User Guide
Table Of Contents
- Copyright
- Disclaimer
- Power Safety
- Getting started
- Getting to know your monitor
- How to assemble your monitor hardware (RL2450H / RL2455HM)
- Assembling your monitor with a height adjustment stand (RL2450HT)
- Getting the most from your BenQ monitor
- How to adjust your monitor
- Navigating the main menu
- Troubleshooting
![](/manual/benq/rl2455hm/user-guide-english/images/img-47.png)
49 Troubleshooting
Need more help?
If your problems remain after checking this manual, please contact your place of purchase or
e-mail us at: Support@BenQ.com.
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.