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开宗明义从维修角度出发,不管是背投(影)彩色电视机,还是大屏幕彩色电视机,甚至是液晶、等离子彩色电视机,根据其主要用途可把各种功能的电路分为四种:第一种是呈现高质量的彩色电视画面;第二种是重放逼真的声音;第三种是实现各种功能的控制;第四种是向各电路提供合适的工作电压和电流——电源供给部分。这就是说,在整机软件系统的配合下,各电路的工作都是特定的。若其工作不正常,就必然在画面、声
Starting from the maintenance point of view, whether it is rear projection (shadow) color TV, or large-screen color TV sets, and even LCD, plasma color TV sets, according to its main purpose can be divided into four kinds of functional circuits: One is to show high-quality color television pictures; the second is to reproduce the realistic voice; the third is to achieve the control of various functions; the fourth is to provide the appropriate operating voltage and current circuits - the power supply section. This means that with the cooperation of the complete software system, the work of each circuit is specific. If its work is not normal, it is inevitable in the picture, sound