X K Ka Superwide Radar/Laser Detector
(220-1656)                 Troubleshooting            Faxback Doc. # 18230

If you have problems operating your radar/laser detector, the suggestions
in this section might help.  If you cannot solve the problem after trying
these suggestions, take your detector to a Radio Shack store for
assistance.

If the detector does not turn on:

    Be sure all power connections are secure.

    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.  See "Replacing the
    Fuse," below.

    The cigarette-lighter socket might be dirty.  Clean it 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 detector gives a false alert when the vehicle hits bumps in the
road:

    Check the power connections.

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

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

    Install a filter capacitor (1000 microFarads, 35 volts, such as 
    Cat. No. 272-1032) on the back of the cigarette-lighter socket, across 
    the power connections.

If the detector performs the self-test, but does not respond to radar
signals when you see a police car:

    A police car might not be equipped with radar, or might be using
    instant-on radar (see the separate booklet "Questions and Answers About
    Vehicle Speed Detection").

    Police might be using VASCAR-type speed detection (see the separate
    booklet "Questions and Answers About Vehicle Speed Detection").

If the detector has poor laser detection range:

    Be sure the laser detection lens is not obstructed.

    Use lens-cleaning solution to clean the laser detection lens.

REPLACING THE FUSE

If the detector stops operating, check the fuse in the DC power cord's
cigarette-lighter plug.  If it has blown, follow these steps to replace
it.

1.  Carefully unscrew the tip of the fuse holder.

2.  Remove the tip from the fuse holder, then remove the old fuse.

    NOTE:  The tip is in two pieces.  Take care not to lose either piece
           or the spring inside the holder.

3.  Replace the fuse with a 2-Amp, 1 1/4 x 1/4, fast-acting fuse
    (Cat. No. 270-1007).

    CAUTION:   Using a fuse that does not meet these ratings or defeating
               the fuse protection can damage your detector, or the
               vehicle's electrical system.

4.  Press the fuse holder's tip down into the body, then screw it back in.

    CAUTION:  Be sure you press the fuse holder's tip down before screwing
              it in, or you might damage the fuse holder.


(PH 11/9/95)