Epson Powerlite Pro Cinema 7500ub Users Guide

Maintenance51
7. Gently tap both sides of the air filter against a hard surface 
four or five times to remove loose dust from the air filter.
Note:  Do not tap the filter too hard. This can cause it to bend 
or break.
8. Use a small vacuum cleaner that is designed for computers  and other office equipment to remove any remaining dust 
from the surface of the filter. If you don’t have one, gently 
clean the filter using a very  soft brush (such as a clean 
artist’s paintbrush).
If the dirt is difficult...

52Maintenance
Replacing the Lamp
The projection lamp lasts for up to 4000 hours. You can use the Info menu to check how 
long it’s been in use (see page 55).  It’s time to replace the lamp when:
■The projected image gets darker or starts to deteriorate.
■The projector’s lamp light flashes red at half-second 
intervals.
■The message Replace the lamp appears on the screen 
when you start projecting.
Note:  Lamp life results will vary depending on mode selected, 
environmental conditions, and usage. 
Turn...

Maintenance53
5. Insert the screwdriver that came with the lamp (or a similar tool) into the slot on the back of the projector to release the lamp cover. Then lift up the cover to remove it.
6. Loosen the two screws securing the lamp (they don’t come all the way out).
7. Grasp the bottom of the lamp as  shown and pull it straight out.
Warning:  The lamp(s) in this product contain mercury. Please consult your state and local 
regulations regarding disposal or recycling. Do not put in the trash. 

54Maintenance
8. Gently insert the new lamp and tighten its screws.
Caution: Don’t touch the glass portion of the lamp  assembly. Touching the glass could result 
in premature lamp failure.
9. Replace the lamp cover. (The projector won’t  work if the lamp cover is open or loose.)
10. Reset the lamp usage timer, as described on page 55. 

Maintenance55
Resetting the Lamp Usage Timer
After replacing the lamp, plug the projector back in, turn on the power switch on the back, 
and press the P
Power button. Then follow these steps to reset the lamp usage timer:
1. Press the 
Menu button on the projector or remote control.
2. Use the menu navigation buttons to open the 
Reset menu, then select Reset Lamp 
Hours
. 
3. When you see a confirmation prompt, highlight 
Yes and press the Enter button.
4. When you’re finished, press the 
Menu button...

56Maintenance
Storing the Projector
If you need to store the projector for an extended time, do the following:
■Make sure the temperature of the storage area is within 14 to 140 °F (–10 to 60 °C).
■Attach the lens cover and retract the feet.
■Remove the batteries from the remote control.
■Pack the projector in its original packaging or equivalent.
Transporting the Projector
Note: Epson shall not be liable for any damages incurred during transportation.
The projector contains many glass and precis ion...

Problem Solving57
Problem Solving
This section explains how to interpret the projector’s status lights, solve problems with the 
picture and remote control, and contact technical support.
What To Do When the Lights Come On 
or Flash
The lights on top of the projector indicate the projector’s 
status and let you know when a problem occurs.
If the projector isn’t working correctly, first press the 
Ppower button, let the projector cool down, turn off the 
power switch on the back, and unplug the power...

58Problem Solving
Lights indicating a problem
Light state Cause and solution
All  lights  are  off The projector is not receiving power. Make sure the power switch on the back of the projector is turned on and the power cord is 
connected securely at both ends.
The temperature 
light flashes 
orange and the  power icon is 
flashing High-speed cooling is in progress. If the temperature rises 
further, projection will stop au
tomatically. Make sure there is 
plenty of space around the projector for...

Problem Solving59
Solving Picture Problems
You cannot turn on the projector.
■Make sure the power cord is connected and the power switch in back of the projector is 
turned on. Then wait a moment for the  Ppower icon to light up before pressing the 
P power button.
■If you’ve set the Operation Lock, the control panel buttons are disabled; you must use 
the remote control to turn on the projector (see page 32).
■If you’ve set the Child Lock, you have to press the  Ppower button for 3 seconds to turn 
on...

60Problem Solving
You’re using a computer and no picture appears on the screen.
If you’re using a Windows
® laptop:
■Press the function key that lets you display on an external monitor. It’s often labeled with 
an icon such as  , but it may also be labeled 
CRT/LCD. You may have to hold down 
the 
Fn key while pressing it. Check your laptop’s manual or online help.
On most systems, the   key lets you  toggle between the LCD screen and the 
projector, or display on both at the same  time. Allow a few...