Leprecon LP-750 Series - Manual (Page 4)

rocker switches and have two positions. They can select either “I”, so that channel will
be controlled by the “I” master fader or “M” so that channel will be controlled by the “M”
master fader.
The “M”, master, fader controls only the “crossfader” section. The overall level that is set
by the “M” fader can be seen with the LED located directly above it.
The “I”, independent, fader controls only those channels that have been selected “I” by
the “M/I” rocker switches. The “I” fader also has a level LED located above it.
The switch marked “black” will disable the “M” fader on the board. This gives the
operator instant control over the scene outputs. When the disable function is activated
the red LED above it will be glowing.
HINT: This can also help in a quick change from an existing stage look to a chase
sequence. Activate the “black” switch and push the chase “on/off” at the same time.
Then reverse the operation to return the original stage look.
NOTE: All of the controls in the “grandmaster” section are overridden by the chase and
the bump sections.
CROSSFADER
The “crossfader” section controls the top, “X” scene, and bottom, “Y” scene, channels.
(See figure F) There are two control faders and they operate in reverse order to
accomplish a smooth crossing between the scenes. In order for the crossfade to work
the “M/I” selector switches need to be in the “M” position.
The leftmost fader is the “X” scene master and it operates the top row of the “X” scene
faders. The “X” scene master fader is at its maximum output when in the upward
position. The “X” fader has a corresponding level LED above it.
To its right is the “Y” scene master and it operates the bottom set of faders. This master
fader has a maximum output when in the downward position. The “Y” fader has an
output LED just below it.
With both crossfader controls in the up position the look on stage is accomplished from
the “X” scene, the “Y” scene fader is off. The operator sets up the next stage look to be
used on the “Y” scene controls. When it is time to change the look on stage the operator
brings both “crossfader” controls to the down position. This turns down the “X” scene
and turns up the “Y” scene. Creating a smooth dipless scene transition with a rate
determined by the operator.
DELAY
The delay unit allows a timed transition of 5 to 100 seconds between the “crossfader” or
“independent” controls.
There are 4 switches and a delay rate fader. (See figure G) The switch marked “on/off”
injects the delay circuitry into the system. When in the on position, the progress meters
will be glowing.