Phenomenon Cases not involving a machine defect
Reference 
page
The computer 
connected to the 
USB TYPE B port 
of the projector 
does not start up.
The computer cannot start up in the current hardware 
conguration.
Disconnect the USB cable from the computer, then 
reconnect it after starting up the computer.
10
RS-232C does 
not work.
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
45
The COMMUNICATION TYPE for the CONTROL port is 
set to NETWORK BRIDGE.
Select OFF for COMMUNICATION TYPE item in the 
OPTION - SERVICE - COMMUNICATION menu.
62
Network does 
not work
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
45
NETWORK 
BRIDGE 
function does 
not work
The NETWORK BRIDGE function is turned off.
Select NETWORK BRIDGE for COMMUNICATION TYPE 
item in the OPTION - SERVICE - COMMUNICATION menu.
62
Schedule function 
does not work
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
45
When the 
projector is 
connected to the 
network, it powers 
off and on as 
described below.
Powers off
POWER indicator 
blinks in orange a 
few times
Goes into  
standby mode
Disconnect the LAN cable and check that the projector 
is working properly.
If this phenomenon occurs after connecting to the network, 
there may be a loop between two Ethernet switching hubs 
within the network, as explained below.
- 
There are two or more Ethernet switching hubs in a network.
- Two of the hubs are doubly connected by LAN cables.
-  
This double connection forms a loop between the two hubs.
Such a loop may have an adverse effect on the projector 
as well as the other network devices.
Check the network connection and remove the loop by 
disconnecting the LAN cables such that there is only one 
connecting cable between two hubs.
–
Video les cannot 
be played properly 
on a computer 
on which the 
"LiveViewer" was 
run.
The "LiveViewer" has been intentionally or accidentally 
forced to shut down.
DirectDraw
®
 or Direct3D
®
 has been disabled on your Windows
®
. 
Please refer to the Microsoft
®
 Help and Support home 
page on how to enable DirectDraw
®
 or Direct3D
®
.
–
Troubleshooting
• Although bright spots or dark spots may appear on the screen, this 
is a unique characteristic of liquid crystal displays, and it does not constitute or 
imply a machine defect.
NOTE
Phenomena that may be easy to be mistaken for machine defects (continued)