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Home▸ Forums▸ 68kMLA▸ A Naked and Nasty Macintosh Portable — #7
Post #7 by digitalrampage
Source Forum68kMLA
CategoryTroubleshooting
Post DateSun, 1 Aug 2010 - 07:49
Original URLhttps://68kmla.org/bb/threads/a-naked-and-nasty-macintosh-portable.20158/
Post
Hi Everyone

I've just rebuilt about 12 of my Mac Portable's however I had one issue, when I replaced my some of my portables SMD caps with Tantalums, well 3 of them caught fire! :disapprove:

This happened on the Non backlit and Backlit model.

I used the correct rating on the tantalums, I dont quite get why this occured, I do not completely understand how the technology differes between the SMD caps and tantalums, I always assumed the ratings are the same it was all good.. But apparently not.

Not sure if it has to do with the fact I am using a 7.5v 3.0a power adaptor for my test runs, but either way, can anyone suggest why such a thing would occur? After scorching two boards pretty severely now I am concerned with the tantalum re-build of the Mac Portable...

Could it also have to do with other ageing componentry?

Any thought would be welcomed...

mp.ls