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How To Improve The Picture On ALIS

Discussion in 'Projectors, Screens & Video Processors' started by willberry, Aug 11, 2004.

  1. willberry

    willberry
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    I have an Hitachi 42PD5200 (no need to jump in MAW, I bought it before I had even found this forum or knew what ALIS was, it is way too late to return it). Although I am reasonably happy with the picture and seem to suffer with fewer problem than many here, things can always be improved.

    I thought about getting an IScanHD or something similar, but from what I can gather I will not be able to drive it at native resolution so I do not know if it will help much.

    The panel is connected to a pace twin and rather old sony s725d DVD, so my question is I suppose whether an IScanHD would improve the image much by way of fixing any chroma bug and generaly better image processing. If the improvement is very apparent then I would gladly purchase an IScan, crystalio, whatever - but it would have to be pretty obvious since there are plenty of other things I can spend a grand on ;)
     
  2. laser

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    I'm in a similar quandry as you and have the 42PMA400E. Bought mine about 15 months ago before HDMI had really taken off but hey, that's new technology for you. However I'm very happy with the plasma and have had much enjoyment from it.
     
  3. davidscott

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    I would recommend Crystalio which has preset resolution 1024x1024 for Hitachi ALIS. It worked perfectly. :thumbsup:
     
  4. hornydragon

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    Perhaps first step should be £13 on a copy of DVE allowing you to brightness/contrast etc. Before you spend £1000+ on a scaler!
     
  5. willberry

    willberry
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    Who said we did not have such a DVD already? I at least have DVE PAL, DVE NTSC and AVIA NTSC ;)

    The tools only help you make the best of what you have, but if a scaler / video processor offers a significant improvement over the plasma's own processing then they will offer a visual improvement even if you do have DVE - the problem is I cannot get to somewhere to demo one so I was trying here to see if anyone had manged to have a positive effect with one used along with an ALIS panel. Looking at the accepted signals for my hitachi 5200 I do not see one which is at native resolution :thumbsdow
     
  6. hornydragon

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    see http://www.convergent-av.co.uk/lu_scaler.html this looks like it could also do the job, i think you may find it difficult to get a demo as Hitachi Alsi screens are Budget displays and not usually used with £1000 scalers, suggest you try all your local or not so local specialist dealers!
     
  7. willberry

    willberry
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    I wish I had discovered this forum and some of the mentioned on-line retailers before getting my plasma - three grand in my local comet :eek: hence I did not really consider it a budget screen at the time. Still you live and learn...
     
  8. willberry

    willberry
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    Are you saying that you output and the panel accepted a 1024x1024 signal? Looking in my manual for the supposedly acceptable input signals I could not find a 1024x1024 one, there were various VESA and other resolutions but not a native one. If you managed it, which input did you use (component/scart/vga/dvi) and did you need to set a particular signal frequency?

    Cheers for any info.
     
  9. Joe Fernand

    Joe Fernand
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    Willberry

    The Hitachi ALIS panel is a bit of a conundrum - if you ask someone at Hitachi what its 'Native Resolution' is you may not get a simple ****x**** answer.

    Your Panel is an Interlaced display which has to be taken into account when comparing its 'Resolution' against the majority of Displays that are Progressive devices - in an ideal world your display would be billed as 1024x512; but that isn't going to go down a storm with Hitachi's marketing department as more pixels is better than less; AREN'T THEY!!!

    You have to keep in mind that no matter what Processor you put between your Sources and your Display the ALIS technology is always going to have a part to play in what you are viewing - (Side Note - can folk recommending the Crystalio VPS-2300 please keep in mind its a £2.3K (UK SRP) solution not a £1k solution (good though it undoubtedly is!).

    I'd suggest either a Lumagen VisionDVI (SD + HD Video Processor) or the DVDO iScanHD (SD Video Processor + Digital Audio Delay) PLUS an ISF Calibration is the most cost effective way to ensure your getting the best out of your system.

    It may be that combining an ISF Calibration with an In Home 'Take it or Leave it' demo of a Video processor is the best way of 1. Ensuring your display is working at its best with your current kit and 2. Answering your questions about the Value Add of an external processor.

    Best regards

    Joe
     
  10. oferlaor

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    You basically have two native resolutions with ALIS displays: 1024x1024 interlaced or 1024x512 progressive.

    Which one performs better? Good question. I think they both perform subpar on ALIS, but I personally like progressive better. Any scaler capable of doing 512p should work fine for you.
     
  11. rloughran1

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    Hi,

    I also have an ALis panel and tryin hard to get a better picture. I've never been happy with the perfomance my DVD player offered (Denon770SD via component) so I'm now investigating the HTPC route.
    Can I ask if anyone has any idea what the ideal powerstrip settings would be for the the hitachi panel ?. As I'm new to whole PC thing the best result I've had so far is with the PC set to 1024x768 (vga connection). Panning and movement is much improved using the PC but the image is still very noisy.
    Joe you say that the ALis is an interlaced display....so does that mean I'm better sticking with the VGA connection rather than use the DVI one ?
    Any light anyone can shed on what my PC should be set to for resolution and what I can do to clean up my noisy image is much appreciated !!!!
     
  12. hornydragon

    hornydragon
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