{Collins} 30L-1 amp stuck in the keyed position

Greetings to the Collins list,
I am having problems with the 30L-1 this afternoon.  As soon as I power on 
the amp, it keys up and transmits a signal. 
I disconnected all of the cables to the tranceiver and same thing happens. 

Please help.

73, Otto KC2KKP
CCA member #11715

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