A-4 Diagnostics and Troubleshooting GuideVideo Scan Alignment SubtestThe video scan alignment subtest displays two successivescreens: The first screen is a pattern of horizontal andvertical lines, which should be straight and evenlyspaced. The second screen is a pattern of boxes (arrangedin columns and rows), which should have straight bordersand be evenly spaced. Figures A-3 and A-4, respectively,show examples of the first and second video scan align-ment subtest screens.Figure A-3. Video Scan Alignment Subtest (Screen 1)Are the lines correctly aligned - Y/N?Video Scan Alignment Test
