[sdiy] Kurzweil K2000 Query

[DTK]

I'm taking a look at a K2000 for a friend.  It's exhibiting a strange
problem... at least, I think it's a problem.  If I hadn't been there when it
happened, I might have thought it was nothing.

We were playing, and suddenly the K2000 lost volume...  It wasn't a dramatic
loss, the patch was still audible, but there was *definitely* a loss in
volume.  The patch wasn't changed or edited, mixer settings weren't changed,
etc.  It just got quieter all of a sudden.

At first we thought it might be some sort of mechanical failure in the
output jack... A solder joint on the way out, or a worn out center
connection.  However, that doesn't seem to be the case.  The problem
persists on the L, R, and Headphone jacks, and on different patches as well.

I'm a bit puzzled by this one, frankly.  There's no difference in the audio
quality, which leads me to think that the output circuitry is ok.  Anyone
have any thoughts?  Suggestions?

As a side note, the battery in this K2000 is DEAD... 0.0v according to the
warning when we power it up.  I don't think that would have anything to do
with the problem, but please correct me if I'm wrong!

Thanks for any insights you may have...

DTK