My samsung LCD TV LN26A450c1D won't turn on.

Here is some troubleshooting guidance:

Is it repairable, well, this question can be answered only after opening the back cover and evaluating the damage. From you side, please connect the TV to a different power outlet where other similar devices are working and see. Then try changing the input device to something that sure works. If it does not work even then, this may need attention by a qualified service technician.

Change the input to some other device and if you see same problem, there is something wrong on the PCB inside. It is better to show it to a qualified service technician.

I have the exact same problem and am seeking a solution too ... it won't boot past the Vizio logo on the screen and the remote and side buttons won't work :(

Hi replace the fuse in the wire connecting the mains plug. It's generally located within the 3 pin plug.
If you are lucky it maybe just a fuse blown out.
Thanks

Break down after 2 years for LCD TV, that is very common. They are built to fail.
If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

I have the same problem.

Replace swollen capacitors on the power board.

check the cable once more then nothing different?
replace the Main Board