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机型:一台星海牌51CJ3Y 型彩色电视机故障现象:手按下遥控发射机任何一个键,彩电均无反应,但指示灯(发光二极管)每次都亮。分析检修:指示灯亮说明振荡器在按键作用下均能正常起振。通过串接在整机电源线上的电流表指针的抖动也证明了这点。
Model: a Xinghai 51CJ3Y-type color TV Problem: hand press any key a remote control transmitter, color TV are non-reactive, but the light (light-emitting diode) are bright. Analysis and maintenance: indicator light on the oscillator can be activated under the button. This is also evidenced by the jitter of the ammeter pointer connected in series on the power cord of the machine.