Need instruction manual for omnimount om10030

http://www.dish.com/info/remote-setup/

Here is a video on how to mount the unit.

http://www.youtube.com/embed/rG7y62FcvGw?rel=0&autoplay=1

You can either run the power cable with an extension through your wall component system, run it along the wall and purchase an on wall wire concealer, or you can move the power outlet from down below to up near your tv.
Your local cable company SHOULD be able to do this for you if you don't want to mess with it.
Here's the on wall concealer.
http://www.bestbuy.com/site/Wiremold+-+Flat-Screen+TV+Cord+Cover+Kit+-+White/9058743.p?id=1218013803132&skuId=9058743&st=wire%20concealer&cp=1&lp=3

1- remove the wall plate from the arm.
2- fix the front plate to the back of your television.
3- mark the position of the holes and drill
4- put wall plugs into holes.
5- secure the wall plate to the wall
6-attach the arm to the wall plate.
7-hang the screen on the arm (i recommend having someone help) and secure it in place

It should work with the LG 47". you need to find the correct bolts that fit the mounting holds on your TV. There should be a bag of bolts packaged with the Omnimount.

Several people are killed every year by having insecure wall mounted TV's fall on them.
You would be advised to screw into stud-work if possible. Otherwise use hollow wall fixing bolts (toggle type) to make sure that the screws don't pull out.

Finally figured out the correct arrangement or configuration through trial and error (and my wife's puzzle solving ability). It sure wasn't clear in the instructions, and I could not get the needed information from the website of either the manufacturer of wall mount system or TV...a little frustrating, but perseverance paid off. Given the price of the wall mount, I would think they could do a better job.

Download the instructions here.