1.  Turn the Power on While holding down [OSC2 SYNC] [-12dB/-24dB] and [FILTER TYPE]
2. Test mode is now in operation and the memory test begins.

The Tests are as follows

1. Memory Test
2. [1] MIDI Test
3. [2] Switch and LED test
4. [3] Adjusting Bender and MOD
5. [4] Adjusting Ribbon sensor
6. [5]  A/D test
7. [6] Hold pedal test
8. [7] LCD test
9. [8] Sound Test

Exiting a test

Press the number button to quit the current test and start another test.
For the SW&LED test press the number button while holding down The [WRITE] button.

Exiting the test mode

(When the test is SW&LED, exit it)
Press [SHIFT/EXIT], Then "Are you sure?' is displayed.
Press [WRITE] to exit the test mode, then factory data will be loaded.