Sony DVS-9000 System User Manual page 118

Changing the currently inserted key priority
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Key Priority Setting
Next transition
selection buttons
KEY PRIOR button
PRIOR SET button
If the next transition selection button [KEY PRIOR] is on, press another
next transition selection button to turn the [KEY PRIOR] button off.
(When the [KEY PRIOR] button is on, the transition control block
switches to the mode for changing the key priority for after the transition.)
Holding down the [PRIOR SET] button, press the one of the next transition
selection buttons [KEY1] to [KEY4] ([DSK1] to [DSK4] buttons in the
PGM/PST bank) for the key to appear on top.
The selected key now appears on top, on the program monitor.
The priority of keys other than the selected one does not change.
Key priority: 3, 1, 4, 2
To change the priority of more than one key, repeat this operation as
required.
ON ON ON ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
BKGD KEY1 KEY2 KEY3 KEY4
KEY SUPER
MIX NAM
PRIOR MIX
PST
COLOR
ALL WIPE DME
MIX
PRIOR NORM TRANS
NORM REV
SET /REV PVW
AUTO
CUT
TRANS
Transition control block
Key 1 selected.
PTN LIMIT
KF
LIMIT SET
Key priority: 1, 3, 4, 2