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求助,屏电路问题

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Post time: 2015-11-7 09:53:32
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正常的驱动板电压5V加到屏电路上就会由0-5V快速跳动,屏电路上有轻微的“嗒~嗒~”响,灯管不能点亮,不连屏线可以点亮灯管,哪位大神知道什么问题...求指点...

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Post time: 2015-11-7 11:08:08
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驱动板  或刷程序
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 Author| Post time: 2015-11-7 11:11:55
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迎客松 发表于 2015-11-7 11:08
驱动板  或刷程序

不是,换了几个好的通用驱动板也一样...
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Post time: 2015-11-7 11:54:43
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边条上的DC-DC电路或者负载查下
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Post time: 2015-11-7 13:55:27
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屏边条上面有短路问题,  , 或者屏COF上面有短路的问题,   ,  ,
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Post time: 2015-11-7 16:37:55
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应该是屏上5V供电有短路了
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Post time: 2015-11-7 21:39:54
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逻辑板换来吗  
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Post time: 2015-11-8 18:09:38
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屏边板有问题。有些逻辑板与屏是一起的,一般维修人员是没法换的。
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Post time: 2015-11-10 15:11:14
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只有修屏边板才能解决,也有可能玻璃基或 TAB坏的(希望不是)
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Post time: 2015-11-10 17:44:30
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了解一下,过来学习一下。
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