论文部分内容阅读
(2)图像存储器的輶輩訛脚电压异常的故障图像存储器的輶輩訛脚为VREF端,该脚外接电阻器R177、R179,电容器C1117、C1119,这些元件出现故障将造成该脚电压异常,也会引起液晶电视机出现“花屏”的故障。电阻器R177、R179的好坏可直接用万用表检测,电容器C1117、C1119与电阻器R179并联,即检测电容器两端电阻值相当于检测电阻器R179两端的电阻值。由于电容器本身的电容量较小,可使用数字万用表的电容档检测。用数字万用表检测电容器电容量时,首先选
(2) the image memory of the error of the generation of false positive voltage abnormal fault image memory of the wrong people for VREF end of the pin external resistor R177, R179, capacitor C1117, C1119, the failure of these components will cause the foot voltage anomalies, Will also cause the LCD TV “Huaping ” failure. Resistors R177, R179 good or bad can be directly detected with a multimeter, capacitor C1117, C1119 and resistor R179 in parallel, that is, the detection capacitor across the resistor value is equal to the resistance across the detection resistor R179. As the capacitance of the capacitor itself is small, you can use the digital multimeter capacitance detection. Use digital multimeter to detect capacitor capacitance, the first election