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首先关闭AFT输出(以金星C6458/C7458彩电为例,将中放集成电路IC110(16)脚上的R136电阻断开),用“手动方式”调准一个电台(尽可能调准,如调不准。可调一下“图像中周”L115);然后用万用表测IC110(16)脚电压,边用无感调试棒调节L117“AFT中周”,注意
Turn off the AFT output first (take the Venus C6458 / C7458 color TV as an example, disconnect the R136 resistor in the IC110 (16)), and adjust a radio station by “manual mode” (if possible, Adjustable “image week” L115); Then use a multimeter to measure IC110 (16) pin voltage, adjust the L117 “AFT midweek”