Today’s Random Repair Question!
I have an ancient (late 80’s/early 90’s) Pioneer CD player. It takes a cartridge that holds 6 CDs, which are placed with the printed side down and the playable side facing up. It still works!
Yesterday the CD in position 4 wouldn’t play. The tray mechanism stayed stuck and therefore the cartridge wouldn’t release. Fixed that with unplugging power cord, waiting, replugging.
I checked the disc to make sure it was okay. I never touch the playable surface of CDs or LPs. I’m OCD about it.
Noticed dots all along the outer edge - circled in red in the pic. It’s kind of oily. Cleans off easily with isopropyl alcohol. I have never opened the player or sprayed anything into it.
These dots were evenly spaced, suggesting as the CD spins, something is smudging the surface. This mostly happened to CDs that were in position 4 - the middle of the cartridge. Other positions may have had a random spot here or there.
My question for the mechanically minded among us: Where would you begin in an attempt to fix this?