Ultra LSP650 PSU Worth Fixing?

[StodgyWaif]

Hello Everyone.

I've successfully repaired a monitor or two in my life. Thanks in part to badcaps.net of course.

I obtained an Ultra LSP650 PSU (Worth about $60).

It has at least 8 bad caps.

I've never worked on a PSU before. Is this worth the trouble?

Should the tiny caps in the pictures also be replaced?
Can anyone offer suggestions for replacement caps?

From what I can see:
6 - 2200uF 10V
2 - 2200uF 16V
1 - 470uF 16V

Thanks for any help or information.

[kc8adu]

Re: Ultra LSP650 PSU Worth Fixing?

it might be ok for light work after a recap but its no 650w.
call it "acceptable" at 300 or so.

[StodgyWaif]

Re: Ultra LSP650 PSU Worth Fixing?

Thanks for the reply kc8adu

I suppose it's probably not worth the $ or effort then.

Is this always the situation with recapping power supplies?

[stj]

Re: Ultra LSP650 PSU Worth Fixing?

not true,
it's worth fixing because it's a well built looking psu.
you should replace all the caps with the possible exception of the 2 big mains filters.
because the small caps will stop it turning on if they dry up.

panasonic FR,FK and FC will make that a nice backup / test psu.

[goodpsusearch]

Re: Ultra LSP650 PSU Worth Fixing?

It could do 400W, but don't expect more.

[StodgyWaif]

Re: Ultra LSP650 PSU Worth Fixing?

Thanks for the replies everyone.

Really, if the PSU can only operate at a reduced capacity then it isn't worth my trouble.

Thanks again for the advice.

[c_hegge]

Re: Ultra LSP650 PSU Worth Fixing?

^
It's not that it will operate at a reduced capacity as a result of the recap. That thing was never capable of 650W from day 1. Ultra lied about the rating and fraudulently sold a 350-400W unit as a 650W.

If it was mine, though, I would absolutely recap it. for $5-10 in caps and maybe a hour of time, it's totally worth it IMO.

[Th3_uN1Qu3]

Re: Ultra LSP650 PSU Worth Fixing?

Another vote for "worth recapping". That platform *can* do 650W, just not with those output inductors and transformer. Maybe twice the size, that'll do. The diodes may need some beefing up too...

But anyway, that's a good 400W unit there. It's worth fixing and keeping around for a secondary computer or for testing random parts.

[Pentium4]

Re: Ultra LSP650 PSU Worth Fixing?

That's a competent Solytech build right there. I bet it could do 500W no problem. The new Allied AL-D500-EXP can do about 500W with half bridge configuration and 35 transformer. That one looks like double forward. I think 650W is still asking way too much from it. I have one that looks just like it with a 39 transformer. Worth a recap.