Kenwood KAC-8402 Service Manual page 11

U
QQ
3 7 63 1515 0
Rcont
15.0V
LPF
TP258
IC6
(1/2)
R211
R258
3 8
1
1.5K
2
22K
TP259
27
3K
R241 8.2K
S5
IC4
TP262
(1/2)
2
C211 C213
0.1 0.22
3
VR4
50K(C)
C212 C214
0.1 0.22
5
TE
6
L 13942296513
TP300
R242
8.2K
-15.0V
TP263
15.0V
IC5
(1/2)
C117
53
2 8
10u50
1
3
+
VR5
50K(C)
HPF
IC5
(2/2)
C118
5
10u50
7
6
+
4
301
-15.0V
C112
10u50
+
www
.
V
C215
10u50
+
VR1
10K(C)
9
C204
8
0.22
TP257 7
6
R212
2.4K
5 4
3
2 1
TP302
R214
1.5K
S6
HPF/OFF/LPF
C217
15.0V
8
10u50
1
+
HPF
S6
11 12
VR2
INPUT
SENS.
IC4
(2/2)
C218
10u50
7
+
4
C222
0.01
TP270
C216
10u50
+
-15V
PHASE INVERTER
+15V
VR3
R121
10K(A)
100
S4
7 8
5
2
R126
100
5 8
7
6
IC1
R130
4
TP255 (2/2)
10K
-15.0V
C124
PHASE INVERTER
150P
-15V
x ao
+15V
y
i
W
8
+15V
-15.0V
IC6
(2/2)
4
6
7
5
+15V
VR2
R239
10K(A)
9
100
8
7
6
BR
R243
5 4
470
3
BL
R244
2 1
470
R203
100
15.0V
Q Q
3 6 7 1 3
3 8
1
2
IC1
R246
(1/2)
10K
C230
150P
INPUT
SENS.
9
8
7
6
AR
R127
4
470
3
AL
R128
1
470
u163
.
X
KAC-8402/8452
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
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 accept-
ably insulated from the supply circuit) be-
fore the appliance is returned to the cus-
tomer.
• DC voltages are as measured with a high
impedance voltmeter. Values may vary
slightly due to variations between indi-
vidual instruments or/and units.
m
co
KAC-8402/8452 (2/2)
X08-4200-10 (2/2)
Y
9 9
1
2
3
2 8 9 9
4
5
6
7
11