There was a lightening storm while watching our tv and the tv went off and now when we turn it on the on indicator blinks red twice and then turns to a steady white but does not turn on. it was plugged into a surge protector
Your surge protector did not function properly, contact the manufacturer of the power strip.
SOURCE: I can't turn on my 32 inch plasma tv by LG.A green
The flashing indicator is telling you the fault. Give the number of flashes to the LG service department and they can help you with your issue. It will likely need service.
SOURCE: lg model 42pm4m plasma monitor won't turn on, red
Does the tv make a clicking noise like its trying to turn on before the tv goes into standby and the LED starts flashing? I suspect this is due to a shorted component, most likely to be in the 5V(switching) line and just want to be a bit certain before we start testing the power supply.
SOURCE: no power
Sounds like a bad power supply.
Find a new power supply, pop it open and change it out. Isn't too hard.
SOURCE: My LG 42LC7D, when I turn it on, Blinks twice,then turns off
Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. When this happens, the TV will keep turning itself OFF or will not turn ON at all. This keeps the other part inside from being damaged. Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The common part to go bad for flat panel screens circuit board that powers the screen. Most manufactures call it a Backlight Inverter Board.
But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptoms.
You have a few choices:
1. You can again try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, schematics, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15 by searching on the internet with the part number.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
SOURCE: Power problem with an LG 50PC3D Plasma 50" TV
YOU PROBALY HAVE A BAD Y SUSTAIN BOARD OR POWER SUPPLY. POWER NEEDS TO BE DISCONNECTED FROM THE Y SUSTAIN AND THE VA & VS VOLTAGES CHECKED.
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