Un46eh6000fxza Samsung tv screen gone black. It powers up and makes the start up sound No boards appear burned

SOURCE: how hard it is to replace by yourself main board Samsung LN-T4065

You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.

The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.

SOURCE: 42 inches samsung plasma screen with sound and without image

Check this link to find the LJ41-02759A board for your TV. These boards fails quite often and the TV will power ON but with the same symptoms as yours.

SOURCE: Screen marks on my samsung lcd tv.

Sorry not a solution just confirmation of similar fault on a Samsung 32" . I to have this problem which appears to be getting worse . started with 1 mark and has now spread to about 20% of the screen albiet numerous marks. It appeared after 18months to 2 years after purchase in 2006 so now 4 years old. I've accepted there's nothing to be done and out of warranty. Problem is purchase a new set Samsung or another. But will I have the same problem 2 years after??

SOURCE: Which Replacement Power Board for LNT4665F Samsung LCD TV?

Howdy,
It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

SOURCE: We have Samsung LCD model LN26A450C1D, which is

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.

Testimonial: "Thanks for quick response! I will try. "