Epson Powerlite 740c Multimedia Projector Users Guide

							Maintaining the Projector61
Cleaning the Air Filters and Vents
Clean the air filters and air intake vents after every 100 hours of use. If 
they are not cleaned periodically, they can become clogged with dust, 
preventing proper ventilation. This can cause overheating and damage 
the projector. 
Follow these steps:
1. Turn off the projector. Wait for the 
Power light to stop flashing, 
then unplug the power cord.
2. Turn the projector upside down.
3. To clean the intake vents, use a small vacuum cleaner designed for 
computers and other office equipment. If you don’t have one, 
gently clean the vents with a soft brush (such as an artist’s 
paintbrush).
4. If the dirt is difficult to remove or the filter is broken, replace the 
filter as described on page 64. Contact your dealer or call Epson at 
800-GO-EPSON (800-873-7766) to obtain a new filter. 
note
To order replacement air 
filters, request part number 
V13H134A08. See page 11 
for ordering information.
Calgary-Quebec Users Guide.book  Page 61  Thursday, January 20, 2005  9:26 AM 
						

							62Maintaining the Projector
Replacing the Lamp and Air Filter
The life span of the projection lamp is about 2000 hours if 
Brightness Control in the Setting menu is set to High (default), and 
3000 hours if 
Brightness Control is set to Low. 
It is time to replace the lamp when: 
■The projected image gets darker or starts to deteriorate.
■The message Replace the lamp appears on the screen when the 
lamp comes on and the lamp warning light   flashes orange. To 
maintain projector brightness and image quality, replace the lamp 
as soon as possible. 
■The lamp warning light   flashes red (the lamp is burnt out).
Contact your dealer or call Epson at 800-GO-EPSON 
(800-873-7766). Request part number V13H010L32. 
Follow these steps to replace the lamp and air filter:
1. Turn off the projector.
2. When the 
Power light stops flashing, unplug the power cord.
3. Let the projector cool for at least an hour (if it has been on). The 
lamp is extremely hot immediately after use. 
note
When you get a replacement 
lamp for your projector, you 
should replace the filters.
To check how long the lamp 
has been in use, see page 71.
warning
Let the lamp cool fully 
before replacing it. 
In the unlikely event that 
the lamp has broken, small 
glass fragments may be 
present and should be 
removed carefully to avoid 
injury.
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							Maintaining the Projector63
4. Turn the projector over. Press in on the tabs and lift up the lamp 
cover.
5. Loosen the two screws holding the lamp in place (you don’t need 
to remove them).
6. Hold the lamp as shown and pull it straight out.
7. Gently insert the new lamp. (If it doesn’t fit easily, make sure it is 
facing the right way.) 
Loosen, but don’t 
remove these screws
warning
This product includes a 
lamp component that 
contains mercury (Hg). 
Please consult your state and 
local regulations regarding 
proper disposal and do not 
put in the trash.
Calgary-Quebec Users Guide.book  Page 63  Thursday, January 20, 2005  9:26 AM 
						

							64Maintaining the Projector8. Once the lamp is fully inserted, tighten its screws. 
9. Slide the air filter out and remove it.
10. Slide in the new air filter until it clicks in place.
11. Insert the two cover tabs, then press down on the cover until it 
snaps into place.
12. Reset the lamp timer as described in the next section. 
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							Maintaining the Projector65
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menus. 
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 projector) to highlight 
Reset, then press Enter. 
You see this screen: 
3. Select 
Lamp Hours Reset and press Enter. You see this prompt:
4. Select
 Yes and press Enter.
5. When you’re finished, press 
Esc or Menu to exit. 
Calgary-Quebec Users Guide.book  Page 65  Thursday, January 20, 2005  9:26 AM 
						

							66Maintaining the Projector
Transporting the Projector
The projector contains many glass and precision parts. Follow these 
guidelines to prevent damage:
■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 a long distance, first place it in a 
hard-shell shipping case, then pack it in a firm box with 
cushioning around the case. (An optional case is available from 
Epson; see page 11.)note
Epson shall not be liable for 
any damages incurred 
during transportation.
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							67
1
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 problems with the remote control
■Contacting technical support
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							68Solving 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 
on the remote control. The following choices are available:
■”No Signal.” or no image appears on the screen
■Problems with sound
■Language change 
Follow these steps to get help:
1. Press the blue 
? 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 arrow 
buttons on the projector to highlight menu items.
3. Press the 
Enter button on the remote control or on the projector 
to select the menu item. 
4. To exit the help system, press the 
? Help button.
If none of the suggestions solve your problem, see additional solutions 
to problems in the following sections.
Calgary-Quebec Users Guide.book  Page 68  Thursday, January 20, 2005  9:26 AM 
						

							Solving Problems69
Checking Projector Status
If your projector isn’t working correctly, first turn it off, wait for it to 
cool (the 
Power light stops flashing orange), 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 
lightLamp light Power light
Status lights
Light Status Description
Orange The projector is in sleep or standby mode. You can unplug it or press the 
P Power button to turn it on.
Flashing green The projector is warming up. Wait for the image to appear.
Green The projector is operating normally.
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. 
Red There is a problem with the projector. Check the other two lights and the 
information on page 70 to diagnose the problem. 
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							70Solving Problems
Flashing red  There is a problem with the fan or temperature sensor. Stop using the 
projector, disconnect the power cable, and contact Epson as described 
on page 78.
Flashing orange Rapid cooling is in progress. Although this is not an abnormal condition, 
projection will stop automatically if the temperature rises higher. Make 
sure there is plenty of space around and under the projector for 
ventilation, and that the air filters and vents are clear.
Red The projector is overheating, which turns the lamp off automatically. 
Wait until the cooling fan stops, then unplug the power cord. Plug the 
power cord back in and press the 
P Power button. Make sure the room 
temperature is not above 95 °F (35 °C), and there is plenty of space 
around and under the projector for ventilation. 
The air filters may be clogged. Clean or replace them as described on 
page 61.
If the projector continues to overheat after you clean the air filter, the 
problem may be caused by damage to the cooling fan or temperature 
sensor. Contact Epson for help as described on page 78.
Warning: Except as specifically explained in this User’s Guide, do not 
attempt to service this product yourself.
Flashing orange It’s time to replace the lamp. See page 62 for instructions. If you continue 
to use the lamp after the replacement warning, there is an increased 
possibility that the lamp may break.
Flashing red The lamp may be burnt out. First make sure the lamp cover is securely 
installed. If that’s not the problem, let the lamp cool, remove the lamp, 
and replace it as described on page 62. If this does not resolve the 
problem, contact Epson as described on page 78.
Flashing red Power is cut off because of an internal problem. Unplug the power cord 
and contact Epson for help, as described on page 78.
Status lights
Light Status Description
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