电视机尤其是彩色电视机,无论在什么样的环境里使用,都应当定期清除机内灰尘。只有这样做,才能保证电视机的收视效果,延长使用寿命。电视机工作时发热,造成机内外空气的对流。即使在电视机不用时盖上布罩,或者刚一关机立刻罩上布罩,都不能完全防止电视机在工作时空气在机内外流动而把灰尘带进电视机内;由于电视机内有些元器 TV sets, especially color television sets, should be periodically cleaned of dust, regardless of the environment in which they are used. Only in this way can we guarantee the television viewing and extend the service life. TV work fever, causing air convection inside and outside the machine. Even when the television sets are not covered with cloth cover, or just a cover immediately shut down the cover, can not completely prevent the TV in the work of air flow inside and outside the machine to bring dust into the TV; As some TV elements Device