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It's a Roland HP-7e digital piano about three years old.

Some notes much too loud. Could the pads/contacts under the keys be worn out? It does get heavy use. If it's just dust, how do I open the piano to clean it?

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You may need to clean the contacts which are usually conductive rubber. I explained stuff for another Roland problem with two keys that were intermittent. I have an EP-7 that I had to do the cleaning of the key contacts. Use 91 or 99 % Isoprophyl alcohol to clean BOTH the conductive "pill" (Black under silicone rubber domes) AND the traces on the board where they press. Clean gently as the traces have a hard black coating.

Posted on Jul 29, 2009

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