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Faint, vertical lines
1 Use the remote control to adjust the sync first. If the
of distortion
lines of distortion move uniformly across the screen as you
adjust the sync, there is a dot clock problem.
2 Adjust the dot clock slowly so that the shading gets farther
and farther apart, until it is gone. This may require trial and
error as you must avoid skipping over the correct value.
Dark, vertical lines
You may detect dark, uniformly-spaced vertical lines
of distortion
(sometimes with smaller lines on either side of each dark
line) in Scale or Normal mode, or both. Any of the following
steps may eliminate this problem.
Dark Lines in Scale mode only
1 With the menus closed, use the arrow keys on the control
panel or the MouseDisk on the remote control to pan the
image down until it stabilizes.
2 Adjust the contrast.
3 Change the colors to 512.
4 Change the computer-screen background colors; certain col-
ors may cause this pattern to appear in Scale mode.
Dark lines in Normal mode only
1 Adjust the contrast.
2 Change the colors (Preferences menu; Colors) to 512.
3 Change the computer screen background colors; certain col-
ors may cause this pattern to appear in Scale mode.
Troubleshooting 105