Operation Manual

25
- When touch pens are moved near each
other.
- When a pen is held at an angle while writing.
Power LED flashes red.
• The monitor has no signal input. If signal
input is connected, the monitor will restart(LED
is off) and display the picture.
The monitor makes a cracking sound.
• You may occasionally hear a cracking sound
from the monitor. This happens when the
cabinet slightly expands and contracts
according to change in temperature. This does
not affect the monitor’s performance.
FREQUENTLY ASKED QUESTIONS
Sound Issues
Check the following:
Be sure that sound volume is not low and sound is not muted. Ensure that the sound driver and its
application are installed properly. Check that your is not in Hibernate mode. Check cable
connections in case you use an external speaker.
Symptom: External microphone and auditory devices are not working
Check the following:
Make sure that the cables are properly and firmly connected. Check that the driver is installed. Check
sound settings and whether the system is muted or not.
Issues about turning on the system
Symptom: System does not start, LED is not on.
To be checked:
Be sure that AC cable is connected firmly.
Issues about writing with a pen
Symptom: Writing and drawing with a pen or stylus results in uneven or erratic lines.
To be checked: Be sure to use only the original pen, which is supplied with the monitor.