Kenwood KAC-8101D Service Manual page 5

A
KAC-8101D/8151D
QQ
3 7 63 1515 0
1
(X09-5480-1x) (A/2)
J1
R1 C3 R5
1K 10u35 27K
L
+
INPUT
R
L
OUTPUT
R2 C4 R6
2
1K 10u35 27K
R
+
R10 C6
J3
47K 10u35
1 2
+
R12 C8
47K 10u35
3 4
SPEAKER
+
INPUT
5 6
R11 C7
47K 10u35
7 8
+
R9 C5
47K 10u35
9 10
+
3
TE
L 13942296513
4
5
Q51
-16.0V
6
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
www
(exposed parts are acceptably insulated from the supply circuit) before
the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values
may vary slightly due to variations between individual instruments or/
and units.
7
6
X09-5480-1x
(1/2)
B
ISO AMP
16.0V
IC1(1/2)
R13
R24
1K 8
3
1 10K
2
4
R23 33K
C24 47P
D10
R113 C111
33K 1u50 R117
+
1K
R114
D5
10K
Q1
R112
100K
16.0V
IC4
(2/2)
8
6
C60
7
10u35
5
+ 4
E.X.P
C61
IC6
0.01
D45
51.8V
16.0V
R315
Q49
10
Q47
R317
24K
R322 R318
10 24K
Q52
Q48
D46
Q50
R316
10
-51.8V
x ao
. i
C
IC1(2/2)
C28
5
10u35
7
6
+
VR1
10K(A)
R26 10K
C27 10P
10.2V
R103
R106 10K 1.5K
C103
1800P
IC9
IC7
C104
8
3
(1/2) NC14
0.01
1
2
NC13
1
NC1 AOUT
2
NC2
V+
3
IC7(2/2)
R120
R122 5 AGND
4.7K
7 4
6 AIN+
470
5
BIN-
4 AIN-
C114
6
BIN+
V-
47P
7
R119 BOUT BGND
680K
SUMMING
AMP
-10.2V
R124
24K
C72
R65
3
10u35
1
4.7K 2
+
Q Q
IC4(1/2)
C69
3 6 7
10u35
R68 4.7K
+
C71 100P
S3
65.7V
Q53
D49
L2
8
R324
D50
5.6K
7
9
6
D51
10
D52
5
4
11
3
12
13 2
14 1
DC/DC
u163
y
D
2 9 9 4
8
BASS BOOST
R34
220K
IC2(1/2) S1
R45
R32
3 8
300 1.2K
1
2
4
C33
0.22 90Hz OFF +12dB
14
IC10
R132
4
14 6
510
13 1
5
3
R134
12 2
(2/4)
10K
11 IC10
C133
(1/4)
39P
10
9
R133
IC11 IC11
(3/4) (4/4)
10K
8
1 12
D14
3 11
2 13
DEAD TIME
GEN CIRCUIT
1 3 1 5 0 5 8 2 9
IC8
5
BIN+
R205 6
BIN-
100K
7
BOUT
Q28
R199
D19
2.2K
8
5 V+
W404
1 2 3
Q41 Q43 Q45
R305
D43
10
R303
W403
4 3 2 1
75
Q46 Q44 Q42
R306
D44
10
R304
3 2 1 75
W405
2SA1123
2SA1286-T11
2SA1534A
m
2SA733(A)
2SA992
2SC1845
co
2SC2631
2SC3940A
.
2SC945(A)
E
2 8
9 9
LEVEL SW
R33 R48 R47
220K 680 330
8.0V
IC12
-7.9V
IC11
(1/4)
IC10
13
R135
11 14
4
1K
12
5
D16
(3/4)
IC11
IC10 (4/4)
10
(2/4)
R136
8 10
8
9 1K
9
7
D17
7
16.0V
R198
9 4 2 8 9 9
39K
4
GND
R202 C193
10K 47u25
3
AIN+
+
R196
4.7K
2
AIN-
1
R197
AOUT
4.7K
Q37
D30
Q39
3
8
Q40
Q38
B
C
E