35 TroubleshootingIs the prompt on the display illuminated in orange?If the LED is illuminated in orange, the power ma nagement mode is active. Press any button on the computer keyboard or move the mouse. If that does not help, check the signal cable connectors. If any pin is bent or broken off, plea se contact your dealer to get necessary support.Is the prompt on the display not illuminated at all?Check the power supply mains socket, the ex ternal power supply and the mains switch.The image is distort...