LevelOne KVM-0831 Manual - Page 31

7. Troubleshooting 1. Ensure that all cables are well seated. Label all of cables with the number for each respective computer to avoid confusion. 2. Don't press any key on the keyboard while the selected computer is booting up. Otherwise, it might cause the keyboard error or keyboard is not detected at PC side. 3. If the keyboard or mouse does not work when connected to the KVM switch, please make sure the keyboard or mouse works when directly plug into the computer. If the problem persists, please try another keyboard or mouse. 4. If the mouse doesn't work in Auto Scan mode, you can press any key on the keyboard or the front button on the face plate for returning standard mode and then use the Keyboard or Mouse again. 5. If the Mouse is not detected during PC boot up, please make sure that the USB mouse works when directly plugged into the computer. Please avoid moving the mouse or pressing the mouse buttons when switching ports. 6. If you forget the password to access the KVM switch, please contact your supplier. 7. No video signal is displayed on the remote monitor: A. Please check if the connectors of VGA cables and Cat.5 cables are loosed or disconnected. Notice that the VGA cable must be connected to computer during boot up process. B. Please check if the power adapter is connected to extender. 8. If the video signal is foggy or un-cleared on the screen, please check if the VGA connector is well connected or the VGA resolution is too high for the length of cable being used. If the problem happened at VGA resolution, to shorten the Cat.5 cable length or reduce VGA resolution. It is highly recommended to use Cat.6 cable when the connection is longer than 150 meters. 9. The PS/2 keyboard or PS/2 mouse cable length is 30 meters maximum. The USB keyboard or USB mouse cable length is 5 meters maximum. V1.2 26