47 panny converg

Discussion in 'Archived Threads 2001-2004' started by Rick Simpson, Oct 10, 2001.

  1. Rick Simpson

    Rick Simpson Agent

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    I've got my tv looking pretty damn good.I've done all the tweaks on Bretts site.
    When I do a 9pt converg I have alot of crosses that I have a blue hase on each side that i just can't get rid of. Is this normal?The red is completly gone.
     
  2. JohnnyG

    JohnnyG Screenwriter

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    The answer depends on how much blue haze you're seeing. Many sets will show some blue haze when scrutinizing the image and this is largely by design.
    On the PT-47's that I've calibrated, the problem is worse on the left side of the screen than on the right. Often, rotating or swapping lenses helps considerably. This could also be a focus issue - either mechanical or electronic - or both.
    I've got a pretty good system going for mechanical focus on the PT-47:
    - Remove the front grille
    - Unscrew 3 screws holding on the control panel and remove the panel
    - Remove all the screws securing the rear panel
    - feed some fine wire or fishing line or whatever through the slot in the front of the set that was behind the control panel.
    - go to the back of the set and loosen the wing nut on the lens and wrap the wire around it a few times. Move the wing nut back and forth a few times to loosen it up
    - run the wire around the lens (one end around each side)
    - from the front of the set, pull up the convergence grid and use the 3 key on the remote to select only the color gun that you're working on
    - grab the two ends of the wire and pull each side until the focus is ideal
    - go to to back, unwrap the wire and secure the wingnut (not too tight!)
    - continue with the next lens
    The electrical focus on newer sets is now secured with blobs of glue. On the last set I did, I was not able to remove the glue without undue force. Since the electrical focus looked fine to me, I didn't push my luck.
    ------------------
    John Golitsis
    Next Big Thing Electronics
    [Edited last by JohnnyG on October 11, 2001 at 02:25 PM]
     
  3. Rick Simpson

    Rick Simpson Agent

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    Your right Johnny G,it is worse on the left side
     

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