JRC JLN-720, Instruction Manual

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4-7 Chapter 4 Menu Settings and Configurations
4
3.
Touch the center of the target marks at the four corners of the screen.
Touch the center of the target marks at the four corners in the order from 1 to 4.
The following screen is displayed.
4.
Draw a graphic or a character for validation by touching the screen.
5.
Confirm the graph or the character:
Calibration is completed. Close the [TOUCH CAL] menu by touching the [ACCEPT] button.
The touched position does not match the position of the graphic or character:
Restart calibration. Touch the [AGAIN] button and start again from step 2.
Note: If the calibration would take over one minutes, after return to the normal screen the
“DISPLAY COMM FAIL” alert would occur. This is not the system malfunction.