123
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defect
Reference 
page
Sound does not 
come out.
The signal cables are not correctly connected.
Correctly connect the audio cables.
9 ~ 14
The MUTE function is working.
Restore the sound pressing MUTE or VOLUME +/- button 
on the remote control.
22
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote control.
22, 50, 
51
The AUDIO SOURCE/SPEAKER setting is not correct.
Correctly set the AUDIO SOURCE/SPEAKER in AUDIO menu.
50
The Sound button (♪) or checkbox is disabled.
If you have selected USB TYPE A, turn the sound on from 
the Thumbnail menu. 
If you have selected USB TYPE B, remove the check 
mark from the Sound checkbox in the Options window of 
“LiveViewer Lite for USB”.
If you have selected LAN, remove the check mark from the 
Sound checkbox in the Option menu of “LiveViewer”.
90, 106, 
110
No pictures are
displayed.
The signal cables are not correctly connected.
Correctly connect the connection cables.
9 ~ 14
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu function.
34
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.
10
The BLANK screen is displayed.
Press BLANK button on the remote control.
29
The projector does not recognize the USB storage 
device inserted into USB TYPE A port. 
Before removing the USB storage device, be sure to use 
the REMOVE USB function on the thumbnail screen, which 
appears when the USB TYPE A port is selected as the input 
source.
13
"Waiting for connection." remains displayed even 
though the USB TYPE B port is selected.
Remove the USB cable and reconnect after a while.
10
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