KORG DSM-1 DIGITAL SAMPLING SYNTHESIZER MODULE NOT WORKING – FOR PARTS – AS-IS

Unit powers up, but will not load disk, in the past it took a few tries for it to read disc, but now it's not reading at all, I'm really thinking the disc drive needs to be replaced (Haven't had any luck finding a replacement disc drive online). This is definitely a project for someone that is good at electronics ( If that's not you don't buy). 
      Do not have any warranty or guarantees and cannot be returned for a refund, credit or exchange of any kind. I did My best to fairly evaluate the condition of a non-working item and give an honest description of any symptoms (Could just need another Disc Drive, Not Really Sure). The unit came out in 1987 Korg DSM-1 Rack Version Of Korg DSS-1 Legendary Synth (Very Rare), There is an open box one on Ebay for $1,879.00 (You would save $1,629.00) Though this one is a little weather beaten overtime, discoloration, scratches, marks, the usual wear for a Vintage item. (See Pictures)

(This unit is for the rare musicians that are left & already know what this is)

The Korg DSM-1, released in 1987, is a rack-mounted variant of the DSS-1, boasting a memory capacity of 1Mb—four times greater than its predecessor—and featuring a quicker operating system, a high-density disk drive, individual outputs, and a multitimbral mode. While it doubled the polyphony to 16 notes (which reduces back to eight when layering two oscillators for performances), it lacks the DSS-1's digital delays, dual oscillator patches, oscillator sync, and filter resonance that largely defined the original's unique sound. Nonetheless, it maintains compatibility with DSS-1 disks.