YABER Y31 Manual Del Usuario página 20

*The Projector or the connected device (PC, DVD, etc.) is muted
*Dolby sound is not supported, exit to play again
*The audio format is not supported by the projector
*VGA connec�on can only transmit analog signal of video not audio. An external speaker is
required when the device is connected via VGA cable.
*Encryp�on applied to the videos or media player which holds the video. Try more videos
to define this possibility.
*Exclude the above possibili�es, try another HDMI cable /external speaker, and a 2.0USB
disk within 32G/USB hard disk within 1TB to play directly to check if the video and audio are
both available.
2.Why is the audio of the projector available but without display?
*The video format is not supported by the projector
*Encryp�on applied to the videos or media player which holds the video
*If the lamp of the projector is off with only audio playing, the lamp is defec�ve. Please
contact YABER for a replacement.
*Try another HDMI cable if you select the HDMI input source
3.Why does the projec�on screen show no signal?
*Make sure all cables are plugged correctly and firmly
*Make sure you select the right input source. For example, if you insert a USB drive, please
select USB in the interface of Input Source
*USB 2.0 disk is supported on this projector. If a USB 3.0 is connected, it will only show No Signal.
4.How can I do if the image is blurry or out of shape?
*Adjust the focus and keystone ring by moving it le�ward/rightward �ll it shows the best images
*Place projector on a flat surface horizontally or ver�cally. An inclina�on of any angle may
result in blurry displays or uneven colors
*Darker environment suggested achieving the best projec�ng performance
*The eligible distance of 5.8� /50 inch- 18� /200 inch between the projector and projec�ng
screen/wall
*Projec�ng wall or screen is clean white if possible.
5.How can I do if the image is up side down?
*Enter Menu-Picture-Projec�on Direc�on to flip the projec�on image accordingly.
6.How can I do if the projec�on screen is not square or allied horizontally?
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