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Kenwood KTC-SR901 Service Manual page 7

Sirius satellite radio tuner
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K
L
Q Q
3 7 6 3 1 5 1 5 0
3.3V
0V
1
NC
2
123
MRCD2
3
3.3V
122
MRCD3
0V
3.3V
4
D3.3V
VDD
5
VSS
6
TN
CSINTN
R21
7
DO
CSSDO
C86
10
8
DI
CSSDI
0.1
3.3V
9
SN
CSSSN
0V
10
CK
CSSCK
11
121
SCFRN
12
120
SCWRN
13
117
SCD0
3.3V
14
D3.3V
VDD
C87
15
VSS
0.1
16
116
SCD1
17
115
SCD2
18
114
SCD3
3.3V
19
0V
149
SVCIBF
20
148
SVCSCK
21
147
SVCSSN
22
145
SVCMDO
3.3V
23
D3.3V
VDD
3.3V
C88
0V
24
VSS
0.1
25
CLKO
TP
15M
R20
270
T E
L
1 3 9 4 2 2 9 6 5 1 3
D3.3V
3.3V
76
65
OTIM0
77
64
OTIM1
78
63
OTIM2
3.3V
79
0V
62
OTIM3
80
61
OTIM4
81
60
OTIM5
82
59
OTIM6
83
58
OTIM7
84
57
OTIMWRN
3.3V
85
D3.3V
VDD
86
VSS
87
56
OSAP0
88
55
OSAP1
89
FFT,
54
OSAP2
90
DE-MODULATOR
53
OSAP3
91
52
OSAP4
92
49
OSAP5
3.3V
93
48
OSAP6
0V
94
47
OSAP7
95
46
OSAP8
96
45
OSAP9
97
44
OSAP10
98
43
OSAP11
99
3.3V
42
OSAWRN
100
41
OISAN
w w w
.
M
N
+8V
+3.3V
+5V
D5V
3.3V
3.3V
3.3V
0V
75
CDA8
75
C96
74
0.1
3.3V
VSS
3.3V
73
0V
VDD
D3.3V
72
CDA7
72
3.3V
71
CDA6
71
0V
70
CDA5
70
69
C97
CDA4
69
68
0.1
VSS
3.3V
67
VDD
D2.5V
66
CDA3
66
3.3V
65
D1
0V
CDA2
65
64
CDA1
64
IC7
63
C98
CDA0
63
0.1
62
DE-INTERLEAVER,
VSS
3.3V
DECODER
61
VDD
D3.3V
60
0V
CDD7
60
D3.3V
59
0V
C119
CDD6
59
58
0V
0.1
CDD5
58
57
0V
C99
C116
CDD4
57
56
0.1
0.1
VSS
3.3V
55
VDD
D3.3V
C112
54
0.1
CDD3
54
3.3V
53
CDD2
53
0V
52
CDD1
52
51
60M
CDD0
51
R25
100
3.3V
C111
0.1
D3.3V
D2.5V
125
D3.3V
3.3V
3.3V
3.3V
50
NC
49
RESERVED
48
RESERVED
47
NC
46
NC
45
NC
44
TDI
43
TDO
42
3.3V
TMS
41
TCK
D3.3V
40
0V
C66
TRST
39
0.1
IC4
VSS
38
3.3V
VDD
D3.3V
37
3.3V
CSINTN
TN
R11
36
CSSDO
DO
3.3V
10
35
0V
CSSDI
DI
34
CSSSN
SN
33
C67
CSSCK
CK
32
0.1
VSS
31
3.3V
VDD
D3.3V
30
NC
29
RESERVED
28
RESERVED
27
NC
60M
26
NC
x
a o
y
D3.3V
i
O
P
8
D2.5V
D3.3V
TN
3.3V
89
VSS
90
90
A13
3.3V
0V
91
0V
91
D11
92
92
A12
0V
93
93
D10
94
94
A11
0V
95
95
D9
96
96
A10
0V
97
97
D8
2.5V
98
FL
99
99
A9
2.5V
100
D2.5V
VDD25
0V
101
101
D7
3.3V
102
VDD33
103
103
A8
3.3V
104
0V
VSS
0V
105
105
D6
106
106
A7
0V
107
107
D5
108
108
A6
0V
109
109
D4
110
110
A5
IC9
0V
111
111
D3
AUDIO-DECODER,
112
112
A4
SYSTEM CONTROLLER
0V
113
113
D2
114
114
A3
0V
115
115
D1
116
116
A2
0V
117
117
D0
118
VSS
119
119
A1
3.3V
120
VDD33
121
Q
Q
BE1N
3
7
6
3
2.5V
122
VDD25
123
WAITN
3.3V
124
124
OEN
3.3V
125
CS3N
126
CS2N
127
CS1N
3.3V
128
128
WEN
129
CSRAMEN
3.3V
130
130
CSROMEN
131
BE0N
132
VSS
3.3V
3.3V
0V
0V
C107
0.1
C101
1000P
C108
1
R38
3.3K
IC10
16M
FLASH
3.3V
MEMORY
0V
u 1 6 3
.
Q
R
2
4
9
9
+8V
+3.3V
+5V
D5V
D2.5V
D3.3V
2.5V
C123
44
0.1
VSS
43
AB15
43
42
DB15
42
41
AB14
41
40
3.3V
DB14
40
0V
39
AB13
39
38
DB13
38
37
AB12
37
36
DB12
36
35
AB11
35
34
2.5V
VDD25
D2.5V
33
DB11
33
32
3.3V
VDD33
D3.3V
3.3V
31
C117
AB10
31
0V
0.1
30
VSS
29
DB10
29
28
AB9
28
27
DB9
27
26
AB8
26
25
DB8
25
24
AB7
24
23
3.3V
DB7
23
0V
22
AB6
22
21
DB6
21
20
AB5
20
19
DB5
19
18
AB4
18
17
DB4
17
16
AB3
16
15
C113
DB3
15
14
0.1
VSS
13
AB2
13
3.3V
12
VDD33
D3.3V
1
5
1
5
0
3.3V
8
9
2
11
DB2
11
0V
10
2.5V
VDD25
D2.5V
9
AB1
9
3.3V
8
0V
DB1
8
7
AB0
7
6
DB0
6
5
3.3V
READY
D3.3V
4
ERAMLO
3.3V
3
EROMLO
3
0V
2
3.3V
C110
RWN
2
1
0.1
VSS
3.3V
8.192M
3.3V
0V
0V
3.3V
0V
2.5V
A2
3
2
GND
C109
4
1
0.1
VCC
C102
1000P
D3.3V
C100
1
C240
0.1
D2.5V
D3.3V
R34
270
IC11
1M
SRAM
3.3V
0V
m
c o
S
T
2
8
9
9
4
9
8
2
9
9
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