Epson PowerLite 77c User's Guide - Page 62

lamp brightness when the projection is too bright, for the room.

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note To cancel the Operation Lock function from the projector, press the Enter button for about seven seconds. 3. Press Enter. Then use the up and down arrow buttons and the Enter button to set the following options: ■ Keystone Adjusts a distorted image from a trapezoid shape to rectangular. ■ Auto Keystone (PowerLite 77c only) Automatically adjusts a distorted image from a trapezoid shape to rectangular when the projector's foot is extended or retracted. (Not available when you're projecting from the ceiling or using rear projection.) Select ON or OFF. ■ Zoom (PowerLite S5 Series only) Adjusts the image size from Wide (larger) to Tele (smaller). ■ Operation Lock When turned on, this function disables all projector buttons, or all buttons except the P Power button. Changes to this setting take effect after you restart the projector. (After you turn off the projector, wait for the Ppower light to turn a steady orange before turning it on again.) See page 71 for more information. ■ Brightness Control Select Low lamp brightness when the projection is too bright for the room. The Low setting also reduces electricity consumption and fan noise. Select High to project the maximum brightness. (Also check the Brightness setting in the Image menu; see page 56.) ■ Volume Adjusts the volume for the projector's speaker. 4. When you're finished, press Esc or Menu. 62 Fine-tuning the Projector

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62
Fine-tuning the Projector
3.
Press
Enter
. Then use the up and down arrow buttons and the
Enter
button to set the following options:
■
Keystone
Adjusts a distorted image from a trapezoid shape to
rectangular.
■
Auto Keystone (PowerLite 77c only)
Automatically adjusts a distorted image from a trapezoid
shape to rectangular when the projector’s foot is extended or
retracted. (Not available when you’re projecting from the
ceiling or using rear projection.) Select
ON
or
OFF
.
■
Zoom (PowerLite S5 Series only)
Adjusts the image size from
Wide
(larger) to
Tele
(smaller).
■
Operation Lock
When turned on, this function disables all projector buttons,
or all buttons except the
P
Power
button. Changes to this
setting take effect after you restart the projector. (After you
turn off the projector, wait for the
P
power light to turn a
steady orange before turning it on again.) See page 71 for
more information.
■
Brightness Control
Select
Low
lamp brightness when the projection is too bright
for the room. The
Low
setting also reduces electricity
consumption and fan noise. Select
High
to project the
maximum brightness. (Also check the
Brightness
setting in
the Image menu; see page 56.)
■
Volume
Adjusts the volume for the projector’s speaker.
4.
When you’re finished, press
Esc
or
Menu.
note
To cancel the Operation
Lock function from the
projector, press the
Enter
button for about seven
seconds.