|
I changed out all of the 'big' capacitors in a Nidec Indy power supply tonight (it originally had a blown primary cap) and it's working sweet again. Here's the parts you need to get from Digi-Key if you want to re-cap yours too, since most all of these supplies are getting up in age these days. Cost should be around $25, and they are all direct replacements. Capacitor reliability has improved over the years too, so the replacements should actually last longer than the originals - these replacements are all low ESR caps rated for 105 degrees C, and designed for switching power supply use.
C7, C8 - big caps by the fan
2x Panasonic EET-ED2D681CA - 680uF 200V - Digi-Key P11619-ND
(I noticed earlier versions of the Nidec's used a 560 uF cap, if you're re-capping I'd suggest using the above 680uF part)
C11 - small cap about halfway down the board, by the controller board
1x Nichicon UPW2G010MPD - 1 uF 400V - Digi-Key 493-2055-ND
(I believe this cap is part of the standby circuit, if it goes bad the supply won't start because there is no initial voltage to fire the main regulator)
C27, C28 - tall caps by the speaker
2x Nichicon UPW1A822MHD - 8200uF 10V - Digi-Key 493-1763-ND
(Slightly larger capacity than the originals, but same sized case - recommended substitute)
C45 - tall cap by power connector
1x Nichicon UPW0J562MHD - 5600 uF 6.3V - Digi-Key 493-1718-ND
(same as above)
The supplies come apart fairly easily, and the caps can be easily replaced with a good soldering iron. Easiest way is to heat one pin, rock the cap, let the solder solidify, heat the other pin, rock, etc. until the cap comes free. Solder wick is good for cleaning out the holes, and be sure to get your polarities right when you re-install!
Enjoy!
|