i had my ps3 plugged into my visio via an hd cable, but now i cant use it in my visio. i have my av cables for it, but the output of the ps3 is still hd. how do i change it from the hd, to the audio and video cables without having it plugged into hd???

Check in your audio visual under settings, you should be able to change it their. If not, just turn your PS3 completly off (main power in the back) then re-turn it back on, it should auto read that the HD cable isn't hooked up and go from their.