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dpc-80 r7按键音量大小无法调节

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Post time 2019-03-02 18:49:46 | Show all posts |Read mode
顾老师 手里有台r7 数字音量调节 屏幕显示0db 1db 2db------36db 这些区间内音量 大小一致感觉是正常机器的最大音量 区间内无法调节大小音量 42db 54db 60db 这个区间音量大小一致也无法调节 音量可以测底关闭 故障再大电路板上 调换过sm5814故障依旧 老师给诊断一下 整机电容都换过了
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Post time 2019-03-04 00:32:26 | Show all posts
重焊DSP. 怀疑虚焊。
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Post time 2019-04-07 19:09:12 | Show all posts
maybe I can help you.
ShangHai China.
PM me please.
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