50
Appendix A - Troubleshooting
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 IEC/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
• adjust fitting between speaker and chassis
in contact with the chassis/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
• re-trace the setup procedure or contact your nearest AMR
distributor/dealer
Abbingdon Music Research is a subsidiary of the Abbingdon Global Group
22 Notting Hill Gate; London; W11 3JE; United Kingdom;
Tel: +44 (0) 870 420 5505; Fax: +44 (0) 700 596 1065
www.amr-audio.co.uk
Summary of Contents for AM-77
Page 1: ...AM 77 Reference Class Dual Mono Pre Main Amplifier Owner s Manual Ver 3 6 3...
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Page 36: ...36 Mode II Pre Main Monoblock amplifiers...
Page 38: ...38 Mode III Pre Main Bi amplifier horizontal bi amping...
Page 40: ...40 Mode IV Power Stereo amplifier...
Page 42: ...42 Mode V Power Monoblock amplifier...
Page 44: ...44 Mode VI Power Bi amplifier...
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