Re: Macintosh Quadraa 630 dead power supply

Macintosh Quadra 630 came out 1994 so under 30 years. Either Dyna Corp used old stock or those caps were still used in mid 90s.

Should I replace those or leave it? And what about the big one? It seems to be glued on but it seems to be only on AC mains, likely after bridge rectifier so it probably operated at 120Hz to smooth out the mains AC wave.

Apple part 614-0037. I got this recently very cheap and it doesn't power up at all. The motherboard was checked with a known good power supply, it worked so this one needs a recap.


Top cover with the label. There's rust but it seems to be on the outside only, no rust inside or on the PCB


The board after I took it out of the case. The 110v mains unplugged from this board, unlike Antec which soldered the AC wires into the PCB.

I did Google for info but I ran into a problem: all the info I could find on recapping similar power supply, those were...

Re: New Members - please post your introductions here

New user here. Have fixed numerous devices with bad caps, mostly Sega Game Gear and NRC Turboexpress or PC Engine GT. Most recently saved a big 19" 1600x1200 LCD display.

Later when I'm awake I got a new one needing repair but it's hard to find information.

Anyway a hello from new member!