Power Circuit - Panasonic SA-PM21PC Service Manual

SA-PM21PC

18.5. Power Circuit

SCHEMATIC DIAGRAM-10
POWER CIRCUIT
CN501A
LOW L+
8
LOW L-
7
LOW R-
TO 6
LOW R+
SPEAKER
5
HI_R
TERMINAL
4
CIRCUIT
GND1(HI-R GND)
3
(CN501B) ON
HI_L
2
SCHEMATIC
GND1(HI-L GND)
1
DIAGRAM-11
CN508B
HI_LEFT
1
AGND
2
TO
HI_RIGHT
3
SPEAKER
A 9V
TERMINAL 4
TNR_GND
CIRCUIT
5
LOW_L
(CN508A) ON
6
SCHEMATIC AGND
7
DIAGRAM-11
LOW_R
8
A 9V
9
MUTEB
10
MOTOR_GND
11
MOTOR_10V
12
PCONT_2
13
CN503B
VREF-
1
D5V
2
TO
CD_DGND
SPEAKER 3
9V_GND
TERMINAL
4
HALT
CIRCUIT
5
(CN503A) ON PCONT_1
6
SCHEMATIC
SYS6V
7
DIAGRAM-11
CD_7.5V
8
PGND
9
R350 2.2K
1 2
C374
50V100
FP352 5A
K5G502A00039
IC500
R380
2.2K
AN17808B
POWER AMP IC
D380
B0AACK000004
1 2
D580
B0AACK000004
R580
5.6K
C551
50V1
R550
R552
3.3K
10K
R551
C550
1K 470P
R570
3.3K
C571
50V1
R571 C570
1K 470P
D582
B0AACK000004
MOTOR_10V
Q505,Q506
KTC32030YTA
REGULATOR
Q505 Q506
C515 C514
0.01 0.01
C542
C541
16V22
16V22
SYS6V
PCONT_1
HALT
: -B SIGNAL LINE
: +B SIGNAL LINE
3 4 5 6 7 8 9 10
C373 C351
470P 470P
C372 1000P C352 1000P
3 4 5 6 7 8 9 10
C580 C582
35V100 50V1
R572
10K
C581 R581
16V470 22K
R582
1K
C586
16V10
Q530
2SD0592ARA
D513
B0EAKW000117
SWITCH
Q530
R515
C530
1.5K
0.01
R514
Q501,Q504
1.5K
B1AACF000063
SWITCH
C512
1 2 3 4 5 6 8
7
WH505A/
JW505A
TO
TRANSFORMER
CIRCUIT (CN505B)
ON SCHEMATIC
DIAGRAM-11
60
: MAIN SIGNAL LINE
IC300
AN17831A
POWER AMP IC
11 12
C368
R381
16V22
47K
FP552 2A
K5G202A00025
11 12
R586
47K
Q500
Q503
KRA110MTA
B1BCCG000002
CURRENT LIMITTING
STABILIZER
R503
R502
R501
C507
R505
C510 0.01 100K
25V10
Q500
R504
180
Q501
Q504
R511
220
C502
R510 R506
25V10
220 1.8K
C521
C523
D502 D504
0.1
0.1
0.1
C522
C524
D501 D505
0.1 0.1
D501 D502 D504 D505
B0EAMM000038
LOW R+
LOW R-
LOW L-
LOW L+
VCC
HI_R
HI_L
VCC
1.2
1.2
1.2
C501
25V6800