This discussion is fascinating. I hope it leads to a definitive fix.
My Orion gets into the stuck RIT mode fairly often, but I (almost?)
always find that it goes away if I grasp the RIT encoder knob and pull
firmly outward. Others have reported this, and it naturally leads you
to think about a bad encoder or solder joint. But possibly I am flexing
the board to jostle the connector just enough to clear the tin/tin oxide
barrier - if that's what it is.
A permanent fix might be to add some bias current to the appropriate
circuit path - a milliamp, maybe. Or get a cable with gold plated
connectors. (Or put in a cell phone vibrator to loosen things up on
Martin Ewing, AA6E
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