Question about Samsung UN40B6000 40 in. HD-Ready LCD TV

1 Answer

Samsung UN40B6000 40 in troubleshooting, where to start?

TV took a nasty power hit through FIOS coax; 110v. Power went from the coax out through the HDMI port and also fried the set top box. Isolated fault to short on light fixture and improperly wired outlet(no ground.) At application of power, TV clicks on and make a buzzing sound but does not power screen. Need advice as where to start. Power goes into main PCB so will check fuses. If those are good, should I bother with the cost of replacing boards? Is there a way to detect a bad board? Any specific equipment besides a multimeter?

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  • Maya Vexamor
    Maya Vexamor Jan 19, 2013

    Wow, that was fast. Good suggestions. Ok, TV as soon as I apply power I get that buzzing sound, then there I hear a relay click and the screen and power led blink on and off in about 1 second.

  • Maya Vexamor
    Maya Vexamor Jan 19, 2013

    Proofreading really helps... *Ok, as soon as I apply* *then I hear a relay click* *screen and power led blinks on and off for about 1 second* So much fail in one reply. lol

  • Maya Vexamor
    Maya Vexamor Jan 19, 2013

    Forgot to add, fuses check good.

  • Maya Vexamor
    Maya Vexamor Jan 20, 2013

    @B2LE Just bought a main board from e-bay, guys screen went bad, lucky he is parting his TV out. I truly hope this solves the issue. No visible damage; discoloration of components, no burned up runs, not even that nasty smoked tron smell. Cross my fingers. Thanks for the knowledge guys, makes this whole thing less stressful.

  • Maya Vexamor
    Maya Vexamor Jan 25, 2013

    Well, it wasn't the power board. So, my next troubleshooting steps: I disconnected the white cable from power board (BN44-00269A) to PCB BNE board (BN94-02657D) and tv stays on with LED backlights fully lit. I then disconnect control board from BNE board, reconnect BNE to power board and I get the standard relay click and the backlight is switched off. So, next up is ordering a BNE board which is also BN41-01170(revision letter?) I'll update as soon as I get part.

  • Maya Vexamor
    Maya Vexamor Feb 06, 2013

    Well, TV was fixed by replacing the BNE board...I missed the damaged components on this board. Payed to replace the power board which was not the cause; oh well, live and learn. only around 150 bucks burned though. Pics:http://cdn-pics.slickpic.com/NDQxMTVlZjM... ,http://cdn-pics.slickpic.com/NDQxMTVlZjM... Cheaper than paying someone else to fix it. Thanks guys for help and suggestions, really appreciated it.

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  • Samsung Master
  • 933 Answers

I can almost assure you that at least your main board is toast. May have damage to other boards as well

Posted on Jan 20, 2013

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Posted on Jan 02, 2017

  • 133 Answers

SOURCE: Screen goes completely out.

when it blanks out, tuen the lights out in the room, and shine a flash light at the screen, see if you can see the picture, if you can, it is the inverter moard blamking out, thats the board that lights the back lights, if you cant, hit the input button on the remote, if the TV comes back with a picture, it is a problem with the main board, in paticular the componant input on the main board

Posted on Jan 10, 2009

  • 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

SOURCE: power light comes on and clicking is heard but no

your problem is more a defective y board with y buffer boards one of them is short

Posted on Oct 26, 2010

  • 8909 Answers

SOURCE: I have a Samsung LN46C630 that got fried through

I would replace the power supply as they are not too expensive.
New M/board, should be OK. Have you checked the RAM for errors and installed the latest BIOS firmware?

Posted on Dec 06, 2010

bshldn
  • 736 Answers

SOURCE: I have Samsung UN46B8000XFXZA LED TV. After power

Yes based on your testing it appears that the power supply is at fault solely and you can opt to attempt a repair or replace it altogether. Unfortunately you will not be certain that the main board does not also need to be replaced until you have repaired the power supply.

Posted on Feb 05, 2011

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