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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Re: popin nosie and no sound from the speakers

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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Re: popin nosie and no sound from the speakers

 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 please let anyone else who is having this problem contact me as well.

Posted on Oct 18, 2007

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My Hitachi 43fwx20b has no sound

Sounds (pardon the pun) like a audio circuit problem which is very rare in this set.

Check a few things--if using a cable box hook cable direct to set to rule the box out.

Also if you have a DVD player do you get sound that way?

Last and least likely in this case is in the menu for the set is there an option for the speakers to be turned off?

Failing all these--set has an audio problem and although a very good set may be too old and too expensive to fix for this problem.

It is POSSIBLE also that a surround sound unit could be purchased and with a cable box with audio outputs on back installed and BYPASS THIS PROBLEM--BOX WOULD PROVIDE AUDIO TO THE SURROUND SYSTEM AND IT WOULD HAVE ITS OWN SPEAKERS AND AUDIO CIRCUIT.

Apr 05, 2012 | Hitachi 43FWX20B 43" Rear Projection...

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Audio but no picture mitsubishi wt-46807

Did you try the OPTION menu---think I offered that to you a few days ago......

Mar 27, 2012 | Mitsubishi WT-46807 46" Rear Projection...

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My Volume and Channel button won't work and so I have bout 2 remotes, neither of them have worked, one is the RCR311BR remote which has been noted to work for this tv. What else can I do

I have a 2000 model RCA P52923 and I had the same problem occur a couple of days ago. The sound hasn't worked for a couple of years, but the TV is connected to an RCA surround sound to resolve that issue. Most recently, while watching TV, it began to start scanning channels by itself. I shut it off and unplugged it for a couple of days, but each time that I turn it on, it begins to immediately start scanning each channel. Neither the remote, nor the channel buttons on the set are able to stop the scanning, and neither of them will perform any functions, including turning the set on and off.
Any advice would be greatly appreciated.

Mar 11, 2011 | RCA P52926 52" Rear Projection Television

1 Answer

I have a Toshiba 50HX70... I fixed the convergence issue around 6 months ago. Now the sound does not work... I turn it all the way up and you barely hear anything... I did move it recently, did I know...

Best best would be to try the following:

Start with taking the back cover off of the tv.

1) Verify if you can hear any sound whatsoever out of the speakers. If so, that would indicate that the speakers are still connected to the circuit board. If not, then trace the wires from the speakers to where they plug on to the board.

2) if you hear sound (hiss) in the speakers, but not the audio signal from your program you are watching, then look to ensure all connecters are fully seated around the RCA jacks in the back.

If those two do no produce results, then could be a solder joint on the board finally failed after moving the tv, or the amplifier for the speakers has failed. If you hear sound though as in step 1 above, i would doubt it is the amplifier IC.

Feb 20, 2011 | Toshiba 50HX70 50" Rear Projection...

1 Answer

I have a 37 inch sansui flat screen television model # HDLCD 3700. The sound just quit working; the picture is fine? Is thier any trouble shooting that can be done?

Please unplug TV from AC wall socket for couple of minutes, replug back in and turn it On and check sound.
If problem still exist, check internal speakers are enable / ON in Menu.
If speakers are ON and yet no sound, then need to check sound at Audio Out jacks at back of TV, hook audio cable (white-red rca pins) in audio out jack in TV and receiver/ amplifier to get TV sound in receiver/ amplifier speakers. This is a test/ check and you can use it to get TV sound through receiver speakers.
And if still no sound in audio out jacks in TV then TV needs main board replacement. Check with local TV repair shop for that.

Nov 15, 2009 | Projection Televisions

2 Answers

Distorted sound

Poor signal or poor connection to the cable probably. Could also be a speaker issue or the audio board on the tv is failing.

Most likely just poor signal or poor connection on the cable.

Oct 13, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

This is a used TV i got a couple of days ago. when turned on, the volume is fine, but after a few minutes, the sound starts to be fuzzy and gradually goes off entirely. turning the TV off, letting it rest...

What is your model number of your set. sounds like the audio output IC has a thermal issue. But need the model number as some Sony standard TVs suffer from bad SBX modules. Post the model number and I will be able to help you properly.

May 12, 2008 | Projection Televisions

1 Answer

Speaker Issues

likely that the output coupling capacitors are going or the amplifier chip is.
normally the popping sound will be from one speaker but the mixer may share the sound.
best to turn it off and use external speakers hooked up to your equipment. or start troubleshooting the circuit. turn on mute and see if that stops the issue,
or connect ext speakers to the aux out and see if they pop too. if so then the issue is with the amp not the outputs.
be certain that all is grounded well and remove any spike protection ac strips.

Feb 25, 2008 | Panasonic PT-47WX49 47" Rear Projection...

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