key contacts

Hi there, I’ve been 2 days enjoying my Prodigy. Yesterday a programmed a fast decay/release bass sound and playing some octavation I discovered that the filter was being double triggered. So I’m pretty sure I have dirty/ oxide keyboard contacts. Any suggestion? I will be opening the synth next weekend and make some inspection.
Should I spray them with contacts cleaner? Or go directly to carefully sand the dirty part of them as some webpage says?

Thanks in advance,
Augusto.

I don’t know if if the contacts are the same as the micro moog’s,.but I use a little caigs detox-it. I just spray it on a little cotton cloth and wipe down the bar and wires. Good to go