Epson Powerlite 755c Multimedia Projector Users Guide

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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 network problems
■Solving EasyMP problems
■Solving problems with the remote control
■Contacting technical support 

152Solving 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:
■Problems with image
■Problems with sound
■Problems with source search
■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...

Solving Problems153
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...

154Solving 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 166.
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...

Solving Problems155
Viewing Lamp Usage and Other Information
Use the Info menu to view information about the display settings of 
your computer and the number of hours the lamp has been used. 
Press the 
Menu button and highlight the Info menu. 
You see the lamp usage hours and various input signal settings on the 
right. 
The life span of the lamp is about 2000 hours if the 
Brightness 
Control
 setting in the Setting menu is set to High (default), and 
3000 hours if the 
Brightness Control setting is...

156Solving Problems
Solving Problems with the Image 
or Sound
No image appears on the screen.
■Check that the Power light is green, not flashing, and the lens 
cap is off. 
■The projector may be in standby or sleep mode. If the Power 
light is orange, press the P
Power button to turn the projector 
on.
■If the power was switched off and then on again, the projector 
may be cooling down. Wait until the 
Power light stops flashing 
and remains orange; then press the P
Power button again.
■Press the A/V...

Solving Problems157
If you’re using a PC notebook:
■Hold down the Fn key on the keyboard and press the function 
key that lets you display on an external monitor. It may have an 
icon such as  , or it may be labelled 
CRT/LCD. Allow a few 
seconds for the projector to sync up after pressing it. Check your 
notebook’s manual or online help for details. 
On most systems, the   key lets you toggle between the LCD 
screen and the projector, or display on both at the same time.
■Depending on your computer’s...

158Solving Problems
The message Not Supported is displayed.
■Make sure the correct input signal is selected in the Signal menu 
(see page 111).
■Make sure your computer’s resolution doesn’t exceed UXGA 
(1600 
× 1200) and the frequency is supported by the projector 
(see page 177). If necessary, change your computer’s resolution 
setting as described below. 
Only part of the computer image is displayed.
■Press the Auto button on the remote control.
■Make sure the image Position setting is correct on the...

Solving Problems159
The image isn’t square, but keystone-shaped.
■If the top or bottom of the image is broader, press the   or   
button on the projector until the image is square.
■If the projector is angled toward the screen from the left or right, 
the image will be broader on one side. Center the projector in 
front of the middle of the screen, facing the screen squarely. 
The image contains static or noise.
■If you’re using a computer cable longer than 6 feet, or an 
extension cable, the image...

160Solving Problems
You see vertical bands or the image still looks blurry after 
trying the solutions in the previous section.
■If you’re projecting from a computer and displaying an image that 
contains a lot of fine detail, you may notice vertical bands or some 
of the characters may look heavy or blurred. Press the 
Auto 
button on the remote control to reset the projector’s tracking and 
sync settings.
■If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually...