20 Most Recent Samsung LE40R74BDX 40 in. LCD Television - Page 7 Questions & Answers

Tries unplug,replug,same prob.ur power supply board it dead.

ghosting is caused by ingress, or interference, getting into the cable signal. make sure all of your cable connections are tight. if this doesn't fix the problem, contact your cable provider, as the problem may be outside the house.

Download the following guide that shows how it is done

http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=uk&CttFileID=2333682&CDCttType=UM&ModelType=C&ModelName=LE32B650T2W&VPath=EM/200909/20090925094405734/BN68-01902F-01Eng-0909.pdf

Panasonic will not recommend any other brand as they don't test other brands, its a Liability issue for them, after all if you set falls off the stand your calling them. For a stand, find one rated for you TV's size and weight, try not to be on either end of the range as you want to aim for center of the range. Look for 22-32" and weighted for at least 25% heavier than the set.

I had this problem on my 42" Philips. Just got it yesterday and worked fine on the tv stand. As soon as I mounted the TV to the wall via wall mount system, I had the exact same issue you did. Figured it out today.

The wall mount was putting pressure against the center of the back of the tv (tv set had a slightly rounded back plate, and the mount was a flat plate). As soon as I put spacers (part of the wall mount hardware set) between the wall mount braket and the tv so there was no contact except at the mounting holes, the tv worked fine.

My theory is the pressure pushed the tv back plate against some board components which caused them to overheat (no air flow); or put pressure on internal connectors. I dont know.

Hope this helps, may not apply to your situation.

it needs professionally delt, because it seems some power fault in it.

Have you tried playing with a DVD? If it does the same, the main board needs replacing.

It is a fault with your power supply module actually inside the tv...take it to a local service center or if its under warranty take it back. surge protectors help prevent issues like this occuring due to damage to the power supply from surges but not having one wont cause these problems unless it has recieved a surge.....in future i would use a surge protector on all your expensive appliances, surges and power fluctuations are very common in mains power i live near the mines and we have power problems all the time!! hope this helps,ben

You either have bad Main bd and or a bad T-Con bd on the Panel. Have a trained samsung tech troubleshoot the set.

Since your tv is a new model it will be IN Warranty. Call 1-800-Samsung and they will set up a service call and send your ticket to a Qualified ASC in your area. Ask if they can send a Samsung Field Engineer to repair your tv. They are nmch more highly trained and you will have a better repair experience.

you can only use your tv to scan for channels with an antenna or if you have that tv hooked to cable television. use your Directv receiver to scan for channels, if you have an antenna hooked up to it. --------------- click this link for more help http://www.highdefforum.com/directv-forum/77638-new-lcd-tv-d-sd-no-weak-signal.html thaNKS.

if you are using satellite receiver check system settings and screen format.

Normallly, if the picture size button on the remote for the television does not achieve the desired affect, then, a cable box or a satelite box is where the change needs to be made.
For example:
A Motorola Cable box needs to be set up to go to a wide screen or zoom when an analog signal is detected.
Some Dish Network boxes have Size buttons on their remotes and also in their main menu.
It's difficult to determine the repair without knowing the types of the peripherals.
Hope this helps.

replace the mainboard and the TV will work better than a new one.

Good luck.

check connections