Best Solution (1 of 14)

posted 2 years ago

billn352

• Rank: Guru
• Rating: 94%, 52 Votes

Try this for new power supply - http://www.discount-merchant.com/ProductDetails.asp?ProductCode=1029657-SAMSUNG&Click=35. Is the red LED blinking 4 times, hear relay click and wait, then another cycle? I developed this problem yeaterday. No visable damage or discoloration of components.

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1. 

   • billn352
   • 2 years ago

   I have ordered and am waiting for service manual download from https://www.manualsparadise.com/AboutOurStore.do for my LNS4051DX/AXX. I hope this helps give some measurements to do.

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   • billn352
   • 2 years ago

   
   Samsung LNS4051D - I replaced power supply board parts CM806, 811, 812 & 817, all 1000 uf 10v capacitors, three had their tops bulged up slightly that I missed on initial visual inspection. After seeing the reports of problems with these caps, I replaced them with Radio Shack part 272-1032, 1000 uf, 35v. They are slightly bigger, but fit OK. TV is working fine now. Cost was 4 x $1.59 = $6.36 plus the time. I saved between $100 to 300 in the process of either replacing the board or getting the unit serviced. Well worth the effort and experience.

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Solution 2

posted 2 years ago

mgomolinski

• Rank: Apprentice
• Rating: 98%, 18 Votes

I had the same problem. I work for a mother board manufacturer w/offices in New Jersey and brought mine into our engineering lab after Samsung told me tough luck. Anyway, one of my engineers fixed it in 10 minutes. Essentially, he replaced the 1000uF capacitors on the power supply board with 2 cent capacitors instead of the 1 cent capacitors that had blown out on the CHEAP SAMSUNG POWER SUPPLY BOARD. You can tell the caps are blown via visual inspection. The top of the cap should be perfectly flat and a blown cap will be convex on top. Unfortunately, there are also 2500 uF caps by the same cheap manufacturer on the board as well and we don't stock that value for our products. According to my engineer, those will most likely blow next since he replaced the others with better caps, but I'm getting samples of those and will replace them shortly. After that this piece of **** should last me at least another 2 yrs! It's been working for about a week now w/no problems. Hope this helps.

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Solution 3

posted 9 months ago

mattygtaylor

• Rank: Apprentice
• Rating: 100%, 4 Votes

Had the same problem with my LA40R71BDX. After stumbling upon this thread (luckily) I've saved myself at least AU$500. The same capacitors described by everyone else (CM806, 811, 812 & 817) were bulging and two had black stains on the top. Replaced those with 1000uf 16v capacitors (as the 35v ones i'd prev bought were too big) screwed it all back together and presto! worked first go! Thanks to everyone on this page, you've been great! Oh and by the way, if you are thinking about doing this and haven't done ANYTHING like this before (i.e. Soldering, electrical work) I suggest you take the risk. I had no experience before this and it was a breeze. There is a youtube video on how to replace these exact caps on a 52 inch LCD samsung... Just search samsung tv repair. Thanks again!

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Solution 4

posted 10 months ago

crashcrew

• Rank: Apprentice
• Rating: 92%, 3 Votes

I just did the same thing, replaced the 4 infamous capacitors, and no dice, picture turns off after a few minutes, and the sound is still on. Unplugged the tv to take it out of standby mode, turned it on in the morning, seemed to work, for a few minutes that is... Any other advice? Maybe it surged from a recent power outage? The caps cm806,17,11,12 were not bulging, but I changed them anyways. .

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Solution 5

posted 1 year ago

n2fitness

• Rank: Apprentice
• Rating: 100%, 2 Votes

I had the same problem with my Samsung LN-S4051DX 40" LCD. Replacing the 4 1000uf capacitors on the power supply fixed my problem as well...... Thanks guys for the heads up!

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Solution 6

posted 1 year ago

MLacanl

• Rank: Apprentice
• Rating: 100%, 4 Votes

Thanks everyone for the helpful tips on the bad capacitors. I opened the back of my LNT4042HX and there were the bad capacitors plain as day CM806, 811, 812 & 817 plus i had 1 more bad one # 807 which the top was bulging, so i replaced all 5 with 1000uF 35v capacitors from Radio Shack. It took about an hour to do the entire job and my TV was up and running again. Or should I say turning off & on like its suppose to "With The Power Button" ;) Life is good once again :D

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Solution 7

posted 1 year ago

richardo55

• Rank: Apprentice
• Rating: 100%, 3 Votes

Thanks guys, my Samsung LNT 4061 had the same problem, after 1 year and a half. I called Samsung and they told me that I was on my own (CANADA). After reading the Forum i bought the capacitors 7.25 dollars. replaced it and it is working again.

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Solution 8

posted 1 year ago

scandroid

• Rank: Apprentice
• Rating: 100%, 4 Votes

SO GLAD I STUMBLED ON THIS THREAD!!!

Same problem, clicking sounds...no picture on my beloved Samsung LCD tv. I opened it up, and sure enough, those same four capacitors were blown on mine as well (including the burn-mark on a nearby ribben). Uncanny. I've never dealt with this sort of thing before, but on close inspection ONLY these 4 capacitors were not flat on top, and three of them had black marks on them as well. Went to Radio Shack, bought the replacements described above, as well as a $8 solder iron kit (which came with solder as well) and in about 30 minutes had replaced all four capacitors. There are lots of helpful how-to YouTube videos on how to solder if you have never done it. My TV is back to perfect working order AND I learned how to solder. Not bad for a days work!

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Solution 9

posted 2 years ago

KyleKelsch

• Rank: Apprentice
• Rating: 100%, 4 Votes

Just Letting you guys know that I had the same problem with the same 40"Samsung. I have owned it for 2 years and I just finished changed the capacitors about ten minutes ago, It worked like a dream, my kids are playing the WII as I sit here typing. Thank you so much for the solution. An $8.00 dollar fix instead of several hundered and ten or more days out at the repair shop. Thank You

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Solution 10

posted 1 year ago

cweagraff

• Rank: Apprentice
• Rating: 94%, 4 Votes

I had the same problem and found a board for 112 dollars shipped on the internet. Two days after I ordered the board the TV is on and working. The IP board # BN44-00134A for a LNS4501 samsung. I purchased it from partstore.com.

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Solution 11

posted 10 months ago

andymcghee

• Rank: Apprentice
• Rating: 75%, 1 Votes

I had the exact same problem with my LN-S4051D samsung LCD TV. I was super excited to hear that everyone had been able to fix theirs. So i went and got myself a soldering iron and some rosin core solder. I could only find 1000UF 25v capacitors which are better than the **** ones that were in it. (and yes the originals were convex at the cap and blown with the burn mark on the ribbon.) I replaced cs 806, cm817, cm811, and cm812. I was super happy to see if the fix worked as the replacing of the capacitors seemed to go off without a hitch. Unfortunately my happiness and excitement was soon replaced with sadness and disbelief. It was doing the exact same **** upon testing. Any suggestions?

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Solution 12

posted 5 days ago

oceanic815

• Rank: Apprentice
• Rating: 0%, 0 Votes

I have a burned out capacitor as well; however, it has 2200 uf (10V) on it. It also has 115 degrees C as a rating. I'm nervous about buying different capacitors at Radio Shack...what should I do?
Also, I just noticed ONE capacitor that was bulged/burned; the others looked fine. Should I replace all the other capacitors as well?

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Solution 13

posted 3 months ago

wojt1

• Rank: Apprentice
• Rating: 0%, 0 Votes

I'm having the same problem with my Samsung LN46A750. I replaced the pwr board, but my set still clicks on and off. Does anyone know of another part that's related to this problem?

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Solution 14

posted 5 months ago

w1nkt

• Rank: Apprentice
• Rating: 0%, 0 Votes

Thanks to all the posts with solutions and the video, I just replaced the same 4 caps mentioned with new 35v 1000uf ones from Radio Shack and my LT-N4061F set now fires up like new! Thanks again.

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