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A
B
1
IC4
2
ISO
IC4(1/4)
CN4
R1
C2
1K
4.7u50
3.4V
L
4
+
3.4V
C3
100u25
3
+
INPUT
C53
100u25
2
+
3.4V
R51
C52
1K
4.7u50
3.4V
R
1
+
IC4(4/4)
LAMP/
Q1
0.7V
3
LED
DRV
Q2
0.7V
1.4V
R81
R82
L
H: ON
P. CON
3
10K
4.7K
BATT
2
+B
GND
1
CN15
G1
R86
10K
4
10.0V
0V
Q6
C89
33u50
C85
1000u16
5
IC1
: NJM4580MD
IC2,3
: NJM2068MD
IC4
: NJM2060M
IC5
: UPC4570G2
6
2SC1741A(R)
DTA114ES
DTC114ES
2SC2060
B
C
E
B
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended
7
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 returned to the customer.
C
D
+B
+B
12.6V
C4
R203 1.5K
22u25
3.4V
IC4(2/4)
+
3.4V
10
4
IC5(1/2)
C5
R202
8
12
10u50
R205
5.0V
9
14
1.5K
13
+
4.7K
R201
R204
4.0V
1.5K
1.5K
3.4V
3.4V
R251
R254
1.5K
1.5K
IC4(3/4)
2
R252
6
1
7
1.5K
3
5
3.4V
3.4V
11
R253 1.5K
0V
3.3V
C97 10u50
2.7V
+
C96 220u10
+
Q201
Q202
12.6V
+B
Q3
D2
14.4V
+B
+B
13.5V
14.4V
C84
R83
Q4
47u16
2.2K
14.4V
+
14.2V
Q251
Q252
C88
0V
330u25
Q5
+
14.4V
10K
R87
10K
47K
13.6V
D7
R88
120K
8.9V
R90
Q7
3.8K
0V
+
13.6V
5.0V
12.6V
+B
+
IC5(2/2)
IC1(1/2)
C55
R255
3.4V
1/2 VCC
10u50
4.7K
4.0V
5
8
+
7
3.4V
6
C54
22u25
3.4V
+
Q1 : 2SC4640(T.U)
Q5
: DTC114ES
D1,2
Q2 : 2SC1741A(R)
Q6,7
: 2SA1782(T.U)
D3
Q3 : 2SC2060
Q8-12
: 2SC3327-A
D4-6
Q4 : DTA114ES
Q201-205,251-255
: 2SC2712(GR)
D7
NJM2068MD
UPC4570G2
2SC2712(GR)
B
5
8
E
C
E
4
C
1
E
F
LAMP4
(GR)
EQ
SW2
ON
B
D
R4 10K
R54 10K
GR
R5 100K
R55 100K
R3 10K
R53 10K
OR
CD14A
CN14
12.6V
EQ AMP
C11
8
3
22u25
1
2
+
3.4V
R93
Q203
Q204
Q205
1.5K
+B
Q253
Q254
Q255
C98
22u25
+
EQ AMP
C61
6
22u25
7
5
+
3.4V
4
0V
+B
: DSK10C-ET1
LED1-5 : AY3802K
SIGNAL LINE
: MTZJ4.3A
LED6,7 : PY3822K
GND LINE
: 1SS133
B LINE
+B
: MTZJ5.1B
NJM2060M
8
14
7
1
•DC voltages are as measured with a high impedance voltmeter.
Values may vary slightly due to variations between individual
instruments or/and units.
G
H
LAMP2
LAMP3
LAMP1
(OR)
(GR)
(OR)
A
C
E
SW3
LAMP
C15 2200P
+B
12.6V
R11 1.5K
+B
C16
8
3.4V
2
C12
C13
C14
22u25
1
1u50
0.1u50
1u50
3
+
+
+
+
3.4V
3.4V
IC2(1/2)
R10
BUFF
10K
Q8
0V
R60
Q9
10K
BUFF
C62
C63
C64
IC2(2/2)
C66
1u50
0.1u50
1u50
5
4
7
22u25
+
+
+
6
3.4V
+
Q8,9
3.4V
R61 1.5K
3.4V
HPF SW
C65 2200P
3.6V
C93
C92
0.47u50
12.6V
470P
+B
+
R96
3.4V
IC3(1/2)
SUB
6.8K
2
3.4V
R97
R100
6
8
1
R84
3.3K
3.3K
ON
7
3
220
5
4
3.6V
3.6V
3.6V
IC3(2/2)
BUFF
0V
BUFF
SW1
+B
R104 820
2 1
1 2 3 4 5 6
1 2 3 4 5 6
1 2
CN9
CN10
CN11
CN12
50
200
800
3.2K
12.8K
50
200
800
3.2K
12.8K
I
J
R
FADER
F
R13
R15
CN1
560
1K
L
4
3
FRONT
R14
Q10
2
10K
R
1
R16
MUTE
1K
R64
Q11
10K
CN2
R63
R65
4
L
560
1K
3
REAR
2
R66
R
1
1K
Q12
MUTE
C95
R102
R150
CN3
10u50
560
470
L
4
+
R103
3
10K
SUB
Q12
2
1
R
3
4
5
6
1
2 3 4
CN13
150Hz
30Hz
VR2(6/7)
SUBWOOFER
FREQ.
VR2(7/7)
SUBWOOFER
LEVEL
KGC-4042A
KGC-4042A
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