Tx-Rx Unit (X57-7390-10) - Kenwood NX-800 Service Manual

Uhf digital transceiver
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INTERCONNECTION DIAGRAM
26 PIN BOARD TO BOARD CONNECTO
CN403
CN597
1
GND
GND
RX D
TXD
NC
50C
SHIFT
GND
GND
GND
GND
PRST
AFO
GND
ME
MIC
X57-739*-**
GND
GND
PSW
TX-RX UNIT
NC
SB
SB
80C
GND
SPO
SPO
SPO
SPO
SPO
SPO
30
RA30H4452M123
R
1
A/2
1
5
1
AUDIO IC
80C AV R
LA4425A
IC715
IC102
ANT
4
R152
CN705
1
SB
SPI
SPO
PA
HO R
GN D
EXT SP
6
CN401
CN402
CN600
CN901
30
30
AUXIO6
AUXIO6
AUXIO7
AUXIO7
AUXIO1
AUXIO1
AUXIO2
AUXIO2
RXD2
RXD2
AUXIO3
AUXIO3
TXD 2
AUXIO4
AUXIO4
AUXIO8
AUXIO8
AUXIO5
AUXIO5
AUXIO9
AUXIO9
AUXO 1
AUXO1
TXD 0
TXD0
AUXO 2
AUXO2
RXD0
RXD0
GN
ME
ME
MI2
MI2
DEO
GN D
50C
DI
DI
AFO
SB
SB
SB
SB
SB
SB
SB
SB
SB
SB
SB
SB
NC
NC
1
1
3
IC403
NX-800
+
13.6 V
-
J90 1
13
AUXIO6
ME
25
12
AUXIO7
AUXIO 1
24
11
GN D
23
AUXIO 2
RXD2
10
22
AUXIO 3
9
TXD 2
AUXIO 4
21
8
AUXIO8
AUXIO 5
20
GN D
7
DE O
19
6
MI2
GN D
18
5
DI
AFO
17
AUXIO9
4
16
AUXO1
3
TXD 1
AUXO2
15
2
RXD1
14
SB
1
NC
97

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