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笔者是有十多年彩电检修经验的专业维修技师,工作之余在与同行的交谈当中,深感电源损坏引起“三无”的故障机特别多,检修起来有的相当简单,但不时也会遇到检修起来相当麻烦,甚至忙上几个小时仍没进展的尴尬局面。就其原因有这样两方面:一是国外走私进入我国并经过改装的大屏幕彩电无图纸,其电源厚膜块等配件在市面上难买到;二是正规进口和国产的某些品牌彩电电源电路结构复杂,电路板上布线
I have more than 10 years experience in the maintenance of color TV repair technicians, spare time in the conversation with their peers, deeply damaged power cause “three no” failure machine is particularly large, some of the repair up is quite simple, but from time to time will Encountered very troublesome maintenance, and even busy for a few hours still not progress embarrassing situation. There are two reasons for this: First, smuggled into our country and after the modification of the large-screen TV without drawings, the power of thick film and other accessories hard to buy on the market; Second, regular imports and domestic brands of some of the color TV power supply Complex circuit structure, the circuit board wiring