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行输出变压器(以下简称FBT)是行输出电路的心脏,一旦出现故障,常引起“三无”现象,并引起个别机型的行输出管击穿,开关电源损坏,保护电路起控等。如能准确、快速判断FBT的好坏,则能极大地提高维修员的维修效率,使维修工作少走弯路,少陷困境。
Line output transformer (hereinafter referred to as FBT) is the heart of the line output circuit, in the event of failure, often cause “three no ” phenomenon, and led to individual models of the output tube breakdown, switching power supply damage, protection circuit control . If accurately and quickly judge whether the FBT is good or bad, it can greatly improve the maintenance efficiency of maintenance staff, make maintenance work less detours, less predicament.