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Home Forums IIfx no power up — #1 IIfx no power up — #1
Post #1 by tanaquil
Source ForumIIfx no power up — #1
CategoryHardware
Post DateThu, 17 Dec 2015 - 23:02
Original URLhttps://68kmla.org/bb/threads/iifx-no-power-up.3136/
Post
Today I dragged my IIfx out of the basement, where it has been sitting quietly for years. I honestly don't recall if it ever worked; I'm pretty sure someone gave it to me around 2002 and I shoved it down there without even testing it. (If I had tested it, I think I'd remember one way or the other.)

Plugging it in (using the same power cord I normally use for my IIsi) and pressing the power button is giving me zero response. No sound or reaction at all. (Power key on keyboard doesn't work either.) I disassembled the whole machine, testing it periodically as I removed components, and never got any response. 

The inside looks pretty clean, just the usual amount of light dust and tarnish. One of the two batteries (Maxell, shudder) had gone bad at one end, but the corrosion seems to be limited only to the battery holder; I can't see any corrosion at all on the upper or under side of the motherboard. (I tried powering up before and after removing the batteries. No change.)

Apart from the corroded battery holder, I can't see any signs of capacitor leakage on the main board at all, though I'm not an expert and probably wouldn't notice if caps were slightly swollen.

My question is: how likely is it that re-capping and/or replacing the power supply will fix my problem? I'm open to doing either or both. Not sure what order I should proceed in.

Uniserver is going to get a lot of business from me when I finally get my mess wrapped up at work and have some time to send all these boards off. I'm already planning to send in a relatively healthy SE/30 board.

Thanks for any advice!

mp.ls