[Elecraft] KPA-500 fix

[Andrew Faber]

I thought I would share a fix to my KPA-500 with the group in case someone 
else might have the same problem.
I have an old amp (two-digit serial number), and it has performed flawlessly 
until yesterday. Suddenly the Operate-Standby button stopped working, and 
then I noticed that other buttons worked, but did strange things.  The cure 
was simply to take off the front panel and reseat the two ribbon connectors. 
Actually I could only reseat the large connector at the panel end, and the 
small one at the board it plugs into in the main body.  The other end of the 
large connector is at the back of the amp and not accessible without 
considerable disassembly.  And the panel end of the small connector was 
stuck on so tight that I was afraid I would break something in removal.  But 
reseating 2 of the 4 possible connectors did the trick.  Now it seems to be 
back to normal.
  73, andy ae6y