| 故障表现为：搜台少且有雪花 检修与分析：接其他信源试机都正常，怀疑故障出在高频电路，拆开机器测量高频头供电IC/U100输出电压偏低，将高频头供电脚断开后该电压恢复正常。怀疑高频头TU1/F33WT-3DD-E坏。申请该型号高频头更换后试机OK。 |
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