创维25NF8800 $ S9 \9 a \/ w3 a* m【故障】现象::跑台8 Z5 @$ H( z8 l 【故障】检修,本文由家电维修杂志论坛http://www.jdwx.cn/收集资料:脱开高频头调谐电压输入端与电路板的连接,用10K挡,黑表笔接高频头调谐电压输入端,红表笔接地测量电阻,电阻为100K左右且不稳定(正常为无穷大),说明【故障】在高频头。该机高频头型号为ENV59D69F1(11脚),试用TCL79107D5B3(6脚)代换,跑台【故障】排除。 |
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