RC-505: HOW TO ACTIVATE MIDI START/STOP
Make sure your SYSTEM MIDI SETTINGS are CORRECT:
1. Press [SYSTEM] button 5 times - SYS: MIDI RX CH: set to 1 (or desired setting)
2. Press [RIGHT ARROW] > - SYS: MIDI OMNI: set to ON
3. Press [RIGHT ARROW] > - SYS: MIDI TX CH: set to RX (or desired setting)
4. Press [RIGHT ARROW] > - SYS: MIDI SYNC: set to AUTO(AUTO for SLAVE, INTERNAL for MASTER MIDI CLOCK)
5. Press [RIGHT ARROW] > - SYS: MIDI SYNCSRC: set to MIDI
6. Press [RIGHT ARROW] > - SYS: MIDI PC OUT: set to ON
CREATE ASSIGN 1: MIDI ALL START/ALL STOP
7. Press [MEMORY] button 4 times - set ASSGN1 SWITCH to ON
8. Press [RIGHT ARROW] > - ASSGN1 SOURCE: set to SYNC START/STOP
9. Press [RIGHT ARROW] > - ASSGN1 SRC MODE: set to TOGGLE (or MOMENTARY if necessary)
10. Press [RIGHT ARROW] > - ASSGN1 TARGET: set to ALL START/STOP
11. Press [WRITE] twice to WRITE/SAVE your settings.
NOTE: MEMORY SETTINGS are not global and changes must be WRITE/SAVED per MEMORY VALUE/LOCATION.
If you want to have multiple MEMORY VALUE LOCATIONS with the same settings SAVED then make a TEMPLATE MEMORY PATCH and WRITE/SAVE it to other MEMORY LOCATIONS so you have the same settings and functionality. Also see RC-505 OWNER'S MANUAL Page 29
RC-505 OWNER'S MANUAL AND SUPPLEMENT:
https://www.boss.info/us/products/rc-505/support/