Ask Proxima C300 Projector User Manual


 
USER GUIDE LCD PANEL
13
CONTRAST
The contrast of an image is defined as the relation between dark and light
colors. An image of high contrast is often regarded as 'hard', as compared
to the 'soft' feeling of a low contrast image. Low contrast is recommended
for long term viewing, while high contrast is used to enhance details. Use
the CONTR keys on the remote control (RC) to adjust the contrast. Also
see Brightness. The contrast setting is stored individually for each mode.
BRIGHTNESS
The brightness is the amount of white in an image. The brightness is
adjusted to the ambient lighting conditions. Use the BRIGHT keys to adjust
brightness. See also Contrast. The brightness setting is stored individually
for each source.
FREQUENCY
This setting is usually not changed by the user. It is however provided in
case of adaptation to special graphic cards that are close to one of those
in the compatibility list. Generally, an incorrect frequency setting can be
observed as an image too wide or too narrow, combined with vertical,
unstable bands.
TUNE
This feature is used to stabilize the image. An untuned image can be seen
as sideways instability or swimming.
BLACK
Use the BLACK key on the RC, if you temporarily want to suspend the
display of images. The BLACK key is a toggle function, and the screen
goes black when activated. Blanking the image is done using the ON/OFF
key. Any key pressed will release BLACK.
MAC LC
The MACII series of computers are equipped with slightly different graphic
interfaces that need manual setup on the RC to work correctly. Default is
the MACII standard interface of 640 x 480 resolution. Pressing the MAC
key toggles between the MACII LC 640 x 480 mode and the standard
mode. An erroneous setting will typically be seen as an image too wide or
too narrow, as well as vertical unstable bands.
REAR
The REAR mode is used for rear projection , i.e. projection from the back
of a screen, mirroring the image.