很多家庭里都有五六个遥控器,有时候遥控器坏了你却检查不出问题,束手无策。
大多遥控器都用红外光来传递信号。人眼是看不到这条光的,但是相机是可以的。你可以按照下列步骤,学习一下怎么检测遥控器发出的红外信号。
步骤
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1
把你家里失灵的遥控器都拿来,同时拿部有摄像头的手机或数码相机。
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2
将数码相机打开,你只需要在进行如下过程时,仔细观察数码屏幕即可。
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3
不需要关灯(但是可能会让你更清晰地看到红外光)。
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4
将遥控器指向镜头,跟你平时指向电视一样。
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5
按住任一按钮,同时眼观相机镜头。注意:有的按钮可能不按默认方式传输信号。一开始最好尝试一下开关键。
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6
按住遥控器按钮,同时观察镜头,如果你发现了蓝色的光点,那就表明红外线信号发射正常,可能在遥控器和电视的直接连接上出了问题(如果是万用遥控器,你需要设置到电视的接收频道,如果不是万用的,可能你只是没有正确对准电视而已。)。
小提示
- 本教程也可以教你检测红外光探头和主动红外警报器(AIR),但是不能用于最便宜、最常见的被动红外警报器。
- 如果上述过程都失败了,就查一查相关wikiHow文章吧。
- 换换电池,再试试看。
- 试用一下万用遥控器。
- 最好请另一个人来按遥控器按钮,你来看着镜头。
警告
- 本文不能教你怎么修理坏了的遥控器,只是教你如何做问题诊断而已。
你需要准备
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失灵的遥控器
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事先准备好的可用的电池
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任何数码相机(带相机的手机,或者电脑摄像头也可用)
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一位帮手帮你按遥控器按钮(可选)