On the Facebook BK7M users group someone was looking for a replacements for the selection/jog wheel on the unit. It is also on others untis such as my BK9. someome commentedd that this is a common problem as the wheel was not meant for heavy use. ( From now on I will use my IPAD App for the BK for editing )

Instrumentalparts.com has the wheel and parts for many other keyboards. Good to know. I'm going to buy one just because $20 piece of mind.
cool
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer