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Epson EX21 User Manual

Epson EX21
96 pages
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74 Solving Problems
If you’re projecting an image from a computer with dual display
activated, turn dual display off.
The image isn’t square, but keystone-shaped.
If the image isn’t evenly rectangular, adjust its shape as described on
page 33.
The image contains static or noise.
If you’re using a computer cable longer than 6 feet (1.8 meters),
or an extension cable, the image quality may be reduced.
Keep your computer and video cables away from the power cord
as much as possible to prevent interference.
The video signal may be split between the computer and the
projector. If you notice a decline in the projected image quality
when the image is displayed simultaneously on your notebook
computer and the projector, turn off the notebook’s LCD display.
Make sure the correct input signal is selected in the Signal menu
(see page 48).
If you’re using a composite, S-Video, or component video source
with 480i signals, turn on the
Progressive setting on the Signal
menu (see page 48).
If you’ve used the Keystone adjustment, you may need to decrease
the
Sharpness setting in the Image menu (see page 46).
If you’re projecting from a computer, make sure its signal is
compatible with the projector. See page 84.
If you’re projecting from a computer, press the Auto button on
the remote control to reset the projector’s Tracking, Sync, and
Position settings
The image is blurry.
There may be dirt or smears on the lens. Clean the lens as
described on page 58.
Adjust the focus using the focus ring (see page 34).

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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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