This
is a known problem and you can try the following solutions, from simple to
possibly expensive (depending on your own capabilities):
1. The wheels' potentiometers probably havn't been
moved for a while and gathered dust. Try moving both wheels for a while. This
could already help.
2. If
this doesn't help you got to flip open the cover (4 screws on top) and check the
connector where the wires coming from the wheels connect to the board.
Unplugging and replugging a couple of times is a fair cleaning
procedure
3. The
potis themselve could be cleaned using a spray (not as simple as it sounds
because the housing can be kind of sealed and, if you cannot
disassemble it you might need to drill a small hole to inject the cleaning
fluid. People recommend a spray being used to clean brakes of cars or motor
bikes (!) - no contact spray, this would cause damage to the resistor
layer.
4. Find a replacement for
the potentiometers.
To get
access to the potis you have to remove another 4 srews holding the cover with
the floppy and wheels from the bottom.
Let us know if anything helps.
Hans
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Hello,
I am new to this group as I just recent purchased an Ensoniq
SD1 on
eBay. When I received it, everything worked just fine until I
started to try the Pitchbend and Mod wheels. Then after I tried to
use
them, when I would play the piano keys, the notes would be all
shaky and
jump to higher pitches, even after I returned the wheels to
their basic
non-effect positions. So I turned the keyboard off.
Then I turned it on
again, and things worked just fine for several
hours until I was done
using it.
The next day, it would work fine for about 30 minutes, then
without
even touching the wheels, the notes would go all shaky
again.
These keyboards are extremely difficult to find in Europe so I
am
wondering if this problem is not too expensive to repair, if it is
even at all possible?
If anyone has any suggestions, please let me
know.
Thank you very much for your time.
