I have samsung(hitron) tv purchased around 4 years before. When the external power supply(switch) to tv is switched on, tv is not receiving any power. i mean tv is not functioning. what would be the problem

I think almost all switch mode power supplies can run on 220 vac but I would contact samsung and ask them to be sure

hi ya

possible ways - they may be a button on the tv, sometime marked source - or a o with arrow through it

or

best bet is to purchase a one for all remote, for tv as you have a large brand these should work fine,

even try a pound shop one, as it a big brand

samsungs direct link is http://www.samsung.com/us/support/owners/product/HL-P5663W

they may be able to sell you an original remote

hope it helps a little best wishes davetech

ghosts. actually, check your house wiring, for leaks, open grounds, etc.

Is this a DLP TV? if so you just need a new lamp $75-$200
This is easy to switch the lamp in DLP tv's they are made to be switched by the owner,
A lamp will last from 1-4 years,,

There is a problem with the power supply, which may be due to bad electrolytic capacitors. Alternatively, there may be a bad relay in the power supply.

Not knowing the specific model for your Samsung TV and how old it is, I can only offer this possibility because I've encountered what sounds like the same problem. Certain models of Samsung HDTVs around 3-4 years back have a design problem with their power supplies - they put in the wrong size capacitors (aka "Caps"). After a few years, the capacitors fail, and the power supply also fails. I think it's possible to replace individual capacitors, but most likely you will have to replace the power supply. Unfortunately if it's out of warranty, it will cost several hundred dollars, especially for a home / onsite visit. There is a visible symptom - from 2-6 capacitors on the power supply board will bulge out, as shown in this pic:
You might try calling Samsung customer service and tell them you are aware of problems with their power supply design, and try to get them to repair the TV for free, especially if you are just out of warranty.

you need to replace the 10v blown capacitors with 16 volt or higher go to utube and type in samsung power supply fix and you can do this yourself for about 30 bucks

Capacitors, capacitors and capacitors. I can't stress that enough. Common issue with these samsungs. Check those capacitors before changing any board.

If there is a bad capacitor in the power supply, you will either get one of two symptons.

1 - Solid red Led and thats it. You hit the power button and nothing will respond.

2 - You just hear a click repeatedly.

I would venture to say it is the power supply first. Capacitors in LCD power supply's frequently go bad after a year or two. LCD displays very seldom go bad and I have not seen one kill a set completely.

seems like you are having some problems in the power section of the tv. they are either one capacitor gone bad or some of them gone bad. do you know how to check capacitor? if not just take it to a repair man. good luck