Changing Kct-31 Wiring - Kenwood TK-7160 Modification Information

2 CONNECTING OPTIONAL DEVICES
8. Connect the D-sub 9-pin connector to the serial
port of a PC that has Garmin Programming
Software installed.
9. Run the Garmin Sensor/ Smart antenna software
and click the "Connect" button.
The connection confirmation message appears as
soon as the connection is established. If the
confirmation message doesn't appear, inspect the
configuration for the COM port. When connection
is established, the software configures the baud
rate automatically.
10.Program the GPS35-HVS to output both GPS
headers ($GPGGA) and ($GPRMC).
PRMC default values contain some zeros which the
transceiver cannot process. Adding the header
$PGGA retrieves the initialization data from the
GPS unit. All other configurations in the
GPS35-HVS should work with default values.
11.Confirm changes of the NMEA data word taken
from the GPS35-HVS.
After confirming configurations, remove
programming jigs and modify the KCT-31 cable as
below.

2.7.4 Changing KCT-31 Wiring

KCT-31 wiring needs to be changed to supply 12 V to
the GPS35-HVC unit. Follow the procedure below to
change KCT-31 wiring.
Note: The GPS35-HVS must be programmed before installation in
the transceiver. Refer to 2.7.3 Preparing a Programming Jig
on page 23.
1. Remove the connector cover of the D-sub 9-pin
connector.
2. Solder a jumper wire to pin 4 of the connector
where the red lead comes through as shown in the
figure.
This is the closest pin to the square grounding pad
on the PCB (Refer to the picture below).
24
CONTENTS
3. Connect the other end of the jumper wire in step 2
to the D-sub 9-pin connector as shown in the figure
below.
4. Install the connector cover on the D-sub 9-pin
connector.
5. Cut the KCT-31 cable as shown in the figure.
6. Reassemble the cables as shown in the figure.
Confidential MOD (K)/Ver. 2.00