Yamaha Corporation of America.

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Sequencers & Data Filers

QY100 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. This can be done by performing a "Bulk Dump" to an external MIDI storage device or saving data to a Smart Media card.


Reference: Data Backup - Owner's Manual, p. 250, p.258
    1) Power on while pressing and holding down the [AMP SIMULATOR] , [PARAMETER] and [SONG] buttons simultaneously. The *QY100 TEST* diagnostics screen will appear.

    2) Release the buttons.

    3) Press the [F3] Function button (third grey button from the top on the right side of the display) to select '[F3]:Factory Set'. The screen will temporarily display '18: Factory Set OK' and then return to the main Song mode screen. The unit is now ''reset''.