Warning: Use of undefined constant title - assumed 'title' (this will throw an Error in a future version of PHP) in /data/www.zhuangjiba.com/web/e/data/tmp/tempnews1.php on line 152 u盘修复的小技巧
- 分类:u盘教程 发布时间: Warning: Use of undefined constant newstime - assumed 'newstime' (this will throw an Error in a future version of PHP) in /data/www.zhuangjiba.com/web/e/data/tmp/tempnews1.php on line 156 2013年03月15日 00:00:00
【U盘修复小技巧】现在U盘已经很普及了,我们平时的日常生活工作都离不开u盘。这也使得我们的U盘很容易出现各种问题。这里装机吧小编给大家介绍几种U盘修复的小技巧。
U盘插入电脑,提示“无法识别的设备”。
对于此现象,首先的一点说明U盘的电路基本正常,而只是跟电脑通信方面有故障,而对于通信方面有以下几点要检查:
①U盘接口电路(U盘是由什么组成的:http://www.kkzj.com/),此电路没有什么格外元件就是两根数据线D+ D-,所以在查看此电路时只需丈量数据线到主控之间的线路能否正常即可,通常都在数据线与主控电路之间会串接两个小阻值的电阻,以起到维护的效果,所以要查看这两个电阻的阻值能否正常。
②主控,如果上述两点检查都正常,那就可以判断主控损坏了。
③时钟电路,因U盘与电脑进行通信要在一定的频率下进行,如果U盘的工作频率和电脑不能同步,那么系统就会认为这是一个“无法识别的设备”了。这时就要换晶振了。而实际维修中真的有很多晶振损坏的实例!
U盘插到机器上没有任何反应
根据故障现象判断,U盘整机没有工作,而U盘工具所要具备的条件也就是我们维修的重点。无论任何方案的U盘想要工具都必须具备以下几个条件:
①主控,如果上述两个条件都正常那就是主控芯片损坏了。只要更换主控了。
②供电,分为主控所需的供电和FLASH所需的供电,这两个是要害,而U盘电路十分的简略,如没有供电通常都是稳妥电感损坏或3.3V稳压块损坏。只需查到哪里是没有供电的本源,疑问就会很好处理了。
③时钟,因主控要在必定频率下才干作业,跟FLASH通讯也要*时钟信号进行传输,所以若是时钟信号没有,主控必定不会作业的。而在查看这方面电路的时分,其实时钟发生电路很简单,只需要查看晶振及其外围电路即可,因晶振怕刷而U盘细巧很简单掉在地上形成晶振损坏,只需替换一样的晶振即可。
解决方法:
关于此表象,能够判别U盘自身硬件没有太大疑问,仅仅软件疑问而以了。找到主控计划的修正东西搞一下就能够了。
U盘常出现的毛病大概也就是这些了。而关于u盘写保护、U盘变文件夹打不开等现象,装机吧都有介绍过这里就不再重复了。
我们看完之后有没有一个明晰的思路了呢?
责任编辑:装机吧小亮 版权所有,转载请说明出处!
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