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Troubleshooting Symptom Charts/Geometry
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Geometry
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Raster is not centered 1 Check that the distortion is not due to environmental
conditions. Move the monitor.
2 Adjust the vertical and horizontal center of screen. See
“User Adjustments” in Adjustments.
3 Adjust the raster center at VR701. See “Raster Center
Adjustment” in Adjustments.
4 Doublecheck items 1 through 3.
5 Replace video and main deflection boards. See “Main
Deflection, CRT/Video Boards and Rear Fence” in Take Apart.
Adjust cutoff and white balance. See “Cutoff and White
Balance” in Adjustments.