Blown Tantalum Capacitor Advice

[Rob Jarratt]

> A WELL-KNOWN problem with Tantalum caps is that if run in equipment for
> some time, then put on the shelf for some years, then powered up again,
> the caps will fail, often spectacularly.  Sometimes, in things like memory
> boards, you will have to replace many caps. Likely, just the cap is bad,
if it is
> on an externally-supplied power rail.  Supposedly, if you were to ramp up
the
> supply voltage slowly, it would allow the cap's dielectric to reform
gracefully.
> 


I went ahead and replaced it. The drive spins up now, but sadly the drive
doesn't actually work, after spinning up and making a few clunking noises,
it spins down again. I suspect it is trying, and failing, to find track 0.

Regards

Rob