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Small update: I did test the tantalum with my multimeter and sure enough it is shorted. I tried testing the diode but on mine it is in a very awkward spot to test, one of the solder points is under a coil and its too closely mounted to the board in order to test it above, I probably will end up...

I have a few questions in regards to a Performa 6290 PSU I intend on recapping which is a Dyna Corp DCF 704, not sure if they used more than one model in these units. 1: Kind of the most important, but when I took it out last night to inspect it I realized I didn't take a picture of the power...

I did intend on replacing the tantalum cap as well, though the big electrolytic is slightly bulged on the bottom and I want to replace it before it gets worse and starts leaking. That gouge in the electrolytic makes it so I can't see if it's 1000 or 1800 or similar uf and I don't have an LCR...

Here's the top and bottom. Going off the copyright date of 87 and the fact mine's serial number and board both say 87 on it makes me think that this is an early one. Are the serial numbers of the boards after the year in sequence?

I have a Radius Plus Accelerator that came in my Mac Plus, but there is an obviously bulged cap on it and I want to replace the tantalum that I read somewhere is prone to blowing up. The cap that is bulged on the accelerator board has a mark in the side that makes it so I can't tell if its...