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OSD label
Use the On-Screen Display (OSD) label menu to determine the time allotment for an input
label or a user defined OSD label. Input labels are generic labels shown for inputs 1, 2 and
3. For input 4, the user can create a custom OSD label to display.
The OSD labels are displayed (white box, black text) in the top left corner.
The OSD label can be turned off by setting its duration to Off from the Advanced
Configuration menu.
For OSD text, note the following:
•
Line 1 displays the input number.
•
Line 2 displays the input type.
•
Line 3 displays a text label that you can define (input 4 only).
The display time can be set from 0 to 5 seconds in 1 second steps (default is 2 seconds).
Test pattern
Test patterns are useful for calibrating a display to the DVS 304 output. Choose a test
pattern to adjust the image using built in crop, alternating pixels, and color bars.
NOTES:
•
Alt Pixels — Used to calibrate display devices input sampling to the output of
the DVS 304. Use this pattern to adjust the clocking and phasing at the display
until no more vertical bands are visible.
•
Crop — Used to center the output on the display device: adjust H and V center
on the display until all four crop lines are visible.
•
Color Bars — Used to calibrate color settings on the display and to confirm
proper system wiring.
Enhance mode
When the
mode is set to
Enhance
signal is enabled. If the input signal level is too weak, signal gain is increased, and if the
input signal level is excessive, signal gain is decreased.
Using either the
Adjust horizontal
or
as desired. The default is
On
Off
Refresh Lock
When
is enabled, the vertical output rate is locked to the current vertical
Refresh Lock
refresh rate of the input to prevent tearing or stuttering associated with frame conversion.
This mode should be activated only when excessive stuttering or tearing is being
experienced with an input signal.
Because the vertical sync of the output is linked to the current vertical sync of the
input while in the
Refresh Lock
whenever a new source is applied to the scaler, or whenever a new input is selected. This
is caused by the scaler instantly locking its refresh rate to that of the new input signal.
NOTE: The output refresh rate must be set equal to or greater than the incoming
refresh rate of the video or no video output will be displayed. If the incoming vertical
rate of the video differs significantly from the set output refresh rate, no video will be
displayed.
, automatic gain control of the low resolution input
On
([) or
Adjust vertical
.
Off
mode, there may be a slight glitch in the output sync
DVS 304 Series • Operation
({) knob, select either
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