彩电电源部分大容量电解电容器的一种特殊故障现象机型黄河ＨＣ－３７－Ⅱ型故障现象购置不到一个月，开机后满屏幕出现不规则的黑色干扰条，机内相应地有“吱、吱”叫声，但图象、伴音均正常。故障分析与修理用视听法大致判断出叫声在电源部分。断开负载（焊开Ｌ＿（８０... Part of the phenomenon of large-capacity electrolytic capacitor color TV power failure phenomenon Model HC-37-Ⅱ failure to purchase less than a month, turn on the screen after the emergence of irregular black irregularities, the machine there is a “squeak, Squeak ”cry, but the image, sound are normal. Fault analysis and repair with audio-visual roughly determine the sound in the power part. Disconnect the load (welding opened L_ (80 ...