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A
IC101
IC102,103
1
Rch
R102
SW101-1
LINE1
39K
R101
39K
2
LINE
J1
1-2 SW
SW101-2
R106
LINE2
39K
R105
39K
Lch
J2
3
4
2SC1815
BA4558
5
B
C
: BA5412S or BA5415
Q201~203
: BA4558
D201
R112
C114
39K
1µ50
+
C104
68P
5.3V
IC103
(1/2)
5.3V
2
-
C106
C110
0.047
0.047
1
6
+
-
3
+
8
5.3V
5
5.3V
+
5.3V
10.6V
R151
10K
+
5.3V
5.3V
3
IC103
+
(2/2)
5
+
C105
C109
0.047
0.047
7
2
-
+
6
-
5.3V
4
5.3V
C113
R123
R111 39K
1µ50
1K
C103 68P
+
SIGNAL LINE
GND LINE
+B LINE
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended parts (refer
to parts list).
indicates safety critical components. To reduce
the risk of electric shock, leakage-current or resistance
measurements shall be carried out (exposed parts are
acceptably insulated from the supply circuit) before the appliance
is retuned to the customer.
D
: 2SC1815
: 1N4148
R124
1K
Rch
BASS
SW
IC102
5.3V
(1/2)
SW102-1
OFF
C112
R126
1µ50
1K
7
+
ON
8
15.7V
R150
+
1K 1/4W
IC102
(2/2)
R125
C111
SW102-2
1µ50
1K
1
ON
+
4
OFF
5.3V
Lch
BASS
SW
Q201
POWER SW
SW103
R232
10K
R251
4.7K
E
IC101
T.S.D
+
-
BS
0V
8.0V
0.6V
11.8V
0.6V
13.2V
14.1V
15.7V
C210
+
100µ10
+
R210
C212
C211
+
+
39K
0.01
0.01
+
0V
+
0V
R234
1K
0V
+
Q202
0V
R202
C202
1K
1µ50
+
R235
1K
0V
0.6V
0V
Q203
D201
+
•
DC voltages are as measured with a high
impedance voltmeter. Values may vary
slightly due to variations between
individual instruments or/and units.
F
G
+
+
-
BS
13.2V
C209
7.8V
100µ10
+
R209
39K
+
R-SPK
L-SPK
15.7V
DC-JK
C300
0.022
(NORMAL TYPE)
AS-3 (J/K)
AS-3
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