Adjusting Grayscale to achieve D6500

Discussion in 'Archived Threads 2001-2004' started by Sankar, Feb 9, 2002.

  1. Sankar

    Sankar Second Unit

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    I have posted this on the Advanced section also. I'm posting it here also in case it gets missed there.
    The link on the advanced is:
    Advanced section Post
    ------------------------------------------------
    I have a Toshiba 65" TW65H80.
    Having messed up my screen trim pots the other day, I realize that it is probably time for me to set adjust my grayscale tracking again using a colorimeter.
    I could not find detailed instructions anywhere around .. can someone point me in the right direction?
    Basically I guess I'll need to know how to go about adjusting the trimpots, RCUT, RDRV etc parameters.
    Thanks !
     
  2. Michael Reuben

    Michael Reuben Studio Mogul

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    Moving this to Display Devices.
     
  3. Sankar

    Sankar Second Unit

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    Sorry for the dual post Michael!(didn't know how else to get the visibility from both sides, and was not sure about how its viewed on the forum, so I decided to declare it and see)

    thanks for relocating this appropriately!
     
  4. JohnnyG

    JohnnyG Screenwriter

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    * remove the screen

    * select an input with nothing connected (black screen).

    * look into the green lens and adjust the green screen control so that any trace of raster of the face of the CRT just disapears.

    * replace the screen

    * set all CUTs and DRVs to 80

    * put up a 30 IRE window pattern and get your colorimeter going

    * adjust the red and blue screen controls to achieve D65K.

    That should do it for the screen controls. Now do a normal greyscale adjust.
     
  5. Sankar

    Sankar Second Unit

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    Thanks John!

    My question was on what the interactions were betw the Cuts (RCUT, etc), Drive (RDRV, etc) and trimpots. I'm assuming that these three will need to be adjusted to get the grayscale to be near D6500 from IRE 30 through IRE 100 ?

    (i.e. what the process is to do the "normal" grayscale adjustment)
     

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