Figure 2 - Typical Installation
6
Figure 6 - Power Cable
Certain problems maybe encountered when accessory equipment is
connected to the ignition or accessory lines. In some vehicles these
lines have large filter capacitors or a leakage path is present.
If the equipment does not turn off within a reasonable amount of time
after the ignition is turned off, first verify that the radio jumpers are in
their correct positions. Next, try a different accessory or ignition sense
pick up point. Many vehicles have more than one circuit that is
switched by the ignition switch, and one may be available that does
not have large filter capacitors or a leakage path.
If a different pickup point cannot be found, try adding a 470-ohm, 1-
watt resistor from the ignition sense pickup point to ground. This will
discharge the capacitor(s) or reduce the leakage voltage. Current drain
through this resistor will be minimal (less than 0.03A) when the igni-
tion is switched on.
CAUTION
On some accessory points, the voltage only drops when the ignition
switch is in the START position. A connection point should be used
where the voltage is completely off when the ignition switch is in
the START position.
NOTE
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