1
-
GND_R
2
-
FULL
OUT_L
RANGE
3
+
SPEAKER
OUT_R
4
+
JK952
1
VCC+
2
VCC-
3
TO
TRANSFORMER
4
CIRCUIT
AC GND
5
(CN950) ON
SCHEMATIC
6
DIAGRAM-12
ACIN
7
SUB B
8
9
SUB+B
GND
H950/
W950
E500