Saturday, January 3, 2015

[nslu2-linux] Re: USBnotFaund-unslung

 

I had to repair my power supply, because it would no longer mount the disk.  To open the casing I used a small vice and *slowly* put pressure on either end of the casing, just below the mains lead.  This broke the glued joint on one side and I was able to detach the casing using my hands.

A 33μF 400V 105°C electrolytic capacitor was faulty, I could see it was slightly domed.  I replaced this with a 47μF 450V 105°C capacitor, because I could not find an exact match.  The new capacitor is larger and the casing will not fit completely.  I used some electricians tape to secure it and measured the output at the jack, which was now 0.9 to 1V higher, with no load applied.

Booting the NSLU2 mounted the USB drive and was able to read it.  A couple of reboots later I have not yet experienced any other problems.  There are another 3 capacitors in the power supply, which I have not yet replaced:

2 x 1000μF 10V 105°C
1 x 10μF 50V 105°C

I could not find exact replacements for those, so I bought:

2 x 1000μF 16V 105°C
1 x 10μF 63V 105°C

If the NSLU2 plays up in the future I will replace these too.

Of course, it may have been easier to replace the whole power supply, but I couldn't find any in Amazon showing the actual volts and amperes on the label - they were blanked out.  So I didn't want to risk it.

Hope this helps.

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Posted by: mick_nslu2@yahoo.com
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