Question about LG 52SX4D 52" HDTV

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Popin nosie and no sound from the speakers

Ok i have this issue that just started just a couple of days ago i have no audio from my speakers when i watch my off air hd channels or off air tv or i want to play my xbox in componet input or input 2 but i have no issue with my satlite using my hdmi input 1 or 2 i do have the service remote but it is limted i know there was a TSB on this issue i seam can not find it i bought this tv in july 06 d.o.b of the unit is 3/05 i do have the service manual but it does not help me i call lg there are sending me flash card to update but i don't know if that's going to help i also have had a hard time using the tera term pro software that is used to update threw the serial port on the back of the tv i went to lg tech supports web site a downloaded the updates i used a back door there site found out that there were lots of problems with this unit and that was for many reasons this was discontinue so qickly so if there anybody that can help me that would be great thank again

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  • Electrolad Nov 19, 2007

    This is the second unit I have had the audio fail on. The first one was within the first year. They replaced the entire tv and now a year and a half later the replacement has failed in audio. The picture is fine, just the audio is dead.

    Is there a component I can replace? I never thought the audio was very good in the tv as it never had much volume. Now it has none.



    I am an electrical engineer and have plenty of practicable experience in electronics so if I can get my hands on the schematic for this tv maybe I could troubleshoot it. But if the manufacturer has a known fix, I would like to know what it is before I rip it apart.

    The serial number is 505KCNL1B471.



    I can be reach at rhreyburn@aol.com. Thanks for anyones help.

  • bmcmarteney Nov 07, 2008

    We have had our tv for about 2 years now. The speakers went out about 9 months after we bought it. We have our TV also hooked up to go through stereo speakers if we wish for movies and things. The sound would still come through the stereo but not the TV. The technicians came and picked up the tv to look at. They brought it back saying we changed the speaker settings of which we never touched. So here a few months back the speakers went out again on the TV. About two weeks later the TV speakers stated working again.



    Now here a couple of days ago the speakers went out again on the TV. We haven't bother calling anyone becuase last time they were not much help. Anyone have any ideas on how to solve this issue?

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Did you fix your problem? If so, how?

I am having the same problem and at times it tells me my lamp is bad, which I know it is not because that is new.

Any ideas?

Posted on Aug 12, 2009

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 have had this problem several times i think this is a manufactures default. i am in the proccess of contacting the manufacture email me we can talk aj@metrogeneral.com please let anyone else who is having this problem contact me as well.

Posted on Oct 18, 2007

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