NCR RealPOS 70 - Page 84

3-22 Chapter 3: Touch Screen Calibration – Windows (MT 7.12)
12. AdialogboxasksifyouwanttoTest,Accept,orCancelthis
calibration.SelectTest.
25409
You can test the linearization
by touching the 16 verification targets.
Do you want to proceed?
Yes No

5. SelectYestocontinue.
6. Touchthecenteroftheyellowtarget.
25410

7. Ifyousuccessfullytouchthetarget,itturnsgreen.Ifyourtouch
missesthetarget,thetargetturnsredandreturnsapercentage
errornumber.Ifthelinearizationisnotwithinacceptabletolerances
(nogreaterthan1–15%)thenrepeatthelinearizationprocess.
8. Performthe3‐Point
Calibrationprocedure.