Kenwood KDC-BT7539U Service Manual page 33

P
12 14
SGND
E
W
R128
47K
R134 R127
2
1K 1K
20
ANTENNA SW
3
A8V
D145
4
20
BU5V
15
PON5V
14
BU3.3V
E MUTE
REG
30V
0V
14.4V
ILL+B
SW16V
TP25
Q51
BU
Q52
R51
360
FLGND
BU3.3V
& PAN5V
R63 33K
R62 C62
10K 1500P
SW
REG
1.6V
14V
0V
5V
0V
L73
52
D5V
15
TP203
21
11
17
204
C201
1
OP USB
ESD
4 3 2 1
CN201
Q
to DC CORD
J1
9 10 11 12 13 14 15
8 7 6 5 4 3 2
12
20
14
BU
AUDIO8V REF
TP19
POWER SUPPLY
AUD8V AVR
Q11
IC11 13.7V
Q12
R11
OUT IN
220
1.3V
GND
0V
Q13
PON5V
Q23
5.0V
TP21
IC21
4 3
NC 0V CE
2
3.3V GND
TP22
Q24
5 1
VOUT VDD
Q43,44
TP24
ILL+B AVR ILL+B SW
Q41
10.0V
TP23
R41
Q43
1.8K
Q42
Q44
PAN
GND
IC605 LEVEL SHIFT (3.3V 5V)
BU3.3V
15
R662
2.2
R666
3.3V
0V
100
5V
5.0V
0V 3.3V
0V
15
IC605
5.0V
3.3V
0V
3.3V 5V
0V 0V
15
67 19
D5V
21
A8V
11
17
1 2 3 4 5 6 7 8 9 10 11
CN701
R
A8V
FUSE
10A
14
16
1
TP16
D1
31
NC31
32
CLOCKOUT
14 33
NC33
C1
34
NC34
3300u16
35
NC35
+
36
NC36
37
TP15
NC37
38
NRESET
C752
0V 39
VSS
4.7
40
VCC2
3.3V
R768
A8V
2.2K
14.4V
Q12,13
AUD8V AVR SW
BU5V AVR
Q21
D21
Q22
C753
0.1
0V
IC751
1
VCC
A0
2
WP
A1
3
A2 SCL
DGND
4
GND SDA
8.0V
Q31 Q33
Q31,32
SERVO+B
Q32
AVR
R31
Q33,34
SERVO+B
1.5K
SW
Q34
SRVGND
IC607 LEVEL SHIFT (5V 3.3V)
15
22
5V
0V
3.3V
3.3V
0V 5V
5V
0V
0V
IC607
3.3V
5V
0V 5V 3.3V
5V
0V 0V
0V
3.3V
0V
15
67
SERVO+B
BU5V
17 17
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
to X32-CN2
S
KDC-BT7539U/BT8041U
/BT8141UY/BT838U
SPISOMI
SPISIMO
SPINSS
3.3V
iPod
ROSC
AUTHENTICATION
0V
COPROCESSOR
MODE2
3.3V
0V I2CSDA
IC750
NC14
3.3V
0V 0V MODE1
GND
3.3V MODE0
CPREADY
3.3V
3.3V
0V
32.768kHz
0V
0V
X750
32.768kHz
SDA
3.3V
ROM CRRECTION
3.3V
0V
3.3V
3.3V
8
0V 0V
7
R766
TP705 TP710
100
6
SCL
5 R765
SDA
100
TP704 TP709
24
19 23 22
BU3.3V
3.3V
0V
19 21 24
23 22
3.3V
0V
0V
22
67,85
19
23
D5V
21
22
27 28 29 30
P71
X34-597x-xx (4/5)
T
A8V
14
20
19
18
17 R758 100K
R757 47K
16
R741
R756 100 3.3K
15
14 14
13 R755 47K
R754 47K
12
R753 100
11
R984
3.3V
0V 12K
19
22
23
3.3V-1
Q705
CD LOE
LIM SW BUFFER
3.3V 76
D
C713 C718
0.01 1 R728
R717
22K 1K
77
77 U
R718
78
78 U
R730 100
15K R729
79
D+ U
R732 33
15K R731
80
21 D- U
33
R733 4.7K
81
A
R747 22K
82
C
82
0V
Q705
83
D
R734 100
84
84 D
85
22 85 D
R735 100
86
86 C
R736
87
87 C
100
R738 22K
R737
88
88 C
100
R739
89
89 C
100
R740 100
90
24 SDA IP
R742 100
91
23 SCL IP
R744 100
92
92 B
R745 100
93
93 B
C714
R746 100
94
94 B
0.01
3.3V 95
D
R767
0V 96
R
97
22K
N
TP702 98
N
99
N
100
D
0V
23
TP707
TP700
23
22
23
D5V
33