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一、一台仿飞跃14英寸自装机。现象:图象和伴音均正常,但扬声器间断发出咚、咚、咚的打鼓声音。在出现响声的同时,在荧屏上出现一条黑带闪烁。处理:拆开高压硅堆盒,发现硅堆帽部和高压包硅盒座生锈严重,硅堆已发热。经去锈清理后,装回试机一切正常。原因:由于锈斑造成高压硅堆与盒座接触不良,出现间断性跳火。电火花辐射波窜入伴音电路,使扬
First, a fake leap 14-inch self-installed machine. Phenomenon: images and sound are normal, but the speaker intermittent issue boom, boom, boom drum sound. A black belt flashes on the screen while the noise sounds. Disposal: open the high-voltage silicon heap box and found that the silicon pile cap and high-pressure silicon box block rusty serious, silicon pile has been fever. After going to rust clean, replace all test machine normal. Cause: due to rust caused by high pressure silicon reactor and the box seat poor contact, intermittent flashover. EDM waves flew into the sound circuit, so Yang