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FT-980 SHIFT pot

 

Gyus,

I am seeking your advice on the WIDTH/SHIFT pot... perhaps a well known problem but I am new to these radios.? I am in custody of two FT-980s that a local Ham donated to me recently.? Both had the SHIFT shaft cracked (the part past the Y split). I reinforced one shaft, electrically restored the radio and finally put in on the air, only to realize that the SHIFT broke off completely.? Sad story, and this otherwise fine radio is now defaced.? I would like to restore it. Having a replacement part would be ideal but it could be my Christmas wish, right?? HI.? So I am thinking about a repair.? Is there a way to disassemble the pot and replace the shaft only?? The shaft looks like a relatively common JA part from the 80-ties and perhaps could be had from other radios.

73, Wald N4PL

Rigs here:
FT-980
Tempo 2020
Uniden 2020
FT-101E
Drake C-line
Elecraft K3
 

Hi Wald,
I have never heard of your problem before. I did a search of the old messages and found nothing. Looking at the location of the shift/width controls and the fact that you have two FT-980's damaged the same I would say that they had both been picked up incorrectly. Instead of both hands at the sides there was one hand at the right front (under the shift/width controls) and another hand on the rear left. Hopefully one of the FT-980's is working OK.
The width control is a pot while the shift control is a 31 position encoder. I have uploaded the technical manual. Take a look at pages 137, 173 and 174 (not Yaesu page numbers but your pdf? reader page numbers).
It looks like the assembly is specific to the 980. Possibly someone is parting out one. I would try eBay and HiFiSSB in the UK. It's also possible that Yaesu parts has one somewhere.

73 Roger VE7LB
 

Hi Roger,

Thank you for all the research you have done for me.? It is a big help.? I downloaded the manual so I am all set to search for the part.? I agree with you that the rigs must have been mishandled, in the same unfortunate way.?

I checked eBay and HiFiSSB sites.? No such parts.? HiFiSSB does not have this rig model on their list.? So the hope is that someone, perhaps on this list (yes, right now it is fairly thin but may grow over time) is parting a radio.? If you hear of someone doing so please let me know.

In the meantime I shall search similar-sounding models like the '990.? Maybe there is some part commonality.? I will also contact Yaesu parts and see what they say.

73 and HNY
Wald N4PL
 

Wald (and all),

Look at the Kenwood TS-930/TS-940 'Slope Tune' control as a potential donor source for those parts.

I see '980 pots and entire front panel assemblies come up for sale from time to time on eBay. I own four of the rigs and thus have needed a source of spares to keep mine going.

73 - Fred, N8YX

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