Screen going black while the sound stays on - LG 42LS5700 42" 1080p 120Hz Edge-lit LED LCD Smart HD TV [42LS5700]

Are your backlights going out?

go to this link might help you.. SAMSUNG GT19300 black screen Google Search

Hello, it sounds like the chip on the dm board is going bad, but a picture of the screen would tell me a lot more....tks

Thats usually an inverter board issue. Replacing the inverter should solve the issue in most cases. You can get the replacement inverter board from www.tvcircuitboards.com

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

This unit should still be under warranty and should be taken in for warranty service. Any attempt to access the interior will void the warranty. It is important that a complete description of the problem like you entered here be taken along when you bring the set in for service. This will insure that the servicer be able to reproduce the problem and resolve it.

From your description (and as a servicer), I would be looking for a component that is heat sensitive. These types of problems are fairly easy to locate and resolve.

Please take this in for warranty service and update this when you find out the details.

Thanks,
Dan

go here and order the replacement inverter board. this will fix the backlight issue or no picture issue

http://lcdparts.net/LCDTVInverterdetail.aspx?InverterOriginal=UI8007S-1MSS

it sounds like your "lamp" is going out look for a hidden compartment.. or in your owners manual to see where its located its an easy fix and costs much less than a new tv

I have the same problem, if anyone has a solution PLEASE mail me at [email protected]

You have sound but no picture. Green power light is on and NOT flashing. You get a screen flash or flicker on power-up or even a minute of screen before going all black. It is your inverter board. Common problem on LCDs (maybe more so on Phillips?). They are easy to replace (unplug-plug) and are available on the net.

Veritas