Hi
I just bought a Roland sh-2 and sometimes when I release a key the note will trigger again. This seems to depends on how fast I release the key.
Is this due to dirty key contacts, or is it something more problematic? If it is dirty contacts, how do I get to them and what do I clean them with? I know how to take the keys off the synth, I just don't know how to get any further!
If it's something more problematic, is it going to be expensive to fix?
Thanks.

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Vaughan