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Amstrad SkySD box - banding on RGB scart

  • 22-01-2008 11:24am
    #1
    butts
    Registered Users, Registered Users 2 Posts: 509 ✭✭✭


    I’ve just got a new Samsung monitor/TV. I hooked up the Amstrad Sky box (not plus) via rgb scart and found that I had vertical banding (moving up and down the screen). If I select PAL/composite on the Amstrad the banding goes away. Also I’ve never been able to get my Samsung DVR to record RGB from the rgb scart on this same Sky box, only composite. From what I had read on avforums I use to think this was the Samsung recorders fault, but this new problem with the monitor got me suspicious, so I got the Pace Sky+ box from downstairs and using the same cables and the exact same cable arrangement, everything worked perfectly on both the Samsung monitor and recorder ie proper rgb. So it seems fairly obvious that there is something wrong with the RGB output on the Amstrad. However the same Amstrad box works fine using RGB with my Dell 26” TV. So my questions are:

    1) Have any of the Sky installers come across this problem before with the Amstrad boxes?
    2) What is it that the Amstrad is doing, that the Pace is not?
    3) Is there any chance of getting a free replacement from Sky, given that the same amstrad box works fine with my Dell TV and would I have to sign up for another 12 months?
    4) Is there anything that could be done to a scart cable in terms of removing some of the pins (I’m clutching at straws with this idea) or what about a scart with ferrites like this from Kenable:

    http://www.kenable.co.uk/product_info.php/products_id/1036?osCsid=8c5fa032b3dfe84ed92b5ff129ec8802

    Sorry about the length of the thread and thanks in advance for your help.

    PS Used pq of menu's on the sky box and the samsung recorder to confirm that monitor was getting composite or rgb. Also tried a few different scart cables.

    Edit: Forgot to state the following: Amstrad box ver no: 550.012 with OS ver no: 1.2S4FH


Comments

  • #2
    watty
    Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Try separately screened SCART (usually twice as fat). The skinny ones have bad crosstalk. It could be the tuner out signal of TV. Select an empty channel on TV before AV to see is it less bad.


  • #3
    butts
    Registered Users, Registered Users 2 Posts: 509 ✭✭✭butts


    Thanks for the suggestions Watty. Further reading on avforums reveals that this Amstrad model (550) as well as a lot of the Amstrad Sky+ boxes have created banding on certain TVs due to issues with the power supply used by Amstrad. People solved the problem by insisting that Sky replace the Amstrad with the Pace model - lots of threads on avforums about doing exactly this. This makes sense given that our Sky+ Pace box worked perfectly with the Samsung monitor and Samsung DVR (using the same scarts that were connected to Amstrad and plugged into the same socket). As I have had the Amstrad for over 18 months, I can't see Sky replacing it for free so I might just try to source something second hand.


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