Why is my LCD Tv Screen flashing on and off? LG 50LB5900 LCD TV

If the back light is flickering, you can test and replace the LED in the back light from these links: https://how-to-repair.org/repair/lg-tv-repair-manual-pdf/lg-led-tv-no-backlights-32ln5300-32ln5310-32ln5700-voltage-test-troub/2pyuXwNkBMA.html and https://www.youtube.com/watch?v=_poWTEihIJU. You can download service manual of LG 60LB5900 on this link for reference: LG 60LB5900UV Service Manual free download schematics datasheets eeprom... Fix Led Backlights for TV or Monitor Lg Led Tv No Backlights 32ln5300 32ln5310 32ln5700 Voltage Test Troub Lg...

Back light problem. Check and replace the damaged components at its back light inverter board. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/
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its hard to find screen replacement only since only in the manufacturer have spare it. or you can find already used lcd screen in the electronic shop.i suggest that you buy a new tv instead of replacing the screen, if you can get replacement screen from the manufacturer i'm sure it was expensive like replacing with new tv.

Not possible to buy a tv LCD screen panel as a refurbish parts by any body else.Except buy it from LG tv corporation themselves.The tv LCD screen panel are 90% important to the tv functions and the cost.Replacing the tv LCD screen panel will cost the same as a new tv.Sorry it is time to buy a new tv.The tv with a damages LCD screen or broken LCD screen panel now only can used as a salvages tv for it electronic PCB boards for other tvs to used as spare parts that it.

Not repairable or worth repairing.Only must have a replacement of the LCD screen panel.Not buy able any where except the tvs corporations themselves only.The tv LCD screen panel it is 90% important to the tv functions and the cost of the tv.Can't do replacement of the tv LCD screen panel will cost the same as a new tv.Tv now only worth as a salvages tv only for it electronic boards only for uses it PCB electronic boards as replacement for other used tvs need used PCB boards only.

This problems ur tv are having are only can be causes by two boards,the tv power supply board or the tv Tuner signal board.The tv power supply board that the board where the power a/c cord plug into it.The tv Tuner signal board that the board where the incomming broadcasting signal wire plug into it.This problems very easy to fix.If it is the tv power supply board is the causes,because u can check the tv power supply board carefully u will find dying capacitors parts that will bulging up or puffing up on to it tops.U have all the tools and know basic electronic just replaced all the dying capactors for all new capcitors parts same micro ferit but the capacitors voltages like 5 or 10 voltages higher for better heat resistance for the life of the tv power supply board.If it is the tv Tuner signal board,very hard fix and determine where the dying parts are in this board,because this board is cover with many ICS chips on this board.If the tv the Tuner signal board is the problems best just buy the whole refurbish tv Tuner signal board for the replacement.Or u can tries websites like Shopjimmy.com,Ebay.com to buy the whole refurbish tv power supply board too,if u don't know how to or have all the tools to replaced those dying capacitors parts and also can buy the whole refurbish tv Tuner signal in these two websites too.

Now,what happening to the tv power LED light indicaton,when u turn on the tv now?Tv don't have any power LED light incation at all or power LED light indication is flashing?Check ur power source with other devices,see if the outlet is the problems,if tv still have no power to the tv all.Tv LED power light indication is flashing?Tries tv unplug,replug it back like about an hour later for the tv to do a resetting itself back to the factory setting.Now tv should work be again.Still have the same problems,this indication ur tv have a bad or a dead power supply board.That the board,where the tv power a/c cord plug into it.If u understanding basic electronic and have all the tools.Take the tv backcover aparts.Check the tv power supply board carefully for dying capacitors parts,these capacitors parts are dying or dead,most of the times they're bulging up or puffing up onto it tops.Replaces these capacitors parts with new capacitors parts with the same micro ferid but higer voltages like about 5 or 10 voltages higher for better heat resistances and last longer.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hi,
LCD Panel (screen) would cost you approx new tv price. I would recommend to buy new tv instead of lcd pane (screen) replacement of this tv.
Thanks.

Call LG trade in the broken LCD screen tv.Get some discount for the purcharse of a new tv.Not worth it to replaced the LCD broken screen,because they're limmtted produce,replacing the LCD screen and labors will exceed or same as a new tv.

It is so sad that you got your screen broken.

Yes you can have a replacement screen but you might need to locate the manufacturer service center around you at your location. I have had a replacement before too. It will not cost so much.

Good luck and rate this.