Use the following SysEx messages to turn a Performance part on or off on the JV-80:
PART# TO TURN A PERFORMANCE PART OFF
1- FO 41 10 46 12 00 00 18 15 00 53 F7
2- F0 41 10 46 12 00 00 19 15 00 52 F7
3- F0 41 10 46 12 00 00 1A 15 00 51 F7
4- F0 41 10 46 12 00 00 1B 15 00 50 F7
5- F0 41 10 46 12 00 00 1C 15 00 4F F7
6- F0 41 10 46 12 00 00 1D 15 00 4E F7
7- F0 41 10 46 12 00 00 1E 15 00 4D F7
8- F0 41 10 46 12 00 00 1F 15 00 4C F7
PART# TO TURN A PERFORMANCE PART ON
1- F0 41 10 46 12 00 00 18 15 01 52 F7
2- F0 41 10 46 12 00 00 19 15 01 51 F7
3- F0 41 10 46 12 00 00 1A 15 01 50 F7
4- F0 41 10 46 12 00 00 1B 15 01 4F F7
5- F0 41 10 46 12 00 00 1C 15 01 4E F7
6- F0 41 10 46 12 00 00 1D 15 01 4D F7
7- F0 41 10 46 12 00 00 1E 15 01 4C F7
8- FO 41 10 46 12 00 00 1F 15 01 4B F7
Owner's Manual: https://www.roland.com/us/support/manual_archive/