No power out on a new Flex Refurbed 6500. Just purchased and received from Flex, so it has the latest software and Flex's guarantee. Receive functions seem perfect. The antenna tune function seems to be working and declares "success". However clicking the mike in any modulation mode generates a spike on the panadapter but no action on the RF Power or SWR sliders, and a watt meter into a dummy load shows no power out. I do have the correct microphone selected. Any other ideas?