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问题:一笔记本电脑开机后,自检未完成即自动断电,但用电源适配器给笔记本供电时一切正常。 分析:从故障现象可以看出,问题应该出在电池或笔记本内的电池供电电路上。 本着先简后难的原则,首先检查电池。测量电池的两个电池组的电压均为10.5V,用外接电炉丝的方法给电池放电以估计电池组的容量,发现两个电池组的容量都较为充足。因而“排除”了电池存在故障的可能性。 再检查电池与笔记本电池触片,也没有发现任何接触不良的问题。于是断定故障在笔记本内的电池供电电路上。仗着自己有较强的家电维修功底,找
Question: After a laptop is powered on, it automatically powers off when the self-test is not completed, but everything works when the laptop is powered by the power adapter. Analysis: From the phenomenon of failure can be seen, the problem should be in the battery or laptop battery power supply circuit. In the first simple and difficult principle, first check the battery. The voltage of the two battery packs of the measuring battery was 10.5V. The battery was discharged by an external electric furnace wire to estimate the capacity of the battery pack. It was found that the capacity of both the battery packs was relatively adequate. Thus “ruled out” the possibility of battery failure. Then check the battery and laptop battery contacts, did not find any problems with poor contact. So determine the fault in the notebook battery-powered circuit. Rely on their own strong appliance repair skills, find