Question about Samsung LN40A650A LCD TV
Does it go away when the set warms up? or if you tap the set? Sounds like a possible defective LCD panel tab. Samsungs and Sony's are known for this.
Posted on Dec 04, 2012
I had the same problem with my Samsung 40" LED tv. I was able to fix it for no money, all on my own. It took a little bit to get the picture back but it was a very easy fix. Watch this video on YouTube. I hope this helps.
Posted on Jul 22, 2014
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Posted on Jan 02, 2017
It transfer the universal image signal of TTL and LVDS signal to specific TFT LCD.
No offense, but it is a very complex subject.
Unless you're an EE.
Posted on Apr 09, 2010
Testimonial: "relevant response"
It is possible the problem is caused by a wrong option byte setting in the service menu. The correct setting depends on the type LCD panel used in that version. Version number can be found on a sticker on the right side of the television. A bad main board or TCON board can also cause that type of problem.
Posted on Jan 30, 2009
You have to be very careful with the flat ribbon cables and be sure not to have an electro static discharge to the board while handling it but it is not that difficult of a repair. It is the board that is located at the top center of the back of the lcd panel. Depending on your problem, eg. line in picture, no picture with backlight.... it unfortunately only fixes about half of the units. The other half need lcd panels which are very expensive. hope this helps.
Posted on Apr 02, 2008
You cannot test the T-Con bd with a meter. However if you have the luxury of having another same model tv, you can install the bought T-Con bd and see if it is good or bad. Since you said the Menu and channel flashses, then I would replace the Main board.
Posted on Apr 16, 2010
SOURCE: Samsung ln52a650
This is called the LVDS cable.........try Encompass parts.com they are samsung distributor........shopjimmy.com has salvaged sets where you can buy the cables and ribbons for a given model as a set
Posted on Jun 02, 2010
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