收到同行送来的故障机壹台创维32E380S液晶电视，故障表现为开机屏幕一闪即黑屏，拆机测背光电压78V便立即消失，断开与R301与R303串联跳线，测两电阻阻值分别为199kΩ与218kΩ，确定R301点胶问题，测下R301再测为217kΩ，串2.2kΩ电阻开机正常。   |
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