trhaynes
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Sep 4, 2006, 9:37 PM
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Norcent PT-4233 horizontal image discontinuity
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This is going to be a real pain to describe, so please bear with me!
I have a Norcent PT-4233, which we bought about 5 months ago. This problem has existed since we bought it, but we are just starting to get bugged enough by it to actually investigate a fix.
This problem does NOT exist on the HD component inputs, but DOES exist on the S-Video and composite inputs (haven't tried DSub or coax).
When there are large regions of colour moving around the display (for example, panning across a restaurant with someon's head prominent in the image, or a car sliding across the display during a car chase) a horizontal resolution discontinuity shows up. It looks like a horizontal line that is repeating the line below it instead of being the in-between line between the below line and the above line.
This horizontal discontinuity slowly crawls up the display, but never lasts for very long. It is there for perhaps 2-3 seconds, then goes away. And it is not repeatable. On our DVR, if I rewind and replay a scene that had the line, often the line repetition does not happen again.
However, this does not happen on our HD component input. We have a DVD recorder, and it plays DVDs fine as well as playing fine anything that we play from our DVR through its S-video inputs. Note that the same problematic scene played from the DVR straight to the tv via S-video, and not through the DVD recorder, DOES show the problem. This is true whether the DVD recorder is set to output interlaced or progressive scan.
I would "live" with the problem and just use the DVD recorder to play all of our video sources, but I'd like to try and fix the tv problem if possible... so please do not suggest that we just use the DVD recorder and live with it!
Everything is plugged into the same 3600 joule power-conditioning power bar. Cables are a bit of a mixed bag, but nothing atrocious. No Monster stuff... mostly from Wal-mart or cables bundled with other components.
So, does anybody have any suggestions? This thing is driving me nutso!
Thanks very much,
Tim
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