Epson Powerlite 720c Multimedia Projector Users Guide

							Fine-tuning the Projector45
Customizing Projector Features
You can use the Setting menu to disable the projector’s sleep mode, 
adjust the image shape, and customize several other features.
1. Press the 
Menu button. 
2. Use the directional buttons to highlight 
Setting. You see the 
features and their settings on the right side:
3. Press 
Enter to select the Setting menu. 
4. Use the directional buttons and 
Enter button to set the following 
options:
■Keystone
Adjusts a distorted image from a trapezoid shape to 
rectangular. 
■Auto Keystone
Automatically adjusts a distorted image from a trapezoid to 
rectangular when the projector’s feet are extended or 
retracted.
■No-Signal Msg.
Selects the screen color and message to display when the 
projector is not receiving a signal. The logo setting displays an 
image that you have transferred to the projector. See page 43 
for instructions on transferring an image to use as the 
no-signal message.
+ -Auto Keystone
Reset
Execute Keystone      0
No-Signal Msg. OFFLogo
Prompt ON OFF
ON OFF
ON OFF
Color Mode PromptBlack Blue
Sleep Mode ON OFF A/V MuteLogo Black Blue
Video
Audio
Setting
Users Logo
Advanced
About
Reset All:
:
: Select : Enter
:
:
:
::
:
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							46Fine-tuning the Projector
■Prompt
Turns off the identifying text that appears briefly when you 
switch from computer input to a video source.
■Color Mode Prompt
Turns off the identifying text that appears briefly when you 
switch color modes.
■A/V Mute
Selects the screen color or image to display when you press 
the 
A/V Mute button. The logo setting displays an image that 
you have transferred to the projector. See page 43 for 
instructions on transferring an image to use for the A/V Mute 
display.
■Sleep Mode
Enables or disables the power management system, which 
turns the lamp off when the projector has not received any 
input signals for 30 minutes. 
5. When you’re finished, press 
Esc or Menu.
Setting Advanced Features
You can use the Advanced menu to configure the projector for rear 
projection or ceiling mounting, and adjust several other features.
1. Press the 
Menu button. 
2. Use the directional buttons to highlight 
Advanced. You see the 
features and their settings on the right side:
: Select : Enter
Video
Audio
Setting
Users Logo
Advanced
About
Reset AllStartup Screen
Color Adjustment
Link 21LColor Temp. RGB
Rear Proj .
Ceiling ON OFF LanguageSelect [English]
ON OFFResetExecute
AdjustON OFF
ON OFF: :
:
:
:
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							Fine-tuning the Projector47
3. Press Enter to select the Advanced menu. 
4. Use the directional buttons and 
Enter button to set the following 
options:
■Language
Select from nine languages to be used for the projector 
menus.
■Startup Screen
Turn on to display the image or logo you have captured 
whenever the projector starts. See page 43 for more 
information.
■Color Adjustment
Color Temp:
 Adjusts the whiteness of the screen.
RGB: Adjusts the individual RGB values.
■Rear Proj.
Turn on to project from behind a transparent screen.
■Ceiling
Turn on when the projector is mounted upside-down from 
the ceiling.
■Link 21L
Turn on to use the EMP Link 21L software to control the 
projector. This software can be downloaded from the 
EPSON website at support.epson.com.
5. When you’re finished, press 
Esc or Menu.
note
The USB mouse feature will 
not work when the Link 21L 
feature is turned on.
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							48Fine-tuning the Projector
Viewing Lamp Usage and Other 
Information
Use the About menu to view information about the display settings of 
your computer and the number of hours the lamp has been used.
1. Press the 
Menu button. You see the main menu.
2. Use the 
Enter button to select About.
You see the lamp usage hours and computer display settings on 
the right:
The life span of the lamp is about 1500 hours. If the number 
shown is close to 1500, make sure you have a spare lamp handy.
3. When you’re finished, press 
Esc or Menu.
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.
note
The lamp usage timer doesn’t 
register until you’ve used the 
lamp for at least 10 hours.
: Select : Enter
Video
Audio
Setting
Users Logo
Advanced
About
Reset All
Frequency Video Source
V ---.--Hz Reset Lamp Timer
H ---.--kHz Lamp 0H
SYNC Mode SYNC Polarity
------V ------ H ------
Resolution
Refresh Rate 0.0 Hz0x    0 Computer
Input Signal
: : :
: :
:
: : Analog-RGB
Execute
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							Fine-tuning the Projector49
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.
Execute
: Select : Execute
Video
Audio
Setting
Users Logo
Advanced
About
Reset All
 
 
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							50Fine-tuning the Projector
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							Maintaining and Transporting the Projector51
5
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 the side of the 
projector. A clogged air filter can block ventilation needed to cool the 
projector and cause 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
■Resetting the lamp timer
■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.
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							52Maintaining 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 mild detergent. Then wipe the case. 
■Do not use wax, alcohol, benzene, paint thinner, or other 
chemical detergents. These can damage the case.
caution
Do not use glass cleaner 
to clean the lens.
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							Maintaining and Transporting the Projector53
Cleaning and Replacing the Air Filter 
Clean the air filter on the side 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. To prevent dust from falling into the projector, place the 
projector as shown below.
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 to obtain a 
new one. In Canada, please call (800) 463-7766 to locate a dealer. 
4. If you need to replace the filter, lift the tab and pull it upward to 
remove the filter.
5. To install the new filter, first insert the tabs, then press down on 
the opposite end of the filter until it clicks in place.
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.
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							54Maintaining and Transporting the Projector
Replacing the Lamp 
The projection lamp typically lasts for about 1500 hours of use. It is 
time to replace the lamp when:
■The projected image gets darker or starts to deteriorate.
■The   warning light is red, flashing red, or flashing orange. 
■The message LAMP REPLACE appears on the screen when the 
lamp comes on (after about 1400 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 for a replacement lamp. Request part number 
V13H010L18. In 
Canada, please call (800) 463-7766 to locate a dealer. 
Follow these steps to replace the lamp:
1. Turn off the projector, wait for the cool down period to end, then 
unplug the power cord.
2. Allow the projector to cool down for at least half an hour (if it has 
been on).
3. Turn the projector upside-down to access the lamp compartment.
4. Press the two tabs and remove the lamp cover.
)
note
You can check to see how 
many hours the lamp has 
been used. See page 48.
warning
Let the lamp cool before 
replacing it. If the lamp 
breaks, handle the shards 
carefully to avoid injury.
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