[TenTec] Little problem with Omni D display

[Mike Bryce]

Hi, Jon,

first off are you sure the Omni D you’re working on has the 30 meter band? That was an option. Ditto 17 and 24 meters.


I don’t remember if the presets are done with diode or resistors. I’ll have to look.

mike, wb8vge

“The trouble with quotes on the Internet is that you never  know if they are genuine”

—Abraham Lincoln

> On Apr 30, 2021, at 6:07 AM, Jon Iza <jon.iza at gmail.com> wrote:
> 
> Folks,
> I am fixing an Omni D and, after solving a problem with the MC14528 on
> the timebase board, now one of the presets does not work as expected.
> I get consistent measurements of the VFO frequency on 1.8, 3.5 and 7
> MHz. On 10 MHz the display shows 30.xxx and on the upper bands the
> display show 8 MHz less than the expected (06.xxx for 14, 10.xxx for
> 18, ... up to 21.5xx for 29.5 MHz). The preset voltages  show up on
> the preset-amp board.
> Any hint on where to look? The presence of display multiplexing
> signals makes difficult to me to trace the problem.
> Thanks for your help.
> jon, ea2sn / ae2sn
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>