Calibrating and Adjusting
To adjust focus, landing, and convergence
Landing Adjustment
1Turn the front panel BRIGHTNESS control fully clockwise.
2Degauss the CRT by momentarily pressing the DEGAUSS switch located on the instrument rear panel.
In some cases, the user’s environment or shipping environment may have caused high levels of magnetization in the CRT. In this case, to completely degauss the CRT you may need to use a conventional
3Set the purity magnet tabs to the mechanical center. Refer to the next figure.
4Display a green raster test pattern on the display.
From the Color Display Test menu, select the green raster.
In the next steps, while moving the deflection yoke forward and rearward, rotate the yoke as necessary to keep the edges of the raster parallel to the sides of the display.
6Move the deflection yoke rearward until the left edge of the raster turns red and the right side of the raster turns blue.
Red |
Green |
Blue |
7Adjust the purity magnets until green is in the center of the raster with red and blue bands evenly distributed on the sides.
