Abbingdon-music-research LS-77 Reference Class Manual do Utilizador descarregar pdf (Página 13)

Troubleshooting

Symptom Possible cause Solution

No sound • incorrect audio cable connections • connect the cables correctly

• incorrect amplifier operation • make sure that the input selector on

the amplifier is set to the desired source

Sound with no bass • check speaker connectors are not • check polarity using the AMR test CD and

and generally strange connected with wrong polarity correct if required

Sound is too bright or • Incorrect placement of speaker • Place speaker with high frequency driver upright dull

and at ear hight, pointing at the listening position

• Incorrect adjustment of HF Level • Adjust HF level as per Appendix A

Bass is too full or lean • Incorrect placement of speaker • Place speaker correctly

• Incorrect use of port inserts • Add (if too full bass) or remove (if too lean bass)

port inserts as required

Other problems • re-trace the procedure or contact your nearest AMR

distributor/dealer

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Abbingdon-music-research LS-77 Reference Class Manual do Utilizador Página 13