Patches and discussion for Ensoniq VFX family

On Thu, 2009-01-22 at 15:23 +0000, markbreton@... wrote:
> Thanks.  In this instance, actually, I got lucky in that my engineer 
> friend was able to troubleshoot the problem all the way back to the 
> transformer. the fuse link that is shorting is getting too much 
> amperage from the transformer. i put a 2amp fuse in it and for a 
> couple of seconds it sounded glorious!! but then the with the wrong 
> power level getting through it started sounding bad again.  So i am 
> going to order a new transformer from thesoniq for it.  i know i am 
> going to keep track of all of these troubleshooting tips for the 
> future.  it's like trying to keep an old hoopty running.  you love 
> it, but it requires a lot of tenderness! 
> 

No, wait, don't - I've never ever heard of a transformer failing in a
way that would cause that.  Not saying it can't happen, but I've never
heard of *that*...

It's far more likely to be one of the diodes in the rectifier.  You need
to check them, and if one has gone change the whole lot.

Gordon