Epson Powerlite 7500c Multimedia Projector Users Guide

							109
5Maintenance
Y
our projector needs little maintenance. You should, however, do 
the following:

Clean the lens so dirt or smears do not appear on the screen. 

Clean the projector case when needed.

Periodically clean the air filter at the bottom of the projector. A 
clogged air filter can block ventilation needed to cool the 
projector and keep it from overheating. 

Replace the lamp and air filter as needed. (If any other part 
needs replacing, contact your dealer or a qualified service 
person.)
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When transporting the projector, take appropriate precaution to 
avoid damaging the delicate internal components.
✦
Warning: Before you clean any part of the projector, turn off the 
projector and unplug the power cord. Never open any cover on the 
projector, except the lamp and filter covers. Dangerous electrical 
voltages in the projector can injure you severely. Do not try to 
service this product yourself, except as specifically explained in this 
User’s Guide.
 Refer all other servicing to qualified service 
personnel.
Cleaning the Lens 
Clean the lens whenever you notice dirt or dust on the surface. 
Lightly wipe the lens surface with a soft, dry, lint-free cloth. To 
remove dirt or smears on the lens, moisten a soft cloth with an 
alcohol-based cleaner and gently wipe the lens surface.
Cleaning the Projector Case 
To clean the projector case, first unplug the power cord. To remove 
dirt or dust, wipe the case with a soft, dry, lint-free cloth. To remove 
stubborn dirt or stains, moisten a soft cloth with water and a neutral 
detergent. Then wipe the case. 
Do not use alcohol, benzene, thinner, or other chemical detergents. 
These can cause the case to warp.
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							Cleaning the Air Filter
111
Cleaning the Air Filter 
Clean the air filter at the bottom of the projector after every 100 
hours of use. If it is not cleaned periodically, it can become clogged 
with dust, preventing proper ventilation. This can cause overheating 
and damage the projector. To clean the air filter, follow these steps:
1. Turn off the projector and unplug the power cord from the 
electrical outlet.
2. Place the projector on its side with the handle at the top so that 
the filter is easily accessible.
Note: Placing the projector in this position keeps dust from 
getting inside the projector housing.
3. Lift up the tab securing the air filter and remove the filter.
12
air filter tab
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4. The air filter is attached to the inside of the filter cover. It is 
recommended that you use a small vacuum cleaner designed for 
computers and other office equipment to clean the filter. If you 
don’t have one, use a dry, lint-free cloth. 
If the dirt is difficult to remove or if the filter is torn, replace the 
air filter. 
Note: An air filter comes with each replacement lamp. Contact 
your dealer or call EPSON Accessories at (800) 873-7766 in 
the U.S. to obtain a new one. Request part number ELPLP06. In 
Canada, call (800) 873-7766 for dealer referral.
5. Place the air filter back inside the filter cover.
6. Plug the power cord back into the electrical outlet. 
Replacing the Lamp
The projector lamp typically lasts for about 2000 hours of use. It is 
time to replace the lamp when:
The projected image gets darker or starts to deteriorate.

The projection lamp light is red or is flashing orange and red 
alternately.

The message LAMP REPLACE
 appears on the screen when 
the projector lamp comes on.
To order a replacement lamp, contact your dealer or call EPSON 
Accessories at (800) 873-7766 in the U.S. and ask for part number 
ELPLP06. In Canada, call (800) 873-7766 for dealer referral.
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							Replacing the Lamp
113
✦
Warning: Let the lamp cool before replacing it. Also, do not touch 
the glass portion of the lamp assembly; this can cause premature 
lamp failure.
1. Turn off the projector and unplug the power cord from the 
electrical outlet and the projector. Wait at least 20 minutes for 
the bulb to cool.
2. Place the projector on its side with the handle at the top so you 
can easily access the lamp cover.
Note: Placing the projector in this position keeps dust from 
getting inside the projector housing.
3. Use a screwdriver, coin, or similar object to loosen the retaining 
screw on the lamp cover. When the screw is loose, lift off the 
lamp cover. (You cannot remove this screw from the cover.
)
2
1
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							5    Maintenance             114
4. Use a screwdriver, coin, or similar object to loosen the two 
screws holding the lamp assembly in position. (You cannot 
remove these screws.) 
✦
Caution: Do not touch the glass portion of the lamp assembly; 
this can cause premature lamp failure.
5. Lift up the handle and pull out the lamp assembly.
6. Gently insert the new lamp assembly by lowering it into 
position. Make sure it’s inserted securely. Tighten the screws on 
the new lamp assembly.
7. Replace the lamp cover and tighten the cover screw. (Make sure 
the lamp cover is securely fastened. The projector will not run if 
the lamp cover is open.) 
2
1
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							Transporting the Projector
115
Transporting the Projector
The projector contains many glass parts and precision parts. If you 
need to transport it, please follow these packing guidelines to 
prevent damaging the projector: 
When shipping the projector for repairs, place plenty of 
cushioning around the projector.

When transporting the projector for business use, first put the 
projector in a hard-shell carrying case (such as the optional 
EPSON case), then pack it in a firm box, using cushioning 
around the case. 

When you are hand-carrying the projector, be sure to store it in a 
hard-shell or soft carrying case (such as the optional cases 
offered by EPSON).
Note: EPSON shall not be liable for any damages incurred during 
transportation.
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							117
6Troubleshooting
T
his chapter describes the problems indicated by the projector’s 
lights and tells you how to solve problems with the projector. It is 
divided into the following sections:

“Using the Online Help Menu” on page 118 describes how to 
use the projector’s online help for image and sound problems.

“Problems with the Projector” on page 119 tells you what to do 
if any of the projector’s warning lights come on.

“Problems with the Remote Control” on page 122 tells you what 
to do if the projector is not responding to remote control 
commands.
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“Problems with the Image or Sound” on page 123 describes 
what to do if you cannot project an image, if the screen image is 
not good, or if there is no sound.
If you have a problem, check the appropriate section and follow all 
suggestions that apply to your problem. If none of the suggestions 
solve the problem, call your dealer or contact EPSON as described 
on page 8.
Using the Online Help Menu
The online Help menu provides useful information that can resolve 
some common image or sound problems. To open the online Help 
menu, press the Help button on the control panel or the remote 
control. Help for the following problems is available:
The image does not appear on the screen

The image is not in focus

The image is blurred

The image is not displayed fully on the screen

The colors of the image are not corrected

The image is too dark

There is no sound
In some of the submenus above, actual projector adjustments can be 
performed within the Help menu to correct the particular problem.
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