3M X55I manual Mute function is working, Volume is adjusted to an extremely low level

3M™ Digital Projector S55i/X55i

Troubleshooting

Phenomena that may be easy to be mistaken for machine defects (continued)

Phenomenon	Cases not involving a machine defect	Reference
		page
	The signal cables are not correctly connected.	12,13
	Correctly connect the audio cables.
	The MUTE function is working.	18
	Restore the sound pressing the MUTE or VOLUME button
Sound does not	on the remote control.
come out.	The volume is adjusted to an extremely low level.	18
	Adjust the volume to a higher level using the menu function
	or the remote control.
	The AUDIO setting is not correct.	34
	Correctly set the AUDIO item in the SETUP menu.
	The lens cap is attached.	17
	Remove the lens cover.
	The signal cables are not correctly connected.	12, 13
	Correctly connect the connection cables.
No pictures are	The brightness is adjusted to an extremely low level.
displayed.	Adjust BRIGHTNESS to a higher level using the menu	25
	function or the remote control.
	The computer cannot detect the projector as a plug
	and play monitor.	11
	Make sure that the computer can detect a plug and play
	monitor using another plug and play monitor.
Video screen	The FREEZE function is working.	22
display freezes.	Press the FREEZE button to restore the screen to normal.
Colors have a	Color settings are not correctly adjusted.	25, 28,
	Perform picture adjustments by changing the COLOR
faded- out	TEMP, COLOR, TINT and/or COLOR SPACE settings,	32
appearance, or	using the menu functions.
Color tone is	COLOR SPACE setting is not suitable.	32
poor.	Change the COLOR SPACE setting to AUTO, RGB,
	SMPTE240, REC709 or REC601.

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