Epson Powerlite 715c Multimedia Projector Users Guide

							82Fine-tuning the ProjectorYou see the lamp usage hours and computer display settings on 
the right:
The life span of the lamp is about 1000 hours. If the number 
shown is close to 1000, make sure you have a spare lamp handy.
3. When you’re finished, press 
Esc or Menu.
Restoring the Default Settings
The Reset All option lets you return all the projector settings to their 
default values.
Select 
Reset All and press the Enter button on the remote control to 
display the confirmation screen. Select 
Yes to reset all the default 
settings or 
No to cancel.
note
If you access the About 
menu when the projector 
display is set to video, you 
only see the lamp life and 
the video signal setting.
Lamp ON Time
Video Source
Input Signal
Frequency
SYNC Polarity
SYNC Mode
Resolution
Refresh Rate
9999 H
Computer
RGB
H 999. 99 KHz
V 999. 99 Hz
H Positive
V Negative
Sync On Green
9999x9999
999. 9 Hz :
:
:
:
:
:
:
:
:
: Video
Audio
Effect
Setting
Capture
Advanced
About
Reset All
:Select
Execute
Video
Audio
Effect
Setting
Capture
Advanced
About
Reset All
:Select :Execute 
						

							7
Maintaining and Transporting the Projector83
Maintaining and 
Transporting the Projector
Your projector needs little maintenance. All you need to do on a 
regular basis is keep the lens clean. Any dirt or smears on the lens may 
show up on your projected image. 
You also need to periodically clean the air filter on top of the 
projector. A clogged air filter can block ventilation needed to cool the 
projector and keep it from overheating. 
The only parts you should replace are the lamp and air filter. If any 
other part needs replacing, contact your dealer or a qualified servicer. 
This chapter covers the following:

Cleaning the lens

Cleaning the projector case

Cleaning and replacing the air filter

Replacing the lamp

Transporting the projector
warning
Before you clean any part 
of the projector, turn it 
off 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. 
						

							84Maintaining and Transporting the Projector
Cleaning the Lens 
Clean the lens whenever you notice dirt or dust on the surface. 

Use a canister of compressed air to remove dust. 

To remove dirt or smears on the lens, use lens-cleaning paper. If 
necessary, moisten a soft cloth with lens cleaner and gently wipe 
the lens surface. 
Cleaning the Projector Case 
Before you clean the case, first turn off the projector and 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 wax, alcohol, benzene, thinner, or other chemical 
detergents. These can damage the case.
Extend the lens and 
remove the cap before 
cleaning 
						

							Maintaining and Transporting the Projector85
Cleaning and Replacing the Air Filter 
Clean the air filter on top 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, allow it to cool down, and unplug the 
power cord.
2. Stand the projector on end to keep dust and dirt from falling 
inside. 
3. To clean the filter, EPSON recommends using a small vacuum 
cleaner designed for computers and other office equipment. If you 
don’t have one, gently clean the filter using a very soft brush (such 
as an artist’s camel-hair brush).
If the dirt is difficult to remove or if the filter is torn, replace it. 
Contact your dealer or call EPSON at (800) 873-7766 in the 
United States and Canada to obtain a new one. 
note
When you get a 
replacement lamp for your 
projector, a new air filter 
is included. You should 
replace the filter when 
you replace the lamp. 
						

							86Maintaining and Transporting the Projector4. If you need to replace the filter, use a small screwdriver to pry it 
off.
5. To install the new filter, first insert the tab, then press down until 
it clicks in place.
Replacing the Lamp 
The projection lamp typically lasts for about 1000 hours of use. It is 
time to replace the lamp when:

The projection image gets darker or starts to deteriorate.

The lamp warning light   is flashing red or orange. 

The message LAMP REPLACE appears on the screen when the 
lamp comes on (after about 900 hours of use). To maintain 
projector brightness and image quality, replace the lamp as soon 
as possible.
Contact your dealer or call EPSON at (800) 873-7766 in the United 
States and Canada for a replacement lamp. Request part number 
ELPLP14.
note
You can check to see how 
many hours the lamp has 
been used. See page 81. 
						

							Maintaining and Transporting the Projector87
Follow these steps to replace the lamp:
1. Turn off the projector, then unplug the power cord.
2. Allow the projector to cool down for at least an hour (if it has 
been on).
3. Turn the projector upside-down to access the lamp compartment.
4. Use a screwdriver to loosen the retaining screw on the lamp cover. 
(You can’t remove the screw from the cover.) 
When the screw is loose, lift off the lamp cover. 
)
5. Use a screwdriver to loosen the two screws holding the lamp in 
place. (You can’t remove these screws.) 
6. Lift up the wire handle, as shown, and pull the lamp straight out. 
warning
Let the lamp cool before 
replacing it. If the lamp 
breaks, handle the shards 
carefully to avoid injury.
handle 
						

							88Maintaining and Transporting the Projector7. Gently insert the new lamp. 
8. Once the lamp is fully inserted, tighten its screws.
9. Replace the lamp cover and tighten its screw securely. (The 
projector won’t come on if the lamp cover is loose.)
Transporting the Projector
The projector contains many glass and precision parts. If you need to 
transport it, please follow these packing guidelines to prevent damage 
to the projector: 

When shipping the projector for repairs, use the original 
packaging material if possible. If you do not have the original 
packaging, use equivalent materials, placing plenty of cushioning 
around the projector.

When transporting the projector for business use, first put it in a 
carrying case (such as an 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 
carrying case (such as an optional EPSON case).

If you want to store the remote control inside the projector’s 
carrying case, be sure to turn it off using the switch on its side. 
This prevents the batteries from discharging if something presses 
against one of the buttons.
caution
Do not touch the glass 
portion of the lamp assembly. 
Touching the glass could 
result in premature lamp 
failure.
note
EPSON shall not be liable 
for any damages incurred 
during transportation. 
						

							8
Solving Problems89
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. This chapter explains the following:

Using the projector’s on-screen help system

What to do when the projector’s status lights flash

Solving problems with the image or sound 

Solving problems with the remote control

Solving EasyMP problems

EasyMP error messages

Contacting technical support 
						

							90Solving 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 blue 
? Help button on top of the projector or 
under the cover on the remote control. The following choices are 
available:

Help for the image

Help for the sound

Language selection
Follow these steps to get help:
1. Press the blue 
? Help button on the projector or the remote 
control. You see the help menu.
2. Press the side of the 
Select (Keystone) button on the projector 
(or use the 
Enter button on the remote control) to highlight one 
of the options. Then press the 
Enter (Source) button to select it.
3. Press the side of the 
Select (Keystone) button on the projector 
(or use the 
Enter button on the remote control) to highlight the 
problem you want to solve. Then press the 
Enter (Source) 
button to view the solution(s). 
4. Highlight a solution (if this choice is available). Then press the 
Enter (Source) button to select the solution. 
Highlight 
Return and press the Enter (Source) button if you 
need to back up.
If the solution is to adjust one of the settings, press the side of the 
Select (Keystone) button on the projector (or use the Enter 
button on the remote control) to adjust it.
5. To exit the Help system, press the blue
 ? Help button.
If none of the suggestions solves your problem, see additional 
solutions to problems in the following sections. 
						

							Solving Problems91
What To Do When the Lights Flash
The lights on top of the projector indicate the projector’s status and 
let you know when a problem occurs.
If the projector is not working correctly, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
does not solve the problem, check the status lights on top of the 
projector and try the solutions recommended below.
The   power light is flashing orange and you cannot turn 
on the projector.
The lamp is cooling down. Wait until the light turns off and then 
press the 
Power button to turn on the projector.
The   power light does not come on.
Make sure the power cord is connected securely both at the power 
outlet and the projector. If you have just replaced the lamp, make sure 
the cover is securely fastened.
The   lamp warning light is red or flashing red.
Replace the lamp as described on page 86. 
power light
lamp light
temperature 
light