Grass Valley 1200 Installation - Manual (Page 95)

3-21
Frame Modules
Keyer Module
The Keyer Module (Figure 3-8) contains the Effects Send crosspoints, proc
amps, and Wipe Pattern Generator. The Keyer Module also holds the Key
Processor Submodules and the Borderline Submodules.
Figure 3-8. Keyer Module
Effects Send Crosspoints
The Effects Send crosspoints constitute a crosspoint matrix which has all of
the Key Buses, Aux Bus 1, Aux Bus 2, and the key depth buses as inputs and
outputs. This crosspoint matrix will allow any of the three keys and fills to
be placed on the Aux 1 and Aux 2 output buses, which can be connected to
a DPM for manipulation of the key. The signal returning to the Model 1200
from the DPM re-enters on one of the primary inputs and is routed to the
effects send crosspoints on the Aux 1 and Aux 2 input buses. The effects
send crosspoints place this signal on any of the key output buses.
WIPE SOLID
GENERATOR
BORDERLINE
GENERATOR
SUBMODULE
KEY
PROCESSOR
SUBMODULE
Rx
RECLOCK
Rx
RECLOCK
Rx
RECLOCK
RECLOCK
SCALE
AND
SHAPE
RECLOCK
DELAY
EFFECTS
SEND
OUTPUT
BORDERLINE
GENERATOR
SUBMODULE
KEY
PROCESSOR
SUBMODULE
BORDERLINE
GENERATOR
SUBMODULE
KEY
PROCESSOR
SUBMODULE
DELAY
DELAY
PROC
AMP
DSK
EFFECTS
SEND
CROSSPOINTS
KEY 2
KEY 1
AUX 1
AUX 2
DEPTH 1
DEPTH 2
From XPT
Matrix or
Chroma Key
From XPT
Matrix or
Chroma Key
From XPT
Matrix or
Chroma Key
From
XPT Matrix
From
XPT Matrix
DSK
Key 2
Key 1
Aux 1
Aux 2
Depth 1
Depth 2
DSK Y, C, K
Buses to
Mixer Module
Key 2 Y, C, K
Buses to
Mixer Module
Key 1 Y, C, K
Buses to
Mixer Module
Aux 1
Aux 2
Depth 1
Depth 2
Pst Ptn
PAT_PATCEN
T o Mixer Module
Tx
RECLOCK
Tx
RECLOCK
Tx
RECLOCK
PROC
AMP
PROC
AMP