I have a LG 47 inch flatscreen.i cant find any audio output plugs to hook it up to surround sound.how are you supposed to hook it up.

With out a model number of your unit I can't be of perfect help, but I believe your set does not have an audio output. The only way you will be able to use the sound bar is to run the audio from your cable or sat box to the sound bar.

It sounds like you are wanting better sound on your home theater.

If this is the case, you can invest in a surround sound receiver and run audio from your sources to the receiver (rather than to the tv).

Basically you would hook your cable/satellite, dvd/bluray, and other items into the surround sound receiver using HDMI, Optical, or RCA-style Stereo wiring.

Once this is done, you can run a single HDMI from your surround sound to your television for the crisp awesome video that your LCD will produce!

If you are looking to run an external speaker directly from your television, it has to be powered on its own, as the television's output audio isnt that strong.

In essence what you would be purchasing is a very wide bar (that is a speaker) that is powered, and has an audio processor built right in!

These are the solutions that I would recommend. If you appreciate them, please vote!

LG documentation states:

When you use SIMPLINK function, you have to

connect to the OPTICAL IN 1 jack to enjoy TV
sound to your speaker system.

Basically you need to have the Audio go from TV to receiver and setup receiver to that Input to output surround sound to all speakers.

If you have a cable box or satellite receiver, hook that output into the receivers input and that should work.

My setup is DirectTv HDMI output goes into the LG Home Theater HDMI Input 1, and LG goes HDMI output into the TV HDMI input 1.
so to watch DirectTV, I switch LG Home theater to HDMI Input 1. and TV is on HDMI input 1 (to view LG HDMI output from DriectTV, Blu-Ray, Vudu, etc.)

What kind of the connector for the sound are you trying to use? The TV has RCA audio outputs (Red and White RCA) and also optical out put for digital sound output.
http://reviews.cnet.com/flat-panel-tvs/lg-47lg50/4507-6482_7-32915929.html

User manual download: http://www.lg.com/us/tv-audio-video/televisions/LG-lcd-tv-47LG50.jsp

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Have you tried looking at the sound set up menu on the TV? Some sets will only output sound via certain sockets which have to be switched on. Others will only output sound via internal speakers till they are switched off etc.

Use the audio jacks in the Monitor Output section. See pages 9 and 19 of the manual:
http://www.hdtvsolutions.com/pdf/50PX5D-0314-50px4dman.pdf

1- check all the cables that are hooked up to the TV 2- try to get audio to and external speakers or home theater (to check the sound card). 3- if the step # 2 don't work either you have a bad sound board on your TV. 4- opn the TV try t get the part # of the board, and replace it

here you go (start at pg 28) user guide http://www.lge.com/us/products/documents/LH30Manual.PDF
specs http://www.lge.com/us/products/documents/42lh30spec.PDF

if this helps feel free to rate

We had the same problem of pathetic sound quality and volume with a sony brava. Thats just the way they make tv's these days because most people buy a surround sound system as well. We bought logitec computer surround sound speakers for about $140 and plugged into the ear jack, problem solved, we have heaps of volume and stacks of bass.

were is the output to this tv