I recently powered up my trusty old SO2R box. It lite up the TX1 red LED which is normal, but both Green LED's were on !?!
If I flipped the RX selection switch from 1 to 2, the Green LED's both went out, but I heard relays close in some of my gear as if PTT had been asserted.
I tried reloading Firmware. That worked fine but that did not help with the problem.
It appears that the TX and RX LED's are driven off the uP. Can I simply replace it and do a Firmware update using the Pgm Jumper?
All voltages look OK inside
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73,
Mike, N1JEZ
"A closed mouth gathers no feet"
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
Mike N1JEZ