1. Insert cartridge #3 into slot
2. Press [MEMORY PROTECT INTERNAL] button. The screen will display MEMORY PROTECT INTERNAL ON (default is on when the DX7 is powered up)
3. Press the [-1/NO] button to toggleMemory Protect to OFF
4. Press [FUNCTION]
5. Press the #[6] button for LOAD. The screen will display LOAD MEMORY -ALL OF MEMORY?
6. Press [+1/YES]. The screen will display LOAD MEMORY ARE YOU SURE?
7. Press [+1/YES]. Screen will display COMPLETED
8. Press [MEMORY PROTECT INTERNAL] button again
9. Press [+1/YES]