[TenTec] 1254 Shortwave Kit question

[Talbot, George A.]

I got the following from a friend who is building the kit with his son. Any
help would be appreciated. His son, Nathan, is a high school student and I
got them the Kit for Christmas to spur his interest in Radio and listening
to HF comms with Aircraft.


> Not much new on the radio kit.  Nathan and I have both gotten
> involved in a bunch more stuff lately, and I really want to
> build it together.  I'm pretty sure there's a bug in the
> processor.  If it's hooked up as designed, it will tune down
> but not up.  It turns out one of the two sense pins on the uP
> is oscillating.  If I swap that and the common to the knob
> encoder then it kind of tunes up but still tunes down OK.

Any one had a similar problem with the Sense Line oscillating?

Thanks in advance for your help,

George V73GT