Question

coax to av

Asked by: rtod2

My lovely wife broke the Coax input on our TV.  Since we hadn't planned on purchasing a new one just yet, the thought occurred to us that perhaps the three (3) A/V inputs would work just fine.  The trick now is finding that conversion since most people are likely backward from that (A/V to Coax vs Coax to A/V).  I'm trying to take the Cable TV signal coming in on the coaxial cable and convert it to A/V inputs.  Can this be done?  If so, does anyone have a link to a fine product that would do this for us?

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Asked On
2009-08-03 at 20:24:47ID24623475
Tags

Home Theater Wiring

,

A/V Receivers

Topics

Home Theater Systems

,

Televisions

Participating Experts
4
Points
500
Comments
13

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Answers

 

by: uucknaaaPosted on 2009-08-03 at 20:46:51ID: 25010384

Hi

Your coax input coming into your house needs to terminate on a coaxial connector.  Either in a cable box or a cable input on your tv.  Do you have a cable box?  If so, then you can use AV cables from the box to your TV.

Let me know what you have.

 

by: rtod2Posted on 2009-08-03 at 20:51:09ID: 25010400

It terminates.  I need to turn the coax into av.  Additional info will confuse the issue.  It is terminated already.  Thank you very much for your help.

 

by: CABISPosted on 2009-08-04 at 05:47:35ID: 25013037

There is not a cable adapter that will convert the RF signal from your coax to RCA-type AV inputs for your tv. You will need some sort of set-top box or tv tuner or other type of RF DEmodulator. The cheapest way to do this is to use an old VCR as a pass-thru from your coax to the tv. There are stand-alone demodulators available (google for options), but they are generally much more expensive than the vcr.

 

by: rtod2Posted on 2009-08-04 at 06:26:39ID: 25013444

There is a Terk Antenna that has a coax end on it.  If we want to connect it to the A/V inputs on the back of the TV, we would still need the RF DEmodulator.  Is that correct?

 

by: CABISPosted on 2009-08-04 at 06:58:16ID: 25013848

Right, since the audio and video are combined on one wire on the coax, the demodulator will "split" them into separate signals for the red, white and yellow RCA wires.

 

by: CallandorPosted on 2009-08-04 at 11:21:57ID: 25016580

You will need more than a simple demodulator (RF modulator looks like this, which is the opposite http://hometheater.about.com/od/hometheaterdoityourself/ig/Home-Theater-Connection-Photo-/RF-Modulator.htm) - the broken coax input connects to your TV tuner; whereas the red, white, and yellow inputs do not. When you use the AV inputs, you effectively are inputing a single source, whereas the the tuner zeroes in on one of many sources (channels).

You will need to connect the coax to something that has a tuner, like a vcr, and from the vcr connect the red, white and yellow cables to your TV. You will then use the vcr to select channels. A cable box will also do this.

 

by: MeretePosted on 2009-08-14 at 05:18:30ID: 25097159

No it can't be done. You can't change the input for cable TV it has to go through the cable set top box, this is the decrypter if you like to send the digital signal to TV
go see your cable people and get another one.
 buy a new cable?
here in australia I bought another of those cables with a splitter so I could have cable TV in the bedroom TV.
 It only gives one channel because it has to go through the set top box and the remote doesnt work through walls.  Just making a point as I tried this idea too.
Dick Smith here , any good TV maintinence and  Repair Store stock these cables
http://search.dse.com.au/electronics/Tv%20Coaxial%20Cable

 

by: uucknaaaPosted on 2009-08-14 at 08:25:47ID: 25099040

Hi

The solution you choose here is exactly what I suggested in the very first post of this discussion.  

Could you please review?

 

by: rtod2Posted on 2009-08-14 at 08:32:21ID: 25099137

slightly different sorry

 

by: uucknaaaPosted on 2009-08-17 at 10:54:47ID: 25116672

Hi

I'd say that everyone that responded to this question answered it.  So spllit the points between Merete http:#25097159, Callandor http:#25016580, CABIS http:#25013037, and uucknaaa http:#25010384.

A COAX connection, whether it is from a cable service, satellite, or over the air antenna, needs to terminate in some kind of device to demodulate the signal.  This even becomes more important with the advent of the new digital HDTV network.  Usually, whatever device is used to terminate the signal, a few mentioned be specifically are the cable box and a cable ready VCR will provide the video and 2 audio connectors needed in this application.

Thanks for your review.

 

by: rtod2Posted on 2009-08-17 at 10:56:01ID: 25116684

feel free

20120131-EE-VQP-002

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