MHC-GN999 DS DVD System DEST ERROR?

Dear Sir:
How can I fix my Sony Stereo MHC-GN999 DS.DVD Component system Faults
I will press the DVD Button on the Unit but Displaying "PLEASE WAITH" after few second
the disc tray dose not Open nd "DEST ERROR" appears in the display. what is the fault I will change (IC 106) L64 EEPROM 8pin chip in Video card not solve fault. same problem displaing "DEST ERROR".
but Radio,Casset's working only problem DVD section
Please help help.....
E-mail ID : Fazmeel@gmail.com

fazmeel