Casio QT-6600, Service Manual

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[ 19 ] REAR DISPLAY Contrast Adjustment
[Function]
Adjusts the contrast of REAR DISPLAY and writes the adjustment values on FLASH.
FLASH may be written up to 16 times. Writing more than 16 times results in an error. When such
an error occurs, you may follow the procedure “Clearing the contrast area” to re-initialize FLASH.
The contrast setting at the restart is the value written in the previous adjustment (“128” when
no value has been written). You may write the adjustment values by entering [ST] after an
adjustment. The contrast may be set at 256 increments within the range of 0 – 255.
[Operation]
Operation : 4 2 2 ST
When you launch the mode by using the above command, use the following keys to operate.
• Numeric key [1]: DARK key Current co1
• Numeric key [9]: LIGHT key Current contract -1
• ST: Finalize the entry (writes on FLASH and complete the sequence)
• ESC: Cancel adjustment (ends the mode)
[REAR DISPLAY]
ABCDEFGHIJKLMNOP
QRSTUVWXYZabcdef
[LCD]
REAR DISP 422
CONTRAST XXX
REAR CONTRAST Set value
REAR CONTRAST NG
REAR CONTRAST OVER
REAR CONTRAST ESC
REAR CONTRAST ERASE
END 422
LED display only. XXX indicates the contrast value.
An error is printed
The maximum times of writing is exceeded
When leaving the sequence without setting the contrast
When the contrast area is cleared
[PRINT]
REAR DISP 422
REAR CONTRAST Set value
REAR CONTRAST NG
REAR CONTRAST OVER
REAR CONTRAST ESC
REAR CONTRAST ERASE
END 422
[Clearing the Contrast Area]
FLASH may be written up to 16 times. If you wish to write more than 16 times, execute the
following command to clear the area and initialize FLASH.
1 0 4 2 2 ST