Rockford Fosgate Amp Repair Rockford Fosgate Amplifier?

Rockford Fosgate Amplifier? - rockford fosgate amp repair

I have a mono amplifier 501bd and protection from light is lit. I read the manual on how to restore it, and said to the line at a distance removed. I did it, and then again in combination. This is to protect the restore function, but in my case, it is not. No idea how to reset this function so I do not have my amp to the workshop?