Vidikron RP46? (cube CRT)

Discussion in 'Projectors, Screens & Video Processors' started by tronix, Oct 23, 2001.

  1. tronix

    tronix
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    Hi All,

    I am a video enthusiast and I have recently purchased a projector from a
    company called Lastron Technical Services (LTS) to round off my home
    theatre. I am led to believe that it is a RP46 model. It was originally
    intended for use as a cube projector in a video wall of a shopping mall here
    in Cape Town, South Africa. The mall is being refitted and the video wall
    is no longer in service. The unit which I have purchased was a standby unit
    that was hardly used (gave me some confidence to purchase the product...).

    The sales person at LTS has furnished me with some pages (12 - 20) from a
    user manual (part # 6631 0001). These pages describe the procedures
    required for converging the RGB tubes. However, these instructions are
    quite generic and from p20 (diagrams of rear panels of Models TGS XP, 550
    and 301 and VPF40SE) I found it hard to make sense of the instructions.

    I am reasonably technically minded and would like to obtain the technical
    specifications for this model and if possible an installation manual that
    specifically deals with my model. I have hunted the internet extensively
    for a week now without any success other than feeling proud of my unit (as
    the general consensus seems to be that Vidikron Products are of a very high
    standard). I could describe my unit a little more in detail, as follows:

    Approx. 60cm (24 inches) wide x 60cm deep x 25cm (10 inches) high
    black (almost) square chassis with flip over panel for PC boards - hinged
    top back
    RGB lenses with single focus adjustment.
    AC input receptors and on/off switch
    back panel with "S-VHS" (S-Video), composite BNC and 9pin RGB D-connector
    Small PC board with control pots for Brightness, Contrast V-Hold etc.
    Big PC board with convergence pots (with symbols) for red green and blue
    settings
    4 dip switches for 1) Red 2) Green 3) Blue 4) test
    No keystone correction pot
    No audio connectors (not important)

    Could some kind soul please advise me as to the following:
    1) What is the exact name and or model number for my unit?
    2) Where may I find information specific to the unit i.e. Installation
    Manual, Specifications, Diagrams etc.

    Pieter
     
  2. Roland @ B4

    Roland @ B4
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    Peiter
    To the best of my knowledge all video wall engines were 'on axis' (ie had to be centre of screen'. They were also rear projection. they did not use a mirror so the projection depth is quite high.

    I doubt it will have any ability to reverse the scans. So you will not be able to use it for front projection screen.

    The screen size will be small as the single focus lenses were designed for the 42" ish diagonal image.

    I would imagine that it is video only and would not accept componenet or progressive scan.

    Vidicron never actually made projectors themselves but prefer (like Runco) to specify and get others to build to their requirements.

    I would send the a mail and ask if they can help [email protected]
    Vidikron current range

    Goog luck sorry I can't help more.
     
  3. tronix

    tronix
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    Hi Roland,

    Thank you for your reply - much appreciated!

    Yes, you are correct about it being 'on axis'. And YES, It does have a 1:1 throw ratio. However it IS capable of reversing the scans. The sales person sold it with ceiling mount setup. I have tested it and it works fine. The image maxes out at around 2m[80"] horizontal when focus becomes a problem. I was recommended to run at 1.8m[70"] horizontal.

    I recon it IS a 16khz only - no fancies, just Composite and S-Video. I realised it at time of purchase as I only need it for TV/DVD. However, the tubes are virtually "brand new" (got a full year warranty) and I paid roughly US$1100 for it. I noticed that the unit sports Hitachi Tubes with HUGE heatsinks. Hope that means the heat issues are eliminated...

    I sent an Email to Vidikron Sales on 10/23/01 but have had no reply as yet. If you are correct about them spec ordering, I bet they're also "stumped".

    I'm waiting for the theater room to be completed (+-2 weeks) so I can set it up finally.

    Thanks again & I LUV THIS FORUM...

    Pieter
     
  4. Roland @ B4

    Roland @ B4
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    Just a thought but if you crush the vertical height you may be able to shift the image down enough on the raster to get the projector usable. for ceiling mount.
     
  5. tronix

    tronix
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    Thanx for the thought. Aparently one can project at up to 20deg (17deg recommended) and use keystone correction... The KC must be on one of the PC boards inside as I can't seem to find it on the control panel.

    Pieter
     
  6. Roland @ B4

    Roland @ B4
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    Between 10 and 11 degrees is what you want to get the projector level with the top of the screen.

    you will also need to get spacers behind the bottom of the lens.
    ie the bit furthest from the ceiling to bring the top/bottom focus in.
     

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