The display on my venerable FT-480R all mode 2m rig quit. It did it once before, but magically came back. Now it's staying off. All TX and RX still works. Anyone know if this is or was common, and (fingers crossed) what the problem is caused by? I opened it up and didn't see anything obvious. adTHANKSvance es 73 de Mark KX8XX ...-.- . .