Ag series is the reference series at least the AG1000 matches my 1000 reference. I have been working on a few zapcos of my own… I have tested all fets and caps. I need schematics so I can check all the resistors to see if they are to spec. Basically I have an issue on 2 of my old amps, they can take power with no problems but they won’t turn on. My guess is it’s a resistor or something like that. I have been looking for broken traces and don’t see anything.
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