Roland SP-404MKII Manual page 81

2. Press the bank [A/F]–[E/J] buttons.
Select a bank to delete.
3. Press the [VALUE] knob.
The patterns in the selected bank are deleted.
You can't restore a pad's pattern after it has been deleted.
If you want to keep your data or make sure it doesn't get accidentally modified, we recommend that you follow the steps in
"Backing up Your Data (BACKUP)(P.120)" to create regular backups.
Combining Samples to Create a Pattern (PATTERN SEQUENCER)
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