Samsung LN-T4665F LCD, stopped working... spoke to someone earlier that recommended that I call Samsung... but that didnt work..

Hi Bryan,
These models are notorious for failing electrolytic capacitors in their Power Supplies, get the part number from the Power Supply Board and google it with +repair kits, there are many different kits available to tackle differing symptoms.Heres a massive 17 capacitor kit on Anazon: http://www.amazon.com/Samsung-LN-T4665F-Monitor-Capacitors-IP-301135A/dp/B00LU4UMW6

Contact the authorized service center. Your TV need a through checkup.
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/

What happens when you turn the TV on? Is there a clicking noise or popping sound?

Using the menu button on the side of the TV, use the up and down keys to select Input from the menu. Enter the Input menu, and use the arrow keys to select HDMI 4.

The tv power supply board have those dead parts call capacitors,they alway have capacitors leakages of gases,bulges ups on it tops or puff up on it tops.These capacitors are having leaking gases and dying reqiure changing,u know basic's electronic and soldering.Replaced these dying capacitors soon to dead capacitors,ur tv will power up normally and work quickly.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Changed 3 capacitors .. cost me 5 bucks like new

the power supply board has failed. call 1-800-samsung for nearest service center. power supplies are usually $125.00 plus labor, 1 hour maximum to repair.

check if the back lamps are still on when you lose image, all you have to do is get close to the screen and make is totally black and if is not that means you have a back light working, but if the back light is gone you may have a defective panel.

talked to samsung TA about the same problem I had and the recommend to replace the power supply first to confirm a defective panel because a panel is quite expensive

Here ya go.
http://www.samsung.com/us/support/search/supportSearchResultView.do?group=&group_cd=&type=&type_cd=&subtype=&subtype_cd=&model_nm=LN-T4665F&dType=D&mType=&model_cd=&menu=download&prd_ia_cd=&disp_nm=LN-T4665F&isEqualsY=

Link to manuals on Samsung's website.

The set is under a year old and is under warranty. The LVDS cable inside these sets have a history of coming loose. The problem could be the panel. Either way, the set is the problem and needs to be looked at. This set is worked on in the home and does not need to be taken to a shop, so, you can still use it. Contact Samsung at: 1-800-SAMSUNG Hope this helps.