PE Conversion Instructional Video- Prophet '08 Keyboard 29 April 2022 08:41 Here's a step by step instructional video for the Prophet '08 Keyboard PE conversion self-install, available in 1080p HD. Serial numbers below 1680 require the main board modification, while serial numbers above 1680 do not: Related articles Prophet '08 Keyboard Key Replacement Guide PE Conversion Instructional Video- Prophet '08 Module OB-6 Keyboard Troubleshooting