I have a samsung le40m61b television it has recently started losing the picture and the background is florescent panels are lighting up. I had it to a TV expert for a repair and he said that the power supply is ok but the there are some fault on the power control board400W2C4lV1.4 and it should cost to much to fix it. I find the control board on internet and bought a new one. The problem is still there after I have put in the new circuit board. I can get the TV working 100% correct if I turn on the TV for 5-6 hour so to say warming it up without any picture. After this time I try to turn if off and on and in the most cashes it turn on correct. If I not turn it off it and leave it on the TV seems to working correct for days. I often turn it on for weekends because I can not be sure that I can get on any more time. I check all caps on the power board an also change some of them to see if it helps but up to now nothing have helpt. Can any one of you give me some tips how I should solve this problem. Going back to the TV repair shop is no option. He have already failed in locating the problem and cost me 100 us$ Best regards L_G Nielsen

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.

SOURCE: Samsung LN-T4665F 46" HDTV Screen is BLACK - NO PICTURE

I am a Samsung certified Tech, they do have problems but when the LCD screen was replaced and the main board, they sould have replaced the FR board also

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look under tv

SOURCE: We have a samsung tv model no le40r88bd which have

eeprom needs replacing, i had same problem, changed mine myself only a few days ago, all seems ok.

SOURCE: We have Samsung LCD model LN26A450C1D, which is

The tv Tuner board is dead,that the board,where the brocasting incomming signal cable connected into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacement.

Testimonial: "Thanks for quick response! I will try. "