Panasonic SA-PM08 - Power Amplifier Circuit Diagram; Power Amplifier Stages and Motor Drivers

8
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
IC301
M5228FPE1
BUFFER AMP
C282
47P
R392
56K
R390
10K
C301
25V10
R402
1.5K
C287
47P
R393
56K
R391
10K
891011121314
7654321
Vcc
Vss
AB
C911
47P
C296
25V10
R401
1.5K
R963
100
R962
100
R904
4.7K
R903
4.7K
D903
1SS355TE17
D902
1SS355TE17
C280
0.1
A
B
C
R575
68K
D506
1SS355TE17
R576
4.7K
R579
27K
R532
10K
C508
50V4.7
R530
220K
D507
1SS355TE17
Q509
2SA1162GRT5T
SWITCHING
(POWER DET.)
Q510
KRC111STA
SWITCHING
(POWER DET.)
D901
1SS355TE17
C910
50V4.7
CN901B
CN902B
R919
12K
R917
3.3K
C916
3300P
R921
6.8K
R924
4.7K
C919
0.018
C902
0.1
C905
0.1
R910
4.7K
C909
470P
R912
39K
R915
15K
R914
15K
C913
0.47
C914
25V10
R927
2.2K
C918
0.22
C908
470P
C906
0.047
R909
15K
R925
120K
R901
47K
R918
12K
R916
3.3K
A
B
C
C915
3300P
R920
6.8K
R922
4.7K
C917
0.018
C901
0.1
C903
0.1
R908
4.7K
R911
39K
C907
470P
R913
15K
C912
0.47
Q901-903
2SC1740SLNST
FILTER AMP
Q901
Q902
Q903
C904
0.22
R902
47K
1
2
M
R757
5.6K
R759
4.7K
R758
10K
D750,751
MA704ATX
D751 D750
R756
100
R755
220K
C751
6.3V100
R751
18
R754
10K
R753
820K
R750
56K
C750
6.3V220
R760
56K
R752
820K
C752
0.1
R761
10K
C753
16V33
Q750-752
2SC2712GRT5T
MOTOR DRIVE
Q752
Q753
Q753
2SB621ARTA
MOTOR DRIVE
Q750
CN750
FAN MOTOR
SCHEMATIC DIAGRAM - 20
POWER AMP CIRCUIT
J
R923
4.7K
R907
4.7K
R906
4.7K
R905
4.7K
R926
33K
C288
0.1
Q751
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
:AUDIO SIGNAL LINE
:SURROUND SP. DRIVE SIGNAL LINE
:CENTER SP. DRIVE SIGNAL LINE
0V 0V 0V - 7.7V 0V 0V
0V 0V 0V 7.7V 0V 0V
- 7.7V
7.7V
7.7V
- 0.7V
0V
7.7V
- 0.7V
0V
7.7V
- 0.7V
0V
7.7V - 3.5V
7.5V
- 3.5V
3V
0V
0V
8.9V
0V
9V
FAN ON:0V
FAN ON:8.7V
0V
8.9V
FAN ON:0V
0V
3V
9V