Radar Detector  (220-1646)    Troubleshooting    Faxback Doc. # 6231

If the radar detector does not turn on:

  Be sure all power connections are secure.  Be sure the cigarette-lighter
  plug's tip is tightened.

  Check the fuse that controls power to the cigarette-lighter socket.  See
  your vehicle's owner's manual.

  Check the fuse in the cigarette-lighter plug.

  The cigarette-lighter socket might be dirty.  Clean it with a fine emory
  cloth to give a good, clean connection.

  CAUTION:  Do not place any metal object other than the cigarette
            lighter or a cigarette-lighter plug in the cigarette-lighter
            socket.  Doing so could blow a fuse in your vehicle or cause
            the metal object to become very hot.

If the radar detector gives a false alert when the vehicle hits bumps:

    Check the power connections.

If the radar detector gives a false alert when you use vehicle accessories
such as power windows, motorized mirrors, brakes, and so on:

    Check the vehicle's electrical system, including main battery cable
    and alternator connections.

    Install a filter capacitor (470 microF, 35 volts, such as Cat. No.
    272-1030) on the back of the cigarette-lighter socket, across the
    power connections.

If the radar detector successfully performs the self test, but does not
respond to radar signals:

    A police car might not be equipped with radar, or might be using
    instant-on-radar.

    Police might be using VASCAR-type speed detection.

If you are unable to solve the problem after referring to this guide, the
radar detector might require service.  Take it to your local Radio Shack
for assistance.

(CJD/all-06/06/94)