[Elecraft] [K3] Spinning VFO B very quickly shuts down K3

[Keith Trinity WE6R]

Hi Al;
Strange, check for corrupt FPF, here are my notes.
Keith WE6R K3/K4 Tech
Corrupt FPF, confirmed by looking at the Config menu item “XV1” then 
tapping 9 and looking for strange entries for XV9, RF or IF usually have 
weird values,  (144 and 28 are the default).
Check that ADC ref is NOT 4.00, see next item.
Fix: EE-INIT (parameter initialization) then Re-load FPF and re-load 
known good config file (check XV9 after) . Or setup and calibrate. DO 
NOT JUST SET THE XVTR ENTRIES TO DEFAULT! They are an indicator the FPF 
is corrupt, not the cause of it. And just setting them to default will 
NOT fix the corruption.
If still problems, EE INIT (set to 38400) then reload ALL FW then EE 
INIT again.
Associated; ADC ref showing 4.00 is FUBAR! We have seen this during 
extreme FW rev loading jumps.
Fix; Set to 5.00 or set precisely measuring pin 2 of the ACCY connector. 
Valid #s are 4.75 thru 5.25.