Kenwood KCA-BT100, Service Manual

Page: 11 / 16

KCA-BT100
11
J I H G F
1
2
3
4
5
6
7
D10
D4
D3
D9
D5
D8
Q16
Q6
Q9
Q10
Q7
Q8 Q11
D6 D7
Q13
D18
Q12
D13
D15
D17
J2
D11
D14 D16
D19
D20
J1
CN1
from 5L INTERFACE (CHANGER)
to HEAD UNIT
from
MICRO-
HF
AUDIO
MAIN
u-COM
3.3V 5V
5V REG.
3.3V REG.
BU5V
A8V AVR
ANALOG SW
AUDIO
GND SW
PHONE
CONVERSION
CONVERSION
5V 3.3V
BPF
MIC
AMP
INPUT
AVR
ANALOG SW
CONT
SW14V
C12
0.1
C13
0.1
C40
0.47
0.01 C34
C15
0.1
C26
22u16
C28
0.33
77
2K R15 18K
W1
2 5 3 4
GND OUT NC
1
CTL VCC
TP51
C37
220u10
L4
TP50
C36 0.47
SW
OUT
ON/OFF
4 5
GND1 VO
S
2 3
VIN
1
C31 0.01
C33
100u16
TP49
39K
C38 0.01
R25 15K
C39
100u16
R31 15K
54
CP4 47K CP5 47K
NC
35
SCIF0 TXD SCIF0 RXD
34
33
SCIF0 CTS NC NC
37
36
NC NC
40 39 38
TP17
46 43
RD NC
42
41
NC WR NC
45
44
DISP SEL
49
CS A18
48
47
NC A17
50
CP6 100
L7
180
R86 100
A16
A15
A14
A13
51
52
53
CP23 47
CP22 47
VCC2
VSS
D0
NC
FLASH RST
NC NC NC
FLASH R
Y
91 92 89 90 86 87 88
CP15 47
D2
D1
D5 D4 D3 D8 D7 D6
D10
D9
80 83 84 85 81 82
CP16 47
77 78 79 76
CP17 47
NC
62
58
A12
A11
A10
A9
55
56
57
A8
A7
59
60
61
CP21 47
66
A6
A5
A4
A3
63
64
65
A2
A1
A0
67
68
69
CP20 47
D12
D15
D14
D13
70
71
72
73
D11
74
75
CP19 47
47
R26
1K
VSS
CONT3
CONT2
I/O2
O/12
O/I1
I/O1
7
6
5
4
3
2
1
I/O4
I/O3
O/I3
O/I4
8
9
10
CONT4
CONT1
VDD
11
12
13
14
0.1
C41
R32 4.7K
R39 47K
C42
100u25
R81
1
1/2W
R34
1
1/2W
470
C48
1
R41
C50
1
R42
47K
C52
1
47K R49
R44
470
C55
1
C56
6800P
R50
1K
0.01
47K
C47 C49
470u16
C54 0.1
22K
R48
C57
1
TP47
R51
470
4700P 470
C58 R52
C59
10u16
V+
R47 12K
R45
1K C60 0.1
10K
TP46
1 100
R73
C61
1K
R74
2
3
1
R75 24K
R84
0.1
10K
82
R83
V-
C67
R82
C46
10u16
C45
10u16
C44
10u16
R33
100K
C43
10u16
R36
220K
R37
220K
R43
4.7K
R85
47
TP31
Rch2
REQH2
CHCON2
AG
N
D
2
GND
BU
4 8
2 6
7 3
1 5
REQC2
D
ATA
C
2
MUTE2
RST2
D
AT
AH2
CLK2
Lch2
12
11
10
13
9
TP26 TP25 TP24 TP23 TP22 TP27 TP30 TP32 TP29 TP28
R55 100 R57 100 R58 100 R53 100 R59 470 R61 100 R62 100
6
5
7
8
3
4
2
1
5
4
GND
7 8 6
2
1
3
VCC
11
4
6
7
GND
5
8 10 9
3
1
2
12 14 13
VCC
7
MUTE
DATAH
DATAC
REQC
CLK
CHCON
Rch
REQH
13
14
10
12
11
9
8
BU
Lch
RST
AGND
NC
GND
1
4
6
5
3
2
TP44
TP42
TP43
TP40
TP41
TP45
TP35
TP38
TP39
TP36
TP37
TP34
TP33
R63 100
R64 100
R65 100
R66 100
R67 100
R68 470
R69 47
R70 100
R71 47
R72 100
47
R28
47
R27
47
R29
47
R30
100K
R35
47
R56
47
R54
47
R60
8
7
V+
5
6
1
4
3
2
V-
CP13
TP48
TP16
20
40
39
36
37
R L
L2
R2
R
L
L2 R2
7
5
12
13
11
61
11
14
27 18 16 17
64
15 20
RST
RY
D0
D11
D3 D2
D1
D4 D7 D5 D6 D8 D9
D10
D13
D14
D15
D12
A10
A15
A16
A12
A13
A14
A11
A7
A8
A9
A4
A5
A6
A0
A2
A3
A1
WR
RD
A17
A18
CS
DSP
6800P
C51
12K
R38
4
3
2
5
38
34
34
32
33
1
35
10K
R24
1
C20
10u16
180
L9
39K
R22
36
33
25
22
RL2
A8V
BU5V
SW5V
SW3.3V
16
A8V
BU
A8V
SW3.3V
SW3.3V
C63
0.1
B
U5V
B
U5V
BU5V
BU
BU
BU BU
BU
21
2
2
R89 22K
47K
R87
22K
R88
BU5V-1
TP52 TP53 TP54
CP18
Q6,16
Q12
Q9,10
TP57
+
+
+
+
+
+
+
+
+
+
+
+
IC6
IC9
IC10
IC3
IC5
IC11
IC12
IC13
KCA-BT100
4.0V 0V
4.0V
8.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
8.0V
4.0V
0V
4.0V
4.0V
4.0V
5.0V
0V
3.3V
0V
5V
0V
14V
5V
0V
5V
0V
5V
0V
5V
0V
5.0V
5V
0V
5.0V
0V
5V
0V
5V
5V
0V
5V
0V
0V
5V
5V
0V
5V
0V
5.0V
5V
0V
0V
0V
8V
8V
0V
4.0V
4.0V
0V
8.0V
5V
0V
0V
3.3V
5V
3.3V
0V
0V
0V
5V
3.3V
0V
3.3V 3.3V
0V
3.3V
5V
0V
0V
3.3V
0V
3.3V
5V
0V
5.0V 0V
5.0V
5.0V
0V
14.0V
1
1
1
2
3
3
4
4
3
5
6
9 10
10
9
9
5 6 5 6
5
8
8
2
10
4
9
3
12
12
12
12
12
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units.
X32-5852-70 (2/2)