40 Chapter6Troubleshooting
6-4. Touch panel problems
Problem Possible cause and remedy
1. Touch operation is disabl ed. • CheckthatthemonitorandPCareconnec tedwithaUSB
cable.
• CheckthatthepowercordofthemonitorandPCis
connectedtoagroundedmainoutlet.Failuretoground
theequipmentmayresultinmalfunction.
• Performtouchpanelsensitivit yadjustmentusing
TPOffset.
2. Cursor positi on is not correct. / Cursor
jumps.
• ConnectthemonitortothePCwiththecab leindicatedin
theSetupGuide.Thetouchpanelmaynotworkcorr ectly
ifaconversionadapterisused.
• Turnoffandonthemonitor.
• Calibratethescreenagain.
• CheckthatthepowercordofthemonitorandPCis
connectedtoagroundedmainoutlet.Failuretoground
theequipmentmayresultinmalfunction.
• Performtouchpanelsensitivit yadjustmentusing
TPOffset.
• Changingthepositionorangleofthemonitormayc ause
thecursortojump.
• Keepmetalsawayfromthepanelsurface.
• Ifthetouchpanelisdirty,thetouchpanelmaynotoper ate
properly.RefertotheUser’sManualofthemonitorto
cleanthetouchpanel.
• Thesprayforpreventingstaticelectricit ymayinuence
thesensitivityofthetouchpanel.
• Donottouchthetouchpanelfor5secondsaf terthePC
startsup,afterturningonthemonitor,orafterc onnecting
theUSBcable.Touchingthetouchpaneltoosoonmay
causeincorrectcursorposit ioningordisabletouch
operation.Ifthisoccurs,eitherleavetheto uchpanel
untouchedforapproximately2minutesorturnthemoni tor
offandonagain.Iftheproblempersists,c alibratethe
screenagain.
• Changingthescreensizeofthemonitormaycausethe
cursorpositiontobecomemisalig ned.Executecalibration
againafterchangingthescreensize.
3. The cursor does n ot appear at the touched
position and instead is d isplayed at a
point-symmetric po sition with respect to
the center of the screen.
• Calibratethescreenagain.
4. Cursor is jitt ery. / Drawing lines are not
straight and smooth.
• CheckthatthepowercordofthemonitorandPCis
connectedtoagroundedmainoutlet.Failuretoground
theequipmentmayresultinmalfunction.
• Performtouchpanelsensitivit yadjustmentusing
TPOffset.
• Theinuenceofmetalmaycausejitter ycursor.
• Whenmultiplemonitorsareplacedclos etoeachother,
leavespacebetweenmonitors.
5. (If the OS being u sed is Windows 8 /
Windows 7)
Calibration does not wor k correctly.
• Resetthetouchpaneltothestatebeforecalibrati on(by
clicking“Reset”inthe“Di splay”tabofthe“TabletPC
Settings”windowaccessiblefromt heWindowsControl
Panel)andthencalibratethetouchpanelagain.