Why is there a scrambled screen with audio?

SOURCE: unhooked ps3 from an hd tv and plugged it into an sd tv and it shows no picture.

you the man! that helped ssoooooooooooooooooo much!

SOURCE: Source list for Samsung LCD TV when hooking up PS3

when you switch the ps3 on if you hold down the power button for more than 4 seconds it runs the display setup. and sets the ps3 to run in the best possible option. hope this helps

SOURCE: PS3 not working through HDMI cable

connect PS3 to TV select HDMI channel on TV press AND HOLD power button on PS3 until screen resolution selection page appears.
PS3 should now work.
had this problem, this solved it.
typical repairman looking for work :)

SOURCE: My PS3 recognizes the HDMI input, but when I attempt to change the settings, it won't work

welcome to fixya

you have to set it up on the ps3 for the cable

i had the same problem on the ps3 in settings there is hdmi cable set up make sure there set to hdmi and not to av wire

SOURCE: My PS3 hdmi cable does not work

First off, if you want to use the hdmi remove the supplied composite cable from the back of the ps3.
You don't need both plugged in at the same time, and I'm not sure with the ps3 but some video devices will not enable both at once.

Have your tv selected for whatever hdmi input you have it plugged into. They should be labeled where you plug them in.

With the unit in standby, switch off and red light in front, hold the power button by the disc tray for 3-5 second. You will hear it beep, after the initial turn on beep, then you should see a display set up screen.

If you switch back to the composite, you will have to do this over again.