Power disconnectd when i switch on my TV

it is possible that your tv IR circuit is the problem could be that a cap needs to replace.as posted by you saying that when you plug in the tv the remote works, that means voltage charge up the cap and the tv works with the remtoe but as soon as you switch off the tv the cap discharge the stored voltage so you will have to plug in the tv for the cap to charge,and in order for the remote to activate the tv.that cap can be found just near the IR diode.good luck.

Check for any loose contacts at the power plug point. If mains power inerruption takes place, this kind of fault can occur.

it is basically power suplly issue need to be technically handled

Switch off TV, switch off power, remove plug and wait for 48 hours and retry. If problem persists, I suggest it is better to refer it to a qualified service technician, since the back cover has to be opened for investigation/rectification.

We had this problem, everytime we switched it off at the main plug, so when we could, we would leave it on standby. On this occasion we had to switch it off completely, but when we tried to switch it on again it wouldn't come on. So we put the t,v in another room, a much warmer room, and after leaving it for a few days hey presto it started to work again.

I am not sure what type of set you have, but if it is a newer one,then it should have a separate power switch on the back. I would try shutting it down for a few minutes and powering back up. It almost sounds like the tuner has gone. Are you getting any colors? or just gray snow?If you can see the menu at all, I would also try reset to factory defaults... good luck

Well, considering all TV's these days have what is called a SMPS which means Switch Mode Power Supply. As soon as your plug enters the outlet it will ark, because the power supply starts up immediately, so my suggestion would be is to kill the breaker to that room then plug the set in and then reset the breaker. Let me know how it turns out.

 i think  there  should be  gone a output transister at  horizontal  stage.   if that tv is   21" or less  use  BU508F,D2499,1803DHI, OR = .......   if that tv is 25"  then use   D2508DF OR =.

if that proble is not above  then check the power suplly once  and check EHT(LOT) finally   .

The bang you heard was probably a capacitor. Since you are still hearing the TV attempt to power on, your power supply and it's fuse are likely fine, but if the capacitor was on the mainboard, the TV would require service unfortunatley.