创维29HI9000检修,本文由家电维修杂志论坛http://www.jdwx.cn/收集资料收到其他维修同行的一台创维29HI9000彩电,开机指示灯闪烁,消磁继电器‘哒哒’响。查+B电压只有十几伏,+5V在3.5V左右摆动;该机为5T25机芯,开关dianyuan电源采用STRS6709,检查STRS6709及Q601(D1640)各脚电压,发现Q601基极电压为0,查ZD601(7.5V)稳压管短路,换新后【故障】排除 |
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