Epson Powerlite Pro G5750wunl Users Guide

Maintaining the Projector141
7. Once the lamp is fully inserted, tighten its screws.
8. Replace the lamp cover, then tighten its screws.
9. Reset the lamp timer as described in the next section. 
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menu. 
1. Press the 
Menu button on the remote control or on the 
projector’s control panel. You see the main menu.
2. Use the  pointer button on the remote control (or the arrow 
buttons on the...

142Maintaining the Projector5. When you’re finished, press 
Menu to exit. 
Checking Lamp Usage 
To check the number of hours the lamp has been used, press the 
Menu button and highlight the Info menu. You see a screen like this:
The life span of the projection lamp is about 2000 hours if 
Power 
Consumption
 in the Settings menu is set to Normal (default), and 
3000 hours if 
Power Consumption is set to ECO. Make sure you 
have a spare lamp handy if the usage hours on this menu are close to 
the life...

Maintaining the Projector143
3. Install two AA alkaline batteries, 
inserting the 
+ and – ends as 
shown.
4. Position the cover as shown, then 
press down until it snaps into 
place.
Transporting the Projector
The projector contains many glass and precision parts. Follow these 
guidelines to prevent damage: 
■If you are moving the projector by hand, use the projector handle.
■Attach the lens cover to the lens.
■Return the projector feet to their stored (highest) positions.
Additionally, follow these...

144Maintaining the Projector 

7
145
7
Solving Problems
This chapter helps you solve problems with your projector, and tells 
you how to contact technical support for problems you can’t solve 
yourself. The following information is included:
■Using the projector’s on-screen help system
■What to do when the projector’s status lights flash
■Solving projector operation problems
■Solving problems with the image or sound
■Solving network problems
■Solving problems with the remote control
■Contacting technical support 

146Solving Problems
Using On-Screen Help
If the image doesn’t look right or your audio isn’t working, you can 
get help by pressing the 
? Help button on the back of the projector or 
on the remote control.
1. Press the 
? Help button on the remote control or on the 
projector. 
You see the Help menu:
2. Use the  pointer button on the remote control or the 
navigational buttons on the projector to highlight menu items.
3. Press the 
Enter button on the remote control or on the projector 
to select the...

Solving Problems147
Checking Projector Status
If your projector isn’t working correctly, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
doesn’t solve the problem, check the lights on top of the projector.
What To Do When the Lights Flash
The lights on top of the projector indicate the projector’s status.
Refer to the following table for a complete description of the 
projector’s status lights:
Temperature light
Lamp light
Power light
Wireless LAN...

148Solving Problems
Flashing orange The projector is cooling down. You can’t turn it back on (and you 
should not unplug it) until the light stops flashing and remains 
orange.
The projector is setting itself up for network monitoring.
Flashing green The air filter may be clogged. Clean or replace the air filter as 
described on pages 134 to 138.
Red or 
flashing redThere is a problem with the projector. Check the other two lights and 
the information on page 149 to diagnose the problem. 
Flashing orange...

Solving Problems149
Solving Projector Operation Problems
The power doesn’t turn on.
■If the projector doesn’t turn on when you press the Ppower 
button, make sure the power cord is connected to the projector 
and plugged into a working electrical outlet.
■The power cord may be defective. Disconnect the cord from the 
outlet and contact Epson as described on page 161.
■If you’re using the Direct Power On function and you 
immediately plug the power cord back in after unplugging it, the 
power may not turn...

150Solving Problems
The buttons on the projector don’t work.
If the Control Panel Lock function has been enabled, you can’t use the 
buttons on the projector. Try using the remote control instead (make 
sure it is set to the correct ID). See page 125 for information about the 
Control Panel Lock function.
Solving Problems With the Image 
or Sound
No image appears on the screen.
■Check that the Ppower light is green, not flashing, and that the 
lens cover is removed. 
■The projector may be in standby or...