| 摘要 |
A white balance adjusting system for a color television system has three CRTs for projecting beams of three primary colors, and a color control circut for controlling outputs of the three CRTs. Three sensors are provided adjacent each CRT for detecting quantity of each color light. A memory stores three reference quantities of respective color lights for obtaining a white balance. Each detected quantity of the color light is compared with the reference quantity by a computer. The color control circuit is operated so as to reduce the difference obtained by the comparator to a predetermined value.
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