Help need RGB scart to YUV component

Discussion in 'Projectors, Screens & Video Processors' started by minimivic, Aug 3, 2001.

  1. minimivic

    minimivic
    Active Member

    Joined:
    Mar 28, 2001
    Messages:
    230
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    Shaftesbury, Dorset
    Ratings:
    +16
    Hi all,

    I'm trying to get YUV component video out of an RGB scart, is there a way of stripping the sync from Video output then inserting it onto Green.

    I know it can be done on VGA from Scart.

    Any help would be appreciated.
     
  2. Gordon @ Convergent AV

    Gordon @ Convergent AV
    Distinguished Member AVForums Sponsor

    Joined:
    Jul 13, 2000
    Messages:
    14,207
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Living in Surrey, covering UK!
    Ratings:
    +3,042
    Sharky: Not sure what you mean here but if you want to convert an RGB signal to YUV then Key Digital in the US do such a device I believe. You might also want to contact Dr John Sim at<br /><a href="http://www.rgbtosvideo.com" target="_blank">www.rgbtosvideo.com</a> or .co.uk not sure which.

    He may do such a device already or may even be working on one....

    Gordon
     
  3. simoncope

    simoncope
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    I think you've got the wrong end of the stick here... a SCART connection supplying RGB cannot give YUV. YUV is one signal carrying luminance, and two signals carrying the colour difference.

    Stripping the sync from the composite video pin on the SCART and then recombining with RGB will give you a variation of RGB (eg RGBs or RGsB etc.), not component YUV. As Gordon says, you will need a convertor of some description.
     
  4. minimivic

    minimivic
    Active Member

    Joined:
    Mar 28, 2001
    Messages:
    230
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    Shaftesbury, Dorset
    Ratings:
    +16
    I understand what you are both saying.

    Its an idea I have come up with, and I was wondering if it has been done or if it was possible to convert the RGB signal from the scart to YUV.

    It appears to be hard, but someone must know if its possible or what box of tricks we will need.

    OK.... Can VGA be converted to YUV? I'l try it another way if needed.. <br /> <img src="smile.gif" border="0">
     
  5. Gordon @ Convergent AV

    Gordon @ Convergent AV
    Distinguished Member AVForums Sponsor

    Joined:
    Jul 13, 2000
    Messages:
    14,207
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Living in Surrey, covering UK!
    Ratings:
    +3,042
    Sharky: RGB can be converted to YUV. YUV is a form of analogue compression of RGB. As I said, Key Digital do such a box of tricks. Dr John Sim of RGBTOSVIDEO.COM may be working on a similar box. I'd expect Extron and Kramer do something similar for much more money.

    VGA is a term bandied about for many things it is not. VGA is a PC resolution. 600 X 480 is VGA unless I'm mistaken. VGA sockets are really High Density 15 pin sockets or HD15's. HD15 sockets can be used to transmit many types of resolutions and signals.

    If your question is "are there any devices which can convert a VGA (600 x 480 PROGRESSIVE)signal to YUV progressive then I'm not sure. I'd guess that Folsom and Snell and Wilcox may be places to look. Alternatively try Key Digital again. I think Oasis may be your best bet for answers to this technical query.

    What is it you are trying to achieve anyway?

    Gordon
     
  6. minimivic

    minimivic
    Active Member

    Joined:
    Mar 28, 2001
    Messages:
    230
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    Shaftesbury, Dorset
    Ratings:
    +16
    Gordon

     
  7. Mr.D

    Mr.D
    Well-known Member

    Joined:
    Jul 14, 2000
    Messages:
    11,167
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    133
    Ratings:
    +1,209
    I'm sure lektropacks do an RGB to component transcoder seems to recall 300quid mark.

    I seem to recall that ACE video mixer thing advertised in HCC and What TV also performs rgb to yuv conversion but I'm not 100%.
     
  8. Gordon @ Convergent AV

    Gordon @ Convergent AV
    Distinguished Member AVForums Sponsor

    Joined:
    Jul 13, 2000
    Messages:
    14,207
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Living in Surrey, covering UK!
    Ratings:
    +3,042
    MrD: Just checked the Lektropak catalogue. They do a device which converts s-video or composite to RGB OR YUV but not one that does RGB TO YUV.

    At least I can't see it....

    Gordon
     
  9. Mr.D

    Mr.D
    Well-known Member

    Joined:
    Jul 14, 2000
    Messages:
    11,167
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    133
    Ratings:
    +1,209
     
  10. Nic Rhodes

    Nic Rhodes
    Well-known Member

    Joined:
    Mar 23, 2001
    Messages:
    17,152
    Products Owned:
    0
    Products Wanted:
    1
    Trophy Points:
    133
    Location:
    Cumbria
    Ratings:
    +1,276
     
  11. museumsteve

    museumsteve
    Well-known Member

    Joined:
    Jan 28, 2001
    Messages:
    7,925
    Products Owned:
    4
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    Nth Hampshire
    Ratings:
    +1,075
    I'm after component to RGB (HD15)..any ideas..can't find one anywhere..I want to use the component out on my DVD to my projector..
     
  12. Gordon @ Convergent AV

    Gordon @ Convergent AV
    Distinguished Member AVForums Sponsor

    Joined:
    Jul 13, 2000
    Messages:
    14,207
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Living in Surrey, covering UK!
    Ratings:
    +3,042
    If your projector accepts Component in on the HD15 socket then just get a hd15 to 5 phono/bnc lead. Use the R for Pr, G for Y, B for Pb...don#t worry about the hand v cable left over. The sync is carried on Y/G.

    Hope this helps.

    Gordon
     
  13. museumsteve

    museumsteve
    Well-known Member

    Joined:
    Jan 28, 2001
    Messages:
    7,925
    Products Owned:
    4
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    Nth Hampshire
    Ratings:
    +1,075
    thanks Gordon...The manual says the HD15 takes component (it's selectable through the menu(..any recommendations on where to get them..and if they come with BNC..is there an RCA to BNC adaptor...?? I have BNC to RCA (which I used for plasma)..
     
  14. minimivic

    minimivic
    Active Member

    Joined:
    Mar 28, 2001
    Messages:
    230
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    Shaftesbury, Dorset
    Ratings:
    +16
    Museumsteve,

    Lots of Shops can get special cables made up.Try your local one.

    If you get stuck let me know.
     
  15. museumsteve

    museumsteve
    Well-known Member

    Joined:
    Jan 28, 2001
    Messages:
    7,925
    Products Owned:
    4
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    Nth Hampshire
    Ratings:
    +1,075
    just a note to thank Paul..got my cable today..Component to HD15...I'll be playing later..
     

Share This Page

Loading...
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice