索尼红灯闪5次不是主板就是屏,顿时一想有可能是屏没装上,导致主板检测到没有屏而导致保护了,遂装屏试机,一切正常,这个电视一共维修了三四个小时,太失望了,就是因为不知道红灯闪五次是什么故障,找了半天后才知道,这款机器屏不装的情况下还会有保护。该机脚为LED灯条负端反馈,任意一个不正常芯片即判断为背光故障,信号反馈至CPU,CPU发出保护关机指令并显示故障代码(灯闪)。当把无电压与电压正常脚并接后,“骗”过了芯片检测功能。看来令人头疼的索尼红灯闪n次同样可以用“欺骗法”。
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