ASR 33 buzzing

[tony duell]

> 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).

-tony