[SBE] Symetrix 528E switch help

[Edwin Bukont]

Please reply off list if possible as I do not seem to be getting the radio-tech list reflector

 

I have five Sym 528E mic processors all with the same issue.

 

Units were mounted one atop the other is a wooden rack in a studio with no HVAC.  The room itself was probably 95-deg and the units were literally tooo hot to touch.

 

All the units exhibit the same issue.  Audio does not flow reliably through the unit.  The problem is the blasted plastic shadow (might be other manufactuer) alternate action push button switches.  They look like shadow anyway. Excersizing them does seem to help, but the audio remains intermittent, operating best if the switch is held firmly in.

 

I think the high heat might have corrupted the conductive lubricant that I understand is contained within the switches.  Is anyone familiar with a lubricant that can be used to restore proper contact operation of the switches? 

 

OR..is this a familiar problem that necessitates component replacement?

 

These units are only 6 yrs old, have seen very little use.  Sym wants $100-240 per unit plus shipping for repair.  I can buy an 8-channel preamp for less than that.

 

Thanks

Edwin Bukont CSRE, DRB, CBNT 
V- 240.417.2475; F- 240.368.1265 

 




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