Yamaha Corporation of America.

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S Series

S90 Factory Reset Procedure

WARNING: All user stored data will be deleted. If the current settings and data are not expendable, create a backup before executing the Factory Reset procedure.  

1) Press the [UTILITY] button.

2) Press the [JOB] button.

3) Press the [ENTER] button.

4) Press the [INC/YES] button

 

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