What's inside the world's first portable CD player, the Sony D-50 (D-5) Discman?
1984 vintage!
Also a look at the laser beam splitter optics, and the gorgeous service manual.

Service Manual: http://freeservicemanuals.info/servic...

HIres photo: https://www.eevblog.com/2016/03/29/ee...

Nobutoshi Kihara https://en.wikipedia.org/wiki/Nobutos...
MC Frontalot Zero Day Album: http://frontalot.com/index.php/?page=cd4
Forum: http://www.eevblog.com/forum/blog/eev...

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