System Maintenance
When it is desired to set the current value, the operation is completed by pressing the "Menu" key,
and the display returns to the self-diagnosis screen.
To repeat the setting, or to stop touch panel calibration, press the Return key.
When the Return key is pressed, a + mark is displayed in the first position for performing calibration.
When this display appears, by pressing the Return key again, the display returns to the
self-diagnosis screen.
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SM