NCR 7454 - Page 88

2-38 Chapter 2: Hardware Installation
3. Holdyourfingerfirmlyon thetargetfortwoseconds,thenliftitoff
quickly.
4. Verifythatthecalibrationwassetaccuratelybef oremakinga
servicecall.Performthecalibrationagainifnecessary.
• Ifcursorisnotstable,orfalsetouchesaresuspected,runtheNoise
Check
UtilityfromtheTouchwareControlPanel(Windows)or
fromtheMicrocal(DOS)program.Choosetherecommended
frequency(theonewiththelowestnoiselevel).Thisshouldalsobe
doneifthetouchscreenisstillnotcalibratedafteroneattemptto
recalibrateit.
Microcal:
a. Setthevideoresolution.Goto
theToolsmenu,Video.Select
800 x 600 256 colors.
b. Gotothe
Toolsmenu,selectNoise Check.
c. Followtheinstructionprompts.Choosethefrequencywiththe
lowestnoiselevel.
TouchwareControlPanel:
a. Gotothe
CursortabandpressStabilize Cursor.
b. Choosetherecommendedfrequency.
• TheEdgeAdjustshouldbeturnedoffifusingWindows.
TouchwareControlPanel:
a. Gotothe
Cursortab.Edge Adjustmentshouldbeturnedoff.
Applicationsoftwarecanpossibly generateadialogboxfromthe
TouchDriver,withthemessagethatthetouchscreenneedstobere‐
calibrated.Ifthescreenappearstobeworkingnormally,thenthis
messagecanbeignored.Thereisacheckboxlabeled, Do not show
this message again.
Makesurethisboxischecked.