Kenwood KAC-X40 Service Manual page 11

P
PREAMPLIFIER UNIT (X08-4330-10)
-15V
+15V
TP60 TP61
HPF 40-200Hz
S1
TP30
Ach OPERATION
MONO/ST
+15V
-15V
R304
10K
R301
8.2K
+15V
-15V
TP133
TP136
C209 C207
0.1 0.1
TP76 TP77
VR8
HPF 40-200Hz
TP134
C210 C208
0.1 0.1
+15V
-15V
CN1
TP22
NC 22
TP1
D-GND 21
TP2
LED 20
TP3
FAN 19
TP4
-15V 18
TP5
X09- +15V 17
A/2-
TP6
AMP-AL 16
CN1
TP7
G3-GND 15
1/2
TP8
14
AMP-AR
TP9
AMP-BR 13
A
TP10
G2-GND 12
TP11
AMP-BL 11
TP12
ISO-AL 10
TP13
A-MAIN-GND 9
TP14
A-INP-GND 8
TP15
A-FIL-GND 7
TP16
ISO-AR 6
TP17
ISO-BR 5
TP18
B-MAIN-GND 4
TP19
B-INP-GNG 3
TP20
B-FIL-GND 2
TP21
ISO-BL 1
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 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.
Q
R107
TP90
20K
TP46
IC1
TP91
C101 C103
(1/2)
C105
0.1 0.1 3 8
10u35
1
S2
2
+
4
VR1
TP50
HPF AMP
C106
TP94
6
10u35
7
C102 C104
5
+
IC1
0.1 0.1
(2/2)
TP95 R108
20K
LPF(-24dB) 40-200Hz
TP85 TP84
VR4
TP82 TP83
LPF
40-200(-24dB)
R309
7.5K
IC4
(1/2) 5
R305 R306 R308
3 8
7.5K 9.1K 100K
1 6
R303
2
4
180K
C306
C303
0.033
LPF AMP
0.033
TP55
R225
HPF
20K TP54 TP56
AMP
IC6
(1/2)
C211
3 8
10u50 S6
1
2
+
4
HPF AMP
C212
6
10u35
7
5
+
IC6
(2/2)
TP135 R226
20K
R51
A/AB
1
R52
1 S4
AL
8
R4
100
AR
BR
R3
100
BL
S3
8
Bch OPERATION
MONO/ST
R
Ach SENSITIVITY
TP67 TP98
R113
100
TP65 TP99
R115
TP66
10K
VR2
TP64
TP68 TP69
TP70 TP71
VR3
TP72
R246
TP73
10K
TP105
TP74
R245
100
TP75
Bch SENSITIVITY
C307
10u35
7
+
IC4
(2/2)
C47
TP147 TP137
C213 7P
10u50
+
TP139
R231
12K
5
7
VR5 6
IC7
(2/2)
BASS BOOST BASS BOOST AMP
FREQ
6
TP142
7
R232
5
12K
IC8
TP140
(2/2)
C214
TP138
10u50
+
C48
7P
IC1,4,6-10 : BA4560RF
D1
TP52
CN5
1
7
2
3
TP26
TP53
FAN
CN3
R1
2
2.2
1
FAN
CN2
2
7
1
KAC-X40 (2/2)
S
KAC-X40
TP111 TP112
C9 R11 R23
7P TP113 100 TP114 100
C10 R12 R24
7P TP115 100 TP116 100
C11 R13 R25
IC9
C29 7P
7P 100 100
(1/2)
+15V
C109
3 8
10u50
1
2
+
4
C113 R121
-15V
R125
7P 100
100 TP110
C30 7P
IC9
(2/2) TP103
C110
5
10u50
7
6
+
C114 R122
R116 10K
7P 100
C108 100P
TP107
C228 100P TP108
C233 R249
R251 10K
TP100
7P 100
TP106
C251
2
10u50
1
3
+
IC10 C34 7P
(1/2)
TP109
R255 C234 R250
100 7P 100
C252
6
8
10u50
7
5
+
4 C33 7P
IC10
(2/2)
TP117 TP118
C19 R14 R26
7P TP119 100 TP120 100
C20 R15 R27
7P 100 100
+15V
-15V
IC7
TP143 (1/2)
R235
3 8
1
2
2.2K
4
R239
TP78 TP81
TP79
2.2K
VR6 C219
100P
BASS BOOST
TP80
0-18dB
C220
100P
R240
2.2K
2 8
R22
1
R236
3
100
4
2.2K
IC8
TP146
TP144
(1/2)
+15V
-15V
SIGNAL LINE
GND LINE
: LM1MA142WK-G
B LINE
B LINE
(X09- ) (B/2)
C600
WH1
0.01
1
D600
2
3
D600 : B30-1743-05
X08-4330-10 (1/1)
T
1
AL
AR
2
BR
BL
3
TP123
4
5
6
7
11