Kenwood KAC-8102D Service Manual page 7

Power amplifier
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A
1
(X09-5820-1x) (A/2)
TP108
J1
TP101
L
TP103
LINE IN
TP102
TP105
R
TP107
TP104
L
LINE OUT
TP106
R
2
J2
R110
TP43
47K
1
2
R112
R
47K
3
4
SPEAKER
TP44
LEVEL
5
6
R111
INPUT
TP45
47K
7
8
R109
L
47K
9
10
TP46
CN1
X08-A/2-
TP58
CN1
LED
8
TP59
D GND
7
2/2
TP56
3
+15V
6
TP55
-15V
5
A
TP54
ISO GND 2
4
TP53
SIG 2
3
TP52
ISO GND 1
2
TP51
SIG 1
1
R208
R152
4
D151
150K
10K
R209
100K
MUTE
R181
IC12
1K
5V
0V
(1/4)
14
1
R182
1.1K
2
7
0V
TP40
TP41
5
15.0V
TP28
6
Q30
TP80
-15.0V
TP30
-15V AVR
7
B
D101
TP109
IC11
R101
C103
(1/2)
1K
10u50
R105
R113
3
+
27K
1K
2
R116 33K
C110 47P
TP110
R117
C104
R106
10K
R102 10u50
27K
R210
+
1K
9.1
C106
10u50
+
C108
10u50
+
C107
10u50
+
C105
10u50
+
IC32
TP152
TP153
TP155
(2/2)
C151
R159
1u50
R155
R156
5
10K
7
+
6
1K
470
C156
TP151
C154 47P
1000P
R158 680K
Q151
R160
68K
TP154
5V
5.0V
IC12
0V
5V
5V
TP181
0V
0V
TP184
(3/4)
3
4
4
6
13
5
11
5
R184 10K
12
IC12 (2/4)
D183
5V
IC13
5V
0V
(2/4)
0V
TP182
10
10
8
8
9
R183 10K
9
IC12
5V
5V
1
D182
0V
(4/4)
3
0V
2
0V
IC13 (3/4)
TP183
100.0V(0-10/11)
79.0V(0-12/13)
Q416
TP33
TP32
R421
85.0V(0-10/11)
65.0V(0-12/13)
5.6K
15V AVR
TP29
TP24
TP25
D18
R53
Q26
10
TP79
Q25
R52
Q29
R61
R57
10
Q42
D19
TP83
R58
10
Q28
TP31
TP26
TP27
-85.0V(0-10/11) -65.0V(0-12/13)
C
BASS BOOST REMOTE CONTROL
LEVEL and FREQUENCY
ISO. AMP
IC11
15.0V
(0-10,0-12)
(2/2)
TP111
R119
1
5
8
C114
10u50
7
10K
+
6
4
R123
10K
C112
-15.0V
100P
+15V
-15V
R161
*Q403
24K
5V
0V
IC13
R425
(1/4)
D401
10K
14
Q401
Q402
R423 1K
6
TP185
7
R426
D402
10K
R424 1K
TP186
13
0V
11
12
IC13 (4/4)
+14.4V
D403
DC/DC CONVERTER
D404
D405
D406
C17
L3
3900u16
+
C18
3900u16
+
D
KAC-8102D/8152D
KAC-9102D/9152D
TP510
TP506
2.6V
2.6V
TP505
C507 100P
IC52
0V
R512 39K
R511
10K
6
7
5
0V
IC51
(2/2)
2.6V
TP508
R517
C509
TP38 TP39
TP507
16K
0.1
R510
510
R518
TP509
10K
+5.3V
-15.0V
COMPALATOR
R301 10K
4.5V
TP301
TP302
C303
R303
-4.5V
330P
6.8K
4V
-4V
-15.0V
TP303
TP304
0V
2
4
1
IC31
3
IC32
8
4V
(1/2)
0V
-4V
15.0V
TP306
R418
Q417
1K
1/2W
Q418
R199
Q408
Q412
10
Q187
R200
10
Q405
Q404
Q410
Q414
R201
Q409
Q413
10
Q188
R202
10
Q406
Q407
Q411
Q415
POWER AMP
Q12
Q13
Q14
Q15
1
1
2
2
3
3
4
4
5
6
7
8
Q20
Q19
Q18
Q17
X09-5820-1x A/2 (1/2)
E
TP511
C524
0.01
IC
2.6V
2.6V
5.3V
D303
6V
-15V
R306
6.2K
D30
6V
15.0V
-15V
R305
3.9K
TP305
R626
3.3K
Q604
CURRENT
DETEC.
Q60
R627
Q189
3.3K
Q190
+14.3V
Q8
Q37
TP76
R41
10
TP88
Q10
TP77
TP78
Q11
TP89
R42
10
TP75
Q9
Q38
7

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