44 Troubleshooting
No sound can be heard from the connected external speakers:
• Remove your headphone (if the headphone is connected to the monitor).
• Check whether the headphone jack is properly connected.
• If the external speakers are USB-powered, check whether the USB connection is OK.
• Increase the volume (volume may be muted or too low) on the external speakers.
The light sensor of the monitor does not work well.
The light sensor is located at the front bottom of the monitor. Please check:
• If the Eye Protect function is set to ON. Check Ergonomics > Eye Protect.
• If there are any obstacles in front of the sensor that keep the sensor from detecting the light
properly.
• If there are any objects or clothing in bright colors in front of the sensor. Bright colors
(especially white and fluorescent colors) reflect light and the sensor cannot detect the main
light sources.
The ECO sensor of the monitor does not work well.
• The ECO sensor is located at the front bottom of the monitor.
Check if there are any obstacles in front of the sensor that keep the
sensor from detecting your presence properly.
• The colors and the materials of your clothes may affect the
detection. Adjust the sensor range if needed. See Sensor Range on
page 41 for more information.
• Adjust the distance between you and the monitor.
If none of the proceeding actions works, it is probably because the
materials of your clothes are unique and cannot be detected by the ECO sensor. Please be noted
that this is neither a manufacturing defect nor is the sensor damaged. You should turn off the ECO
sensor for now in
Eco > ECO Sensor.
Need more help?
If your problems remain after checking this manual, please contact your place of purchase or
