Video Scan Alignment Subtest; Figure A-3. Video Scan Alignment Subtest (Screen 1 - Dell OptiPlex N Troubleshooting Manual

Video Scan Alignment Subtest

The video scan alignment subtest displays two successive
screens: The first screen is a pattern of horizontal and
vertical lines, which should be straight and evenly
spaced. The second screen is a pattern of boxes (arranged
Video Scan Alignment Test
Are the lines correctly aligned - Y/N?

Figure A-3. Video Scan Alignment Subtest (Screen 1)

A-4 Diagnostics and Troubleshooting Guide
in columns and rows), which should have straight borders
and be evenly spaced. Figures A-3 and A-4, respectively,
show examples of the first and second video scan align-
ment subtest screens.