User guide

51
Auto Adjustment Options
Each of the “switches” in Auto Options can be
turned on or off by selecting it (up-down arrows) and
pressing
ENTER. When the box is checked, ;, the
action will occur under these circumstances:
• When a new source is detected that has not been
detected before. (See ’About the cache’ on this page
and “To save settings” on page 26.)
• When you press the
SETUP button.
Search on lost signal occurs only when the present
signal (picture) disappears. When this happens, the
Bay Cat will look at the other connectors to find a
valid picture.
Note that searching will not happen just because
the picture goes black. Black, from video or from a
computer, is a valid picture. The signal itself (the
sync pulses) must be lost to trigger a search.
The several Do items in this menu will, if checked,
happen in these situations:
• If a new signal is acquired, either through a search
to a different connector or because source picture
changed modes, such as from WXGA to UXGA,
each of the checked items occurs in the order
listed in the menu.
•When you press the
SETUP button on the remote,
each of the checked actions occurs in the order
given in the menu.
Do Quick Black/White Levels searches for the
brightest and darkest pixels in the picture and adjusts
to these. Black and White Levels are best done semi-
automatically (see “Adjusting Levels, Computer
Sources” on page 36) so leave this unchecked.
Do Frequency and Do Phase find the frequency and
phase (separately) of the computer picture and adjust
to them. This works best on a picture that has lots of
sharp changes in brightness, such as text (adjacent
white and black pixels).
Do Position centers the picture on the screen.
About the cache
The Bay Cat has a cache for storing the most
recent attributes of the pictures it displays. When a
new picture arrives that is near enough to a previous
type, it uses the stored attributes rather than auto-
matically adjusting brightness, contrast, frequency,
etc.
For example, suppose the Bay Cat sees an analog
WXGA picture and auto-adjusts everything in the
Auto Options Menu. Then you change the Brightness
and Contrast. Then you change computers and feed
in a UXGA picture.
If you now switch back to the computer with the
WXGA picture, Bay Cat will use the Brightness, Con-
trast, as well as other settings, from the last time it
saw a WXGA picture.
 Aspect Ratio is global, which means it applies to all
input types. It does not change when the system recalls
a memory from cache.
Setup button
The
SETUP button on the remote starts the “Do”
processes. Each Do that is checked
; will begin, one
at a time, until all are adjustments completed.
Locking the settings
In the Picture menu, checking Lock Settings
immediately unchecks all the items in the Auto
Setup Options. This effectively locks the settings.