ASR 33 buzzing

tony duell ard at
Fri Oct 14 23:46:33 CDT 2016

> So I've got the machine being quiet now (no buzz).  And I've confirmed the unit does 
> not try to engage the motor unless switched to Line or Local mode.  The second you
> turn the switch, the motor does about a 1/4 turn and then there's a visible spark from
> the bottom of the fuse holder.  So I'm guessing this must be caps or something 
> drawing too much power somewhere.

I assume this is with a good fuse in the holder. Without it, the motor should not be
powered at all. 

I would try removing the belt so as to remove the load from the motor. And then 
check the motor capacitor and starter relay (if there is one).


More information about the cctalk mailing list