Samsung LN52A550P3FXZA

[Robert Ashton]

Hi Everyone,

My Samsung 52' was doing the on off cycle and squeel, after some research here I replaced C102 & C131 with a couple of SMG (m) 85c 16v 47uF caps I had on hand.

Now it will turn on, squeel with the vertical lines until it cycles off then turns on and works perfect.

Do you guys think the MP2363DN IC is bad? Maybe cold solder joints?

Are the SMG caps low enough ESR?

I have recapped many power supply boards but this is my first time messing with these tiny flush mount tantalum caps.

Here is a video https://youtu.be/nJaKudTYWCg

Sorry about the glare from the windows,


Thank You

Robert

[tvtimmy]

Re: Samsung LN52A550P3FXZA

Search threads about c102.

[budm]

Re: Samsung LN52A550P3FXZA

"SMG (m) 85c 16v 47uF caps" they are not low ESR type.

[Robert Ashton]

Re: Samsung LN52A550P3FXZA

Thanks budm,

Ok, in the the Badcaps store there are Rubycon 47uf 25v caps, they are said to be low ESR.

Will these do or should I go for broke and get two 47uf 10v Tantalum caps and buy a mini heat gun to flow them?

I would be ordering two electrolytic Rubycon 47uf 25v and seven electrolytic Rubycon ultra low esr 820uf 6.3v to recap the bulged caps in another project.


Thank You For Helping,

R. Ashton