[Kenwood] TS-850SAT - Curious Fault.

[Eddie G0EHV]

> Dear All,
> I have a TS-850SAT with a curious fault. The symptoms are as follows:
> If the radio is on VFO B, on a frequency BELOW 10.000 MHz, and the HIGH 
> CUT
> SLOPE TUNE control is moved off its fully clockwise (In-active) end-stop,
> the frequency of VFO B Jumps DOWN 1MHz.
> VFO A is not affected.
> Frequencies above 10.000 MHz are NOT affected.
> If you try and move back up 1 MHz to the original frequency, with the UP
> button, the radio "beeps", but does not move the frequency, until the HIGH
> CUT SLOPE TUNE is moved back to its clockwise end stop, when it operates
> normally again.
> Has anyone ever seen this problem before? Any help would be welcome.
> 73,
> Mark, G4RCD
> PS. I have just joined this email list, so apologies if this has been
> discussed before.

Tried on mine, unable to replicate.
Considering proximity of the controls mentioned I'd suspect something loose 
behind the panel - scrap wire, solder splash?
Regards,
Eddie
G0EHV