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Kenwood KCA-S220A Service Manual page 5

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F
ANALOGUE SW
IC4
14
VDD
1
13
A1
SWA
2
12
A2
SWD
3
11
B1
D2
4
10
B2
D1
5
SWB
9
6
C2
SWC
7
8
GND
C1
D27
D28
Q8
Q7
1
4
R62 100
20
N02
20
R61 100
19
19
N01
18
LK2
18
R63
17
17
100K
H2
16
C2
16
R64
15
100K
QH2
15
D18
14
QC0
14
13
LK0
13
12
C0
12
R55
11
11
H0
100K
R53
100K
R60 100
10
LK1
10
R59 100
9
AH1
9
R58 100
R54
8
AC1
8
100K
7
EF1
R57 100
6
QH1
6
R85 100K
5
SW
4
VSS
3
NC
2
NC
1
NC
5V
R46
2.2K
G
C5
10u16
+
C6
10u16
+
R74
R77
100K 100K
8V
Q13
C20
0.01
C16
R76
R78
0.1u50
100K
100K
Q14
R79
R80
R92
10K
10K
470
D34
D25
D26
BU+14V
AGND
R5 100
Rch0
R9 100
Lch0
D37
R2
4
100
CHCON
D18
D17
D17
R4
D19
100
CH RST
D33
R8
100
DATAH0
D3
11
R10
100
HCLK0
13
R7 100
DATAC0
D2
12
R6
REQC0
14
100
D16
R3
D15
100
CH MUTE
D35
R1
D36
100
REQH0
GND
Q1
61
3
62
R52
D20
18K
Q15
3
H
CN4
R83
100
L ch
D23
to
AUX
D24
R84
100
R ch
REGULATOR
IC6
1
2
OUT
IN
+
GND
3
Q10
Q9
12
8
4
CN3
11
7
3
to
13
H.U
10
6
2
9
5
1
CAUTION : For continued safety, replace safety
critical components only with manufacturer's
recommended parts (refer to parts list).
D21
duce 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 re-
turned to the customer.
• DC voltages are as measured with a high
KCA-S220A
I
KCA-S220A
DTA114EK
DTA124EK
DTC124EK
2SC2412K
2SD2114K
DTC143EKA
DA204K
Indicates safety critical components. To re-
impedance voltmeter. Values may vary slightly
due to variations between individual instru-
ments or/and units.
ELECTRIC UNIT (2/2)
J
1
2
3
4
5
6
7
5

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