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SCHEMATIC DIAGRAM-16
L
POWER AMP CIRCUIT
IC500
RSN311W64A-P
POWER AMP(HIGH,MID,LOW)
26
25
24
23
22
0V
0V
0V
0V
R502
4.7K
C500
470P
R501 4.7K
C510
470P
C514
470P
C508
470P
R507
R513
4.7K
4.7K
R508
R526
4.7K
4.7K
A
B
C
D
C509
0.01
CP501
GND1
1
+B(3)
2
H.Lch IN
3
H.Rch IN
4
E
To
MAIN (DSC)
LOW Rch IN
5
CIRCUIT(CN300)
GND1
6
on SCHEMATIC
7
DIAGRAM-11
LOW Lch IN
8
/CD
9
DC DET
10
P.CONT
11
HP SW
12
CP500
P.GND
1
D.GND
2
+B(4)
3
-B(1)
4
E
FAN1
To
MAIN (DSC)
5
FAN2
CIRCUIT(CN301)
6
+B(1)
on SCHEMATIC
7
+B(2)
DIAGRAM-11
8
+B(6)
9
-VP
10
11
LED9V
12
+B(5)
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
21
20
19
18
17
16
15
-28.5V
60.2V
0V
0V
-30V
29.5V
R505
3.3K
R532
56K
C526
15P R555
R506
3.3K
R533
56K
C527
15P
R560
R534
56K
C528
15P R557
R535
56K
C529
15P R558
R536
56K
C530
15P R556
R537
56K
C531
15P
R559
5V
Q505
5V
0V
0V
Q503
E
F
Q503,505
KTC3199GRTA
OVER LOAD DET.
Q520
KTC3199GRTA
POWER SUPPLY CONT.
0V
R607A
150K
14.3V
Q521
KRA102MTA
A
POWER SUPPLY
B
D
C
A
B
C
D
E
D501
D502
F
1D3E
RL1N4003S-P
RL1N4003S-P
14
13
12
11
10
9
8
-0.2V
6V
0V
0V
0.2V
0V
120K
120K
120K
150K
220K
180K
C538
50V1
E
14.3V
C556
50V1
B
0V
0V
Q521
C542
50V1
D515
F
RVD1SS133TA
Q510
2SD2144STA
SWITCHING
R554
0.2V
10K
0V
C551
50V1
A
D503
:FRONT LOW SP DRIVE SIGNAL LINE
:FRONT MID/HIGHT SP DRIVE SIGNAL LINE
7
6
5
4
3
2
1
-29.7V
29.1V
0V
-60.7V
60V
0V
R552
2.2
R553
2.2
R511
1M
R510
R525
C517
14.8V
18K
18K
50V1
8.4V
Q511
8.8V
C504
1800P
R562
100K
C548
C555
14.8V
1800P
1800P
6.5V
Q518
C557
5.9V
R566
0.01
20K
Q511,514,517,518
KTC3199GRTA
R542
1M
H.P.F./L.P.F.
R545
R548
C518
14.8V
18K
18K
50V1
8.6V
Q514
8.8V
C520
1800P
R573
100K
C580
C581
14.8V
1800P
1800P
6.5V
Q517
C582
6V
R530
0.01
20K
14.8V
14.5V
7.7V
-7.9V
3.3V
5V
-31V
10V
0V
A
B
C
D
E
F
A
B
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