John
I keep seeing examples of this and so far I have not seen an easy cure.
I can warn you however....If you start messing those crystals and
attempting to "peak up the coils" you risk upsetting the VCO lock and
before you know it your frequency is jumping all over the place. Those
crystals change frequency over the years and the VCO is supposed to pull
them back on frequency. The VCO is locked with the master CPU oscillator.
Feel fortunate that it still works at all. I believe TenTec has totally
quit working on them. Personally I consider them EOL....End of Life.
Let us know if you discover a fix.
73
Steve N4LQ
On Thu, Feb 23, 2017 at 5:58 PM, John Callari <john.callari@gmail.com>
wrote:
> Hello all..
>
> I recently acquired an Omni VI... After warming up, some bands are dead on
> (17M, 15M), some are off a little bit (40M, 80M) about 500 Hz and 20M is
> off by nearly 1.5 kHz.
>
> I've worked on some of my older Icom rigs (751, 745, 765) and was able to
> re-calibrate them and re-align... but that was following the service
> manuals...
>
> Any suggestions on the best way to fix this... From what I've read and
> looking at the manual, I'm guessing that my problem is with the band
> crystals on the XTAL OSC/ LO board...
>
> Any help would be much appreciated.
>
> Thanks!
>
> John
> K2JNC
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|