Under low light image color is inwardly balance disorders. When under low light image partial green or reddish, red and dark balance adjustment potentiometer R361 disorders; When dysprosium image is yellow or blue, is blue dark balance potentiometer. R359 imbalance, when the image is purple or partial, green, dark green balance potentiometer R360 disorder CVQservice manual download site
 CVQservice manual download site
Receive television signal generator of gray level ladder signals or striped, shut down the TV saturation knob. Observe low light ladder, color balance potentiometer R361 myself, until the low brightness of the image are pale, and checking whether each is without color and degree of close, dim brightness, contrast, and then looked at the image to adjust the background.CVQservice manual download site