Casio XJ-S30 - XGA DLP Projector User's Guide download pdf (Page 23)

E-23

Projector Basics

English

Auto Adjustment of an RGB Image

When the input source is RGB (computer), the projector automatically adjusts vertical and

horizontal positioning, frequency, and phase whenever it detects an RGB signal (following input

source selection, power up, etc.). You can also execute an automatic adjustment operation by

pressing the [AUTO] key.

z You can turn off auto adjustment when you want to disable auto adjustment and maintain

manual settings.

z The projected image may become distorted while an auto adjustment operation is in

progress.

z If an image is unclear following the auto adjustment operation, you can use the menu to

adjust items manually.

When the projector is at an angle to the screen it is projecting on, the projected image may

have different length top and bottom edges. This phenomenon is called, “keystoning”. This

projector comes with functions for automatic as well as manual keystone correction, which

provides a regularly shaped projected image.

z Keystone correction can cause the corrected image to be smaller than the original

(uncorrected) image, or it can cause distortion of the image. If the projected image

becomes difficult to view, try moving the screen and/or projector so they are oriented close

to the configuration shown under “Setting Up the Projector” on page E-14.

z The projector does not support horizontal keystone correction. The center of the projector’s

lens should be aligned with the horizontal center of the screen (page E-14).

Automatic Keystone Correction

When “On” is selected for the “Option Settings 1 

Auto Keystone Correction” setting of the Setup Menu,

the projector will detect the vertical orientation of the

object in the image and adjust its shape automatically

so it appears as a rectangle. The message “Auto

Keystone Corrected.” appears in the lower left corner of

the projected image when the projector performs auto

keystone correction.

z The correction range is 0° to +30°.

z Auto keystone correction is performed by detecting the elevation angle of the projector. This

means that the surface you are projecting onto needs to be standing straight up. If the

surface you are projecting onto is not straight, use manual keystone correction to correct

the image.

To use manual keystone correction

1. Press the [KEYSTONE +] or [KEYSTONE –] key.

z This causes the keystone correction screen to appear on the projected image.

2. Use the [KEYSTONE +] and [KEYSTONE –] keys to correct for keystoning.

z Correction can be performed for keystoning within ±30°.

3. To close the setup screen, press the [ESC] key.

Keystone Correction (KEYSTONE)

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