Pattern 10: "Colour Bar" - Philips PM 5508 Operating Manual

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1. Pattern 10.
"COLOUR BAR"
Fig. VII-25. "COLOUR BAR"-pattern
The upper part of this pattern is produced by the standard colour bar signal
(75% contrast), see vector diagram, Fig. VII-26. The bars are arranged in the
sequence of decreasing luminance. From left to right the bars are: white,
yellow, cyan, green, magenta, red, blue and black. This pattern is used to
set the "customer-controls" of the receiver to the correct positions (see
section VI "OPERATION", pages 21 and 22).
The lower part of this pattern serves as a reference to enable adjusting the
amplitude ratio of the colour-difference signals to the picture tube.
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