Univex AM-77 owner manual Appendix Troubleshooting

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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