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Epson EX21 User Manual

Epson EX21
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Solving Problems 75
If the projector is angled sharply toward the screen, it may not be
possible to focus the entire image. Move the projector to position
it more directly in front of the screen.
Lower the projection angle to reduce the amount of keystone
correction required.
Make sure the projector is within the proper range (projection
distance) from the screen (see page 15).
Make sure the lens is not fogged by condensation. You may need
to wait before using the projector after moving it from a cold
environment to a warm environment.
If you’re projecting from a computer, you may need to adjust the
tracking and sync settings as described in the next section.
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 or the
Enter button on the
projector to reset the projector’s Tracking, Sync, and Position
settings.
If further adjustment is needed, you can fine-tune the Tracking
and
Sync settings manually using the Signal menu, as described
on page 48.
1. Fill the screen with an image containing fine detail, such as a
pattern to appear as your desktop background, or try
projecting black text on a white background.
2. Adjust the
Tracking to eliminate vertical bands.
note
You must be projecting an
image for the
Auto button
to have any effect. It works
only with computer images
projected through the
Computer (Component
Video) port.

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Epson EX21 Specifications

Projection IconProjection
projection systemEpson 3LCD, 3-chip technology
white light output2200 lumens
color light output2200 lumens
aspect ratio4:3
native resolution800 x 600 (SVGA)
resize resolution640 x 480 (VGA)
contrast ratio2000:1
Power IconPower
power supply voltage100 – 240 V ±10%, 50/60 Hz
power consumption246 W, 3 W standby
lamp type170 W UHE
Operating Environment IconOperating Environment
operating temperature41 ˚ to 95 ˚F (5 ˚ to 35 ˚C)
lamp life in ECO modeUp to 4000 hours
lamp life in normal modeUp to 3000 hours
fan noise in normal mode35 dB
fan noise in ECO mode28 dB
Lens IconLens
lens typeDigital zoom/Manual focus
f-number1.44
focal length16.6 mm
zoom ratioDigital zoom 1.0 – 1.35
Weight and Dimensions IconWeight and Dimensions
dimensions including feet12.9" x 9.6" x 4.0"
dimensions excluding feet12.9" x 9.6" x 3.6"
weight6.0 lb

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