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Originally Posted by etronfreak
Thanks for the thoughts guys but I'm a little lost. Can you bring it down 1 or 2 levels as to what you think I might be able to do?
By the way, been to Glasgow and loved it!
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No problem mate, I'm not sure how much you know so I'll start at the beginning
There's basically two types of signal you can feed into a screen - interlaced or progressive. Interlaced means the picture is built up drawing all the even-numbered lines then going back to the top of the screen and drawing all the odd-numbered lines. Since interlacing is most applicable to CRT screens with 576 lines, that means starting in the top left corner of the screen you draw 288 lines then go back to the top left and fill in the other 288 lines. A progressive signal means that you draw each line in turn rather than having to go back to the top again so it's generally a smoother image.
You'll probably find that your DVD player is outputting a progressive signal whereas your cable box will be an interlaced signal (just guessing here!) as will a VCR, camcorder, laserdisc player. Games consoles are a mixed bag though with some supporting progressive scan and others not.
If you have any of the kit in the interlaced list above, I would guess they show the volume control on screen. If it's your DVD player or Xbox/Xbox 360 for example though that doesn't show it then it's likely because it's progressive scan.
If you try switching the output from your DVD to interlaced rather than progressive, the OSD should appear but at the risk of a poorer picture so you'd probably only want to do that to test the OSD worked and not actually use it for general viewing.
(That's simplifying it but but hopefully it helps

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In terms of a more permanent solution, I think it's simply a case that the amp doesn't support overlays on progressive scan signals. Jase's Denon amp can draw the OSD onto progressive signals but he has a Denon AVC-A1XV which is worth more than my car these days
Hope that's a bit clearer
As for Glasgow, you'll hear no complaints from me, except for the weather. It rains for most of the year which is just depressing and when it's hot, it's really hot which is just annoying - you can't win
EDIT: Just noticed that Jase has replied too ages ago while I was still tapping away! It's looking more and more like it's just a case that a progressive OSD isn't going to work out

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