彩电电源管和行管损坏的原因除了过流、过压及自身质量外,还有一种常见的原因就是一些维修人员,在修理更换管时,不小心弄坏了绝缘垫,或者长时间待买原型号配件时丢弃了绝缘垫等原因,修理时只好自制或代用一些较厚的绝缘垫,虽然一时解决了问题,但给机器长期带来了隐患。故障表现 In addition to over-current, over-voltage and quality of their own, there is a common cause of the damage to the color TV power tube and the tube. Some maintenance personnel accidentally broke the insulation pad when repairing the replacement tube, or for a long time to buy Prototype parts discarded when the insulation pad and other reasons, had no choice but to make or replace some of the thicker insulation mat, although the temporary solution to the problem, but to bring long-term risks to the machine. Failure performance