Epson EMP-821 User Manual

Page of 114
Solving Problems
87
You see vertical stripes, flickering, 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 one or more vertical 
stripes or bands, or some of the characters may look heavy or 
blurred. Press the 
Auto
 button on the remote control. This resets 
the projector’s tracking and sync settings.
If further adjustment is needed, you can fine-tune the 
Tracking
 
and 
Sync
 settings manually using the Signal menu as described 
1. Fill the screen with an image containing fine detail when 
making these adjustments. For example, in Windows you can 
select a pattern to appear as your desktop background. Or try 
projecting black text on a white background.
2. Adjust the 
Tracking
 to eliminate vertical stripes. 
3. Adjust the 
Sync
 to increase the sharpness of the image or 
eliminate flickering or signal interference.
The colors of the image are not right.
Make sure the input signal setting on the Signal menu matches 
the signal from the connected device. If the image is too purple 
and you’ve connected a computer or RGB video device to the 
Computer1/Component Video1
 or 
Computer2/Component 
Video2
 port, select 
Computer1
 or 
Computer2
 as the input 
source. If you’ve connected a component video device to one of 
these ports, select 
Component
 
Video1
 or 
Component Video2
If you’re projecting from a composite video or S-video source, 
make sure the correct 
Video Signal
 is selected on the Signal 
message. See page 55 for details.
Try selecting a different Color Mode. See page 54 for 
instructions.
If you’re displaying video, adjust the 
Color
 
Intensity 
and 
Tint
 
settings on the Image menu. See page 54 for instructions.
Adjust the 
Brightness
 and 
Contrast
 settings on the Image 
note
For best results, adjust 
tracking before you adjust 
sync.
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your notebook or computer 
monitor.