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A
B
1
R102
C107
1K
4.7u50
LINE
INPUT
+
R108
100K
C105
C129
100P
R107
R109
1M
5.6K
2
IC101
-
+
+
14.9V
+
-
0V
0V
CROSSOVER
CROSSOVER
FILTER SW
R104
60Hz
100
ON
OFF
SW101
+
200Hz
C117
4.7u50
3
+
R116
4.7K
R143 330K
R130
1K
C121
+
0.022
R124
D101
R123
R140
68
+
10K
150K
14.9V
IC102
+
-
4
+
(BOTTOM VIEW)
+
-
0V
1.4V
R127
R131
1M
2.2K
R126
220K
6.5V
IC101
:
TL074
Q101-103,702
5
IC102
:
NJM4558D
:
2SC945
IC502
:
UPC1298V
Q503
:
2SC3421(Y)
IC701
:
UPC1237HA
Q504
:
2SC5200(R)
IC901
: TA7815S
Q505
:
2SA1943(R)
IC902
:
TA79015S
Q701
:
2SA733
Q901
: 2SC2001
6
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended parts
(refer to parts list).
indicates safety critical components.
For continued protection against risk of fire, replace only
with same type and rating fuse(s). 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 returned to
the customer.
7
C
D
C507
15P
+
0V
6
3
14
4
2
0.1
+
IC502
R110
8.2K
0V
5
9
8
13
7
-
+
0.6V
+
0V
-
-0.7V
Q503
+
-1.3V
0V
R112
OPT
ADJ
IDLE
C113
C111
C110
RB101
CN101
0.056
0.056
0.056
6
6
5
5
C119
0.02
4
4
VOLUME
C118
47u16
+
R120
33
3
3
Q103
0.3V
0.7V
R137
2
2
22K
1
1
0V
0.3V
R132
LD101
10K
STANDBY
R133
LED
3.3K
0V
Q101
2.0V
R134
15.0V
0.9V
2.2K
R135
Q102
10K
1.1V
46.3V
Q901
15.0V
IC901
D101-103,701
: 1N4148
3 OUT IN
1
D702,901-904,906
:
IN4001
GND
+
22.8V
D905
:
IN4002
2
0V
ZD101
:
RD8.2ES(B)
BD901
:
KBU60D
-15.0V
IC902
3
IN 2
-23.8V
OUT
GND
1
SIGNAL LINE
0V
+
The DC voltage is an actual reading measured with a high
impedance type voltmeter. The measurement value may
vary depending on the measuring instruments used or on
the product.
E
F
Q504,505
Q701,702
FINAL TR.
LIMIT
R520
Q504
10
46.3V
0V
R712
46.3
1/2W
Q702
C512
4.7K
100P
0V
0.6V
+
0V
1
+
12
-0.6V
11
46.3V
+
10
C513
R521
R708
10
100P
0V
1/2W
47K
Q701
Q505
-46.3V
R706 22K
+
+
RELAY
DRIVE
IC701
OVER LOAD
VCC ON
DET.
MUTE
OFFSET
AC OFF
VOL.DET.
DET.
AUTO RECOVERY
LATCH SW
0V
1.7V
0V
R702
R701
0V
56K
12K
0V
+
+
3.5V
R907
CN901
220 1W
BD901
+
RL901
+
P501
F902
250V T 1A
0V
D901
D904
+
D902
D903
F903
250V T 1A
+
2SA733
2SC3421
2SA2001
2SC945
G
H
(Y) TYPE
R524
4.7 1/2W
RL501
CN501
RB501
2
1
1
1
2
2
4
3
3
3
SP-WOOFER
D702
CN902
2
1
CN904
3
+
2
1
(K,P) TYPE
CN902
2
1
T901
NJM4558D
UPC1237HA
TA7815S
Y19-4440-10
I
J
POWER SW
ON
OFF
SW901
2
1
CN903
F901
C902
250V T 1.6A
0.01
F904
250V T 1.6A
C901
0.01
(Y)
: AC110-120V/220-240V
POWER SW
ON
OFF
SW901
2
1
CN903
F901
C902
250V T 3A
0.01
C901
0.01
(K,P)
: AC120V 60Hz
SW-32HT(K)
UPC1298V
TA79015S
SW-32HT
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