INSTALLATION
page 9
The MVS must have a valid terminated composite source connected to its genlock
input and a valid test signal (preferably color bars) coming into an input from the
same reference source (sync generator).Verify that the MVS sync source
command #6 is set to genlock (this is it's factory default).
Select the reference source (color bars) that you are going to time the MVS to on
all busses. Turn command 9 off and on to observe the difference between the
switchers processed sync and the sources sync.
IMPORTANT: Do not cut between this source and bus black as you may be
accustomed to on other switchers, leave your reference source selected on all
busses and simply toggle command 9 off and on!
Turn calibration mode on (100 C) and select command 107 for NTSC
systems adjust the CLIP knob to change burst phase. For PAL systems this will
adjust burst angle. To adjust burst phase in PAL the BORDER knob must be
adjusted. Using the MVS sync proc command 9 to observe any error match the
MVS burst phase to the genlock reference.
Adjust the MVS horizontal with calibration command 109. To adjust horizontal
phase adjust the CLIP knob.
The MVS SCH phase is set by the relative position of burst phase and horizontal
phase. Assuming the reference is in correct SCH phase if the above calibrations
have been performed correctly the MVS should be in correct SCH phase. If it is
not recheck the calibrations above and / or move the horizontal phase command
slightly to achieve proper SCH phase.
For PAL systems only:
The MVS PAL phase can be set one of two ways. The
burst vectors can be swapped with command 107 or a jumper on the genlock
daughter card on the CPU board can be moved. Adjusting command 107 is the
method that maintains the integrity of the 8-field sequence.
After the MVS sync proc has been timed to house reference you may want to save
these calibrations to the user calibration register. Command 401 will save these
and all current calibration values to the user cal area. You will probably want to
record these values. One suggestion is to note them on the inside of the chassis
door where the factory calibration printout is located.
3. Where should I connect my key cuts and fills ?
The answer to this question, anywhere!, points out some of the outstanding
features of the MVS series switcher. The MVS keyers can select any key input,
optional chromakey, or bus input for its cut source and any bus input, DSK fill, or
internal colorizer for it's fill source. There is no need for any external delays,
