changhong长虹C2588A【故障】现象:有时开机启动正常;有时开机红色指示灯亮,按频道键或遥控器环绕指示灯亮,不能开机。& I( j! f$ d& H 【故障】检修,本文由家电维修杂志论坛http://www.jdwx.cn/收集资料:开机测+B115V电压为65V;24V为9V,为待机状态。怀疑待机控制电路有问题,根据经验先重点补焊待机控制电路,当补焊到VQ833时,【故障】排除。 |
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