PVM9041QM problem with RGB. S-Vid & Composite are okay

Forum Pro Video & Broadcast
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Looks exactly like this, sans the 4:3/16:9 switch.

1600Ă—1200 385 KB

  • Roland V4 via S-Video or Composite is fine.

    image
    image3024Ă—3024 2.95 MB

  • V4 out to Kramer VP-727 switcher/scaler works well to DVI & VGA on Benq monitor

  • Kramer VP-727 via RGB to the 9041QM looks like this (yes, this is V4 Preview output but the result is the same upon the Main output as well.

    image
    image3024Ă—3024 2.4 MB

  • 9041QM switched to RGB input and RGB.

  • Sync set to Internal. External produces a black screen.

  • Similar result (but better color) when switched to RGB input and YPbPr, (or was it the other way around? Either way, it doesn’t work.)

  • Cables eliminated as source of error by swapping out a known good one, one-at-a-time.

  • Every resolution on scaler has been tried.

Link to Kramer VP-727 manual

Link to Sony PVM 9041QM Manual

I had to stop futzing with it as I have an engagement to go to. I figured I’d implore y’all for an assist.

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Well I hope I’m wrong but I think I found the problem. It looks like the VP-727 will only output a progressive signal. And I’d be surprised if the Sony accepted progressive.

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3

that’ll do it - you need a converter that outputs interlaced video

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Thanks to you both. It’s pretty obvious, once pointed out, that we’re seeing the two interlaced frames. :face_with_diagonal_mouth: I was blind to the readily apparent as the other two outputs (of the scaler) were displaying correctly (DVI & VGA).
I’m very much surprised that there is only one interlaced setting on the output of the scaler.

I’ll check for a firmware update and also see if an appropriate interlaced setting can be set up as one of the three craftable “user” output options.

Thanks again for the help.

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5

Kramer support got back to me very quickly (under 30 mins) and sent me a link to an update that might make things work. I’ll have to install an emulator or grab a PC for this and then see how it goes. Will report back.

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good luck! :hand_with_index_finger_and_thumb_crossed:
I’ve got a hdmi → component converter that does this and another that just won’t play into my visual cortex at all - but thankfully just 20 quid each or so - the first one can be used as an effect - the second is now being used to send chromecast to an old tv…

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