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Old 25-06-2006, 3:57 PM   #1 (permalink)
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iScan HD - black horitzontal lines

Am having a new (I think) issue with my HD which I've had for about amonth. In the past two weeks on SD material like the footie, upscaled from 576i to 720p, I've noticed in crowd scenes for example that often durigng quick pans, large sections of the screen will seem to be made up of thin black horizontal lines. Doesn't affect DVDs or games consoles, just broadcast material,and even then only on certain scenes like I described above. Am running it via VGA to a Z4.Any idea? Am fairly certain this effect did not occur when I was feeding straight to the PJ.

Have checked the HD test patterns for 1:1 mapping, on the horizontal and vertical line tests it looks OK to me, cannot see any obvious corruption, but then hard to know what I'm looking for.
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Old 25-06-2006, 4:01 PM   #2 (permalink)
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Do they look like broken dots making up the lines? If so I had my first HD+ replaced becuase it had this fault, although they were vertical lines not horizontal.

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Old 25-06-2006, 7:19 PM   #3 (permalink)
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I don't know whether it's the same effect - but I've noticed a lot of "combing effects" which show up as horizontal lines in movement in the way you describe. I feed an ALIS panel with 1080i upscaled from a Sky SD source using an HD+. The film mode settings (off /bias or auto) have no effect on this. Can any of our experts help?
 
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Old 26-06-2006, 8:58 AM   #4 (permalink)
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Quote:
Originally Posted by DaveRichardson
I don't know whether it's the same effect - but I've noticed a lot of "combing effects" which show up as horizontal lines in movement in the way you describe. I feed an ALIS panel with 1080i upscaled from a Sky SD source using an HD+. The film mode settings (off /bias or auto) have no effect on this. Can any of our experts help?
That does sound like a similar problem. It's very inconsistant though - I can't pin it down to happening at precisely any particular time.
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Old 28-06-2006, 11:59 AM   #5 (permalink)
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uuummm...interesting, I have a HD+ running a Sim2 30H sourced via an Arcam DV89 DVD and SKY+ with a Denon AVC A1XV AV amp. I have noticed that I have scrolling horizontal lines on the whole of the screen across both DVD and SKY+ sources. It is particularly noticeable when things like football pan away from the pitch for example.

I have not changed any thing and I am sure this problem was not present a few weeks ago.

Any thoughts much appreciated

DLAU.
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