14-Pin Connector (Cn601) - Kenwood TKR-751 Modification Information

1.4

14-pin Connector (CN601)

The 14-pin connector for installing an additional Voice
Scrambler board is located in the internal board of the
TKR-750/850/751/851, and it can be connected cables of
Voice Scrambler board (SC20-460/480, etc.).
3.2 Installing the SC20-460.)
No. Pin name Input/Output
1 TXO Output
2 TXI Input
3 RXO Output
4 AC Output
5 BC1 Output
6 BC2 Output
7 BC3 Output
8 BC4 Output
9 PTI Input
10 CLRC Input
11 RXI Input
12 PTO Output
13 8C Output
14 GND Output
(Refer to
Mic signal output
Mic signal input
Received audio signal output
Audio control signal output
Scramble code signal output 1
Scramble code signal output 2
Scramble code signal output 3
Scramble code signal output 4
PTT signal input
Scramble code Clear signal input
Received audio signal input
PTT signal output
The repeater outputs 8 V interlocking with the power.
Ground
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Figure 1-5 14-pin connector (CN601) for installing additional
Voice Scrambler
Table 1-4 Assigning signals to 14-pin connector
Description