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Possible to Splice a VGA to RCA cable?

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  • Possible to Splice a VGA to RCA cable?

    If so does anyone know the color/pin correlation for the two cables?

    Thanks, Shawn

  • #2
    Adaptors on the market..

    For a few dollars you can get an adapter already made up. Do a google on "VGA RCA adapter."

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    • #3
      Or seach for scan line converter, as a straight splice will not work

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      • #4
        Originally posted by Bob T View Post
        For a few dollars you can get an adapter already made up. Do a google on "VGA RCA adapter."
        CAUTION!

        Those adapters are usually for a specific make/model of video card and don't work for other makes/models!
        Have you looked in the FAQ yet?
        How about the Wiki?



        Under normal circumstances, a signature would go here.

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        • #5
          I already ordered one but afterwards I got an email saying "may not be delivered by Christmas," and I need it now. I for sure cant wait almost a month

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          • #6
            nope. you got one connector thats an hd15 going to one RCA. hd15 has its own seperate signals that carry the reds, blues and greens. + shielding and ground

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            • #7
              If you want to make your own VGA to RCA Phono lead then you can use the diagram below ... there's loads of info on the net how to do this though ...

              Just grab a spare VGA to VGA cable (one with a Male connector on one end) ... snip off one end leaving the Male connected to the cable ... strip back the 15 wires to about 4-5 inches ... do a continuity test to get the right pins to the right corresponding cables ... twist the RED & RED GND wires together ... do the same for the other pairs ... this will help to cut down any interference ... you will need to split the SYNC GND wire so that it splits between the HSync & VSync phono connectors ... solder the phonos to the relevant RGB & SYNC pairs ...

              This might not work for your setup if you don't have the SYNC connections on your device ... so this is for people who have ...

              As androo pointed out there is more to just the RGB connections ... they tend to need the Sync connections also to stabilize the image ...


              But don't take my word for it ... let Rob verify this ...

              Also if you wanted to make a very long length VGA cable you can use CAT5 network cable (shielded or non shielded: shielded for car would help) as the wires are twisted pairs and work very well over a 50ft length ... but that's making one from scratch ...

              cheers,
              Gem

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              • #8
                ^^^yeah this can be done with component cables.

                but the guy mentioned rca. which to me meant composite and composite is a single yellow rca video input.

                i wouldn't even begin to know how to build a cable like that and why any person would want to go that route? because i can almost guarantee you that on the opposite end of that single RCA the video quality that its going to output is going to be horrible.

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                • #9
                  Yes I was asking how to take a VGA cable output into a single RCA input. Reason being, I have a carputer and have been through numerous flipout monitors which all suck. I had an Alpine IVA-D310 prior to the carputer ($1,600 flipout 7" monitor). Ive gotten so sick of the POS LCD monitors available that Im about ready to trash the carputer (literaly throw it in the trash as violently as possible). My only chance at having a decent flipout is to go back to my Alpine flipout, however it doesnt have a VGA input. Only external inputs the brain will take is RCA's (yellow for video, red and white for sound). So I am trying to take my carputer and put its visual output into ONE RCA and into the brain of the Alpine. This way I have a fully functioning (not POS) Alpine Headunit and can switch the display over to accessory and have the computer displayed. I use the carputer for tuning and monitoring my car only, not anything that I need the computer displayed 100% of the time for. Hope that helps clarify my reasoning

                  Thank you everyone that has replied so far!!!!

                  Shawn

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                  • #10
                    Riiiiight ... sorry I got the wrong end of the stick ... as androo said ... singular RCA ... I was thinking plural ...

                    Bummer ... yes a single RCA will give crap results for data (text) info ... fine obviously for video ...

                    Does this unit have Navigation in it? ... if so you might be able to use those RGB signals and then modify it to take your VGA signals ... NAVs need RGB for clarity ...

                    If you could get hold of a Service Manual (not Users Manual) for your Alpine then we could go inside and find the location to connect directly to the RGB connections then make a break out cable that comes out the back ... LCD screens have separate video connections to the LCD modules ... somewhere along the line the RCA (yellow) connection will reform (convert) back to RGB in the head unit ... its a case of finding them ...

                    cheers,
                    Gem

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                    • #11
                      Ill see what I can find for a schematic of the head unit. I apprecaite the response!

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                      • #12
                        After reading this

                        http://www.mp3car.com/vbulletin/newb...-carputer.html

                        It sounds like my adaptor I ordered might not even work. Where do I find a low profile video card that would have an RCA output??

                        Or would this work? If not is there something else of that sort that would work?

                        http://store.mp3car.com/KWorld_V_Str..._p/com-020.htm

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                        • #13
                          Originally posted by A4ringedONE8T View Post
                          Where do I find a low profile video card that would have an RCA output??
                          Try a used ATI Radeon 7000.

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                          • #14
                            Originally posted by A4ringedONE8T View Post
                            Yes I was asking how to take a VGA cable output into a single RCA input. Reason being, I have a carputer and have been through numerous flipout monitors which all suck. I had an Alpine IVA-D310 prior to the carputer ($1,600 flipout 7" monitor). Ive gotten so sick of the POS LCD monitors available that Im about ready to trash the carputer (literaly throw it in the trash as violently as possible). My only chance at having a decent flipout is to go back to my Alpine flipout, however it doesnt have a VGA input. Only external inputs the brain will take is RCA's (yellow for video, red and white for sound). So I am trying to take my carputer and put its visual output into ONE RCA and into the brain of the Alpine. This way I have a fully functioning (not POS) Alpine Headunit and can switch the display over to accessory and have the computer displayed. I use the carputer for tuning and monitoring my car only, not anything that I need the computer displayed 100% of the time for. Hope that helps clarify my reasoning

                            Thank you everyone that has replied so far!!!!

                            Shawn
                            After doing this, instead of only throw the carputer in the trash, you are more likely to throw both: carputer and the Alpine screen in the trash. Not because it won't work, but it will be much more disappointed with the result.
                            2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
                            89 Supra Turbo P3 [email protected]/Abit BE6 II, Alpine M-BUS Car2PC.
                            Y2K Accord Dell GX150
                            RoadRunner is the best FE PERIOD
                            EmoRebellion is a SCAMMER

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                            • #15
                              Originally posted by A4ringedONE8T View Post
                              After reading this

                              http://www.mp3car.com/vbulletin/newb...-carputer.html

                              It sounds like my adaptor I ordered might not even work. Where do I find a low profile video card that would have an RCA output??

                              Or would this work? If not is there something else of that sort that would work?

                              http://store.mp3car.com/KWorld_V_Str..._p/com-020.htm
                              I just had a look in the user's manual and it shows (on page 78) the NAV unit is connected to the IVA-D310 Tuner Box connection labelled (13) right? (hard to see without zooming in) ... can you not grab a spare NAV cable and splice into that and use the (RGB) VGA connections from your PC to the NAV input? ... the connection labelled (14) in the Tuner Box is the display cable to the head unit (monitor) ... this cable must have all the right connections to achieve the clean screen output for the NAV & video inputs ...

                              User's Manual for Alpine IVA-D310

                              The Tuner Box comes with the Head Unit doesn't it? ...

                              I'm sure others have used their NAV inputs for their VGA PC connection, on other units ... I'm sure we can do this ...

                              cheers,
                              Gem

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