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ronald30Aug 15, 2025
What to do if my Dahua Technology LM49-S400 has no image or sound?
- KKelli AndersonAug 15, 2025
If your Dahua Technology Monitor is showing no image or sound, try switching to another channel or input to resolve the issue.
What to do if my Dahua Technology LM49-S400 has no image or sound?
If your Dahua Technology Monitor is showing no image or sound, try switching to another channel or input to resolve the issue.
Why is the image on my Dahua Technology Monitor inferior but the sound is normal?
If you're experiencing a poor image quality but the sound is normal on your Dahua Technology Monitor, the first step is to check the video signal line to ensure it's properly connected.
How to fix inferior sound on Dahua Technology LM49-S400 with normal image?
If the sound quality is poor while the image is normal on your Dahua Technology Monitor, check if the audio signal line is properly connected.
Why does my Dahua Technology LM49-S400 have a poor signal?
A poor signal on your Dahua Technology Monitor might be due to interference from other electric appliances. Try to identify and remove any potential sources of interference.
What to do if there is rung stripe in image on Dahua Technology LM49-S400 Monitor?
If you notice rung stripes in the image on your Dahua Technology Monitor, verify that the system is set up properly.
How to fix a vague image on Dahua Technology LM49-S400 Monitor?
If the image on your Dahua Technology Monitor appears vague, try adjusting the fine tuning settings.
How to remove interfering lines in image on Dahua Technology Monitor?
To address interfering lines in the image on your Dahua Technology Monitor, adjust the contrast ratio setting.
How to improve inferior color on Dahua Technology LM49-S400 Monitor?
To improve inferior color display on your Dahua Technology Monitor, adjust the color setting.
How to fix twisty image on Dahua Technology LM49-S400 Monitor?
If the image on your Dahua Technology Monitor appears twisty, try adjusting the color setting.
General| Screen Size | 49 inches |
|---|---|
| Resolution | 3840 x 1080 |
| Aspect Ratio | 32:9 |
| Response Time | 8 ms |
| Contrast Ratio | 3000:1 |
| Connectivity | HDMI, DisplayPort, USB |
| Refresh Rate | 60 Hz |
| Viewing Angle | 178°(H)/178°(V) |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
Crucial safety precautions for using and maintaining the monitor to prevent injury or property damage.
Guidelines for product placement and environmental conditions to ensure optimal performance and longevity.
Visual description of the monitor's physical design and components.
Key technical specifications and advantages of the UHD LED monitor, such as image quality and response time.
Adjust color temperature, aspect ratio, noise reduction, and picture mode for optimal visual output.
Configure balance, auto volume calibration, surround sound, EQ, and sound mode for audio preferences.
Customize OSD language, factory reset, software updates, OSD transparency, and auto sleep features.
Adjust H-position, V-position, clock, phase, and auto-adjust for precise image alignment.
Select the input source, such as VGA, HDMI, or other available channels.
Instructions on safely cleaning the monitor housing and screen using appropriate materials.
Guide to diagnose and resolve common issues with the monitor using a problem-solution chart.
