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User Guide
Leviton MC 7500 Series Memory Lighting Controllers
Dimmer Output Mode:
Pressing the Out function button will select the type of dimmer output. Available options are MCX (Micro-plex with
DMX512) or
DMX (DMX512 only, full speed). Other options may be purchased for the controller and are discussed
in information provided with the options.
Preheat:
To set preheat, hold down the Preheat function button and rotate the encoder. In order to provide the finest adjustment
of preheat, the preheat value is set to 1/255 increments (this corresponds to the 8-bit resolution of DMX512). So each
1% increase in brightness is approximately 2.5 increments (10% would be a setting of 25). The maximum value is
50 (about 20%). Most dimmers will not show much change for the first few increments.
Maximum Dimmers:
This sets the number of dimmers that the controller will output. Set this number by holding down the Change button
while turning the encoder. For greater controller performance, set this number to the number of dimmers
connected to the controller. This will result in a shorter dimmer data stream.
Memory Size:
This sets the size of the consoleʼs memory in channels. Increasing this number will result in a reduction of the number
of available pages. Change this parameter only if you will be working in the wide mode most of the time.
The memory must be cleared in order to change memory size. All programming will be lost, except
configuration and softpatch.
Press the Size button to change this setting. A confirmation screen will appear on the LCD, select Yes to proceed
and clear memory or No to cancel and return.
MIDI Menu
This menu allows changing MIDI parameters and saving memory to MIDI devices. Pressing the More function button
will advance to the Lock Menu.
Chan Device MIDI Params Save More
1 0 Memory
MIDI Channel:
Holding the Chan function button and turning the encoder may set the MIDI send/receive channel number.
MIDI Device:
The MIDI device number is the number defined in the MIDI Show Control Protocol. Holding the Device function
button and turning the encoder may set this number.
Save Memory:
The consoleʼs entire memory may be dumped to a MIDI device that stores SYSTEM EXCLUSIVE messages from
MIDI (such as a MIDI disk). Press the Save Mem function button to access the save menu.
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