Kenwood TM-V7E - Manual (Page 9)

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DC POWER CABLE CONNECTION
LOCATE THE POWER INPUT CONNECTOR AS CLOSE TO THE
TRANSCEIVER AS POSSIBLE.
■ Mobile Operation
The vehicle battery must have a nominal rating of 12 V.
Never connect the transceiver to a 24 V battery. Be
sure to use a 12 V vehicle battery that has sufficient
current capacity. If the current to the transceiver is
insufficient, the display may darken during transmission,
or transmit output power may drop excessively.
1 Route the DC power cable supplied with the
transceiver directly to the vehicle’s battery terminals
using the shortest path from the transceiver.
• If using a noise filter, it should be installed with an
insulator to prevent it from touching metal on the
vehicle.
• It is not recommended to use the cigarette lighter
socket since some cigarette lighter sockets introduce
an unacceptable voltage drop.
• The entire length of the cable must be dressed so it is
isolated from heat and moisture.
2 After the cable is in place, wind heat-resistant tape
around the fuse holder to protect it from moisture.
Tie down the full run of cable.
3 To prevent the risk of short circuits, disconnect other
wiring from the negative (–) battery terminal before
connecting the transceiver.
4 Confirm the correct polarity of the connections, and
attach the power cable to the battery terminals; red
connects to the positive (+) terminal, black connects
to the negative (–) terminal.
• Use the full length of the cable without cutting off
excess even if the cable is longer than required. In
particular, never remove the fuse holders from the
cable.
5 Reconnect any wiring removed from the negative
terminal.
6 Connect the DC power cable to the transceiver’s
power supply connector.
• Press the connectors firmly together until the locking
tab clicks.
Red
Black Fuse holder
Press
firmly.
Fuse holder