Azur 640c v2 problem?

[kilohawk]

My 4 year old 640c has slowly been getting a fault with the front panel buttons!

First it was the pause/play button, and now the open/close button too.

Is there any way to fix this? I've searched the Internet but found no solutions

 

[lucid]

It could be something as simple as a bit of vanishing of the contacts. If you are comfortable working with electronics then you could try stripping the unit down and cleaning them with switch cleaner.