Kenwood TK-480 User Manual
A
B
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N
O
P
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R
S
1
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7
8
9
10
11
12
13
14
GND
D2
OPT
LOK
RXEMAI
RXD
AUXRXD
SB
SQ
D1
5C
AAC
RXWMAO
TXD
AUXTXD
AUDIOBEEP
MONI
LAMP
DEO
DI9
RXAO
RXAI
PTTOUT
TXAO
PTTIN
TXAI/MUTE
DI/ANI
RSSI
B
VC
ANT
R419
R420
R420
R4
R5
R7
R98
R86
R57
R11
R32
C58
C75
CF1
C79
R13 R422
R148
R3
C197
C195
X2
C92
C80
C15
C60
C60
R161
C123
C111
C112
C112
C100
C196
C18
CN2
4
1
1
4
5
8
R
87
R
6
R
16
4
1
12
13
24
R
42
3
R
15
7
R
12
2
R
14
7
R
25
0
C
13
8
D
18
D
17
C
18
8
C
18
9
C
19
0
C
19
9
C
F2
R
40
C
61
C
68
C
8
C
7
C
C
16
IC
2
1
3
4
5
C
22
C
19
R
10
Q
5
R
51
C
D
1
R
41
7
R
R
14
R
59
R
16
2
C
26
C
56
R
56
C
53
R
99
C
15
6
C
15
5
R
12
9
R
13
6
L2
7
R
13
7
R
15
6
C
3
C
2
C
1
R
12
8
R
12
7
C
15
4
C
17
5
C
16
9
L3
2
L2
8
D
9
D
10
C
16
7
C
13
4
C
16
8
C
17
6
C
14
3
C
16
3
D
6
L4
R
21
R
54
R
16
L1
R
12
R
8
R
9
C
10
7
C
9
C
5
C
28
C
37
IC
14
1
3
4
6
IC
10
IC
4
C
6
IC
1
R
88
C
12
0
C
19
1
C
20
0
C
20
1
M
O
N
LA
M
P
P
T
T
G
N
D
C11
Q7
Q22
+
+
D
D
G
G
S
S
C109
C10
C263
+
+
1
4
4
5
8
1
IC
8
4
5
8
1
5
8
IC3
+
CN3
F1
CN10
R25
R23
R23
+
C62
R49
C55
XF1
L20
L11
+
L25
C160
C173
C174
C40
C166
IC30
1
2
3
4
D7
L30
L31
L29
CN1
R2
R1
R17
C4
C12
IC5
R103
+
D2
O
G
G
I
1
10
E
N
1
E
E
N
2
E
V
O
L
5
M
S
B
S
B
+
B
+
B
1
24
S
B
M
IC
M
E
L
B
L
L
G
L
R
A
U
X
P
T
T
N
C
C
S
A
M
5
M
G
N
D
K
I2
K
I1
K
R
S
D
T
T
X
D
R
X
D
C
K
P
F
N
C
A
F
E
A
F
J72-0812-02
TK-480/481
PC BOARD VIEW
47
48
TX-RX UNIT (X57-5630-XX) -10 : TK-480 -11 : TK-481 Component side view
Component side
Foil side
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Pattern 5
Pattern 6
Pattern 2
Pattern 3
Pattern 4
Pattern 5
Pattern 6
Ref No. Address
IC1
4H
IC2
8R
IC3
7F
IC4
5G
IC5
9S
IC8
7I
IC10
7I
Ref No. Address
IC14
6K
IC30
3O
Q5
9L
Q7
5F
Q22
6F
D2
9R
D6
5M
Ref No. Address
D7
5P
D9
6Q
D10
6R
D17
9G
D18
9F
DTA144EE
DTC114EE
DTC144EE
2SA1832
2SC4617
2SC4619
2SC5108
2SB1132
IMN10
2SB798
2SC4988
DA221
MA742
3SK274
UPA672T
3SK318
2SJ243
2SK1824
S-81350HG-KD
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