I have a PS3 Slim 120 GB with a 450 KEM AAA Drive/Laser.
my problem is: the darn thing keeps ejecting, even if there aren't any discs loaded.
It ejects with an interval of +/- 10 seconds, so it seems like the eject button force mode keeps going at it, but the button isn't stuck, nor is it the drive (I swapped it with 3 others)
I also tried disconnecting the eject/power PCB, but with no prevail.
Since I couldn't find any similair problem online, I figured I just post it here.