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My 42" LG LCD has a tinny sound, becomes staticy and then goes quiet after a few minutes, this at full volume. If I reduce the volume the sound will return for a few seconds.

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  • loubresnick Sep 07, 2010

    I've reset the TV to the factory default settings and nothing has changed. At about 80% volume, using the cable box for volume or the unit tuner (or any combination of both) the problem remains. What I do notice is that the volume will return for a short while if I raise or lower the volume although it is still tinny and staticy.

  • loubresnick Sep 09, 2010

    Please reply to my latest comment. Thank you.

  • loubresnick Sep 10, 2010

    My 42" LG LCD has developed a tinny sound The left speaker has a lot of static,the volume is very low and after a few minutes the sound goes away completely

  • loubresnick Sep 10, 2010

    My 42" LG LCD has developed a tinny sound The left speaker has a lot of static,the volume is very low and after a few minutes the sound goes away completely

  • loubresnick Sep 11, 2010

    Thank you. How do I identify/locate the logic controller?

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In that case the problem is in the logic controller - the audio control section is faulty.  you can test that very easily: just jump the in and out pins on the controller and the sound should spike to full volume. You must replace the logic board.

Posted on Sep 10, 2010

  • Azrael SRL Sep 12, 2010

    The buttons (on the case) and remote sensor board is attached to the logic board - the one on which the processor is soldered. The entire logic board will have to be replaced - a new part can be ordered either directly to a LG dealer/repair shop or thru specialized sites like



    http://www.shopjimmy.com/

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  • Master
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Sounds like either your audio fuse or power supply is the problem to ensure this is the case before returning or having a technician look at it. what you will want to do is go into the users guide and find the reset factory defaults option usually it involves holding a button or two while starting the device however are sometimes very different. this will ensure that it is a hardware problem before spending anytime or effort returning or fixing it


hope this helps
Robb

Posted on Sep 06, 2010

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