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显像管是电视机的心脏 ,保护显像管是延长电视机使用寿命的关键。保护显像管 ,要注意以下两点 :1在开电视机之前 ,先把亮度旋钮扭到最小位置 ,两分种后再把亮度旋钮调到正常位置。2收看电视节目时 ,显像管的亮度不可调得太大。亮度过大 ,不仅会缩短显像管的使用寿命 ,而且还会
The picture tube is the heart of the television, and protecting the picture tube is the key to extending the useful life of the television. To protect the picture tube, pay attention to the following two points: 1 Before turning on the TV, first turn the brightness knob to the minimum position, and then adjust the brightness knob to normal position after two minutes. 2 watching television programs, the tube brightness can not be adjusted too much. Brightness is too large, will not only shorten the useful life of the tube, but also