Sony DVS-7250 User Manual page 113

Operation software, digital video switcher system
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4
On the DME, set up the required processing to be carried out on the key
fill signal (PROCV) and key source signal (PROCK).
In the DME IN/OUT menu, set the front and back key modes to
"External", and set both clip and gain for the external key signal to 0.00
on the DME. This is to prevent the PROCK signal level from being
affected by a DME external key signal (that is, to obtain the through
output from the keyer for the external key).
For details of the operations on the DME, refer to the DME User's
Guide.
5
To carry out clean key processing on the return signals (DMEV and
DMEK) from the DME, press F9 (CLEAN KEY), turning it on.
6
Press F10 (KEY ADJUST) to select the method of adjustment of the
DME return signals. Pressing F10 toggles between PRESET and
VARIABLE.
PRESET: the clip level and gain are automatically adjusted to preset
values suitable for using the output key signal from the DIGITAL
OUTPUTS connectors on the DME on the switcher.
VARIABLE: selecting this allows manual adjustment of the clip level
and gain.
Knob
Parameter
1
Clip
2
Gain
Notes
• For each M/E bank or the DSK block, the processed key uses the
following of the two channels selected by the DME IF item in the
SETUP menu (see page 13-39): for keyer 1, odd-numbered channels
(either DME 1 or 3), and for keyer 2, even-numbered channels (either
DME 2 or 4).
• For each M/E bank or the DSK block, if a DME wipe and processed
key use the same DME, the one which was selected first takes
precedence.
Setting
Set clip level on the key signal (0.00 to 100.00)
Set key gain (0.00 to 100.00)
Chapter 4 Basic Operations for Image Creation
(Continued)
4-53

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