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Kenwood KDC-BT645U Service Manual page 25

20hz-20khz
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F
LX BUS
J4
1
5
9
2
6
10
13
3
7
11
4
8
12
R604
1K
D605
D604
D601
5
4
7
23
2
28
3
1
7
3.3V
0V
3.3V
0.6V
12
12
10
11
10
F-AUX
10
C311
C310
1000P
1000P
R349
R348
10K
10K
11
9
7
5
3
10
8
6
4
G
1
2 3
D
4
IC8
4
1
NC
0V
2
VSS
1
2
RESET IC
3
D650
4
5
C203
22P
C202
22P
1
6
2
3
6
R619
100K
R207
47K
0V
5
9
6
R405
C403
0
1u50
6
+
L751
5
11
12
9
11
D301
NOT USED
R347
1K
IC10
1
8
A0
VCC
2
7
Q301
A1
WP
3
6
A2
SCL
PANEL 5V
4
5
VSS
SDA
SW
ATOMIC E2PROM
1
2
H
4
C201
5.0V
1
4
VIN
3
VOUT
5V
0V
TP432
S3
TP158
R334
1K
1
NC
2
TP180
NC
3
NC
4
REMO
5
NC
0V
6
BYTE
TP412
R203
R201
0V
7
CNVSS
10K
1K
8
XCIN
X2
32.768kHz
R204
9
5V
XCOUT
0V
100K
10
RESET
11
XOUT
0V
12
X1
VSS
16.000MHz
13
XIN
5.0V
14
VCC1
15
NC
16
LX REQ S
5V
17
17
RDS CLK
0V
18
PANEL DET
19
NC
20
NC
21
NC
TP404
22
13DIG
NC
23
5V
23
RDS QUAL
0V
24
F SYNC
25
9
25
RDS DATA
6
11
BU5V
6
12
10
12
6
C191
0.1
R320
TP192
4.7K
SCL
TP191
R318
SDA
4.7K
24
22
20
18
CN2
23
21
19
I
KDC-BT40U/BT645U
KDC-U546BT
1
2 3
BU5V
5V
0V
5V
0V
IC1
SYSTEM u-COM
11DIG
5V
5V
5V
0V
5V
0V
0V
0V
0V
BU5V
14
BT
10
10
10
13
R328
47K
R327
47K
16
14
12
10
8
17
15
13
11
9
to CD PLAYER UNIT (X32- ) CN2
X34-662x-xx (2/4)
J
1 2
3
17
R58
47K
C69
0.1
5V
3.3V
0V
0V
5V
0V
9B3
9B1
5V
5V
0V
0V
5V
9B3
9B1
0V
5V
NC
0V
5V
0V
9B3
9B1
5V
NC
0V
R261
R262
2.2K
47K
R260
R263
4.7K
47K
R271
13
47K
14
1
13
15
5
1
6
6
4
2
7
5
3
1
25

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