117
Phenomenon Cases not involving a machine defect
Reference
page
The sound 
or image 
is unstable 
or is output 
intermittently.
When LAN, USB TYPE A or USB TYPE B port is 
selected, some ports of the output may be missing 
due to signal processing delay. 
Change the signal or use another port.
21, 48
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 
FRQ¿JXUDWLRQ
Disconnect the USB cable from the computer, then 
reconnect it after starting up the computer.
11
RS-232C does 
not work.
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
46
The COMMUNICATION TYPE for the CONTROL port is 
set to NETWORK BRIDGE.
Select OFF for COMMUNICATION TYPE item in the 
OPTION - SERVICE - COMMUNICATION menu.
63
Network does 
not work
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
46
The same network address is set for both wireless and wired 
LAN.
Change the network address setting for wireless or wired 
LAN.
68, 73
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.
63
Schedule function 
does not work
The SAVING function is working.
Select NORMAL for STANDBY MODE item in the SETUP menu.
46
The internal clock has been reset.
Once you turn off the projector in the SAVING mode or the 
AC power, the current date and time setting is reset. Check 
the DATE AND TIME setting for WIRELESS SETUP or 
WIRED SETUP in the NETWORK menu.
70, 74
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
(continued on next page)