Hi JB and everyone. Hope all good with you all. I have a Duo here now that works fine but any slight knock on the top of it, both tuners stop working. I have taken the lid off and tried to knock areas of the the board to make it do it while working. I cannot get it to show the fault, (wierd!) Obviously must be a dry joint you would think. Any thoughts of possible component fault please? Thanks. Regards, Jules.