Leprecon LP-750 Series - Manual (Page 5)

The “norm/trig” switch allows the user to either start the timing process when the fader is
moved or when the “go” button is depressed. When in the “trig” position, the yellow LED
above the “go” button will be glowing. This indicates the “go” button is ready.
The “go” button, beneath the “norm/trig” switch, allows the operator to precisely start the
timing process. Either the “I” or “crossfade” section will be inoperative, depending which
function was selected, until the “go” button is depressed.
Underneath the “go” button is a rocker switch labeled “I/crossfade”. In the “I” position the
timing circuit operates the independent, “I”, fader and the progress meter to the right
shows the level. If the “trig” position is used the operator has to select where the next
fader level should be. When the “go” button is depressed the “I” level will seek the new
intended level. Also note that when in the “I” position the “Y” progress meter is disabled.
When the “I/crossfade” switch is in the “crossfade” position the timing circuit operated
the “crossfade” section. The progress meters are on either side of their respective
faders. If the “trig” position is used the operator needs to preset where the next fader
levels should be. When the “go” button is depressed the “crossfade” levels will seek the
new intended levels. The “X” progress meter is a dual meter; it is used for the “I” fader
or the “X” fader, depending on where the “I/crossfade” selector switch is set.
The rate fader is to the left of the switches and is marked with time increments. The
fastest time is 5 seconds and the slowest is 100 seconds. The time can be varied while
it is in operation. If the scene needs to be changing faster then you have intended just
move the fader to a faster setting.
HINT: While the timed circuit is operating the “I” fader, at a slow rate, the “X” and “Y”
crossfader are manually controlled and full scene changes are still accomplished. Such
as a slow sunrise, “I” master fader, while the various scene changes, “X” and “Y”, are still
going on.
CONTROL CHANNELS
The control section, (see figure G) is at the right of the board. This section contains the
individual channel faders, the “M/I” switches, the bump buttons and output LEDs.
The output LEDs located at the top are directly related to that channels output. The two
position rocker switches located beneath the output LEDs select either the “M”, master,
or “I”, independent as a fader source for that channel. The momentary switches at the
bottom of each channel are for the bump button operations.
TRIM
To adjust the trim of any LEPRECON controller you need a volt meter and a small flat
blade screwdriver. The first item that should be done is to determine which pin is
common with your controller.
On the LP-700 series there are two different types of output connectors used. The 15
pin cinch jones connector and the 27 pin cinch jones connector. On the 15 pin CJ pins 1
– 12 are channels 1 – 12 and pin 13 is a 28 volt DC supply use by another brand of
dimmers for a fan relay switch. Pin 15 is use for common and common is isolated from