Please note that these parts are sold as a convenience to Studiologic/Fatar customers who have the expertise to work on their keyboard themselves. If you are not a technician, very comfortable working with these types of electronics OR your keyboard is STILL Under warranty, please contact studiologic@americanmusicandsound.com for the nearest authorized service center. Be sure you have ordered the correct item; parts are non-returnable and non-refundable. Please contact us if you have any questions before you place your order.