Monitor Check: RGB
This screen verifies that the display unit is receiving the video (R, G, B and Composite sync) signals properly The three primary colors should all appear without distortion The combination of all three should produce a central white section If any of the colors are missing, troubleshoot for the color signal (see PICTURE IS MISSING A COLOR OR TONE OR IS AN ODD COLOR ). If the picture has lines in it or scrolls horizontally, or vertically, troubleshoot for a Composite sync problem (see PICTURE HAS LINES, ROLLS, OR IS BLURRY )