Question about Samsung SP-S4243 Television
It does sound a lot like a buffer board problem, Just which one is the question. Sometimes it is in fact a connection issue. But 1/2 of the screen missing sounds like maybe connection between the 2 buffer boards. It could possibly be the panel. If that is the case. ITs over for that set. But i would suggest first calling samsung and asking them to extend the warranty for 90 days or so. Sometimes they will do this for nice customer such as yourself. 1-800-SAMSUNG. Let me know how this turns out first then we can proceed further if needed. Good luck and keep me posted. Sincerely Jay
Posted on Jan 31, 2008
SOMETHING IS LOADING DOWN THE POWER SUPPLY...COULD BE THE Y-SUS BOARD OR UPPER OR LOWER Y-DRIVE BUFFERS...TAKE THE BACK OFF SET..GIVE IT THE SMELL TEST AND EYEBALL THE FLAT I.C.`S ON THE THIN BOARDS TO THE LEFT OF Y-SUS BD. IF NO BURNING SMELL AND NO CRACKS ON THE FLAT I.C.`S ...TRY REPLACING THE Y-SUS BOARD...NUMBER ONE PRIME SUSPECT...DO NOT POWER UP SET WITH BACK OFF UNLESS YOU ARE QUALIFIED SERVICE TECH...JOE ACE
Posted on Jun 12, 2008
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
Each pixel of a plasma television contains a red, blue and green phosper. These immite a flourescent light individually to produce a nice bright picture. The odds of all of these pixels dying at the same time is so slight, it is likely to never happen before the return of Christ. So your black screen is another problem. There is an ultroviolet light emitting photo that causes these other photons to give off light. My diagnosis without actually inspecting your unit, is that your ultraviolet photon generator needs replacement. These usually last in an excess of ten years so while it may be a costly repair, if you otherwise are happy with your unit, you may want to repair it. Your only other option is to replace it.
Posted on Jun 28, 2009
One of your transformers on the inverter board are failing to sustain regulated power to the florescent lamps resulting in a dark picture. Also check the SMD fuses on the inverter board(s) see if they have blown. You will need a continuity meter to check them. You can get one from radio shack and be sure to get one with audible sound....you don't have to replace boards when you can fix them.
Posted on Jul 10, 2009
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