Philips CDM0 swing-arm cdmechanism
The Philips CDM0, as indicated by its model number, was the first CD drive mechanism to be developed. However, not all Marantz CD-63s, Marantz CD-73s and Philips LHH2000s were equipped with the Philips CDM0. The Philips CDM0 was replaced by the new and improved Philips CDM1 after a relatively short periode. The steel plate and some other parts used in the Philips CDM0 were found to be problematic during mass production.