How to Hook Up a MacBook to the Television

Connect the mini-DVI cable to the mini-DVI port on your MacBook.
Plug the S-video cable from the port on the television to the mini-DVI adapter in your MacBook.
Connect the headphone cable from the headphone port on the MacBook to the headphone port on the television.
Turn on your TV and select the S-Video input.
Turn on your MacBook.
Open System Preferences and click on 'Displays.'
Click 'Detect Displays.'
Click 'Mirror Displays.' Your laptop screen will now appear on both the laptop and television.
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How to Hook a MacBook to a TV (3 Steps)

Plug the Mini-DVI plug of the Apple Mini-DVI to Video adapter into the Mini-DVI port of the MacBook. Plug the S-video cable into the S-video port of the Apple Mini-DVI to Video adapter and then insert the other end of the S-video cable into the S-video port of the TV.
Plug the 3.5mm plug of the Mini-plug to RCA cable into the 'Audio Out' headphone port of the MacBook. Then plug the red and white RCA audio cables of the Mini-plug to RCA cable into the red and white ports of the TV. This lets the sound of the MacBook play from the TV.
Hold down both the 'Command' and 'F2' buttons to have your MacBook detect the TV. Adjust the image settings on the TV by going to the 'Display Panel' of the 'System Preferences,' just as you would when configuring the image settings on your MacBook.
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How to Connect an Optoma Projector to a Laptop

Turn off your laptop computer, if it is on.
Plug one end of a VGA cable into the “VGA” port on the back of the Optoma projector. The VGA cable is included with the Optoma projector.
Plug the other end of the VGA cable into the “VGA” port on the side or back of your laptop. If using a Mac, plug the other end of the VGA cable into the “VGA” port on the side of a DVI to VGA adapter. Plug a DVI cable into the “DVI” port on the other side of the DVI to VGA adapter. Plug the other end of the DVI cable into the “DVI” port on the back or side of your Mac laptop.
Plug one end of a 1/8-inch audio cable into the “Audio” port on the back of the Optoma projector.
Plug the other end of the 1/8-inch audio cable into the “Audio” or “Headphone” port on the back or side of your laptop.
Turn on the Optoma projector by pressing the “Power” button on the projector. The projector will take about a minute to start up.
Turn on your laptop. Your computer may auto-detect the projector. You will see your laptop's display projected through the Optoma projector. If you don't see your laptop's display, press the function key on your laptop's keyboard that activates the VGA port on your laptop. Consult with your laptop's manual for more information.
Use the “Audio” buttons on the Optoma projector to adjust the audio transmitted from your laptop.
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