Jeff,

The software is not Futaba PCM relevant.... The Futaba PCM was an OEM compatibility issue that was realized after the first release of any revision v1.04 Hitec digital servo. Later servos were updated with a new component that eliminated the problem. Existing servos can be updated free of charge by Hitec Service.

The date codes and identifying symbols are not cast in stone and only offer an educated guess on the software/evolution/origin of our servos.

From 2002 through 2005 all servos were revision v1.03 and used a like numbered software revision. In 2005 Hitec released revision v1.04 servos and these are currently available to date. V1.04 servos must be programmed with a HFP-10 with the v1.04 software.

I would update all my servos with your new HFP-10 by performing a “RESET”, this will load the latest software revision available to date. As I mentioned previously there is no advantage to updating a v1.03 servo with v1.04 firmware, it will only allow you the peace of mind of knowing that you have the most current software available.