【Junk】 Famicom Disk System Unit Only

This is the disk drive unit from an early model Twin Famicom purchased at a recycle shop with a disk read error. I was going to discard it after swapping it with a working unit, but I learned that some people might be able to repair it as a valuable piece of gaming history, so I'm offering it to someone who can restore it.
* When a disk is inserted, it makes a durururi! sound and the read operation begins (the Famicom display appears), and the screen with Mario and friends running is displayed.
* Since this was a used Twin Famicom, it's unknown if the unit had already been replaced.
Some typos and sentences have been corrected.