Question about LG DU-42LZ30 42 in. LCD HDTV

1 Answer

Picture goes in and out but the sound stays on?

My television turns on no problem sound works great but the screen goes in and out? Can someone please help me troubleshoot
Thanks

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  • Anonymous Oct 20, 2008

    I have the same problem, but I thought it was my cable server.

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  • 50 Answers

Look for some loss connection/ cold solder in the circuit board...

Posted on Aug 11, 2008

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1 Answer

Picture works for a while than goes out, but the sounds stay on. I turn the TV off wait a minute, turn on, picture works than goes out again ??


It sounds to me like you either have a bad inverter board(The board that lights up the screen),or a bad bulb in the screen itself.When you turn it on,and the screen goes away,shine a light on the screen,and see if you can see a picture.I hope this helps.Thank You very much!
Tyler

Jan 25, 2011 | TruTech PLV1615T 15 in. LCD Television

1 Answer

Sound stays on, but no picture- goes black and stays that way.


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

May 04, 2010 | JVC LT-26C31 26 in. LCD Television

1 Answer

Screen goes black but still sound


This is inverter or backlighting problem. Can you try switching it on and off quickly for a couple of times and tell me if these '2 seconds' get any longer'. If picture stays longer and longer before shutting down, one lamp needs replaced-if not, please replace inverter board

Jan 15, 2010 | Goodmans GTVL19W17HDF 19 in. LCD TV

1 Answer

Picture goes off sound stays on


Hi

Yes the problem has been solved. finally. The information on your web site was correct but the replacement board that I needed was no longer available. I ended up taking it to the local repair shop and he "worked on the board" that was messed up. Cost about the same as a new board would have, if I could have gotten one. Thanks for the great web site.

Dec 30, 2009 | Westinghouse SK-32H240S Television

1 Answer

Tv is on, after a few minutes it goes black and there is no sound. The indicator lamp is still green and stays solid the entire time. Without turning the TV off, in about a minute, you hear a small buzzing...


Someone else gave me the tip as I had the EXACT problem, but no buzzing. Unscrew the panel on the front bottom of the tv. Once that is off, there is another screw that opens a little panel. Unscrew the single screw with an allen wrench and pop out the bulb and casing. Mine was full of dust etc. Used an LCD cloth, but compressed air would do the same thing, put it back together and it works great!

Jun 11, 2009 | Sony KDF-E55A20 55 in. LCD Television

1 Answer

Picture goes of and on with HDMI1 on screen sounds stays on


This sounds like the signel board is going out in the HDMI jack and needs replaced! Also try another jack to make sure its not the cable!
Please rate my response!
Rhank You!

Jan 15, 2009 | Panasonic Viera TX-32LX70 32 in. LCD TV

1 Answer

Sound but no picture


check with a flashlight against the screen for picture, if present backlight inverter has failed.

Dec 07, 2008 | iLO 3200 32 in. LCD Television

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