Kenwood KCA-BT100 Service Manual page 11

F
1
5V
0V
5V
0V
IC3
MAIN
u-COM
5V
0V
5V
5V
5V 0V
0V
0V
5V
5V
5.0V 0V
0V
5.0V
BU5V-1
9 10
2 10
3
4
9
12 BU
10
35 R24
1 10K
5V 3.3V
CONVERSION
3.3V
R22
39K
IC5
C20
3
1
L9
180
4
9
5 4
5V
0V
4
3
2
9
3
5V
0V
5.0V
IC6
BU5V
BU
R88
22K
5.0V
TP57
3 38
77
37
2K
3.3V
CONVERSION
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units.
G
1
AUDIO
GND SW
75
CP18
D11
47
74
5V
D12 D12
0V 73
D13 D13
72
D14 D14
71
D15 D15
70 R29
NC CP19 47
47
69
A0 A0
68 R30
A1 A1
47
67
A2 A2
5V
66 R28
0V A3 A3
47
CP20 47
65 R27
A4 A4
47
64
A5 A5
63
D6
A6 A6
0V A7
62
VSS
5V
61
0V A7 1
60 5.0V
VCC2
CP21 47
59
A8 A8
58
A9 A9
57
A10 A10
56
A11 A11
5V
0V CP22 47
55
A12 A12
54
A13 A13
53
A14 A14
52 0V
A15 A15
CP23 47
51
A16 A16
5V
A17
0V
A18
CP6 100
CS
WR
RD
R86 100 Q7
DSP
5 6 8 12
8
2
39 Q10
33
TP48
5V 5V
0V 0V
3.3V 3.3V
0V 0V
TP49
BU5V
Q6,16
BU5V
AVR
3.3V C12
0V
0.1
5V REG.
IC10
5V
0V
5V
R87
0V
47K
3.3V
0V
SW5V
3.3V REG.
IC9
0V
3.3V
0V
3.3V
5V
TP51
H
Q13
R43
4.7K
C43
10u16
R2
+
C44
10u16
L2
+
C45
10u16
R
+
C46
10u16
L
+
D7 D10 D11
ANALOG SW
IC11
8.0V
1 14
I/O1 VDD
8V
2 13
O/I1 0V CONT1
3 12
O/12 4.0V CONT4
4 11
I/O2 I/O4
8V
5 10
CONT2 0V O/I4
6 9
CONT3 4.0V O/I3
7 8
VSS I/O3
Q8 Q11
ANALOG SW
CONT
5 6
BU
22
A8V
Q9,10
A8V AVR
Q12
Q12
SW14V
Q9
R45
BPF
D13
1K
IC13
R48
4.0V 5
22K
4.0V 6
Q6
C59
10u16
4.0V 7
Q16
+
8.0V 8
MIC
INPUT IC12
AMP
4.0V 5
4.0V 6
14.0V
C51
14V
6800P 4.0V 7
0V
8.0V 8
R38
TP50 12K
C52
1
R41
470
L4
5.0V
C48
1
I
KCA-BT100
from 5L INTERFACE (CHANGER)
J1
1 5 9
6 10
2
13
3 7 11
4 12
8
5 12
TP33
TP34
R71 47
TP35
R67 100
TP36
5
TP37
R65 100
TP38
7
R69 47
TP39
R66 100
TP40
61
R64 100
TP41
5
14
R68 470
TP42
12 11
R72 100
TP43
13
R70 100
TP44
11
R63 100
TP45
6 12
12 2
C60 0.1
4 0V TP47
V-
3 4.0V
R83 C67
2 4.0V
10K 0.1
HF
1 4.0V
AUDIO
V+
C54 0.1
4 0V TP46
C58 R52 C61 R74
V-
4700P 470 1 100
3 4.0V
2 4.0V
R51
1 4.0V
470
V+
R44 C55
470 1 R50
1K
KCA-BT100
X32-5852-70 (2/2)
J
1
2
CN1
1 BU
2 GND
3 NC
4 Lch
3
5 RST
6 AGND
7 MUTE
8 Rch
9 REQH
10 REQC
11 CHCON
12 CLK
13 DATAH
14 DATAC
4
5
J2
1
2
3
from 6
MICRO-
PHONE
7
11