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Mac II 699-0389 PSU (Astec AA13780) Cap Question

Posted by: McEintosh on 2019-12-31 02:20:56 Hi all! I have a Macintosh II which I obtained quite a couple of years ago. When I tried to power it up the other day using the jump start trick, something inside the power supply exploded developing an extreme smell. I now decided to recap everything, starting with the PSU. The blown component obviously is a RIFA metalized paper cap next to that green and red wired coil near the two large 820µF 200V caps. I am unable to identify its values, as the debris which should have the values printed on it just seems to be missing. The only information I can recover is PME271N and 40/085/56. Is there a schematic for the Apple 699-0389 PSU or could someone please tell me the values of that blown RIFA cap?

Posted by: LaPorta on 2019-12-31 02:30:03 If no one else replies, I can see if my Mac II had this power supply later this evening.

Posted by: McEintosh on 2020-01-03 10:52:28 Hi LaPorta, would you mind having a look at your power supply?

Posted by: Alex on 2020-01-06 15:21:14 researching. Found this for now, worth reading. https://www.badcaps.net/forum/showthread.php?t=31322&highlight=Astec

Posted by: Alex on 2020-01-06 15:45:17 I believe this is it, Rifa PME 271 M Suppression Metallized Paper Capacitor I just don't know what the values are for your part. Hope this helps, the image is just a sample.

Posted by: LaPorta on 2020-01-07 09:21:52 Doh, I'm sorry...been so busy I neglected to do this for you, my apologies. I can look a bit later today.

Posted by: McEintosh on 2020-01-29 11:48:58 Managed to shoot another Mac II with the same PSU now ... For future reference, here's the solution: it's a  250V 22nF X2! Thanks everyone!

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