Apple 1705 ユーザーズマニュアル

 

 Troubleshooting

Symptom Charts/Geometry

 

 (Continued)

 

 - 12

 

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.