Epson Powerlite 735c Multimedia Projector Users Guide

							Maintaining the Projector95
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 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).
3. If the dirt is difficult to remove or if the filter is broken, replace it. 
Contact your dealer or call EPSON at (800) 873-7766 in the 
United States to obtain a new one. In Canada, please call 
(800) 463-7766 for dealer referral.
To remove the filter, lift up the tab as shown below to release it.
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. 
						

							96Maintaining 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 projection image gets darker or starts to deteriorate.
■The lamp warning light   is red or flashing red.
■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 for dealer referral
Follow these steps to replace the lamp:
1. Turn off the projector, wait for it to cool down (when the light 
stops flashing), then unplug the power cord.
2. Allow the projector to cool for at least half an hour (if it has been 
on).
3. Turn the projector over, then release the tabs to remove the cover.
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.
If your projector is mounted 
on the ceiling, you should 
unmount it before accessing 
the lamp compartment. This 
makes it easier for you to 
replace the lamp and 
minimizes the chance of any 
small glass fragments 
dropping from the projector. 
						

							Maintaining the Projector97
4. Use a screwdriver to loosen the two silver screws holding the lamp 
in place. (You can’t remove these screws.)
5. Grasp the lamp as shown and pull it straight out.
6. Gently insert the new lamp. 
7. Once the lamp is fully inserted, tighten its screws.
8. Replace the lamp cover. (The projector won’t come on if the lamp 
cover is loose.)
Continue on to the next section to reset the lamp timer. 
caution
Do not touch the glass 
portion of the new lamp 
assembly. Touching the glass 
could result in premature 
lamp failure. 
						

							98Maintaining the Projector
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menu. 
1. Press the 
Menu button on the remote control. You see the main 
menu.
2. Use the arrow buttons on the remote control to highlight 
About. 
You see the lamp usage hours and other settings:
3. Press 
Enter to select the About menu.
4. Select 
Reset Lamp Timer, then press Enter. You see this 
prompt:
5. Select
 Yes, then press Enter.
6. When you’re finished, press 
Esc or Menu to exit. 
Lamp usage 
						

							Maintaining the Projector99
Transporting the Projector
The projector contains many glass and precision parts. If you need to 
transport it, 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 a long distance, 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 storing the projector, follow these guidelines:
■To avoid damage, make sure the 802.11b card is removed from 
the card slot before placing the projector in a box or carrying case.
■Also make sure the button next to the card slot is pressed in before 
storing the projector. 
note
EPSON shall not be liable 
for any damages incurred 
during transportation.
Push button in 
before storing 
projector 
						

							100Maintaining the Projector 
						

							Solving Problems101
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. 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 problems with EasyMP
■Contacting technical support 
						

							102Solving 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:
■Help for the image
■Help for the sound
■Language selection (Language)
Follow these steps to get help:
1. Press the blue 
? Help button on the projector. 
You see the Help menu:
2. Use the arrow buttons on the remote control or the 
Select 
buttons on the projector to highlight menu items.
3. After highlighting a menu item, press the 
Enter button on the 
remote control or on the projector to select it. 
4. 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.
Help button on projector
doesnt 
						

							Solving Problems103
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, let it cool, 
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 on the 
following pages.
Refer to the following table for a complete description of the 
projector’s status lights and their meaning:
Power lightLamp/temperature light
Status lights
Light Status Description
orange The projector is in sleep mode. You can unplug it or press the 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. 
flashing red 
(half-second 
intervals)The lamp may be burned out. First make sure the lamp cover is securely 
installed. If that’s not the problem, remove the lamp and replace it as 
described on page 96.
flashing red 
(1-second 
intervals)Power is cut off because of an internal problem. Remove the power cord 
and contact EPSON for help. 
						

							104Solving Problems
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.
flashing orange The projector is too hot. Make sure the temperature surrounding the 
projector does not exceed 95 
°F (35 °C) and there is plenty of space 
around and under the projector for ventilation. 
The air filter may be clogged. Clean or replace it as described on page 95. 
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 
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 filter may be clogged. Clean or replace it as described on page 95.
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.
Warning: Except as specifically explained in this User’s Guide, do not 
attempt to service this product yourself.
Status lights
Light Status Description