Re: Recapping a power supply

I should add---all the other parts look like fairly standard electrolytic capacitors, and I expect I should be able to find them online without much trouble.

--Tom

On Thu, Aug 6, 2015 at 12:18 AM, Tom Stepleton <stepleton_at_email.domain.hidden> wrote:

> Hi everyone,
>
> I have a broken 1.2 amp power supply, and I thought I’d try recapping it
> in hopes that I can make it work again. This may also be good practice for
> future recapping work (see my other post).
>
> This is my first time undertaking this kind of repair*, and while I’m
> pretty sure I’ve got the soldering skills to do it, I’m less certain about
> the parts I need to get. In particular, I’m not sure about the replacements
> for C1, C2, C3, C4, and what I think are C12 and C13 (can’t find a marking
> on the board). Some basic observations about power supply electrolytics and
> C1-C4 is here:
>
>
> https://github.com/stepleton/lisacapcensus/blob/master/620-0120_Power_Supply.txt
>
> For that matter, I don’t know if replacing every one of these capacitors
> is strictly necessary.
>
> Here’s what I’m confused about:
>
> C1-C4 are some kinds of AC filtering caps, and I’m not quite sure what
> they’re called or how to find them on electronics components sites. They’re
> the yellow-colored boxes with writing on them in this photo:
> https://goo.gl/photos/FnzoCEi4qLdxAk6c9
>
> C12 and C13 are enormous and have four leads each—and it looks like there
> are holes in the PCB to accommodate up to 5 pins. I haven’t been able to
> find anything like these at Mouser or Digi-Key.
> https://goo.gl/photos/XZ95SGnZSARdtMQr7
>
> Any help in preparing a list of components to order would be very welcome!
>
> Thanks,
> —Tom
>
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