| 故障表现为：伴音不良 维修与分析：开机图像正常无声音，首先测U701 TAS5707 供电24V正常，检测静音电路也正常，怀疑 U701不良，于是更换U701 故障机修到这里，终于修好值得探讨。。 |
|Archiver|手机版|家电维修论坛
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