Apple lc 580.performa 580cd Manuale Di Servizio
Adjustments
Convergence - 29
One Control
If the CRT yoke has one
convergence control,
1 Run Display Service
1 Run Display Service
Utility to display the
Crosshatch I test
pattern.
2 Using a flat-head plastic
adjustment tool, adjust
the convergence control
for best convergence of
the horizontal lines at
the top of the screen and
the horizontal lines at
the bottom of the screen.
Convergence Control
Crosshatch I