Troubleshooting

 

Symptom Charts/Geometry (Continued) - 12

 

 

Geometry (Continued)

Raster is not centered

1

Check that the distortion is not due to environmental

 

 

2

conditions. Move the monitor.

 

 

Adjust the vertical and horizontal center of screen. See

 

 

3

“User Adjustments” in Adjustments.

 

 

Adjust the raster center at VR701. See “Raster Center

 

 

4

Adjustment” in Adjustments.

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

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Image 30
Apple 1705 manual Geometry