Video Asylum

• Re: Coax to Composite? - Kelly McDonald 12:40:13 02/18/02 (0)
  In Reply to: Coax to Composite? posted by joeb on January 31, 2002 at 12:30:08:

  There currently is no standard for digital video (there are a couple in the works, but they don't look anything like coax). You would likely have a digital audio input, but this will have an RCA (or toslink) connector (RCA cable is technically coax, but its not the same as standard video coax). If there is an actual coax screw terminal on the back of the pre-amp then it is most likely standard video (however I highly doubt that is the case). All the A/V recievers I've seen have composite video only(some of the high end ones will have S-VHS and the even more expensive ones will have component).

  As others have said your main options are to get a cable box with composite out (or even better S-VHS), or connect the coax to a VCR and use the coposite out of that (however then you will then have to use the tuner in the VCR to watch TV, meaning you would have to watch whatever you were recording).

  
  
  

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• Dear confused, - j_thunders 22:26:07 02/01/02 (4)
  In Reply to: Coax to Composite? posted by joeb on January 31, 2002 at 12:30:08:

  Now you have me confused. What's wrong with running the coax out of the cable converter into the TV? This is usually the preferred method, because less connections usually translates into better pictures. To run the video first to the AV pre, then into the TV is one step you don't need to take (especially if the AV pre doesn't have high-end "broadcast quality" video switching capabilities, few do).

  As far as this business: "Is there an adapter I can use, that converts analog coax video/audio into composite?" I'm stumped.

  Cable coax usually only carries a video signal, and that's all. The audio from the cable box will ordinarily be out of a left/right channel pair of standard RCA terminated audio cables run to the AV pre.

  Either that, or this is in reality a trick question and I just fell for it.
  
  

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  • Maybe you're confused... - joeb 13:56:21 02/02/02 (3)
    In Reply to: Dear confused, posted by j_thunders on February 01, 2002 at 22:26:07:

    Have you ever looked at the cable out of your wall socket? Just a single coax...so where's the sound??? on the coax!!! I don't know about yours, but my cable decoder box has a single coax out, which is connected to the TV. And miraculously, the TV has sound!!! Please don't try to make me sound like an idiot, when you don't know what you are talking about...

    As for why I would want to run the cable signal out to an AV preamp, it's so I can watch one channel while recording another, which you CANNOT do with a cable box decoder, unless you have a cable A/B switch on a splitter, which is probably degrading the picture quality more than the AV pre-amp would (currently using cheap A/B switch now...)
    
    

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    • Yeah, I am confused, - j_thunders 21:21:56 02/02/02 (0)
      In Reply to: Maybe you're confused... posted by joeb on February 02, 2002 at 13:56:21:

      but I admitted it. Still, reading the first post and the response, I still can't see how sending the signal to the A/V pre is going to help you here. So, still stumped; good luck to you.

      For signal converters, I would try radio shack.
      
      

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    • What about using a VCR? - Lasermeister 17:37:44 02/02/02 (1)
      In Reply to: Maybe you're confused... posted by joeb on February 02, 2002 at 13:56:21:

      My system has the coax cable running into a VCR, and then I use the RCA (well, actually S-Video because it's a S-VHS machine) jack to connect to my A/V preamp. I have the stereo outputs connected to my audio preamp, but I could have connected them to the A/V preamp just as easily.

      You could keep running the coax directly into the TV if you wished by utilizing a high quality splitter, switch, or distribution amplifier. I've been using a powered Radio Shack 4-way distribution amplifier in my system for over ten years and have been quite satisfied with its performance.

      I have no direct experience with cable boxes, so please accept my apologies if my advice is not germane to the situation.

      Todd
      
      

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      • VCR is the only way to go - T. Buns 11:47:58 02/04/02 (0)
        In Reply to: What about using a VCR? posted by Lasermeister on February 02, 2002 at 17:37:44:

        Unless your cable company can provide you with a box with A/V outputs, using a VCR or a Radio Frequency demodulater are the only ways to convert an RF coax signal (with sound and picture) into separate sound/picture carriers which then go in to a reciever. An RF demodulater will probably cost about $40-80 (I haven't priced them though) and a VCR with AV outputs will cost about $60.

        I don't know what a "coax digital video-in" is so I can't help there. Usually when one refers to coax digital they mean to imply an bitstream/PCM audio carrier.
        
        

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