【故障】检修,本文由家电维修杂志论坛http://www.jdwx.cn/收集资料:行幅的大小,一般由开关dianyuan电源输出电压、行逆程电容、S效正电容和枕效电路等共同决定。根据【故障】现象,重点检查检查枕效电路和行逆程电容。测量枕效电路VD26 C极电压为12V,并慢慢下降至7V左右(正常为24V)。查遍枕效电路没有发现【故障】元件;检查行逆程电容,当代换C400(4N7/1600V)后【故障】排除。VD26 C极电压恢复为24V。 |
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