Apple 5260, 5280 manual Pincushion Control E/W Keystone Control R438

5260 and 5280 Adjustments Geometry - 17

Pincushion Control (E/W 2)

Keystone Control (R438)

Important: Use a fine-tip plastic adjustment tool for the following adjustments.

2If the raster is barrel- shaped, adjust the Pincushion (E/W 2) control.

3If the raster is narrower or wider at top than bottom, adjust the Keystone (R438) control.