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4.7 Operation Check of LCD (Function code 12)
<Function>
This function allows you to check whether the LCD on the control panel works normally.
<Operating Procedure>
(1) Press the [1] and [2] keys in this order in the initial stage of the maintenance mode.
The LCD shows.
(2) Press the [Start] button. Each time you press the [Start] button, the LCD cycles through
the displays shown at right. The Status lamp also changes from orange, red, to green
each time you press the [Start] button.
(3) Press the [Stop/Exit] button in any process of the above display cycle. The machine
beeps for one second and returns to the initial stage of the maintenance mode.
Fig. 7-5
Backlight on
Backlight on
Backlight off
Backlight off