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长虹LED39B2000C 有时亮灯有时不亮灯故障

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Post time: 2019-6-3 12:14:40
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本帖最后由 zkc999888 于 2019-6-3 12:18 编辑

直接上图 配合图纸 看下就明白了,都是点胶惹的祸患,  上传的图压缩看不清了, 大家注意是 VC电压无输出 检查测到VB电压只有2V 测试VB对地电阻56K 只有10K对地,拆机把胶刮了 测试阻值正常

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Post time: 2019-6-26 21:08:19
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谢谢楼主的好资料分享!
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