Question about Samsung LN40B630 40 in. LCD TV
The TV is 2 years old, and yesterday it did not want to turn on, no light, no sound...nothing. Opened the back to look at the capacitors and they all look fine. checked the two fuses (the 6.3amp is fine but the 3.15amp is not). changed the 3.15amp fuse but the TV still did not want to turn on. Checked the new fuse and it went bad again. I really want to try to fix the problem myself but not sure what I need to look at next. Please help
I have an ln40b630n1fxa and my fuses keep going out as well i took it all apart and seen nothing blown. What would be my next step
Posted on May 24, 2016
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Posted on Jan 02, 2017
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
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.
Posted on Jul 22, 2010
Testimonial: "Thanks for quick response! I will try. "
SOURCE: First of all, I really
Would troubleshooting chart of LN-S4052D help you to diagnose problem?
Let me know to send you pdf file of troubleshooting for no power problem, it has details to test what volts on what points.
Below is first page image of related service manual just for reference.
Posted on Oct 21, 2010
That model is covered under a class actions lawsuit settlement over bad power supply boards. You need to contact Samsung about this and get a warranty claim started, even if the original warranty is over the settlement terms will cover parts and labor. You can get additional information about this along with contact information here: http://www.ccl-la.com/blog/index.php/samsung-has-reached-a-settlement-in-class-action-lawsuit-over-faulty-tv-power-supplies/
Posted on Sep 25, 2012
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