To: vintagesynthrepair@yahoogroups.com
Sent: Tuesday, July 14, 2009 9:16:43 AM
Subject: [vintagesynthrepair] Kurzweil K2000 Query
I'm taking a look at a K2000 for a friend.
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.
There's no noticeable difference in the audio quality. However, as time has passed we've noticed the volume loss seems to be slowly getting worse. I'm thinking maybe something is going out in the final output stages, but I've no idea where to look.
A user on another list suggested checking the batteries, but there are no batteries in this particular unit, and there haven't been for quite some time. The owner just uses it for the stock sounds, and as a controller.
Anyone have any thoughts? Suggestions? I'm going to see if I can google up a schematic, any pointers there would be welcome also.
Thanks for any insights you may have...
DTK