Epson Projector Powerlite 50c User Manual

46Maintaining and Transporting the Projector
Cleaning the Lens 
Clean the lens whenever you notice dirt or dust on the surface.

To remove dust, use a canister of compressed air to spray the lens 
surface, or lightly wipe the lens surface with a soft, dry, lint-free 
cloth. 

To remove dirt or smears, use lens-cleaning paper. If necessary, 
moisten a soft cloth with an alcohol-based cleaner and gently wipe 
the lens surface.
Cleaning the Projector Case
Before you clean the projector case, turn off the...

Maintaining and Transporting the Projector47
Cleaning the Air Intake Vent
Clean the air intake vent after every 100 hours of use, or if the
 
Error light on top of the projector turns red. 
If the vent is not cleaned periodically, it can become clogged with 
dust, preventing proper ventilation. This can cause overheating and 
damage the projector. Follow these steps to clean the vent:
1. Turn off the projector, let it cool down, and unplug the power 
cord.
2. Stand the projector on its back panel with...

48Maintaining 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  Error light on top of the projector is flashing red in 
1-second intervals. 

The LAMP REPLACE message appears on the screen when the 
projector lamp comes on (after about 1500 hours of use). To 
maintain projector brightness and image quality, replace the lamp 
as soon as...

Maintaining and Transporting the Projector49
5. Use a screwdriver to loosen the two lamp cover screws; you can’t 
remove the screws. Then pull out the lamp by the two notches. 
6. Position the new lamp correctly, then gently insert it into the 
projector. Press it into place and tighten the retaining screws. 
7. Insert the lamp cover as shown and press it back into place. 
8. Follow the instructions in Chapter 3 to access the projector’s 
About menu and reset the lamp counter to zero.
caution
Make sure...

50Maintaining and Transporting the Projector
Transporting the Projector
The projector contains many glass 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, 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 as freight or checked...

5
Solving Problems51
Solving Problems
This chapter helps you diagnose and solve problems with your 
projector and provides technical support information for problems 
you can’t solve yourself. 
This chapter tells you how to:

Use the projector’s on-screen help system

Check the projector’s status using its lights

Solve image or sound problems 

Solve remote control problems
If none of the suggestions here solve the problem, see “Where To Get 
Help” on page 58.
Using the On-Screen Help 
If you have a...

52Solving ProblemsThe following choices are available:

Help for the image
Tells you how to solve problems with a blank screen, blurry 
images, brightness, colors, and image shape

Help for the sound
Provides help for problems with lack of audio

Language Selection
Lets you choose to display the help information and projector 
menus in any of 8 different languages.

Return
Exits the help system.
Follow these steps to get help:
1. Press the 
? Help button. You see the main help menu.
2. To select the help...

Solving Problems53
Checking the Projector’s Lights
If your projector isn’t working correctly, first turn it off, wait for it to 
cool, 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. They alert you to problems with projector operations.
warning
Except as specifically 
explained in this User’s 
Guide, do not attempt to 
service this product yourself.
Power light
Error light
LightStatusDescription and...

54Solving Problems
Image or Sound Problems
No image appears or the No Signal message is displayed.

Check that the Power light is green and not flashing and the 
lens cover is off. If the 
Power light is orange, the projector is 
in sleep mode; press the 
Power button to wake it up.

Your computer’s screen saver may be on. Press a key on the 
computer keyboard.

The A/VMute feature may be turned on. Press the A/VMute 
button on the remote control to turn it off, if necessary.

Make sure the cables are...

Solving Problems55
Only part of the computer image is displayed.

If the computer’s output resolution setting is higher than 
800
×600 for the (EPSON PowerLite 50c) or 1024×768 for the 
(EPSON PowerLite 70c), the image is resized. If the computer 
output is not compatible with this resizing, choose a different 
display setting as follows:
Windows: In Windows 95/98/Me/2000, right-click on the 
desktop, select 
Properties, click the Settings tab, and select the 
resolution you want. In Windows 3.x, use...