AVer M90UHD, User Manual, Page: 50 / 361

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Troubleshooting
This section provides many useful tips on how to solve common problems while using the
AVerVision M90UHD.
There is no picture on the presentation screen.
1. Check all the connectors again as shown in this manual.
2. Verify the setting of the display output device.
3. If you are presenting from a notebook or computer through the display output device, check the
cable connection from computer RGB (VGA) output to RGB input of AVerVision M90UHD and
make sure AVerVision M90UHD is in PC Mode.
4. For HDMI display output, a delay occurs while waiting for both the display device and M90UHD to
sync up. Wait for around 4 to 7 seconds until you see the camera image on the screen.
The picture on the presentation screen is distorted or the image is blurry.
1. Reset all changed settings, if any, to the original manufacturer default setting. Press DEFAULT on
the remote or select Default in Basic tab OSD menu.
2. Use the Brightness and Contrast menu functions to reduce the distortion if applicable.
3. If you discover that the image is blurry or out of focus, press the Auto Focus button on the control
panel or remote control.
There is no computer signal on presentation screen.
1. Check all the cable connections among the display device, AVerVision M90UHD and your PC.
2. Connect your PC to the AVerVision M90UHD first before you power on your computer.
3. For notebook, repeatedly press FN+F5 to toggles between display modes and display the
computer image on the presentation screen. For different command, please refer to your laptop
manual.
The presentation screen does not show the exact desktop image on my PC or
Notebook after I toggle from Camera to PC mode.
1. Return to your PC or Notebook, place the mouse on the desktop and right click, choose
“Properties”, choose “Setting” tab, click on “2” monitor and check the box “Extend my Windows
desktop onto this monitor”.
2. Then go back one more time to your PC or Notebook and place the mouse on the desktop and right
click again.
3. This time choose “Graphics Options”, then “Output To”, then “Intel® Dual Display Clone”, and then
choose “M Notebook”.
4. After you follow these steps, you should be able to see the same desktop image on your PC or
Notebook as well as on the presentation screen.
AVerVision M90UHD can’t detect the inserted USB flash drive.
Make sure the USB flash drive is properly inserted and in correct format. Only FAT32 is supported.