Question about Samsung UN-46D6400 46 in. Class LED Smart TV

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I HAVE A SAMSUNG 46 INCH LED SMART TV AND IT WONT TURN OFF OR ON.THE RED LIGHT CONTINUOUSLY FLASHES.THE SMART TV SIGN WILL FLASH ON THE SCREEN FOR A SECOND THEN GOES OUT.I HAVE UNPLUGGED THE TV OVER NITE AND SOMETIMES IT WILL TURN ON THE NEXT MARNING BUT AFTER I SHUT IT OFF IT WONT COME BACK ON.HAD THE MOTHER BOARD CHECKED ITS GOOD

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Posted on Jan 02, 2017

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SOURCE: Samsung flat screen wont turn on red light just flashes..

wont turn on red light just flashes?
On my samsung flat screen tv when you are watching the televison there is no red light on the power button but when you turn the television off the red light stays on all the time? what can I do to turn this light off?

Posted on Oct 29, 2008

  • 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

  • 1 Answer

SOURCE: samsung tv LE32R74BD standby light on but wont turn on

samsung tv le32r74bd had tv on standby and wont turn on,it is stuck on standby please can you solve this

Posted on Nov 24, 2008

  • 7 Answers

SOURCE: 46 inch Samsung TV that just clicks but wont turn on

I just fixed this very same problem. It is the capacitors are the problem. However, I think that if you have some minimal skills with soldering, you can fix this yourself. You just need to take out the system board, then the power supply parts are on the top right. The bad capacitor(s) will be bulging at the top and possibly have some brown stuff coming out. The ones that go bad are 1000microfarad, 10V, however you can replace them with higher voltage. I got 35V caps from radio shack for 1.59 each. You just need to solder out the bad ones and then put the new ones in and solder. Remember that the negative end goes on the side with the bold black part of the circle on the system board. Then just cut off the extra ends of the capacitors. If you are capable of doing this yourself, you will spend at most 6 dollars instead of however much a technician costs.

Posted on Sep 25, 2009

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SOURCE: my 32" Samsung lcd tv won't turn on, led is solid red

The Main bd is bad. It is not sending a turn on signal to the power supply.

Posted on Apr 16, 2010

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