Ross SYNERGY 4000DR-003, Operation Manual, Page: 103 / 332

Synergy Series Operation Guide (v18) Switcher Basics • 4–25
Use the following procedure to perform a Bus Hold :
1. Press the desired crosspoint(s) you wish to retain during the memory recall. You can
select multiple crosspoints on multiple buses.
2. Press the
Bus Hold
button on each Bus you wish to retain during the memory recall.
You can select multiple buses to Hold.
3. Perform a memory recall. Refer to the section “ Recalling Memory Registers ” on
page 8–12 for information on recalling memory registers.
This completes the procedure to perform a Bus Hold . Refer to the section “ Setting up Panel
Buttons ” in the Synergy Series Installation Guide for information on configuring the Bus Hold
function.
Flip-Flop Operation
All MLEs are configured to operate in flip-flop mode. When you perform a cut, dissolve or wipe
transition between the
PGM and PST buses (or between the BKGD and PST buses), the two selected
sources exchange places. This is called a flip-flop.
For example, in the following figure, CAM 1 is selected on the PGM bus and CAM 3 is selected on
the PST bus.
Buses before Transition
After the cut, dissolve, or wipe transition is performed, the two buses flip-flop as shown below.
CAM 3 is now selected on PGM bus and CAM 1 is now selected on PST bus.
Buses Flip-flopped, after Transition
In this manner, with all switcher MLEs, the PGM and BKGD buses always provide an MLE’s
background output source, and the PST bus always provides the next source to be brought to air with
a transition. In addition, after a transition, the PST bus always shows the source last-selected on
PGM , until you change it.
SHIFT BLACK
PGM
PST
CAM
1
CAM
2
CAM
3
CAM
4
CAM
1
COLOR
BKGD 1
COLOR
BKGD 2
SHIFT
MLE
1
MLE
1
BLACK
CAM
1
CAM
2
CAM
3
CAM
4
CAM
1
COLOR
BKGD 1
COLOR
BKGD 2
ON
ON
SHIFT BLACK
PGM
PST
CAM
1
CAM
2
CAM
3
CAM
4
CAM
1
COLOR
BKGD 1
COLOR
BKGD 2
SHIFT
MLE
1
MLE
1
BLACK
CAM
1
CAM
2
CAM
3
CAM
4
CAM
1
COLOR
BKGD 1
COLOR
BKGD 2
ON
ON