| / B9 ~8 Q. y: I/ `6 Z 【故障】现象:有时不开机,有时放几天都可以. 2 O7 ?$ b* b) w* X# A【故障】检修,本文由家电维修杂志论坛http://www.jdwx.cn/收集资料:开机检查灯丝亮,测阴极电压均为180V,调高加速极电压,图像伴音都正常了。但关机一会后再开机又出现原【故障】。把视放管全部代换后【故障】排除,原因可能是个别管性能不良而保护 |
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