Toshiba B-EX Series Key Operation Specification page 147

PAUSE KEY PRESS TEST
UP KEY PRESS TEST
RIGHT KEY PRESS TEST
DOWN KEY PRESS TEST
LEFT KEY PRESS TEST
MODE KEY PRESS TEST
CANCEL KEY PRESS TEST
ENTER KEY PRESS TEST
END DISPLAY
Press the [PAUSE] key.
Press the [UP] key.
Press the [RIGHT] key.
Press the [DOWN] key.
Press the [LEFT] key.
Press the [MODE] key.
Press the [CANCEL] key.
Press the [ENTER] key.
Press the [ENTER] or [CANCEL] key to return
to the upper-level menu.
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