Connecting The Power Cords; Ground Information; Negative Ground System; Positive Ground System - Uniden PC78XL User Manual

pc78xl.qxd 2/25/99

CONNECTING THE POWER CORDS

We recommend connecting the power lead to the Ignition Switch
Accessory Terminal. This way, the transceiver is automatically turned off
when the ignition switch is turned off.
Or, the power cord may be connected to an available terminal on the
fuse block, or, to a point in the wiring harness. However, caution must
be taken to prevent a short circuit. If in doubt, contact your vehicle dealer
for information.

GROUND INFORMATION

This transceiver may be installed and used in any 12-
volt DC negative or positive ground system vehicle.
Most newer U.S. and foreign made cars, and small trucks, use a negative
ground system. Some older cars, and some new large trucks, use a positive
ground system.
With a negative ground system, the negative (-) battery terminal is usually
connected to the vehicle motor block. If you cannot determine the polarity
system of your vehicle, contact your vehicle dealer for information.

Negative Ground System

If you have a negative ground system,
connect the red DC power cord from
the transceiver to the positive (+) battery
terminal or other convenient point.
Then connect the black power cord
to the vehicle chassis or negative (-)
battery terminal.

Positive Ground System

If you have a positive ground system,
connect the black DC power cord from
the transceiver to the negative (-) battery
terminal or other convenient point. Then,
connect the red power cord to the
vehicle chassis or the positive (+) battery
terminal.
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