Yamaha PortaTone PSR-550 Owner's Manual page 105

13
Press the [NEXT] button to display the Clear screen.
14
Press the [+/YES] button to execute the Clear operation.
To abort the Clear operation, press the [-/NO] button.
15
Press the [RECORD] button to exit from the Record mode.
If you've selected a certain section (other than "ALL sect"), see the explanation
on leaving the recording mode on page 100.
The Clear operation is completed...
Style Recording
105