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led显示屏单元板维修之有两行灯不亮？是芯片问题？还是灯的问题
LED单元板维修系列48/60
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App04:22
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App03:57
App04:54
App09:59
App04:27
App03:54
App03:59
App08:20
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App04:47
App03:03打开App观看
App02:29App04:22App06:00App04:17App03:57App04:54App09:59App04:27App03:54App03:59App08:20App03:45App04:47App03:03
