Apple 575, 577, 560, 550, 500, 578 manual Vertical Size

Adjustments Geometry - 5

Vertical Size

1 Using a hex-head plastic adjustment tool, adjust

All-White Screen the vertical height (VH) control until the raster height is 7 inches

(± 1/8 inch) or 176 mm (± 2 mm).

2 Verify this height. If it is off, repeat the vertical size adjustment and, if necessary, the vertical center adjustment.