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[例1]故障现象 行不同步,调整行频旋扭不能出现同步点。 分析与检修 首先怀疑故障出在行振荡级。逐个检查行振荡级各元件没有发现异常,接着又查AFC积分电路相裂相与鉴相级均正常。于是又从裂相管6BG1的基极逐个元件
[Example 1] Symptom Row asynchronous, adjust the line frequency knob can not appear synchronization point. Analysis and Overhaul First of all suspect that the fault is in the line oscillation level. One by one to check the line oscillation level of the components found no abnormalities, and then check the AFC integral phase crack phase and phase level are normal. Then again from the base of the split phase tube 6BG1 element by element