收到同行送来的故障机壹台索尼KLV-40V300A液晶电视,故障为开机绿灯亮,有继电器吸合声,随后亮红灯闪8次关机。拆开机器,接3.3V强行开机,电源各路输出正常,重点检查主板,查资料,发现是稳压块损坏,身边无此稳压块,用27欧电阻将一三脚连接,试机一天正常,故障修复。 |
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