Thanks to several immediate responses:
TR& is working again as it should.
After checking to be certain that the rig was actually running at 12MHz
(it was), I just did a very light application of Deoxit to the band
select switches. These were very clean...no hint of the common black
oxidation.
After the deoxit, rig is working fine again.
Not an easy task to do an extensive cleaning on these band switches is
it? fairly major dis-assembly would be required to get at all of them.
BTW, is there ever any issue with the staking connections between the
switch terminals and the small extenders that are soldered to the
boards? Seems like a prime spot for corrosion induced issues.
Thanks
Curt
KU8L
Curt Nixon wrote:
GM All:
Hope you all are keeping warm. 10F here and all antennas iced up.
Have a problem that just started over the weekend with the TR7 here.
All works fine except when I try to select 14MHz. the display goes to
12xxxx MHz.
If I start at 21 and step down with the 500K dwn button, it goes to
14500 and then the next step goes to 12000 stepping back up 14 comes
back on.
I havent checked yet to see if it is actually running on 14 but
displaying 12 but it is stable there...not flickering or anything.
Common problem?
Boards have not been re-seated in a while but rig has not been stored.
Use this rig nearly every day. and it has been running great.
Curt
KU8L
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