Korg Poly-61 – Fixing Non Working Keys

This Korg Poly-61 had issues with around 10 of the buttons where they did not generate any notes. The keyboard in the Poly-61 uses membrane buttons which have a rubber dome with a conductive plate which is pushed down on the circuit board. The conductive part tend to go bad over the years so in this video I refurbish this using a pencil eraser. This procedure also works on other keybards which have similar keyboards (e.g. Korg Polysix)

 

PCB removed from keyboard

 

Membrane buttons removed from keyboard PCB

 

 

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