Repair dell da-2?

PSUs: The source of DC power for all components in the PC & often a big noise source.

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lesticx
Posts: 47
Joined: Thu Jan 28, 2010 3:31 am
Location: Finland

Repair dell da-2?

Post by lesticx » Thu Oct 28, 2010 12:11 am

Hi,

I bought a dell da-2 power adapter from ebay, and it's not working. I contacted the seller, and they are sending me a brand new one :) and they didn't want the old one back.

So I'm wondering if it might be simple to fix.
When I connect the ac cable to the adapter, the light doesn't turn amber (which I believe it should?) and I tried to short both of the "remote" pins to gnd, and it didn't turn on.

Maybe it's something as simple as a blown fuse?
Has anybody opened one of these? Is there a fuse etc inside that might be blown?
What about the fuses in the power cord? There's 2 fuses in the cord that comes off the adapter. How can you determine if one of these is blown?
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Vicotnik
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Location: Sweden

Re: Repair dell da-2?

Post by Vicotnik » Thu Oct 28, 2010 1:23 am

There's a fuse inside the box. Those things on the cord are ferrite cores, not fuses.

I have opened my DA-2 once, but that was a long time ago and I haven't tinkered with it much so I'm no expert on the DA-2.
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lesticx
Posts: 47
Joined: Thu Jan 28, 2010 3:31 am
Location: Finland

Re: Repair dell da-2?

Post by lesticx » Thu Nov 18, 2010 12:56 am

Ok, finally I had some time to tinker with this thing. Opened it up, but couldn't find a fuse.. :/

Here's a couple of pictures of the insides. Also there clearly was a burnt smell, so maybe I'll just chuck this thing..

Image

[URL=http://img153.imageshack.us/i/img1795a.jpg/]Image

Is there supposed to be a fuse somewhere here? if there is, I can't see it.. All the capacitors look to be good, so what else could have blown?
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Vicotnik
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Re: Repair dell da-2?

Post by Vicotnik » Thu Nov 18, 2010 3:20 am

There are a couple of different versions of the DA-2. Mine is a bit different from yours. On mine the fuse is a bit tucked away. It's quite small and there's lots of shielding everywhere.
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lesticx
Posts: 47
Joined: Thu Jan 28, 2010 3:31 am
Location: Finland

Re: Repair dell da-2?

Post by lesticx » Thu Nov 18, 2010 3:53 am

Thanx for the info! Well, it seems to one I have doesn't have a fuse, at least I can't find it :/
It's revision A00.

Apart from changing a fuse, fixing this is way over my head.. so I'll just give it away to someone who knows how to fix these things..
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Ksanderash
Posts: 353
Joined: Sat Oct 18, 2008 6:30 am
Location: Moldova, exUSSR

Re: Repair dell da-2?

Post by Ksanderash » Sun Nov 21, 2010 3:37 pm

lesticx wrote: at least I can't find it :/
This one maybe? With the more detailed photo (and the opposite board side too) I can tell you for sure.
Image
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lesticx
Posts: 47
Joined: Thu Jan 28, 2010 3:31 am
Location: Finland

Re: Repair dell da-2?

Post by lesticx » Mon Nov 22, 2010 12:57 am

Thanks for help, but I already gave it away to a guy who's more of an expert in these things.. I did get a new one from the seller anyway, so I didn't really need this and didn't trust my electronics skills enough..
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Ksanderash
Posts: 353
Joined: Sat Oct 18, 2008 6:30 am
Location: Moldova, exUSSR

Re: Repair dell da-2?

Post by Ksanderash » Mon Nov 22, 2010 1:47 am

No problem :)
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