TVs & DVD Players : How to Hook Up a DVD Player to a TV Having Only One RF or Cable Input
31 Mar A GE RF modulator allows you to connect a video device, such as a DVD player or gaming system, that only uses RCA connections to a TV that only has a RF ( also known as coaxial) connection. On TVs with RCA jacks, view the video from the video device using one of the TVs "Line" inputs (for instance. 31 Mar Decades ago, when television sets typically connected with a coaxial cable for satellite or TV service, and possibly a VCR as well, a simple coaxial jack was the only necessary connection point. With an RF modulator, older TV sets can still be used with modern AV components. Cable Plug. credit: Ryan. 18 Oct Question: "I need help hooking up my TV to digital cable, DVD and VCR. I have a RF modulator, but no instructions. My TV is an older set with one cable hook up - the modulator has room for 4 hookups. Please, any help would be greatly appreciated.".
These TV sets have only one way to get a signal in and you can only use a coaxial cable, not RCA cables.
You must use another device which converts the RCA style cable connections into a coaxial type connection and modulates the signals to channel 3 or 4 on the VHF tuner in the older TV set. This is what the RF modulator does. It converts the RCA type connection yellow video and white and red audio to a coaxial cable connection and outputs to channel 3 or 4 so the older TV can link in to the video and audio.
Connect a Digital Cable Box, VCR, and DVD Player to a TV
Then there are video switchers with a RF modulator. These devices have the capability to switch between multiple input components and output to channel 3 or 4 via the modulator. Then there are switch boxes without an RF modulator.
Be careful to get the correct kind of box for your needs. Selector buttons on the front allow you to select which component to use.
How to Connect an RF Modulator to a TV
An additional RCA input on the front panel allows a camcorder hookup so you can play videos on your older TV set. Steps to hook up box: Usually white and red RCA cables. Usually yellow RCA cable.
For manually operated boxes, select the button matching the input of the component you want to use. The signal is sent to the TV. Some boxes automatically select the "active" component input.
You do not need to have a coaxial cable connected to the Modulator's RF input jack if you are not using a TV antenna or other input. It converts the RCA type connection yellow video and white and red audio to a coaxial cable connection and outputs to channel 3 or 4 so the older TV can tune in to the video and audio. Connect this RF connection to the RF modulator's input coaxial jack. People don't use them because they think that they can't use today's technology -- including VCRs, DVDsMP3 players, camcorders and gaming systems -- on the old set. Be careful to get the correct kind of box for your needs.
The one powered on. Select channel 3 or 4 on the TV.
RF Modulator Video
Connect this RF connection to the RF modulator's input coaxial jack. Select either the channel 3 or 4 output on the back of the RF modulator.
The modulator converts the picture and sound coming from your DVD or gaming system and displays it on the old TV screen [source: On television, how does closed captioning work? Then there are video switchers with a RF modulator.
The function of an RF modulator is simple. There are many RF modulators available, but all function in a similar fashion. Setting up an RF modulator is fairly straightforward: A camcorder or video game or satellite receiver should work. Basic standard RF Modulator hookup diagram: You do not need to have a coaxial cable connected to the Modulator's RF input jack if you are not using a TV antenna or other input.