Epson Powerlite 835p Multimedia Projector Users Guide

101
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 problems with the image or sound
■Solving problems with EasyManagement
■Solving problems with the remote control
■Contacting technical support
Users Guide.book  Page 101  Tuesday, May 25, 2004...

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:
■Problems with image
■Problems with sound
■Language change 
Follow these steps to get help:
1. Press the blue 
? Help button 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...

Solving Problems103
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...

104Solving Problems
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....

Solving Problems105
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...

106Solving Problems
■Try restarting your computer.
■If you’ve connected a computer and one or more video sources, 
you may need to press one of the 
Source buttons on the projector 
or remote control to select the correct source. Allow a few seconds 
for the projector to sync up after pressing the button.
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...

Solving Problems107
5. Select one of the listed Simulscan resolutions. (Allow a few 
seconds for the projector to sync up after making the selection.)
The message Not Supported is displayed.
■Make sure the correct input signal is selected in the Signal menu 
(see page 63).
■Make sure your computer’s resolution doesn’t exceed UXGA 
(1600 
× 1200) and the frequency is supported by the projector 
(see page 119). If necessary, change your computer’s resolution 
setting as described below. 
Only part of the...

108Solving Problems
The image isn’t square, but keystone-shaped.
■If the top or bottom of the image is broader, press the Sync + or 
Sync - 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. If this 
doesn’t work, press the 
Tracking + or Tracking - button on the 
projection until the image is square.
■If the...

Solving Problems109
■Adjust the Sharpness setting on the Image menu (see page 62). 
When you change video settings, you should be able to see the 
effect on the screen immediately. If you’re projecting from a 
computer, you may also need to adjust the tracking and sync as 
described in the next section. If you don’t like the new settings, 
you can always select 
Reset to return to the factory default 
settings.
You see vertical bands or the image still looks blurry after 
trying the solutions in the...

110Solving Problems
The image colors are incorrect.
■If you’re displaying a computer image, use the Color Mode 
option in the projector’s Image menu to adjust the color. If you’re 
displaying video, adjust the 
Color Adjustment and Color Mode 
settings on the Image menu.
■Check your computer display settings to correct the color balance.
There is no sound.
■Make sure A/V Mute is not enabled. (The A/V Mute button may 
have been pressed.) 
■Try adjusting the Volume setting in the Setting menu (see 
page...