故障表现为:笔者收到同行送来的故障机壹台创维32E15HR液晶电视,故障表现为开机后背光亮灰屏。 故障检修:测量上屏12V电压正常,测VGH电压没有,再测各组电压对地阻值时发现CP8只有480欧阻值,代换后正常。具体请看下图: |
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