I don't have this exact player, I have the D2930 model which is the exact same one as in the picture, so apologies if this is incorrect. I have had quite a few problems (including this one) with it in all areas, and while I haven't exactly fixed this problem, I kind of know what's wrong and am able to get my CD's out of the player, albeit sometimes with a great deal of effort. I'm not sure if what happens to me is the exact same as what others get, but it seems quite similar.
Basically, around a third of all times that the CD I'm listening to finishes playing and skips to the next CD tray slot, it makes a slight buzzing sound and a few seconds after, stops. All of the buttons and functions of the whole player become completely unresponsive except for the power button and the disc eject button, which, whenever I try to press it, it makes the buzzing noise again and does the same thing, as if it's trying to come out but for some reason won't. The buzzing noise stops after about 10 seconds. This just endlessly repeats whenever I press the disc eject button, and all the power button does is turn the lights off and when I turn it back on I get the exact same issue. After being very frustrated for a while after this first happened to me, I had no idea what to do, but then realised that you have to try and pull it out yourself. But it's not just pulling it that you have to do, because simply pulling it out towards you doesn't exactly do it. You have to kind of jiggle the tray around as best you can until the tray kind of jumps or "clicks" into place with something, and this can be audibly heard and you can feel the tray do this when it happens. The tray then opens and I am able to take out my CDs.
I assume that this happens because something is faulty within the motor or whatever or simply wears easily (it is quite an old machine, though) and the mechanism which pushes the tray out does not exactly function properly. Watch out, though, because sometimes it can take a while for the tray to jump into place, and I remember having spent around 20 minutes one time repeatedly pressing the eject button and clawing my fingernails at the tray desperately trying to make it jump into place. Note that it's quite hard to move the tray around since there isn't really any part of the tray that sticks out which can be pulled/moved around, so a lot of the time I use my keys or something thin and long which I slip underneath the tray into the slight gap on the bottom and jiggle it around until it works.
This happens when the player is finished playing the current disc and then skips to the next one, and it does everything described. The other time that it occurs is simply when I insert a disc and press the button to close it, and once it closes it does the same. In that circumstance, it occurs on a little bit less than a 50/50 basis. You need to watch out for the buzzing noise, I'm not sure if this is the problem you experience and maybe it doesn't make the noise, but that's what happens with me. I've noticed that the problem usually occurs most frequently when it's skipping to the Disc 2 slot, so I've avoided putting my discs in the Disc 3 slot (because then the player will skip to Disc 2), but it can occur with the other disc slots. I've also just tried ejecting my CD once it's finished but before the player gets the chance to automatically skip.
It's not exactly a fix, and I imagine that you would have to dismantle the tray mechanism and change/repair the motor or whatever to actually fix it. I hope that this helps; again, if this isn't your problem or isn't the same machine model then I've really wasted my time, welp.
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Also sorry for the incredibly long answer post, just wanted to give as much detail as possible.
I don't have this exact player, I have the D2930 model which is the exact same one as in the picture, so apologies if this is incorrect. I have had quite a few problems (including this one) with it in all areas, and while I haven't exactly fixed this problem, I kind of know what's wrong and am able to get my CD's out of the player, albeit sometimes with a great deal of effort. I'm not sure if what happens to me is the exact same as what others get, but it seems quite similar.
Basically, around a third of all times that the CD I'm listening to finishes playing and skips to the next CD tray slot, it makes a slight buzzing sound and a few seconds after, stops. All of the buttons and functions of the whole player become completely unresponsive except for the power button and the disc eject button, which, whenever I try to press it, it makes the buzzing noise again and does the same thing, as if it's trying to come out but for some reason won't. The buzzing noise stops after about 10 seconds. This just endlessly repeats whenever I press the disc eject button, and all the power button does is turn the lights off and when I turn it back on I get the exact same issue. After being very frustrated for a while after this first happened to me, I had no idea what to do, but then realised that you have to try and pull it out yourself. But it's not just pulling it that you have to do, because simply pulling it out towards you doesn't exactly do it. You have to kind of jiggle the tray around as best you can until the tray kind of jumps or "clicks" into place with something, and this can be audibly heard and you can feel the tray do this when it happens. The tray then opens and I am able to take out my CDs.
I assume that this happens because something is faulty within the motor or whatever or simply wears easily (it is quite an old machine, though) and the mechanism which pushes the tray out does not exactly function properly. Watch out, though, because sometimes it can take a while for the tray to jump into place, and I remember having spent around 20 minutes one time repeatedly pressing the eject button and clawing my fingernails at the tray desperately trying to make it jump into place. Note that it's quite hard to move the tray around since there isn't really any part of the tray that sticks out which can be pulled/moved around, so a lot of the time I use my keys or something thin and long which I slip underneath the tray into the slight gap on the bottom and jiggle it around until it works.
This happens when the player is finished playing the current disc and then skips to the next one, and it does everything described. The other time that it occurs is simply when I insert a disc and press the button to close it, and once it closes it does the same. In that circumstance, it occurs on a little bit less than a 50/50 basis. You need to watch out for the buzzing noise, I'm not sure if this is the problem you experience and maybe it doesn't make the noise, but that's what happens with me. I've noticed that the problem usually occurs most frequently when it's skipping to the Disc 2 slot, so I've avoided putting my discs in the Disc 3 slot (because then the player will skip to Disc 2), but it can occur with the other disc slots. I've also just tried ejecting my CD once it's finished but before the player gets the chance to automatically skip.
It's not exactly a fix, and I imagine that you would have to dismantle the tray mechanism and change/repair the motor or whatever to actually fix it. I hope that this helps; again, if this isn't your problem or isn't the same machine model then I've really wasted my time, welp.