Ross Synergy MD, Инструкция по эксплуатации, Страница: 200 / 388

7–30 • BNC Configuration and Check Synergy Q/MD Engineering Manual (v9.1 MD)
8. If the Key Alpha and Fill sources are correct, but the Key does not appear correct
visually , check the following “mode” assignments:
• If you selected
Unshaped
and the alpha signal is actually
Shaped
, you will see
black edges around the Keyed image.
• If you selected
Shaped
and the alpha signal is actually
Unshaped
, you will see
illegal video and other spikes on the waveform monitor.
Re-assign the mode if required and re-check the visual appearance of the Key.
9. If the Key Alpha and Fill sources are correct, but the edges or shadows of the Key do not
appear correct visually (as compared to the direct CG output), you may need to adjust
the factory default Clip and Gain settings as shown in the Scroll Area of the Auto Key
Setup Menu .
By default, the labels in the Scroll Area both indicate
Locked
for the selected Key.
This shows that the factory default settings for the selected alpha-fill pair are being used
and that the
Clip
knob and
Gain
knob are both disabled.
To change the factory default settings for the selected Key:
a) Press
KEY MEM
. The
Locked
labels disappear as shown below.
Auto Key Setup Menu — Clip and Gain Enabled
b) Use the Clip knob to adjust the clip threshold of the Key, until the desired visual
appearance is achieved.
c) Use the Gain knob to adjust the gain of the Key until the desired visual appearance
is achieved.
d) To store the new settings in memory, press and hold AUTO SELECT , press KEY
MEM and release both buttons. Then press KEY MEM .
The Locked labels reappear, the clip and gain controls are locked at the new settings
and each setting is stored in switcher Key memory. These settings will now be used each
time the selected auto Key is used on air.
10. Repeat steps 2 through 9 for each alpha-fill pair assigned on your Key Bus .
This completes the procedure for checking your keys.