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故障现象:有图像,有伴音,但无彩色。检修过程:(1)开机检查彩色通道部分有无虚焊,如图1所示。色饱和度控制是靠IC501(D7193P)(20)脚
Symptoms: There are images, accompanied by sound, but no color. Maintenance process: (1) boot check the color channel part of the Weld, as shown in Figure 1. Color saturation control is by IC501 (D7193P) (20) feet