Re: Power supply caps and related problems

From: Ray Arachelian <ray_at_email.domain.hidden>
Date: Tue, 10 Apr 2007 12:44:00 -0400

simon wrote:
> be
> aware that a visual examination is not enough. just replace them all.
> the cost is very low compared with the idea that all of them are in a
> bad shape and under huge stress. Maybe the bigger ones cost around 8
> euo's a piece, but the small ones are not that expensive..

Very true. In my own case I found one of the very small capacitors on the left hand side of the power supply (when held with the gold connector facing me) blew out. So in that case, it was very easy to spot.

But I also did replace the large cylindrical ones, the amber rectangular ones.

In another power supply I found that one of the large cylindrical ones had visible damage, so the pair of them were amongst the ones I replaced.

It's probably good to replace all of them if you don't mind spending about $40 and have a lot of time work with a soldering iron. Personally I'd rather replace as many of them as possible at one time, so that the power supply will be good for another 10-15 years. It would be more annoying to replace some today and have to replace more a month or a year from now. :-)

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