User Manual

4: Color Bars
Color Bars 75%
Same as the top of the SMPTE Bars Pattern
Description: Seven equal-width vertical bars with 75% (gray) at left, followed by three primary and
three secondary colors. Color bars are at 100% saturation with 75% amplitude.
Pattern Usage: Use as an overall check of a display device’s capability of producing fully saturated
primary and secondary colors. Especially helpful in detecting full (or partial) loss of colors in older
displays. Also good as a reference input signal when troubleshooting and signal tracing color amplifier or
color demodulator problems within a display device.
Examples of Uncalibrated Displays: The following images indicate a TV with incorrect hue settings.
Adjust the Hue (or Tint) setting so the first bar appears white (or gray).
Too Red Too Green Too Blue