Below are the simple steps to connect a data projector lacking a coaxial input to your Cable using a coaxial cable. The process is straightforward with various methods available. Here, we'll outline the steps using a digital cable box, TV, or a VCR/DVD combo.
Steps

Collect all necessary materials. Use an additional TV, cable box, or VCR/DVD combo as your channel selector. Ensure you have enough digital input cables (Red, White, Yellow tipped cables) to connect your channel turner to the projector for device placement.

Position your projector where desired. Select the turner device. For a TV, connect the input cables to the 'out' video cable slots on the back of the TV (Red, White, Yellow), then connect the other end to the video inputs on the data projector. For a digital cable box, simply connect the input cables from the video 'out' slots on the box to the input video 'in' slots on the projector. If using a VCR/DVD combo, follow the same process as for the TV.

Link your coaxial cable to your tuning device. For your TV, plug the coaxial cable as you would for regular cable. The digital cable box and VCR/DVD combo have designated ports for the coaxial cable. Once connected, you can tune to different channels using the cable box, TV, or VCR/DVD combo. Use the menu on your device to search for channels.

Connect an audio source. Most affordable projectors lack high-quality sound. If you have an external sound system, like surround sound, unplug the RED and WHITE cables from the projector (NOT FROM YOUR TUNING DEVICE) and plug them into the corresponding audio 'in' slots on your sound system. For surround sound, turn it on, select the audio channel, and enjoy the sound through your speakers.
Essentials
- A projector
- A secondary TV
- A digital cable box or VCR/DVD combo
Advice
- If you're not satisfied with the image quality or notice any keystone distortion (appearing trapezoidal), adjust the settings on your projector rather than the cables or tuning device.
- The optimal audio experience is achieved with a surround sound system.
- Ensure that the cables connecting to your projector are positioned safely to avoid accidents. Protect your valuable projector from damage, especially considering its expensive bulbs.
Cautions
- Handle the projector with care to avoid damage. Secure it firmly if mounted or place it evenly on a stable surface.