Thanks again for all the discussion and advice and especially the photos. I'm not really averse to opening a case and fixing what's broken. I've dived into my laptop recently to replace the hard drive with an ssd for example. But I have the service manual and that was relatively easy. Based on the very revealing photos and the possibility that it may not even be the switch that's at fault, I'm convinced that the best solution is to have Uniden figure it out. This isn't like the old days before multi-layer circuit boards and ICs, when testing and replacing discrete components like tubes (I just revealed my age) and transistors, resistors, capacitors, etc. was a breeze. Here's hoping Uniden is up to the task.