Question about Samsung LN52a750R1FXZA
It sounds like a back-light problem. Check all the CCFL back-lights.
Posted on May 08, 2013
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Posted on Jan 02, 2017
I think the backlight is failing, you will need to have it replaced. It is also possible that the backlight inverter (power supply) may be faulty but that usually shows up a fault. I think it unlikely that the screen itself has failed unless it has been subjected to pressure damage.
I hope I have been of help but please do not hesitate to ask if you have any further questions.
I appreciate your vote if you appreciate my reply.
Posted on Mar 01, 2011
Do these bands appear even when no input is connected to the tv? It will help us isolate whether its an LCD controller problem or a problem with the video processing circuits
Posted on Feb 20, 2011
It sounds like you have a bad slave inverter board. I've fixed a few of them with the same problem and it's always been this board. With the back off of the tv, it will be the board located all the way to the end where the problem is. It will have several wires going from it to the screen. You will probably have to get the part number off of the board to be able to find one, as I couldn't find one by using that model number.
Posted on Sep 02, 2010
SOURCE: Samsung 46" TV. Model
This is problem of lcd panel (screen) that is going bad, however, in few tvs, T-Con board was defective that is also part of lcd panel but available separately, t-con board is located on top center of lcd panel at rear side, replace it that might fix tv problem.
Required t-con board is available in ShopJimmy.com for $73 (click the link to view board image and price info) and call local tv repairman to replace it if you are not handy with electronics stuff repair or have no prior experience.
If t-con board replacement does not solve the issue then lcd panel (screen) will be replaced but it would cost you approx new tv price.
Hope these info will help you.
Let me know if you have additional question.
Posted on Nov 21, 2010
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