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Use the following procedure to connect the DC cable:
Before connecting the DC cable to the battery, measure the voltage across the battery
terminals with the engine running fast enough to show a charge. If the voltage is
above 15 Volts, the vehicle's voltage regulator should be adjusted to reduce the charg-
ing voltage below 14 Volts.
With the radio end of the cable disconnected, connect the RED cable lead to the
POSITIVE battery terminal, and the BLACK cable lead to the NEGATIVE battery
terminal. Make certain that the battery terminal connections are tight, and remember
to check them periodically for signs of loosening and/or corrosion.
Make sure the POWER switch on the VX-1400 transceiver is off, and plug the DC
cable into the INPUT jack on the rear panel of the transceiver.
In mobile installations, check to ensure that the transceiver POWER switch is
turned off whenever starting or stopping the engine, to avoid potential damage from switch-
ing transients.
VX-1400
VX-1400 O
R
M
I
NSTALLATION
B
I
12V Battery
FUSE: 25A
RED
BLACK
11
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