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HD5050
SECTION 4
HD5050070999 Version 1 Issue 4
For Software Version Z5 onwards
4.4
USING THE DEDICATED PUSH BUTTONS
m
Various specific operations may be carried out by
using these push buttons to access particular
functions.
When pressed the relevant menu will appear in the
display window and the button LED (if appropriate)
will become illuminated, indicating that the function
is active.
m
INPUT
This button will display a list of input signal
selections available.
Input formats that may be selected are:
Auto
The unit will automatically interrogate
the Serial and Parallel inputs. When a
valid input signal is detected this
signal will be selected as the input.
Parallel
Select Parallel Digital video input
Serial
Select Serial Digital video input
In Auto mode the HD5050 scans the parallel and
serial inputs until a valid signal is found.
The selected input will be indicated on the display
with a line above and below the text as shown
below where the serial input has been found.
Auto
Parallel
Serial
Input Std
The input standard selection may be set using the
spinwheel immediately below the list. Selections
are for Auto select, force 525, 625, 625/24P, or
625/23.98P. The force positions may be used
where the input standard is known otherwise the
Auto position (which automatically senses the input
standard) should be used.
Note that the 625/24P and 625/23.98P standards
are not auto detected so that, if these input
standards are applied, the input standard must be
forced using this menu.
The HD5050 assumes that the input data uses the
normal Rec656 data format but uses a reduced
clock frequency (12.96 MHz for 24 Hz inputs and
12.947 MHz for 625/23.98 Hz inputs).
By default the HD5050 will assume that the input
data of these standards is 2:2 frame based.
Preset selects the Auto position.
Y/C Delay Timing
The relative timing between the luminance signal
and the chrominance signal may be adjusted with
these controls.
The Horizontal Delay will change the horizontal
timing (left/right) by +600 ns to -450 ns in steps of
1 ns.
A positive value of delay will shift the chrominance
signal to the right of the luminance and a negative
value will shift the chrominance to the left of the
luminance.
The luminance signal will remain stationary.
The Vertical Delay will change the vertical timing
(up/down) by up to ±4 Standard Definition TV lines
in steps of 1 line.
A positive value of delay will shift the chrominance
signal up the picture and a negative value will shift
the chrominance down the picture.
The luminance signal will remain stationary.