Horner APG QX751 OCS - Manual (Page 50)

CH.9 MAN0890-02-EN
August 20, 2009 Page 50 of 96 ECN # 979
9.4
Touch screen calibration
The touch screen is calibrated at the factory and rarely needs modification. However, if actual touch
locations do not appear to correspond with responding objects on the display, field adjustment is
available. To access the field adjustable touch screen calibration dialog, press and hold both the SYS
and F1 key for longer than 2 seconds with the QX751set to, Mode: Idle, and a dialog similar to figure 9.2
should appear. Thereafter, use a plastic tip stylus and follow the dialog instructions.
Note that special system keys may be locked out from user access. If the SYS-F1 combination
does NOT respond, verify that the system menu’s Set Fkeys sub-menu’s parameter SYS_Fn is
enabled. Be certain the system Mode is not set to Run as this will inhibit Calibration operation.
Figure 9.2 – Touch Calibration Screen