15
TROUBLESHOOTING
If your CB is not working as it should, follow these suggestions to see if you can elim-
inate the problem. If you cannot, take the CB to your local RadioShack store for as-
sistance.
Symptom
Check/Try
CB has trouble receiving.
Turn CB power on.
Microphone connected? Secure connections.
Antenna connected? Secure connections.
Too much squelch? Adjust as needed.
Radio not on an operating channel? Switch to an
active channel.
Adjust VOLUME.
CB has trouble transmit-
ting.
Turn power on.
Antenna connected? Secure connections.
All connections free of corrosion? Clean and tighten.
Microphone connector loose? Firmly press connector
into MIC jack.
Radio not on an operating channel? Switch to an
active channel.
PUSH TO TALK fully pressed? Press completely.
Radio does not work at all. Power connected? Secure connections.
Microphone connected? Secure connections.
Antenna connected? Secure connections.
Fuse needs replacing? Replace with identical fuse.
See “Replacing the Fuse” on Page 17.
Cannot select a channel.
PUSH TO TALK pressed? Release PUSH TO TALK.
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16
CARE AND MAINTENANCE
Your RadioShack TRC-502 40-Channel Mini Mobile CB Radio is an example of supe-
rior design and craftsmanship. The following suggestions will help you care for your
CB so you can enjoy it for years.
Keep the CB dry. If it gets wet, wipe it dry immediately. Liquids might
contain minerals that can corrode the electronic circuits.
Use and store the CB only in normal temperature environments. Tem-
perature extremes can shorten the life of electronic devices, and distort
or melt plastic parts.
Keep the CB away from dust and dirt, which can cause premature wear
of parts.
Handle the CB gently and carefully. Dropping it can damage circuit
boards and cases and can cause the CB to work improperly.
Wipe the CB with a damp cloth occasionally to keep it looking new. Do
not use harsh chemicals, cleaning solvents, or strong detergents to
clean the CB.
Modifying or tampering with the CB’s internal components can cause a malfunction
and invalidate its warranty and void your FCC authorization to operate it. If your CB is
not performing as it should, take it to your local RadioShack store for assistance.
21-1702a.fm Page 16 Thursday, August 26, 1999 4:59 PM