LG TV won't turn on. Power light flashes red/green.

https://community.sony.com/t5/Television-General/Red-light-blinks-6-times-tv-won-t-come-on/td-p/47107

Red flashing light on tv. Power went out

you need a mainboard or powersupply

Try changing the input device to something you are sure, works such as a DVD player.

Switch off TV manually, switch off power, remove plug and retry after 48 hours.

If problem persists, please refer it to a qualified service technician.

tried to check first the power supply if no any sign of bulging electrolytic capacitor this was a common that we encountered trouble.

replace the power supply board. You can get replacement power supplies from www.tvcircuitboards.com

Bad Capacitors in the Power Supply Take to a Good Technician

Tries change the tv projection lamp.Tv projection lamp ben in the tv like 1 1/2 or 2 years already,tv watches daily 4 or 5 hours every day.Yes.Than the tv projection lamp life are ended,now tv require a new tv projection lamp replacement.

this is a error code from the manufacturer.
count the flashes