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Static/crackling Noise

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schoolcomm

schoolcomm

Technical User
Oct 31, 2011
2
US
Have a KXT-D1232 v3 set up in one of schools. Recently it started to make a very loud static/crackling noise when an ext. is picked up. It seems to stop after dial tone is obtained. Have checked everything I can think of, even bringing it down to the bare system with nothing connected but noise continues.

Any ideas?

Thanx.
 
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Figured it out. Bad cabinet. Once Master/slave was swapped noise gone except for the two ext. on the bad cabinet.

Thanx
 
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