Kenwood KAC-5203 Service Manual page 6

A
KAC-5203
AUDIO UNIT (X09-8612-70)
1
J1
L
R
2
TP151 TP155
J2
L+
9 10
TP157
L-
7 8
TP153
5 6
TP154
R-
3 4
3
TP158
R+
1 2
TP152 TP156
4
5
6
2SA817A-F
2SA992-A
2SC1627A-F
2SC1845-A
B
C
E
7
6
X09-8612-70 (1/2)
B
R131 C131
11 1000P
D101
TP103
C103
IC1
R101 10u50 R105
3
(1/2)
8
+
1K 4.7K
2
R109
TP105
12K
TP107
INPUT ISOLATION
AMP
R110
TP106
12K
IC1
(2/2)
6
C104
R102 10u50 R106 5
4
+
1K 4.7K
TP104
D102
R153 C151
39K 10u50
+
R155 C153
39K 10u50
+
15V
R156 C154
39K 10u50
+
3.41V
R154 C152
39K 10u50
R667
+
10K
C308
10u50
+
TP301
C301
0.1
IC3
L+R
(1/2)
TP302
C304
R301 R303
3 8
10u50
1
2
33K 27K
+
R302
R305
33K
10K
(6dB UP) LPF : 80Hz 12dB/OCT
C309
10u50
+
IC3
(2/2)
5
C310 R307
7
10u50 10K
6
+ 4
PIN 1-3 : LPF,
R308 10K
PIN 5-7 : INVERTER
C305
TP305
47P
2SA1576A 2SC3419
B
E C
C
+15V
C107
INPUT ISOLATION
AMP
0.01
R111 R117
TP111
3.9K 3.9K
1
R113 R119
3.9K 3.9K
VR1 10K
R149
TP109
1K
TP110
C149
TP108
1000P
R114 R120
3.9K 3.9K
R112 R118
7
3.9K 3.9K
TP112
INPUT
SENSE
C108
0.01
-15V
R664 150K
IC5
(2/2)
R663
5
7 10K
6
IC5 ATTENUATOR
(1/2) DRIVER
2 8
1
3
4
+15V
TP304
R636
3.3K
LPF/OFF
S1 Q622
7 8
R660
10K
Q623
R661
10K
Q622,623
ATTENUATOR
C307
10u50 R639
+
3.3K
-15V
SIGNAL LINE
GND LINE
B LINE
B LINE
2SC4081
D
IC2
(1/2)
3
8
1
2
R123 22K
C113 47P
TP31 TP30
TP113
TP114
R23
C114 47P
820
15V
R124 22K
2W
6
7
5
4
IC2
(2/2)
R24
820
-15V
2W
TP34 TP33
Q613
TP625
+15V
TP626
-15V
Q614
-B
+B +B
+15V
Q201-204
TP201
DIFFERENCE AMP
1st STAGE
C201
10u50
+
15V
C609
4.7u50
+
-15V
TP627
R637 Q207-210
DIFFERENCE AMP
10K
2ND STAGE
Q615
Q616
R638
10K
TP628
MUTE
C202
10u50
+
+15V
+15V
+B
-B
E
TP29
T
D6
28.5V
D7
-28.5V
TP32
Q610-614
SHOCK NOIS
TP623
MUTE
R628
TP620
10K
TP618
Q611
R6
4
TP621
Q612
TP635
R629
TP622
10K
TP624
+B
+15V
1mA
TP207
C209
C219 6P
47P
R251
Q201
47K
Q203
TP205
R209 C205
100 4700P
Q2
D
D
Q20
R210 C206
100 4700P
TP206
Q204
R252
Q202 47K
C210
TP202
6P
C220
47P
TP208