分析与检修：开机检测场集成块 IC301 各½电压正常，测量外围元件也没有损坏，拔下场偏转线圈测量其电阻值已经开路。测量发现在显像管尾部的偏转线圈½口电路板有故障。测量电路板发现该½口板上有根½线柱断裂，连½后机器故障排除。 |
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