Im having problems with a CD 7000 I have. It wont play any cds. I've opened it up (because its easier to see whats happening) and discovered the following. If there is no cd in the tray it seems to be fine, the laser moves over and tries to focus and you can see the light from the laser and the motor spins. Basically it does all the things it should do. If you put a disk in it, the laser moves but nothing else. No focusing and no spinning. Its almost like its jammed when the disk is in. I have seen there are height adjustments and have downloaded the service manual but am hoping some one may have an idea before I start tinkering with it as I seem to be excellent at taking things apart and re-assembling them with numerous spare parts left over!