LG flat screen tv

inverter board issue.

LG LED TV has no picture (black screen) but still sound ...

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My 32' LG LED TV has suddenly lost picture! The sound is all right but the Screen is pitch black. After switching it on the picture flashes for a second and then the screen goes completely black.

LCD Easy Fix (sound but no picture) - YouTube

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LG TV : Picture not coming on screen, but TV is on. - Forums - CNET

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LG LCD TV REPAIR - NO PICTURE SCREEN FIX REVIEW ...

? 5:29
www.youtube.com/watch?v=PWoz_-3OHIM
Jan 25, 2013 - Uploaded by Tampatec Common LG LCD TV REPAIR - NO PICTURE OR BLACK SCREEN FIX ... came on good with green light working properlybut still no picture.

Try the old flashlight test, turn off the lights in the room. Turn on the set and flash a bright flashlight on the screen. Do you see the image or is the screen totally black?? If you see the image, then most likely you have a backlight problem. Verify that you have 24V on the power supply for the inverter

Hello, if the model number is correct it's not a projection tv, but an LCD tv. If that's correct, it sounds like a bad main board issue part # is AGF31218501...thanks

Hi, you are lucky to get sound, most LG TV's will not power up , the psu protection kicks in.

First make sure all leads a plugged in and are secure.
Is it under warranty?

I just hope it's not a screen problem.

Sorry I can't help - Anthony

There will be a problem with the backlights not being switched on, you would need to check if you are getting the supply voltage to the Inverter board (24V). If not check the power supply, if it is present then check if the backlights are functioning with a backlight tester, if these are ok check the capacitors on the inverter board. If the backlights are faulty then a replacement screen would be required.

There are 4 capacitors on the power supply board that need to be replace. They are in the same area, same color, look for bulged caps.

Hi, I would buy your TV

I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions