Kenwood FM Transceiver TK-481 Service Manual page 46

800mhz/900mhz fm transceiver
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A
B
C
D
TX-RX UNIT (X57-5630-XX) -10 : TK-480 -11 : TK-481
R134
C165
CN12
1
C164
4
C20
+
C13
R131
IC6
R145 R144
O
I
C161
G
C38
+
L19
C139
G1
S
C132
Q9
G2
D
C30
C31
C129
TK11250BM
30622M8A-4F9GP
AT29C020-90TI
W29C020C90
TC35453F
M68757H
SA7025DK
M68757L
E
F
G
H
Foil side view
C152
R165
CN4
C172
R146
E
Q15
8
C
IC21
B
Q12
5
R143
Q18
R114
S
D
C170
G
C146
C149
C171
L21
C130
Q 11
R92
R95
Q2
Q1
S
D
Q10
G
Q17
Q20
R153
C193
L34
C136
L14
R105
R76
L15
C110
L10
R65
C91
C94
C84
C35
C78
R27
R60
C81
R62
C63
AT2408N10SI2.5
TC74HC4017AF
NJU7201U50
BU4094BCFV
I
J
K
L
R38
R78
R75
C177
+
C57
R72
L8
R68
L12
C182
R69
C181
R70
+
R42
R159
L5
R43
D12
R166
R90
L13
R39
C184
C119
+
C128
+
C14
+
R79
CN6
TH2
R29
R34
C32
C39 C54
R18
C51
D8
Q19
R19
R41
C41
9
8
X1
+
IC9
+
16
1
C48
C45
C49
L3
J72-0812-02
R33
Ref No. Address
IC6
IC7
IC9
IC11
IC12
IC13
IC15
IC16
IC17
IC18
IC19
IC21
IC23
Q1
49
M
N
O
PC BOARD VIEW
R83
8
7
IC13
X3
14
1
R276
C124 C113
R421
R89
C106
CP1
R81
33
23
22
L55
34
L56
CP21
C72
C70
R125
IC12
R124
C71
R123
C74
R201
C23
R202
R203
44
12
R204
1
11
R55
R205
R206
R61 R64
R207
R139
R116
+
R44
C147
C93
R58
R71
R66
R73
R80
C64
R106
C159
C203
C65
R110 R112
Ref No. Address
Ref No. Address
6B
Q2
7E
Q18
6E
7B
Q3
7I
Q19
8J
9I
Q4
6C
Q20
7E
5J
Q6
8F
Q21
7J
6N
Q8
6H
Q23
8H
3L
Q9
7D
D1
6K
7Q
Q10
7G
D3
8K
3R
Q11
6F
D4
7E
5Q
Q12
5F
D5
7F
3Q
Q13
5F
D8
8L
3P
Q14
6D
D11
9N
5D
Q15
5E
D12
6I
9L
Q16
8N
7E
Q17
7F
P
Q
R
S
TK-480/481
1
2
3
L22
L53
R408
C261
4
17
16
IC17
5
32
1
CP18
CP16
CP11
CP22
CP13
CP14
CP20
CP19
CP17
CP12
CP15
75
51
50
76
6
R150
CP10
CP9
CP8
R297
7
IC15
R298
CP7
CP6
CP24
8
26
100
1
25
R138
C205
R104
9
C157
X4
10
Component side
Pattern 1
Pattern 2
Pattern 3
Pattern 4
11
Pattern 5
Pattern 6
Foil side
12
13
50
14

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