Cd wont eject.
I was having the same issue with my KD-S5050. I also tried the CD eject lock reset with no results. By using the following steps I was able to reset my CD player and it is working properly again.
On page two of the user manual is shows how to do a full reset of the cd receiver.
While holding SEL (Select), press ATT (Standby/On Attenuator) for more than 2 seconds. This will reset the built-in microcomputer.
NOTES: ? Your preset adjustments ? such as preset channels or sound adjustments ? will also be erased. ? If a CD is in the unit, it will eject when you reset the unit. Be careful not to drop the CD.