Re: PowerMac G4 MDD ACBel Power Supply issues (API1PC36 400W)

I have just fixed 2 of these power supplies, its essentially needed to replace the secondary caps, practically all of them with new ones, best to use brand name caps such as Elna, nichicon, etc. also pay attention to the diameter as the bigger buffer caps are all tall narrow types. i've also noticed the smaller caps, 10uF 47uF and 0.47uF had gone bad, best to also replace those capacitors. I have replaced the smaller caps with ceramic equivalents, this works well, and i think its a good replacement as they will likely...

Re: New Members - please post your introductions here

HI Everyone, I'm Arjen, an electronics design engineer, with a knack for fixing things. Recently i am refurbishing a bunch of old computers, especially old Mac's. I find this forum very handy, and i want to share some of my findings on fixing these old beasts. Hope my posts will be useful!