Kenwood KCA-S220A - Car Audio Switcher, Руководство по обслуживанию

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KCA-S220A
5
J I H G F
1
2
3
4
5
6
7
D2
D3
D1
CN3
D36
D37
Q8
Q7
D28
D27
CN4
R ch
L ch
D23
D24
Q14
Q13
D32
D34
Q10
Q9
D26
D25
D15
D16
D35
D19
D18
D17
D33
Q15
D29
D21
Q1
D20
H.U
to
AUX
to
ANALOGUE SW
REGULATOR
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
N02
N01
LK2
H2
C2
QH2
QC0
LK0
C0
H0
LK1
AH1
AC1
EF1
QH1
SW
VSS
NC
NC
NC
4
3
8
7
12
11
2
1
6
5
10
13
9
R9 100
R5 100
11
R7 100
12
14
CH MUTE
REQH0
GND
REQC0
CH RST
HCLK0
DATAC0
DATAH0
CHCON
Rch0
Lch0
BU+14V
AGND
SWB
SWC
GND
A2
5
6
7
3
4
B1
B2
2
1
A1
SWA
C1
10
C2
D1
8
9
D2
SWD
12
11
VDD
13
14
R75
100K
100K
R72
1K
R71
R74
100K 100K
R77
R80
10K
100K
R78
10K
R79
100K
R76
R73
10u16
C8
+
10u16
C7
+
100
R83
10u16
+
C6
10u16
+
C5
R82
100K
R81
100K
100
R84
R93
220K
R94 4.7K
IN OUT
GND
470
R92
0.01
C20
0.1u50
+
C16
47u16
C21
+
R60 100
R58 100
R59 100
R57 100
6
8
9
10
R61 100
19
R85 100K
15
16
17
18
R62 100
20
11
12
13
14
100K
R63
100K
R64
100K
R55
100K
R54
100K
R53
13
D16
D17
100
R8
100
R4
100
R2
D15
D18
100
R10
7
61
100u16
C19
+
10u16
C18
+
22K
R95
100u16
C17
+
18K
R52
62
0.1 C9
2.2K
R46
100
R3
100
R1
100
R6
5V
B
U+14V
8V
1K
1 2
3
IC4
IC6
KCA-S220A
1
4
4
3
3
CAUTION : For continued safety, replace safety
critical components only with manufacturer’s
recommended parts (refer to parts list).
Indicates safety critical components. To re-
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
impedance voltmeter. Values may vary slightly
due to variations between individual instru-
ments or/and units.
ELECTRIC UNIT (2/2)
DTA114EK
DTA124EK
DTC124EK
2SC2412K
2SD2114K
DTC143EKA
DA204K