I've repaired about 10 type Bose AWRC3x (the radio/cd model with lift up lid and top controls). If the cd won't play or skips, try cleaning the lens VERY carefully with a cotton bud with some isopropyl alcohol. Let it dry then try again. This will help in about 1/3 of cases.
After that, a new laser unit is needed. They cost around 15 pounds,30 dollars, (Type SFP100s with 13 pin connector made by Sanyo). You need to have some electronics experience to take the case to bits to get the laser deck out, change the cd laser and reassemble. Basically, DISCONNECT THE POWER! Remove the 3 screws on top, turn over and carefully prise the front of the base away from the top cover with a table knife or similar. Lift off the top cover - be careful with the lid ribbon! The deck can be disconnected from its ribbon cable and wired connector very carefully. Take the deck to bits and fit the new laser head (take photos if you think it will help). Remember to unsolder the shorting 'blob' of solder which protects the new laser from static till its fitted.
On the bright side, there is no tracking etc to set up, that's all automatic so usually they work like new with a new laser fitted. I have to say this is the weakest feature on the Bose CD radio, the actual electronics rarely gives trouble.
Hope this helps Steve O'Donnell
Steve ODonnell
March 2008