Teufel IP 42 CR CD-Drive repair

ID: 177943

Description: The CD-Drive of my Teufel Stereo had the...

Steps:

1. Disclaimer: This Manual is intended for professionals only.
2. Risk of electric shock! This device contains exposed capacitors. It might carry a voltage even if unplugged. Always check the device to be free of voltage before working on it.
3. Risk of eye damage! This device contains an IR-Laser. It is only considered Class 1 when the device is fully closed. Do not power on the device when opened.
4. Read the safety instructions on the device and inside the device's user manual. Proceed at your own risk.

5. Turn of the device and unplug it.
6. Unplug all other cables like speakers and other external devices.
7. (4x) Remove the case screws at the back
8. (4x) Remove the case screws at the left and right side

9. Slightly bend the lower parts of the outer shell outwards
10. Lift up the outer shell
11. Pull the outer shell back and fully remove it

12. Check the device for any remaining voltage using a multimeter. Only proceed if it's safe. If you're unsure on what to do, close the device and consult a professional.
13. The CD-Drive is embedded tightly into the device. This step helps to create some space for removing it later.
14. (2x) Remove the screws at the front left
15. (2x) Remove the screws at the front right
16. (2x) Remove the screws at the front bottom

17. Now pull out the front a little (~1-2cm) on both sides
18. The front is connected to other circuit boards by some cables. Do not pull it out too far and do not use any force
19. When reassembling: Make sure that the cables on the right side of the device are not getting pinched.

20. (2x) Remove the screws from the laser cover
21. Lift the laser cover off the CD drive and set it aside
22. From this step on, the laser lens is exposed! To avoid damaging it, do not touch it with your fingers or any objects.

23. Carefully slide out the CD tray
24. The first few centimeters can be very stiff. If this is the case, try to gently push the mechanism under the drawer to the right, or turn the drawer motor a little.

25. (2x) Carefully release the clips of the CD tray by pushing them inwards with a tool
26. Pull out the CD tray completely and set it aside
27. Reassembly: The CD carriage has a guide on the underside for a plastic pin of the underlying mechanism. Slide this pin so that it fits into the guide.
28. If you want to replace the toothed drive belt of the CD motor, you can do this now.

29. (4x) Remove the mounting screws from the CD drive
30. It is best to use a magnetic screwdriver to remove the screws
31. Carefully take out the CD drive by pushing it forward slightly and slightly angle the left side upwards. Be careful not to damage the cables in the upper left corner!
32. Attention: The disk drive is still connected to the circuit boards by some wires. Try not to damage them.

33. Release both cables from their cable guides under the CD drive
34. Carefully remove the drive and place it next to the stereo.
35. If necessary, you can disconnect some or all of the cables from the CD drive, completely separating the drive from the device. However, since the plugs were glued on my device, I can only recommend this to a limited extent. Be careful with the ribbon cable, it is easy to damage!

36. (2x) Remove the screws on the underside of the drive at the back
37. Hold the reader module firmly, otherwise it will fall out by itself.

38. (2x) Remove the plastic holding pins from the gears. To do this, gently press against the pins from the back of the drive and pull them out from the other side.
39. This may take a lot of force. Be careful not to break the holding pins when loosening them.
40. Remove the plastic sled by sliding it away from the gears and lifting it out.
41. In my case the plastic sled was stuck and prevented the CD drive from closing completely. If you have the same problem, you can lubricate it with a little silicone grease at the contact points.
42. Now you can remove both gears and clean them of dirt, as well as lubricate them with silicone grease.
43. Do not lubricate the teeth of the gears themselves, but only the contact points with the housing and the inside of the axes of rotation.
44. When reassembling: a blue switch is located under the carriage. It must be pressed into the correct position by hand when the carriage is reinstalled.