Question about Samsung LN-S4051D 40 in. LCD Television

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40" Samsung LN40B610 1080p LCD HDTV suddenly turned off; will not turn back on (NO red light or clicking sound)

Purchased the TV in June 2009 at Sam'sClub.com for $1148. Turned TV on the other day and, within seconds, it turned itself off. Now, it won't turn back on at all. Power is completely dead (no red light). Aolso, there's no clicking sound. I've already tried changing the remote batteries; also tried unplugging the power cord (where cord connects to back of TV as well as where plug connects to AC wall outlet) for an hour. NOTE: The TV is protected by an expensive power surge connector which indicates all is well. However, my Netgear wireless router/modem, located in another room, was found "off" (this has never happened before), requiring resetting. If the power board needs to be replaced, approximately how much will parts + labor cost me (I'm not about to do it myself). I'm wondering if I should instead just invest in a new TV? Thanks for your help!

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  • Samsung Master
  • 16,415 Answers

Here is a place that I buy parts from: It is pretty inexpensive. Note though that with a big screen television, the service people come to your home and then you get charged for a service trip fee. So if you want to save money on this, take the set to them! You should know that those sets have to be transported verticle or the screen will break. http://www.shopjimmy.com/catalogsearch/result/?q=LN40B610+

Posted on Feb 17, 2014

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Samsung TV won't turn on- trying to fix it. A challenging problem

I had the same problem. I live in NJ and called the local authorized "service provide" listed on the Samsung website. What a joke. Quoted $350 just to show up, never showed up. So I opened my own TV. Took off the plastic back (10 screws) took off the large metal RF shield (12-14 screws) and noticed a blown component. The markings on the component were KL15L and it is apparently an NTC Thermistor. Obviously it got fried and not knowing if there was other damage I decided to set out to replace the entire Power PCB Board Assembly and not the component. There were two part numbers on the assembled board (BN97-00457E & BN94-00622E). After searching online I also found a suitable replacement number for these (BN96-04896A). I found two places who claimed to have the part or have it on order (shopjimmy.com and vancebaldwin.com). After placing orders with both and having neither come through, I broadened my search and found out that the LNR409D was basically the same model as my LNR408D so I looked for its Power PCB Board Assembly part number which turned out to be BN41-00521B. Google search for that part number showed the item available on ebay. I bought it a week ago (ebay 260311519904) for $144 plus $12 shipping. I removed the bad board an hour ago (6 screws about 7 connectors) installed the new one, plugged in the connectors, replaced the covers, plugged in the TV... AND IT WORKS!
Suggestion: If your TV is out of warranty then open it up (what have you got to lose) and see if the problem is obvious and maybe something you can fix (replace) yourself. The parts, spare boards, etc. are out there if you look.

Posted on Nov 16, 2008

redgs95
  • 15 Answers

SOURCE: 50 inch Plasma Samsung HP-T5054 appears to have power however...

check the power inverter on the power strip. also check the caps on the board and if any of those caps have a round top it is bad and needs to be replaced. i hope this helps.

Posted on Jul 28, 2009

dave1645
  • 834 Answers

SOURCE: Samsung 26" LCD TV will not turn on

you have one or two bad caps in the power supply these can like devices will be puffed on the top from venting the value is wrtten on the sides replace them and you will be good to go

Posted on Nov 06, 2009

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