[Elecraft] KPA-500 no RF until power cycle

[Roger Dallimore]

This came up a while back but I haven't seen any answers yet.

When going into "operate" there is no power output, no lights (asterisk OK).
Switching the power button off then on again and placing it into 
"operate,"  it works fine..Happens every time.

Any clues on how to fix this will be gratefully received. I'm very 
pleased with the amp, just this little niggle I want to sort out.

73
Roger MW0IDX

K3 #191
KPA-500 #268
K2 #2724
KX1 #416