收到同行送来的故障机壹台康佳LED42X8100PDF液晶电视,故障表现为绿灯亮,不开机,冷机刚开机时无黑线,过几分钟才会有黑线,随着开的时间越长横线越多。此故障是主板12V贴片电容对地短路导致的,如下图1所示,更换后故障修复。 |
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