Help on Esoteric P-500 transport

I have an Esoteric P-500 transport that has been lightly used since the mid 90. Recently, it began to skip on CDs that were working fine previously. Cosmetically, it is in great condition. I still have the remote and box. I am not sure what to do with it now. Does any one know what might be the problem ? Is it repairable considering that it is at least 14 years old ? What would be the cost to fix it ?
Thanks for all your help.