大屏幕彩电中由于功能的增多,转换电路中模拟开关的应用也越来越普通,由模拟开关及控制系统电路造成的图像、伴音故障也常见,如果采用一般更换的方式是不妥的,集成电路拆装过程极易使印刷电路受到损伤。正确的方法是,应首先确认是控制电路故障还是模拟开关本身损坏,然后再进行处理。本文以常见模拟开关引起的故障举例说明检修方法。 Large-screen color TV because of the increase in function, the conversion circuit analog switch applications are more and more common, the analog switch and control system circuit caused by the image, sound fault is also common, if the general replacement of the way is inappropriate, integrated Circuit disassembly process can easily damage the printed circuit. The correct way is to first confirm that the control circuit fault or analog switch itself is damaged, and then processed. In this paper, common analog switch caused by the failure of an example of maintenance methods.