索尼超薄磁带随身听满满的情怀啊只可惜再也回不去了2021-01-28 21:09·闲余电子
应网友要求拆解一台索尼超薄磁带随身听,银色纤薄的机身,非常薄,也就比磁带大一点,而且非常省电,可以用口香糖充电电池,也可以用外挂的电池盒。
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拆开后的样子,铝合金的外壳
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机械部分和电路部分完美的结合在一起
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磁带仓
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无刷电机和飞轮机构
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滑动开关
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舱门关闭系统
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拆下的磁头总成,包括了双声道磁头和压带轮
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压带轮特写
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90年代的制造工艺,机芯非常薄
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机芯侧面
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整机只有一个按钮,通过短按、长按、按多次决定功能
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拆下的电路板,所有功能都在这块主板上实现
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下中部位置电磁铁,控制机芯状态
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功放芯片
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电控芯片
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红外传感器和状态开关
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拆下的机械部分无刷电机和齿轮,皮带传动系统
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无刷电机特写
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两个齿轮颜色不同,是用来给红外传感器用来识别转速和转动圈数的
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主导轴
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械部分的特写
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漂亮的无刷电机,拆下的电机正面,这个电机的线圈不是漆包线而是刻蚀在电路板上的
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电机反面
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也就3-4毫米的厚度吧,所以机身才能那么薄,黑色的是外挂电池盒
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拆下电机后的机械总成
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状态选择轮
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拆掉了齿轮
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拆掉了齿轮
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拆掉齿轮机械总成正面
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一堆小螺丝
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拆下的各种齿轮
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电磁铁的衔铁,用来控制状态轮,达到正反播放和快进快退的功能
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传送带
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压带轮
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弹簧
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磁头特写,其实是4组线圈,播放正面用一组,播放反面时用另一组
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磁头反面,看焊接点四组线圈,一个公共端和外壳屏蔽
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电路板反面
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电路板正面
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总结
虽然是N年前的东西,但这做工国内的大多数生产厂家还要多多学习,最感叹的就是人家那时做的电机,电机的线圈印刷到了主线路板上,转动部分就是一块很薄的圆磁铁紧贴线路板,那些年我修过很多国产随身听,没有见过这种电机,这机最关键的是电池能听一天,时过境迁这机器大部分变电子垃圾,但是,奈何就这垃圾,我们都玩不溜,这是在网上淘的一台,留作收藏。