Abbingdon Music Research LS-77 owner manual Troubleshooting

Models: LS-77

1 53
Download 53 pages 24.66 Kb
Page 23
Image 23
Section 7 - Troubleshooting

Section 7 - Troubleshooting

Figure 7.1 Troubleshooting Guide

 

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 correct if

and generally strange

connected with wrong polarity

required

Sound is too bright or

• Incorrect placement of speaker

• Place speaker with high frequency driver upright and at /

dull

 

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 as per Section 2

 

• Incorrect use of port inserts

• Add (if too full bass) or remove (if too lean bass) port

 

 

inserts as required

Other problems

 

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

 

 

or contact your nearest AMR distributor/dealer

23

Page 23
Image 23
Abbingdon Music Research LS-77 owner manual Troubleshooting