How do I determine my tv's configuration.

Have you tried to do a "reset" ALL modern electronic items often get "locked up" and unplugging them from the wall will often get them going again. Unplug for at LEAST 30 seconds--then try again. If this does not help--the SMPS board may have failed on you. A good repair shop may be able to repair the board instead of replace it.

Yes. It is repairable. Contact any service technician.

The original Samsung stands will be very hard to find, only available from somebody that has wall mounted their monitor and no longer needs the stand. You can get a third party stand such as the one in the link below that will mount your monitor. All modern monitors have mounting holes in the back for VESA mounting, this is a standard configuration.

http://www.amazon.com/Adjustable-Tilting-Mount-Bracket-10~25inch/dp/B003L171KW/ref=sr_1_12?ie=UTF8&qid=1339684562&sr=8-12&keywords=monitor+stand

I could not locate a stand for purchase on http://www.partstore.com/Model/Samsung/Samsung/PDP4294LV1.aspx
By the way, your tv is a rebranded Samsung model.
Without the stand, you only option would be to wall mount the tv.
You can purchase a wall mount for your tv from your local Wal-Mart or something to that effect for around $30.

Your tv is not fully VESA compliant. You cannot remove the collar. There are mounts available that grip the screen instead of screwing into the back. This type will look better.

Absolutly, I have wall mounted a few dozen above fireplaces in the past 5 years; I can even send you over some pictures and suggestions come time for the install.

What is the wall material? Brick mantel or drywall with wood studs?

Although a TV looks attractive about a fireplace you have to consider that it is fatiguing to watch from such a high height. The optimal average height for a TV is 45" to centre (depending on furniture). If you exceed that by a few feet watching a lot of TV is awkward.

The advantage is it combines the focal point of the room, and instead of having a picture about a fire place, your TV becomes the work of art and can be used as a digital picture frame.

try calling 1-800-samsung to find the closet repair center.

we really cannot speak for the Geek Squad. You will need to look at the contract you sign with them to determine if they provide the bracket or require you to do it. most of the time you will need to purchase the wall mounting in addition to the tv.

How long it will take will depend on the professional. It should take less than 30 minutes.

CH

had the same problem. I went to bestbuy and they gave me the four screws and plastic spacers needed free of charge yesterday...

I have recently posted a question regarding my Samsung 52 inch LCD hi def television. After doing some research online and reading some others experiance I have adjusted my settings in the menue of the tv to provide the best picture.