MPA-45  (320-2035)            Troubleshooting          Faxback Doc. # 15700

If you have problems with the amplifier, use the following checklist to 
find the problem.

    Check all the connections.

    Be sure none of the speaker wiring, microphone cables, or other 
    connecting cables are defective.

    Be sure you have provided adequate ventilation.

    Be sure you correctly calculated the total speaker impedance.

    Be sure the speaker wire you use is a large enough gauge:  18- gauge 
    for lengths of wire up to 25 feet-7.5m and 16-gauge for lengths over 25 
    feet-7.5m.  For the best results, we recommend you use the shortest 
    length of wire possible.

    If you have feedback problems, reposition the microphone and speakers 
    and adjust the FREQUENCY EQUALIZER controls if necessary.

    If the amplifier does not work at all, check the amplifier's fuse (on 
    the back panel).  If the fuse is blown, replace it with the supplied 
    spare fuse or an identical 1-amp, 250 volt fuse (CA: 2-amp, 250-volt 
    fuse).

If none of the above solves the problem, take the amplifier to your local 
Radio Shack store.  Our personnel will assist you and arrange for service,
if needed.


(SP/all-06/28/95)

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