Things You'll Need
Instructions
TV Setup
Choose the resolution for the bigger TV screen. If the display is standard definition, you'll need to use 480p resolution. If the screen is high definition, you should use 720i, 720p, 1080i or 1080p. Refer to the display's manual for your screen's capabilities.
Connect the correct cables to the TV and the PS3. You should do this while the console is turned off. For standard resolution, you can use RCA (composite) or S-video. For high-resolution, use component or HDMI.
Turn on the display and select the input for the PS3 system. You should select the input type that corresponds to the label for the connectors that you plugged the PS3 into.
PS3 Setup
Navigate to the "Settings" option on the XMB menu, then select "Display Settings."
Select "Video Output Settings."
Highlight the type of cable you used to connect to the display. Press the right directional key to proceed.
Check all compatible resolutions based on your display's manual. Press the right directional key to proceed.
Confirm your selections when the system prompts you. The display resolution will change now.
Confirm that the resolution is working properly for your screen.
Select the correct aspect ratio for your system, if the PS3 prompts you. Select whichever option your screen is; typically standard-definition screens are 4:3 and high-definition screens are 16:9.