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有些电视机使用日久会产生拉杆天线带电故障。根据多年修理经验,这种故障多与高压放电产生的辐射有关。因此,应重点检查、排除高压部分的放电现象。1.采用分离式行输出变压器的黑白电视机,造成高压向外放电的原因有:高压帽破损、高压卡簧锈蚀打火、高压帽盖破损或高压线内部断线。修理这类机器时最好将高压包、硅堆、高压线同时换新,并注意将显像管高压嘴处理干净。2.采用一体化行输出变压
Some TV sets over time will have a rod antenna live failure. Based on many years of repair experience, this failure is mostly related to the radiation generated by high-voltage discharge. Therefore, should focus on inspection, to exclude high-voltage part of the discharge phenomenon. 1. The use of separate black and white TV output transformer, resulting in high-voltage discharge to the outside due to: high-pressure cap damage, high-pressure spring corrosion rusting, high-pressure cap damage or high-voltage line internal disconnection. Repair of such machines is best to high-pressure package, silicon reactor, high-voltage line at the same time for new, and pay attention to the high-pressure nozzle tube clean. 2. The use of integrated output transformer