Question about LG 50PG20 50 in. Plasma HDTV

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How can I run the audio from lg 50pg20 through old receiver?

I have an LG 50pg20, a 10 year old receiver.

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  • yourgraphics Feb 19, 2009


    Any idea if they make an Optical to RCA cable or converter?



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I downloaded the manual for this set from LG's site and looked at the back panel diagram, and their instructions for connecting audio out. This set has only a digital audio output available, and your receiver probably has no input for that. Sadly, this means you can't connect the TV audio to the receiver.

What you can do, however, is connect the audio from an external source such as a DVD player, cable converter or satellite receiver to the receiver, and connect the video from the device to one of the TV's inputs. Then you could listen to the sound through the receiver. If you want to, you can use a Y-adapter (two, actually, since you have right and left channel sound) and connect the source audio to both the TV and then you would have the sound through the TV speakers as well. When using the TV's internal tuner, you would have sound only from the TV speakers.

Posted on Feb 19, 2009

  • Feb 20, 2009

    You can get a converter but it only converts from one optical form to another. The digital audio output is a laser light source (the manual actually warns against looking into the end of the cable), and the RCA inputs on your receiver expect electric voltage on copper wire. It would probably be more cost effective just to buy a new receiver with optical input ...

    Hey, that's an idea that didn't occur to me before. Look around for a cheap receiver with a digital input, and feed its record out connections (sometimes labeled "line out") into one of the inputs on your current receiver. Then you could use the output from the TV.


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I have a 50PG2 and it has (& also in the manual) an AV port out for an external second monitor or TV. (2 x audio and 1 x video) . I feed the Audio from this port to my receiver for general audio whn not wanting the full theatre running. Can also use this port to feed audio to standard definition DVR for recording (downgraded) HD programs off air.

Posted on Mar 09, 2009

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Use RCA cables from the back of the TV into audio input on the reciever?
Thats how its done in most circumstanes. What model reciever?

Posted on Feb 19, 2009

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