The 80 meter problem of going to 1.0000 mhz sounds like the 80 meter
band crystal may need to be reseated.
The other problem sound like the RIT pot is intermittent. I would move
the RIT pot back and forth many times and maybe even spray it with a
good contact cleaner.
Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com
On 1/12/2015 9:43 AM, Chris Howard w0ep wrote:
Hi,
A few months ago I bought an Omni-D with power supply from an e-bay seller.
I have been using it, and I enjoy it.
It is exhibiting a constellation of faults which I need to repair.
I would like to run them by the group to see if there is some
common wisdom about them. It may save me some time if I can target
my efforts.
1 - frequency drifting and jumping
This seems to happen on both transmit and receive. Multiple bands.
The amount of drift is about 1-2 kHz. It will usually drift downward
then jump up. This happens when I am not touching any controls.
2 - frequency loss
I have only had this happen on 80 meters. The frequency will jump
much farther and/or the display will go to 1.0000
3 - low output
Output while transmitting will fluctuate.
All of these problems seem to go away if I let the radio warm-up for an
extended period.
My main tuning knob seems to turn easily enough, and all of the other
controls seem to work ok. I don't notice any improvement or change
by jiggling the bandswitch knob.
My only attempt at repair, so far, has been to remove the top and bottom
covers and re-seat all of the circuit boards I could find that had
the pin connectors. I did that yesterday, but still experienced
drifting/jumping afterwards.
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