Epson EB-L520U, User Manual, Page: 290 / 332

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Displaying From a Mac Laptop
If you see the "No Signal" message when you display from a Mac laptop, you need to set up the laptop
for mirrored display. (See your laptop manual for details.)
1. Open the System Preferences utility and select Displays , Display , or Color LCD .
2. Click the Arrange or Arrangement tab.
3. Select the Mirror Displays checkbox.
Parent topic: Solutions When "No Signal" Message Appears
Solutions When No Image Appears on an External Monitor
If no image appears on a connected external monitor, try the following solutions:
• Make sure your external monitor's cable is connected to the monitor and to the projector's Monitor
Out port.
• Make sure you set the Monitor Out Port setting to Monitor Out .
Parent topic: Solving Image or Sound Problems
Related references
Input Signal Settings - Signal I/O Menu
Solutions When "Not Supported" Message Appears
If the "Not Supported" message appears, try the following solutions:
• Make sure the correct input signal is selected on the Signal I/O menu.
• Make sure the computer's display resolution does not exceed the projector's resolution and frequency
limit. If necessary, select a different display resolution for your computer. (See your computer manual
for details.)
• If you are projecting from an HDMI source, change the HDMI IN EQ Level setting in the projector's
Signal I/O menu. Follow the on-screen instructions. You may need to restart the projector.
• If you are projecting using a thumb-sized media streaming device, set the HDMI IN EQ Level to Auto
in the projector's Signal I/O menu.
Parent topic: Solving Image or Sound Problems
Related references
Input Signal Settings - Signal I/O Menu