if the CIA chip were bad could this cause no 5v? I'm trying to pre-diagnose the issue before I take it to my guy who's not an amiga technician, but knows his way around a computer for sure, just makes the work quicker / more effective..
logic probe? oh i see, i've never seen one of those before, just googled. interesting. I'll have to look into getting one of these. I figured one of the pins has a constant +5 volt on it standard.. like pin 1 or something.. i just didn't want to start poking around with metal while on.. and zorch something..
So it's possible that a passive mouse like a ball mouse might actually work?