Kenwood TK-780 Programming Instructions Manual page 15

Modifications To Kenwood TK-x80 Base Radio
When you are installing both a 2016 Base Modem and the interface to the PC for
FleetSync Data, some modifications have to be made to get all proper signals to the KCT-
19 connector. You will have to perform the following modification to the KCT-19/Radio
to connect all required signals to the KCT-19 output:
1) Remove the Red wire from pin 2 of CN1 and solder this wire to pin 3 of CN2 in
the TK-x80 radio.
2) Be sure to install the "E" lead of the KCT-19 into CN-4 of the TK-x80 radio.
Once the above modifications are complete, you will have all necessary signals available
for both the 2016 Base Modem.
Note: With this modification, instead of inserting the Grey wire from the Merlin AVL into
pin 15 of the Kenwood Connector, Insert the Grey wire from the Merlin AVL into pin 1 of
the Kenwood Connector.
From this point you will be feeding your PC with two separate serial data signals, one
from the 2016 base modem and one from the PC output of the TK-x80 radio, providing
the FleetSync data to the PC.
15