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Personal Iris power supply fuses

Posted: Sat Mar 24, 2018 1:38 pm
by necron2600
From here:
http://www.sgistuff.net/hardware/systems/personal.html
"One fuse is on the small daughtercard, the other is next to that card and usually covered with a blue plastic cap"

Does anyone know the part#/model of fuses to use? Maybe somewhere to buy them online?

Thanks

Re: Personal Iris power supply fuses

Posted: Sun Mar 25, 2018 7:46 am
by pentium
Well one fuse is rated 250V 10A and be found on Digikey as 507-1256-ND. the other is rated 6A 250V and can also be found in Digikey as 283-2636-ND.

I have to ask though. What the heck happened to cause both fuses to blow?

Re: Personal Iris power supply fuses

Posted: Fri Apr 06, 2018 9:27 pm
by necron2600
Thanks Pentium! Great help.

After testing, only the top (daughterboard) fuse blew. In my hacky attempt to troubleshoot a DOA powersupply, I shorted the power switch with a paperclip (thinking maybe the switch was faulty) and it touched the metal case and sparked. Case was empty, except for the powersupply, but it blew the daughterboard fuse.

I am at a loss as to why this powersupply does absolutely nothing. No buzz, no whine, no power. Basic multimeter testing shows 120v power comes in and passes those fuses (even if I jump them). Powersupply is dead, but components look cosmetically good. That’s about as far as my electronic skills get me ;)

Wish there was a way to package the powersupply, ship it to someone.. and get it fixed.

Re: Personal Iris power supply fuses

Posted: Sat Apr 07, 2018 1:20 pm
by pentium
I seem to recall those power supplies failing was a thing for many years. There are procedures to substitute an ATX power supply. I recapped mine back in 2006 or 2007.

Re: Personal Iris power supply fuses

Posted: Fri Apr 13, 2018 9:33 pm
by astouffer
See if you have +5 standby.