Electrohome Marquee Ultra Series User Manual page 60

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OPERATION
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Size
The Size function is used to adjust the horizontal and vertical size of the
display image. (This adjustment is also available through the Geometry
menu.)
To adjust size, select Size from the Picture menu. TWOslidebars are
displayed: a Horizontal Size slidebar and a Vertical Size slidebar. Press B or
~ to adjust vertical size and@ or D to adjust horizontal size until the objects
within your picture have the proper shape. For example, if there is a circle in
your picture, size should be adjusted so that the circle is round, not oval.
Note: The Size ji.mction should not be used to compensate for aspect ratio
mismatches between source images and the projection screen.
Not all sources
use the same aspect ratio therefore it may not always be possible to fill the
entire screen. ("Aspect Ratio" is defined in Appendix A).
White Balance
The White Balance function is used to select or adjust the color temperature
(or shade) of white used by the projector. For most applications, the white
balance setting set by the factory is satisfactory.
To select or adjust the white balance, select White
Balance from the Picture menu. From the White
Balance menu, select item 1, 2 or 3 to use a
standard color temperature. Select option 4 to use
the service adjusted user setting. Select option 5
to make a custom white balance adjustment. The
current selection is indicated by a check mark. If
option 5 is selected, a White Balance slidebar is
displayed. Press B or lZl to adjust white balance.
O% is 3200K, 50% is 6500K, and 100% is 9300K.
Focus
1. 3200 K (reddish)
2.#6500 K (white)
3. 9300 K (bluish)
4. User Setting
5. Customize White
I
/ indicates active
The Focus function is used to adjust the electrical focus of the combined red,
green, and blue color components.
To adjust focus, select Focus from the Picture menu then use (2!land m until
the center of the display appears the sharpest. If the displayed image cannot
be adequately focused, a service adjustment to the electrical focus may be
required or an optical focus adjustment is necessary. Refer to the section 2.8,
Optical Alignment
for optical focus instructions.
Sync (FastLSlow)
The Sync function is used to minimize horizontal jittering, "flag waving" or
tearing at the top of the display image.
This effect sometimes occurs when
the source is a VCR or video signal. The function changes the
synchronization mode of the projector from fast to slow, or slow to fast.
3-18
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