ADJUSTING DEVICE OF COLOR TELEVISION RECEIVER

摘要

PURPOSE:To adjust easily and accurately a color circuit by extracting two kinds of color signals from the post stage of a color demodulating circuit, mixing them and displaying the result when they are adjusted correctly so that the output becomes zero. CONSTITUTION:Two color signals such as B-Y and R-Y are extracted from a position at a post-stage from the color demodulating circuit 8 and a post-stage from a skin color correcting circuit 7 to be adjusted and fed to a mixing circuit 11 at first. When the skin color correcting circuit 7 is in the correct adjusting stage, a mixture ratio is set so that the output of a mixing circuit 1 is zero, it is fed to an oscilloscope 12 to display the waveform. In adjusting the skin color correcting circuit 7 through the setting above, the skin color adjusting circuit 7 has only to be adjusted so that a signal output corresponding to the 2nd color bar is zeroed in a display screen of the oscilloscope 12.