Removing and reseating plug in boards and a de-oxit treatment of switches and controls has cured the issue!
Next thing is checking why output power is a little low. I am showing about 85 watts cw on all bands.
KL7AM
----- Original Message -----
From: Felsummers <felsummers@...>
To: Yaesuft301D <
[email protected]>, W7Apm <w7apm@...>
Sent: Sat, 12 Nov 2022 16:13:32 -0500 (EST)
Subject: Re: [yaesuft301d] VFO Issues
I would look closely at the VFO/EXT function switch and wiring for continuity. ?
On Nov 12, 2022 at 9:37 AM, <
KL7AM> wrote:
I have a 301D with the outboard VFO and neither vfo seems to function, I haven't found a schematic that shows how the external vfo output is switched into the radio.
Is anybody familiar with vfo issues with this rig? It doesn't seem reasonable that both vfo's are faulty. The radio seems to function normally otherwise. I am unable to hear the vfo working on a receiver with a test loop or measure any output on a scope.
KL7AM
