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Problem installing a 888LM for a Liftmaster opener

It appears as though I have an opener that isn't compatable, however, the documentation on the web site says to the contrary.  

I have a Liftmaster Professional 1/2 hp, part no. 41A5483-1C, IC:2666A=102 1499A, Date=02/05.  RED learn button (says that's comparable in this web site.

The 888LM blinks the yellow and red LEDs quickly, slows down, beeps three times and does it again, over and over.

Is there a fix for this?  I've seen others getting a logic board replaced.  I'd like to know how to go about this. 
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