Help me the tv does not turn on it just stays on stand bye

Sounds like a bad power board. Sometimes when those go out they also take out other boards in the tv as well.

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Short circuit protection circuit inside the TV, activates. It finds some short circuit in the circuit board. Usually, it might be to its main board. Troubleshooting to this kind of fault is really a skilled one. Will be best to contact any service technician. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts. Check the site in 'Mosaic' view. It will make search easy.

I would check for any shorted or open components on the power supply. You may prefer to just buy a replacement power supply board. That model could use 2 different boards. You can identify which one you need by looking on the barcode sticker of yours. It should have a partial part number 57681301 (EAY57681301) or 57681305 (EAY57681305) on the barcode sticker. Below is a link to a common vendor I use for replacement boards.

www.tristatemodule.com

Try unplugging it for 30 seconds and see if it resets. If not, take the model # and get on the internet for the manual and go to trouble shooting page. It should answer your questions

If it struck the screen or near it the display panel (screen unit) may be damaged inside---fatal as the part alone costs more than a new set and if set was on or turned on after that damage may now extend to a board or boards inside the set.

Check the settings on the television, some modern day power-saving televisions have an auto off "timer" to save you energy if you accidently leave it on.

5 times blinks shows White Balance error in tv. You need to adjust Screen Volts (G2) and problem will resolve. Screen volts controls located at Focus Block as shown in below picture.

Need further help, please let me know.
Bye.

have you tried unplugging it and leaving it unplugged for a few hours possibly over night