The disk drive on my crosley cr704 wont open. When I change it to the CD mode, the display lights up with the two - - and makes a noise like the motor is trying to work or something. I push the open/close button and it just changes the noise like the disk drive is going in the other direction but not moving. I tried holding the open/close button in hopes it might change the outcome but nothing works. Are there replacement parts to make the disk drive work or maybe a replacement drive I could install? or am I possibly missing something?