Radio; Dc Power And Wiring; Antenna System; Radio Location - Kenwood NX-720 Service Manual

3-3. Radio

The universal mount bracket allows the radio to be
mounted in a variety of ways. Be sure the mounting surface
is adequate to support the radio's weight. Allow sufficient
space around the radio for air cooling. Position the radio
close enough to the vehicle operator to permit easy access
to the controls when driving.

3-4. DC Power and wiring

1. This radio may be installed in negative ground electrical
systems only. Reverse polarity will cause the cable fuse
to blow. Check the vehicle ground polarity before installa-
tion to prevent wasted time and effort.
2. Connect the positive power lead directly to the vehicle
battery positive terminal. Connecting the Positive lead to
any other positive voltage source in the vehicle is not rec-
ommended.
3. Connect the ground lead directly to the battery negative
terminal.
4. The cable provided with the radio is suffi cient to handle
the maximum radio current demand. If the cable must be
extended, be sure the additional wire is suffi cient for the
current to be carried and length of the added lead.
4. INSTALLATION PLANNING – CONTROL STATIONS

4-1. Antenna system

The antenna system selection depends on many fac-
tors and is beyond the scope of this manual. Your KEN-
WOOD dealer can help you select an antenna system that
will best serve your particular needs.
GENERAL

4-2. Radio location

Select a convenient location for your control station radio
which is as close as practical to the antenna cable entry
point. Secondly, use your system's power supply (which sup-
plies the voltage and current required for your system). Make
sure suffi cient air can fl ow around the radio and power sup-
ply to allow adequate cooling.
SERVICE
This radio is designed for easy servicing. Refer to the
schematic diagrams, printed circuit board views, and align-
ment procedures contained in this manual.
NOTE
If you do not intend to use the speaker 3.5-mm jack, the
D-sub 15-pin connector and SMA connector, fi t the supplied
speaker-jack cap, ACC cap and SMA cap to stop dust and
sand from getting in.
Antenna
connector
NX-720(G)/720
Speaker
jack cap
ACC.
ACC. cap SMA
GPS model only
Power input
connector
3