Appendix- Troubleshooting

Figure A.1 Troubleshooting Guide

 

Symptom

Possible cause

Solution

With power ON

• poor/no power plug connection

• insert the power plug firmly into the AC

no power is registered

at mains power point

 

 

• blown fuse at mains plug

• check and change mains plug fuse

No sound

• incorrect audio cable connections

• connect the sources to the AM-77 correctly

 

• incorrect amplifier operation

• make sure that the input selector on the AM-77 is set to

 

 

the desired source

Strange ‘blast’ sound

• check speaker connectors are not

 

in contact with the chassis and

adjust fitting between speaker and chassis connectors and terminal. Ensure no contact between chassis and spade terminals (no ‘short circuiting’)

Remote control does

• remote control batteries have

• replace 2 x AAA batteries

not work

expired

 

 

• object obscuring remote sensor on

• remove any objects directly in front of the AM-77

 

the AM-77, no ‘line of sight’

 

A ‘humming’ sound

• loose cable connections

re-attach the loose cables correctly

can be heard

 

 

Front switches ‘jump’/

• static electricity

• ‘Touch’ the chassis prior to pressing a sensor to dis

enter Standby

 

charge. Then press the desired sensor

Other problems

 

• go to the Contents section and re-trace the procedure

 

 

or contact your nearest AMR distributor/dealer

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Univex AM-77 owner manual Appendix Troubleshooting