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• If you are using the USB Display function, turn on the Output audio from the projector setting in the
Epson USB Display Settings program on your computer.
• If you are using a Mac and you do not hear sound from an HDMI source, make sure your Mac
supports audio through the HDMI port. If not, you need to connect an audio cable.
• If you want to use a connected audio source when the projector isn't projecting any images, set the
Quick Startup option in the Operation menu to Off and make sure the A/V Output setting in the
Signal I/O menu is set to Always On.
• Make sure the Audio Out Device option is set to the correct audio port for your video device.
• If you turn the projector on immediately after turning it off, the cooling fans may run at high speed
momentarily and cause an unexpected noise. This is normal.
Parent topic: Solving Image or Sound Problems
Solutions to Microphone Problems
If there is no sound when you use a microphone connected to the projector, try the following solutions:
• Make sure the microphone is securely connected to the projector.
• Adjust the Mic Input Level setting in the Signal I/O menu. If the setting is too high, the sound of the
other connected devices will be too low.
Parent topic: Solving Image or Sound Problems
Solutions to PC Free Problems
If you are having problems with the PC Free feature on your projector, try the following solutions:
• If any file names are longer than the display area or include unsupported symbols, the displayed file
names are shortened or changed in PC Free. To avoid this, shorten or change the file name on the
USB drive.
• If you are using a USB device with a slow transfer speed, you may not be able to project movies
correctly.
• You cannot play movies saved with a movie codec other than H.264 and H.265. (H.265 only supports
Main Profile.)
• You cannot play audio saved with an audio codec other than LPCM and AAC-LC.
Parent topic: Solving Image or Sound Problems
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