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+300V滤波电容损坏后会使彩电画面上出现条纹干扰或使开关变压器产生“吱吱”的叫声,这在维修者中已形成了一种共识。然而正是由于这种思维定势,才使笔者在检修一台熊猫3608A彩电遥控失灵故障时颇费了一番曲折才排除故障。现把检修经过记述如下,供同行借鉴。
Damage to the +300 V filter capacitor can cause streaking on the color TV screen or “creak” on the switch transformer, a common understanding among service providers. However, it is precisely because of this mindset, only make the author overhauling a panda 3608A color TV malfunction took a lot of twists and turns before troubleshooting. Now overhaul described below, for peer reference.