论文部分内容阅读
故障现象:开机“,三无”。检修:经检查,发现保险管发黑,开关管VQ83击穿。调整管推动管及周围的稳压二极管都击穿。把损坏的元件全都代换成新元件后,断开负载,用100W灯泡作假负载,再仔细检查一遍电源板,确认无误后再开机一试。谁知在开机瞬间保险管又烧黑,赶快测新换的元件,一测
Symptom: boot, “three no.” Overhaul: After inspection, it was found that the fuse black, switch VQ83 breakdown. Adjust the tube to push the tube and the surrounding Zener diode breakdown. The damaged components are all replaced by new components, disconnect the load, with a 100W bulb for the fake load, and then double-check the power board again, confirm the correct boot again. Who knows in the boot fuse and burn black, quickly test the new components, a test