parts required for behringer eurogrand piano

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trying to source some spareparts.


some of the keys have stopped working. i am after both pcb's aswell as the rubber keytops. im assuming the contacts have worn between the rubber and the pcb itself. have tried cleaning with no success and know that the board is faulty for the right hand side of the piano.. would like to order both so as to prevent happening on both sides in the future.