A B C D E F G H I J K L M N O P Q R S
1
2
3
4
5
6
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 R4
R5
R7
R98
R86
R57
R11
R32
C58
C75
CF1
C79
R13 R422
R148
R3
C197
C195 X2
C92
C80 C15
C60
R161
C123
C111
C112
C100
C196
C18
CN2
4
1
1
4 5
8
R87
R6
R164
1
1213
24
R423
R157
R122
R147
R250
C138
D18
D17
C188
C189
C190
C199
CF2
R40
C61
C68
C8
C7 C16
IC2
1
34
5
C22
C19
R10
Q 5
R51
CD1
R417 R14
R59
R162
C26
C56
R56
C53
R99
C156
C155
R129
R136
L27 R137
R156
C3
C2
C1
R128
R127
C154
C175
C169
L32
L28
D9
D10
C167
C134
C168
C176 C143
C163
D6
L4
R21
R54
R16
L1
R12
R8
R9
C107
C9
C5
C28
C37
IC14
1
3 4
6
IC10
IC4
C6
IC1
R88
C120
C191
C200
C201
MON
LAMP
PTT
GND
C11
Q7
Q22
+
+
D
D
G
G
S
S
C109
C10
C263
+
+
1
4
45
81
IC845
81
5
8
IC3
+
CN3
F1
CN10
R25
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
I
1
10
EN1
E
EN2
E
VOL
5M
SB
SB
+B
+B
1
24
SB
MIC
ME
LBL
LG
LR
AUX
PTT
NC
CS
AM
5M
GND
KI2
KI1
KRS
DT
TXD
RXD
CK
PF
NC
AFE
AF
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
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
OGI