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Monitor (CRT) Yoke Adjustment

Posted on 1999-11-18
Medium Priority
Last Modified: 2013-11-17
I would like to know how do you adjust the CRT Yoke on a Power Macintosh 5620/120, and if there is any software to aid in this adjustment.  
Question by:n_salvatore
  • 2
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LVL 30

Expert Comment

ID: 2217784
Yoke?...you mean the tilt and general geometry? In the monitors control panel theres a tab to set geometry.

Author Comment

ID: 2220068
The settings I am asking about are not a control panel setting for the geometry.  The settings I am asking about are made at the end of the CRT Tube, by turning the rings and adjusting the R,G,B guns on the inside of the CRT.

Accepted Solution

mazur earned 300 total points
ID: 2225989
Like all color CRT's, you can use the "purity rings" to control the beam landings. Display a solid red background and then adjust the rings for the purest color. Then check with green and blue screens as well.

Author Comment

ID: 2228114
Thanks for your help.  I would like to know how I would display a solid color.  Do I use any software or use desktop colors for the solid screens.

Expert Comment

ID: 2228890
Whatever you can use to generate a flat color accross the screen. Just make sure that you pick pure colors, e.g. red = 100  0 0 (%RGB values).

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