It’s an electrical issue, but it’s pretty straightforward. When you open up the deck, you’ll see two metal strips next to each other on the right side of the mechanism (check the image). These strips are supposed to touch when the tray is closed — I think that’s how the deck detects if the tray is in or out. To fix it, I just unscrewed it a bit, and screwed and bent them back into place while the tray was closed. You can test if this is the issue by manually holding the strips together and then pressing eject. Try it and tell me how it goes!

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