Uniden PC78 manual Troubleshooting, Servicing Your Transceiver, Check VOLUME and SQUELCH

Models: PC78

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Troubleshooting

UC343FH 10/23/03 2:32 PM Page 10

Troubleshooting

Problem

Suggestion

Unit does not power up

Check the ignition key position.

 

Check power cord connections.

 

Check fuse.

 

Check vehicle electrical system.

No reception

Check microphone connection.

 

Set CB/WX/PA switch to CB.

 

Check VOLUME and SQUELCH.

 

Check antenna.

 

Check antenna connection.

 

Set RF GAIN to MAX.

Poor Reception

Check VOLUME and SQUELCH.

 

Be sure antenna SWR is normal.

 

Set RF GAIN to MAX.

 

Check and adjust DELTA TUNE.

No Transmission

Set CB/WX/PA switch to CB.

 

Check microphone connection.

 

Check MIC GAIN and adjust to MAX.

 

 

Low Transmission

Be sure antenna SWR is normal.

 

Check MIC GAIN and adjust to MAX.

 

 

If you do not get satisfactory results after performing the above checks, call the Uniden Customer Service Center at 1-800-297-1023, 8:00 a.m. to 5:00 p.m. CST, Monday through Friday.

Servicing Your Transceiver

Technical information, diagrams, and charts are provided on request. It is the user’s responsibility to see that this radio is operating at all times in accordance with the FCC Citizens Radio Service regulations. We highly recommend that you consult a qualified radio/telephone technician for servicing and aligning this CB radio product. Please read the Warning information on page 1 of this Guide.

When ordering parts, be sure to specify the correct model number and serial number of the unit.

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Uniden PC78 manual Troubleshooting, Servicing Your Transceiver, Check VOLUME and SQUELCH, Set RF GAIN to MAX