Epson Projector Emp 7900 User Manual

120
Problem Solving
 The projector cannot be monitored and controlled using the EMP Monitor function
 No sound can be heard or the sound is faint
Check
Remedy
Is the projector computer correctly connected 
to the network?
Connect the network cable correctly.   p.95
Has the projector been set up correctly for 
connection to the network?
Check the settings for the Network menu command.
Advanced2 - Network   p.96
Has EMP Monitor function been correctly 
installed to the computer?
Uninstall EMP Monitor and...

121
Problem Solving
 The remote control does not work
 The fans do not stop when power is turned off 
Check
Remedy
Is the [R/C] switch at the ON position?
Set the [R/C] switch to the ON position.   p.31
Is the remote control light-emitting area 
facing towards the remote control light-
receiving area when it is operated?
Face the remote control towards the remote control light-receiving area.
The operating angle for the remote control is approximately ±30º horizontally and approximately 
±15º vertically....

AppendicesThis chapter provides information on maintenance procedures to ensure the best level of performance for the 
projector for a long time.Maintenance ...................................................... 123
 Cleaning ............................................................................. 123 Cleaning the Projector Case..................................................... 123
 Cleaning the Lens .................................................................... 123
 Cleaning the Air...

123
MaintenanceThis section describes maintenance tasks such as cleaning the projector and 
replacing consumable parts.Cleaning
You should clean the projector if it becomes dirty or if the quality of 
projected images starts to deteriorate.
Clean the projector case by wiping it gently with a soft cloth.
If the projector is particularly dirty, moisten the cloth with water 
containing a small amount of neutral detergent, and then firmly wring the 
cloth dry before using it to wipe the projector case. Then...

124
Maintenance
Air filters at side and base of projector
Pull the air filters out from the projector and then use a vacuum cleaner to 
clean them.
Replacing Consumables
This section describes how to replace the lamp and the air filters.
It is time to replace the lamp when:
The message Lamp Replace. appears on the screen when 
projection star ts.The   indicator is flashing orange
The projected images get darker or start to deteriorate in quality.
TIP
 If the air filters are broken or if the warning...

125
Maintenance
PROCEDURE
Turn the projectors power off, wait for the cool-down 
period to end, and then disconnect the power cable.
The cool-down period lasts for about 20 seconds.
TIP
 The lamp replacement message is set to appear after the following 
periods of time in order to maintain the initial brightness and quality 
of the projected images.
·When used continuously at high luminance: Approx. 1900 hours
·When used continuously at low luminance: Approx. 2900 hours
Brightness Control   p.87
If you...

126
Maintenance
Wait until the lamp has cooled down, and then 
remove the lamp cover from the base of the projector.
It takes a further one hour after the cool-down period has 
finished for the lamp to be cool enough.
Insert the screwdriver that is supplied with the spare lamp or 
some other flat-tipped screwdriver into the hollow between the 
projector and the lamp cover, and turn it. The lock will be 
released. Slide the screwdriver in until the   mark on the lamp 
cover and the   mark on the projector...

127
Maintenance
Take out the old lamp.
Fold out the handle as shown in the illustration below and pull 
the lamp out of the projector.
If the lamp is broken, replace it with a new lamp, or contact 
your local dealer for further advice. If replacing the lamp 
yourself, be careful to avoid pieces of broken glass.
Install the new lamp.
Hold the lamp so that it faces the correct way to fit into the 
projector, and then insert the lamp until it clicks into place and 
tighten the two lamp fixing screws.Install...

128
Maintenance
The projector has a built-in counter which keeps track of the lamp 
operating time, so that when the cumulative operating time reaches a 
certain point, it causes the replacement warning message to be displayed. 
Therefore, the counter needs to be reset using the configuration menu after 
the lamp has been replaced with a new one.PROCEDURE
Connect the power cable, turn on the projectors 
power, and then press the [Menu] button on the 
remote control.
The configuration menu will be...

129
Maintenance
Select Reset Lamp Timer from the About menu 
and then press the [Enter] button on the remote 
control or the [Auto/Enter] button on the projectors 
control panel.Select Yes and then press the [Enter] button on the 
remote control or the [Auto/Enter] button on the 
projectors control panel.
The lamp operating time will then be reset.
If the air filters are broken or if the warning message reappears after they 
have been cleaned, they should be replaced.
The air filter can be replaced even...