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Samsung LN37A550P3FXZA - no power    
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1968RT



Joined: 13 Mar 2010
Posts: 51
Location: michigan

PostPosted: Tue Apr 26, 2016 12:24 am    Post subject: Samsung LN37A550P3FXZA - no power Reply with quote

Samsung LN37A550P3FXZA
The set is completely dead - not even a relay click when the power button is pushed. After opening it up, and looking for any obvious problems, I noticed 3 caps with slightly bulged tops. They are marked on the PC as CB852, CM853, AND CM858. Would these have anything to do with with this problem? Should I replace them and see if it makes any difference? The serial number is ALXQ3CSQ604253T and the version is AA01.
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JTS1957



Joined: 21 Jan 2009
Posts: 2266
Location: Far, Far Away

PostPosted: Tue Apr 26, 2016 4:31 am    Post subject: Reply with quote

1968RT wrote:
Would these have anything to do with with this problem?
It is what it is.

1968RT wrote:
Should I replace them and see if it makes any difference?
Worth a try.
manmike



Joined: 29 Jan 2015
Posts: 4
Location: USA

PostPosted: Wed Apr 27, 2016 9:37 pm    Post subject: Re: Samsung LN37A550P3FXZA no power Reply with quote

This issue is caused by problem with the power supply in the stand-by circuit. When capacitors are the issue, the TV doesn't turn on but it has stand-by (red light in front). The best solution is replace the whole power supply. You can find a used power supply very cheap online.
1968RT



Joined: 13 Mar 2010
Posts: 51
Location: michigan

PostPosted: Thu Apr 28, 2016 7:17 pm    Post subject: Reply with quote

I found 3 1000mf @ 50V caps in the parts stash, so I just went ahead and replaced them. TV seems to be working OK. Thanks for the support.
Mike
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