Apple lc 580.performa 580cd Manuale Di Servizio

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 Adjustments
Geometry - 9
 
Vertical Shift
 
1 Run Display Service 
Utility to display the 
All-White Screen test 
pattern.
2 Using a hex-head plastic 
adjustment tool, adjust 
the VS (vertical shift) 
control until the raster 
is centered (top to 
bottom) in the screen.
 
Note:
 
   The VS (vertical 
shift) and HS (horizontal 
shift) controls on this 
monitor are also accessible 
when the rear housing is on. 
Adjustment
Controls
All-White Screen