No picture or sound on ordinary TV after hooking up with HD TV

On the back of the cinavision you have two groups of sockets. The yellow socket under Video out is picture. Red and white is sound. Connect them to the TV's yellow red white sockets marked Video In 1. This connection will give you picture and sound from either the VCR or the DVD deck.

There's a better picture quality available for DVDs only from the Component video out sockets (green red blue). Next to them is another set of audio sockets (red white). Connect all five sockets to the TV's input number 2. The colours match up. The picture from Component will be clearer and sharper.

On your Sharp TV remote, select Video 1 to watch VCR, and Video 2 to watch DVDs.

the video format from your medium doesn't support the tv's max resolution

What are the specs on your emerson, does it support 1080p? Make sure you have the right settings on your ps3. If your emerson supports 720p and 1080i then it will not give you a 1080p picture and you might run into issues.

Projector power goes of after first 5 min of use. Why is this happening on a new projector?

Hd tv only has 720p picture ability
bluray xbox playstation 3 needs a hdmi cable connected to enable 1080p

HDMI to DVI adaptors do not always support audio.You have to run seperate audio into the TV.

you need an optical lead for the sound and hdmi for the picture

turn the PS3 off. hold the power button for at least 5 seconds or until you hear another beep.
This should reset all your ps3's settings.  If you have an HDMI connection, wait for a couple of seconds so that the PS3 recognizes and negotiates the right video output for your TV.

tell to not worry bout it lol!!!

get a component cable