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修LG显示器注意了

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Post time: 2015-5-25 12:22:39
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LG19-22寸LCD显示器屏显示一下就黑屏关机,如果拆开看电源板高压供电标的是22V(实测空载27V带负载26V),大部分是灯管老化不是高压板问题,大家注意不要误判,本部遇到多例,有网吧的也有个人的

这机子很奇怪,1、2个灯管不亮了,接信号却看不出亮度不足,所以容易误判


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Post time: 2015-5-25 12:38:09
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              你才知道啊
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Post time: 2015-5-25 14:23:36
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                       实践出真知
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Post time: 2015-5-25 14:45:48
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你才知道啊,实践出真知.........
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Post time: 2015-7-30 10:38:45
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应该不会误判吧!测一下灯管不就知道了吗,这种情况我肯定先测灯管!

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Post time: 2015-8-12 11:04:45
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这种情况我肯定先测灯管!
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Post time: 2015-8-12 12:41:53
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这种情况我肯定先测灯管!
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Post time: 2015-8-12 13:44:19
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这个不可能误判的,修(换)高压板以前,都要先检查灯管的。
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Post time: 2015-10-30 21:11:45
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感谢楼主分享资料
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Post time: 2015-10-30 22:12:17
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这种情况我肯定先测灯管!
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