TRC-437  (210-1553)          Troubleshooting            Faxback Doc. # 8900

If your CB is not working as it should, refer to the following chart to see
if you can eliminate the problem.

If the problem persists, take the CB to your local Radio Shack store.  Do
not attempt repairs or adjustments yourself.

Symptom.............................Check & Solution

Trouble.............................Check to see if the CB is turned on.
receiving...........................Adjust the volume.
                                    Turn SQUELCH to the left.
                                    Secure the microphone connection.
                                    Secure the antenna connection.

Trouble.............................Secure the antenna connector.
transmitting........................Extend the antenna to its full length.
                                    Clean and tighten all connectors.
                   Be sure you are pressing the talk button all the way in.
                       Firmly press the microphone connector into the jack.

CB does not....................................Secure the power connection.
work at all....................Check the fuse and replace it, if necessary.

REDUCING NOISE

Because your CB is exceptionally quiet, any noise you hear is probably from
an external source in your vehicle, such as the ignition, another CB, or
spark plugs.

To solve the problem, you must find the source of the noise.  You can
determine the source of the noise by turning off the engine and operating
the CB with the ignition set to ACC.  If most of the noise goes away, the
problem is in your vehicle's ignition or electrical system.  Otherwise, the
problem is in your CB or is being caused by other electrical equipment.
Here are a few hints to help you reduce or eliminate such noise:

*  Make all CB power and antenna wires as short as possible.

*  Route the power wires away from antenna wires.

*  Be sure that the ground connection (black wire) is secure.

*  Replace old ignition wires with new, high-voltage, noise-suppression
   wires.

*  Install noise suppressors on your spark plugs, or install new spark
   plugs that have built-in suppressors.  If problems persist, check your
   regulator, alternator/generator, and gauges.  You can reduce the noise
   from these sources by using bypass capacitors at the various output
   voltage points.  Your local Radio Shack store has a wide selection of
   noise-suppression accessories.

(smc-03/03/94)