Epson EB-770F User Manual

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• 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.
• If the volume for the computer is set to the minimum while the projector's volume is set to maximum,
the sound level may be mixed. Turn up the computer's volume and decrease the projector's volume
(when using Epson iProjection [Windows/Mac] or USB Display).
• Make sure the Audio Output Device option is set to the correct audio port for your video device.
• Check the Mic Input Level setting (EB-760W/EB-770F) and lower it, if necessary.
• 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
Related references
Input Signal Settings - Signal I/O Menu
Solutions to Microphone Problems
Related tasks
Connecting to a Video Source for Sound
Connecting to External Speakers
Controlling the Volume with the Volume Buttons
Solutions to Microphone Problems
If there is no sound when you use a microphone connected to the projector (EB-760W/EB-770F), 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 Problems Using Content Playback
If you cannot play back a playlist correctly, try the following solutions (EB-770F/EB-775F):
• Check the following on all projectors:
• All projectors are the same model. If any of the projectors are a different model or have a different
resolution, synchronized playback may not be performed properly.

Epson EB-770F Specifications

General

Number of colors	1.07 billion colors
Native aspect ratio	16:9
Projection technology	3LCD
Contrast ratio (typical)	2500000:1
Screen size compatibility	57 - 150 \
Projector native resolution	1080p (1920x1080)
Keystone correction, horizontal	-3 - 3 °
Focus	Manual
Throw ratio	0.25
Zoom capability	Yes
Fixed focal length	3.7 mm
Light source type	Laser
Service life of light source	- h
Product type	Ultra short throw projector
Product color	White
Market positioning	Education
Cable lock slot type	Kensington
Audio (L/R) in	-
Composite video in	0
Serial interface type	RS-232C
USB 2.0 ports quantity	2
VGA (D-Sub) ports quantity	3
RMS rated power	16 W
Number of built-in speakers	1
Analog signal format system	Not supported
Power source	AC
Power consumption (standby)	2 W
Power consumption (typical)	263 W
Display diagonal	0.62 \
Noise level	37 dB
Noise level (economic mode)	27 dB

Weight and Dimensions

Depth	395 mm
Width	357 mm
Height	165 mm
Weight	5900 g