The following procedure can be used to clear the internal memory and reload the factory settings:
(CAUTION: All USER information will be lost. Be sure to back up any information you wish to keep.)
When using an A-70/A-90/EX with a VE-RD1, VE-JV1, VE-GS1, or VE-GSPro Voice Expansion board:
1. Power on while holding MANUAL.
2. Press ENTER.
When using an A-70/A-90/EX without a Voice Expansion board:
1. Power on while holding EDIT.
2. Press ENTER.