Christie LWU620i User Manual page 127

Issues that may be easy to be mistaken for machine defects (continued)
Issue
Sound does not
come out.
No pictures are
displayed.
(continued on next page)
LWU720i/LHD720i/LWU620i
User's Manual - Operating Guide
Cases not involving a machine defect
The signal cables are not correctly connected.
Correctly connect the audio cables.
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu
function or the remote control.
The AUDIO SOURCE/SPEAKER setting is not correct.
Correctly set the AUDIO SOURCE/SPEAKER in AUDIO
menu.
The Sound button (♪) or checkbox is disabled.
If you have selected LAN, remove the checkmark from
the Sound checkbox in the Option menu of LiveViewer.
The signal cables are not correctly connected.
Correctly connect the connection cables.
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu
function.
The computer cannot detect the projector as a plug
and play monitor.
Make sure that the computer can detect a plug and play
monitor using another plug and play monitor.
The shutter is closed.
Check whether the SHUTTER indicator is blinking. If it is
blinking, press SHUTTER button on the control panel.
125
Troubleshooting
Reference
page
13 ~ 22
37, 80
80
–
13 ~ 22
62
13
52
020-001279-01 Rev. 1 (10-2017)