Apple lc 580.performa 580cd Instruction De Maintenance
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Adjustments
Geometry - 11
Vertical Height
1 Using a hex-head plastic
adjustment tool, adjust
the VH (vertical height)
control until the raster
height is 7-1/8 inches
(± 1/8 inch) or 180
mm (± 2 mm).
2 Verify this height. If it
is off, repeat the
vertical height
adjustment and, if
necessary, the vertical
shift adjustment.
Adjustment
Controls
All-White Screen