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  | 8. Troubleshooting | 
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8.2 Handwriting Device  | 
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Symptom | Cause | Solution | 
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No power  | • USB cable is disconnected from  | • Connect USB cable to computer  | 
  | computer.  | correctly.  | 
  | • Computer power is not turned on.  | • Turn on power to computer.  | 
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No response when operated.  | • USB cable is disconnected.  | • Connect USB cable correctly.  | 
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USB cable is not recognized by  | • USB port may not be operating due  | • Consult computer manufacturer for  | 
computer when connected.  | to some problem with computer or  | BIOS and driver software updates where  | 
  | Windows operating system.  | applicable.  | 
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Cursor position is far from that  | • A screen resolution other than  | • Change the driver software settings as  | 
of pen tip on screen.  | 1280x768 is being used. Or  | required.  | 
  | resolution has been changed.  | 
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  | • The plasma display’s screen display  | 
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  | size setting has been changed.  | 
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  | • Driver software is not installed  | • Install driver software correctly.  | 
  | properly.  | 
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Cursor position diverges slightly  | • The plasma display’s screen  | • Use the plasma display’s calibration  | 
from that of pen tip on screen.  | display position has shifted.  | mode to adjust the vertical and  | 
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  | horizontal position.  | 
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Cursor position diverges from  | • The plasma display’s AUTO SET  | • Depending on the image, slight  | 
pen after initial setting.  | UP screen position adjustment  | divergences can be manually corrected.  | 
  | has been reset.  | 
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  | • Plasma display’s “MASK CONTROL”  | • Set “MASK CONTROL”, “ORBITER” to  | 
  | or “ORBITER” is set to “ON”.  | “OFF”.  | 
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The special dedicated pen does  | • Battery is depleted.  | • Check the LED indicator, and if it does  | 
not respond.  | 
  | not light brightly, replace battery.  | 
  | • Insufficient pen tip pressure is  | • Press the tip to the screen with  | 
  | being used so that the pen tip  | sufficient pressure to turn on the pen tip  | 
  | switch doesn’t turn on.  | switch.  | 
  | • The holes in rear end of pen are  | • Do not cover the holes in rear end of  | 
  | blocked.  | pen.  | 
  | • The pen is being used outside of  | • Use only within the proper onscreen  | 
  | its effective range.  | usage range.  | 
  | • The unit is receiving ultrasonic  | • Do not place any device near the unit  | 
  | influence from other device.  | that issues ultrasonic waves.  | 
  | • You are wearing gloves while  | • Remove gloves.  | 
  | holding the pen (pen’s ultrasonic  | 
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  | signals are being absorbed).  | 
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  | • Driver software is not installed  | • Install driver software correctly.  | 
  | properly.  | 
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  | • Driver software setup is incorrect.  | • Check driver setup and reset if appropriate.  | 
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Cannot input with finger.  | • Mode selector switch on unit’s  | • Set switch to “NORMAL”.  | 
  | rear is set to “PEN”.  | 
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No response to input or can’t  | • User touched screen during boot  | • Disconnect USB connector and  | 
write in some places.  | process (during display of  | reconnect.  | 
  | message “Now setting....”)  | 
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  | • Dirt or other object blocked infrared  | • Remove dirt or other obstruction;  | 
  | signal filter, blocking signal.  | disconnect and reconnect USB connector.  | 
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Computer remains in power  | • Main unit will not operate when  | • Change   | 
saving mode even when  | computer is in   | appropriate.  | 
operations are performed.  | mode.  | 
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“The device is not connected.  | • USB cable is loose or has been  | • Connect USB cable securely.  | 
The device is disabled.”  | disconnected.  | 
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message appears.  | 
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