KPA1500 problem

Stephen Reichlyn

Good morning all.
All of a sudden, my KPA1500 is showing a fault: RF IN, NO KEY IN
If I drive the amp with 10w, it works nicely. 10w 450w out. When I drive the amp with 15-20w it immediately defaults to the above mentioned fault. Does the same thing on all bands.
Any ideas?
Steve AA4V

Sent from my I-Phone

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