收到同行送来的故障机壹台海尔LE55G3000液晶电视,故障表现为开机LOGO无背光,但启动时背光点亮,背光点亮迟动反应慢 ,拆开机器检测OB3354QP正常,接着往下查,是C204漏电导致,更换C204上电开机瞬间点亮LOGO,背光正常点亮,连上网试机数小时关机再起一切正常 。 |
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