Tektronix 3000 Switch User Manual


 
2-13
Source Selection
Secondary Source Selection (Re-entry Crosspoints)
The secondary source (“M/E re-entry”) buttons, M/E 1,
M/E 2, and M/E 3 (3000-3 only) are located at the right end
of each row of primary crosspoint buttons.
Unlimited re-entry is supported for outputs of the Mix/Effects
(M/Es). The program output of any M/E may be reentered as an
input on any other M/E or in the Flip-Flop Mix/DSK system, or it
may be used as a key source on any other M/E or the DSK.
Since multiple re-entry is allowed, lockout logic prevents one
M/E from entering another M/E at the same time the other M/E
is entering the first. If a circular re-entry is attempted, the request
for the second re-entry will be ignored.
Uncal Indicators
Each UNCAL indicator LED, located in line with a row of source
select buttons, lights if one or more of the following variables are
set to non-default values for the selected crosspoint on that bus:
opacity, luminance gain, chroma gain, dc offset, coring, or
horizontal key position.
Key Delegation Indicators (Model 3000-2 Only)
The KEY 1 and KEY 2 indicator LEDs, located adjacent to the
reentry source selection buttons and in line with each row of key
crosspoint buttons, light to indicate which keyer the row of
buttons is currently delegated to control.
M/E
3
M/E
1
M/E
2
UNCAL
KEY 1
KEY 2