更换扬声器 50%
检查扬声器线路 30%
更换音响控制单元供电线路 20%
https://qc.dianpusou.com/tag/08%e5%b9%b4%e6%97%a5%e4%ba%a7%e8%bd%a9%e9%80%b8%e4%ba%8c%e6%89%8b%e5%a4%9a%e5%b0%91%e9%92%b1
更换扬声器 50%
检查扬声器线路 30%
更换音响控制单元供电线路 20%
https://qc.dianpusou.com/tag/08%e5%b9%b4%e6%97%a5%e4%ba%a7%e8%bd%a9%e9%80%b8%e4%ba%8c%e6%89%8b%e5%a4%9a%e5%b0%91%e9%92%b1