question hi current/kpa out of control

[David Eckert]

I really screwed up and reversed polarity to the dc power supply


turned on power supply but NOT radio
surge in current then 20 amp breaker in k3 poped
 I reset it
amazingly k3 still works but something is wrong with the KPA3 or the PAI/O controller
gives hi current if try to bring power above 12 w
will drive KPA 500 to about 200 w with 12w
if you try to increase power beyond 12 w hi current displays and KPA 500 is quickly overdriven as if the KPA3
is out of control increasing power in large increments
(KPA500 is usually driven at about 20 w)


is this a computer glitch i can fix or do i need a new KPA3 or PA I/O module?


Dave  KB8V
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