Lower voltage cap on PSU?

[dcapper]

I think I know my answer but I thought I would ask just to make sure. I have a Samsung LN-S3241D LCD TV. I want to replace all the Capxon capacitors. I have all the caps to replace them but the missing one. The one on the board is small and it's 68uf 63v. I have 2 lying around that I would like an opinion on. I have a 68uf 25v which is larger than the one on the board. I also have a 68uf 75v one too but it's pretty big and I don't know if it will fit. I'm assuming the 25v one has too low of a voltage rating correct?

Edit: They are both 105C

[Pentium4]

Re: Lower voltage cap on PSU?

25V is probably too low, 50V might even be too low. you'd need to measure the voltage going across that cap while in operation. If I was you, I'd use the 75V cap as long as it doesn't go too tall to clear the case, and the increased ESR shouldn't matter

[dcapper]

Re: Lower voltage cap on PSU?

I thought so too. I think I should have room but I'll have to check. I probably don't need to replace it but this is the second Samsung I've had that had faulty Capxon caps. One is bulged on this board and another is squealing.

[Pentium4]

Re: Lower voltage cap on PSU?

Oh, CapXon, that explains it. They should all be replaced if you don't want to be doing this again.

[dcapper]

Re: Lower voltage cap on PSU?

I found a 105C 68uf 63v Nichicon cap on a board that I wasn't using. It's the right size so all the Capxon's will be gone.

[Pentium4]

Re: Lower voltage cap on PSU?

I found a 105C 68uf 63v Nichicon cap on a board that I wasn't using. It's the right size so all the Capxon's will be gone.

Perfect! What series is the nichicon cap?

[dcapper]

Re: Lower voltage cap on PSU?

It says PW(M). That make sense?

[Pentium4]

Re: Lower voltage cap on PSU?

Perfect replacement

[dcapper]

Re: Lower voltage cap on PSU?

I ordered the rest from Simoncapacitor on Ebay. He gave me a kit for my Samsung computer monitor and its been working great ever since, so I'm sure it will be good in the tv psu.