I have had past experience some years ago with new or fairly new TVs which had vertical deflection failure.
I suggest Checking all coupling capacitors on the circuit board around the vertical deflection circuits. One way to check is to turn the set on and slightly warp the circuit board and see if the deflection restores.
I have found bad solder joins in several sets which lost the Vert. deflection and was simply repaired by re soldering the connections.
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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
I have been searching for a remote for this TV(Durabrand bh2004d) and found one that works. The X10 Platinum Model UR73A 5in1 remote. Best thing since sliced bread. I tried this remote out of desparation when all others would not work. I picked one up on ebay for about $10 including shipping. This remote has worked for changing the video mode(A-B).and all functions and also controls my directv box, so it will be the only one that I will need. Hoped this helped
·http://esupport.sony.com/perl/news-item.pl?news_id=24 ·Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.
I am not sure about Direct TV but dish network does not allow the hookup to go through their box...it must go through the TV only. Speaking with Duraband at 1-800-256-2487 confirms you have to have a Duraband remote and universals won't program to it. Ask for parts dept. and order a new remote. Sorry - not good news for me either!!!