[TenTec] OMNI-VI problem

Dr. Gerald N. Johnson geraldj at weather.net
Tue Oct 6 16:45:30 PDT 2009


On Tue, 2009-10-06 at 16:28 -0400, K8mp at aol.com wrote:
> Interesting... 
> "Grabbing at straws", I removed the back-up battery to force a hard
> reset of the microprocessor and voila, all seems well again.
> FYI: the battery still reads 3 volts...

What's the battery voltage under load (e.g. power off)?

When's the last time the battery was replaced?

Might be time for a new battery.

Might be a problem with the power supply to the microprocessor, a bit
low or a bit bad bypass (electrolytic or tantalum) causing it to misread
ROM and go wild. The radio is old enough to have battery and
electrolytic capacitor problems. I have an Yaesu FT-726 doing similar
odd things and I know its battery is going on 20 years old.

73, Jerry, K0CQ



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