Leprecon LM-850 Manual

Midi lighting console
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LEPRECON
®
PRO LIGHTING EQUIPMENT
Leprecon LM-850 MIDI Lighting Console
Sixth Revision
September 1991
ROM Version 1.5A
Leprecon/CAE, Inc.
P.O. Box 430, 10087 Industrial Drive, Hamburg, MI 48139-0430 USA
810-231-9373 FAX 810-231-1631, e-mail Lepserv@caeinc.com

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Summary of Contents for Leprecon LM-850

  • Page 1 LEPRECON ® PRO LIGHTING EQUIPMENT Leprecon LM-850 MIDI Lighting Console Sixth Revision September 1991 ROM Version 1.5A Leprecon/CAE, Inc. P.O. Box 430, 10087 Industrial Drive, Hamburg, MI 48139-0430 USA 810-231-9373 FAX 810-231-1631, e-mail Lepserv@caeinc.com...
  • Page 2: Table Of Contents

    LEPRECON LM-850 LIGHTING CONSOLE, ROM Version 1.5A TABLE OF CONTENTS FCC PART 15 POTENTIAL RADIO FREQUENCY INTERFERENCE WARNING PRODUCT FEATURES GLOSSARY OF TERMS INTRODUCTION GETTING STARTED Power Supply Basic System Hook-up MIDI Dimmers Digital Dimmers (DMX-512) Analog Dimmers Basic Scene Functions...
  • Page 3 MIDI Basics MIDI Dimmer Interface MIDI System Interface Controlling the Chase Rate Through MIDI Controlling the LM-850 From a Sequencer Recording “GO” Commands Only (Song Mode) Recording All Commands (Scene Mode) Combining Sequencing and Live Control Step-Time Sequencing of Lighting Cues...
  • Page 4 MIDI System Exclusive Data Dump Format Triggering MIDI Devices From the LM-850’s Dimmer Output Controlling MIDI Dimmers From the MIDI System Out APPENDIX 1: MIDI Continuous Controllers and LM-850 Functions APPENDIX 2: Built-in Tests Power-Up Communications Test Service Tests Battery...
  • Page 5: Fcc Part 15 Potential Radio Frequency Interference Warning

    FCC Part 15 Potential Radio Frequency Interface Warning Warning: This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. As temporarily permitted by regulation, it has not been tested for compliance with the limits for Class A computing devices pursuant to Sub-part J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference.
  • Page 6: Product Features

    Analog outputs (0-10 volts) for 48 or 96 channels (optional). DISPLAY: Easily-readable 2 X 16 character backlit LCD screen for console display and HELP messages. FOOTSWITCH jack for controlling Go, Black, Bump All, Chase Bump, Chase Start/Stop, or Tempo Tap functions (Leprecon FCP footswitch optional).
  • Page 7: Glossary Of Terms

    CURRENT SCENE – The scene which is actually controlling the lighting at a given time. Note that this is not necessarily the scene that corresponds to the setting of the channel faders on the LM-850, such as when the console is used in the Manual scene mode.
  • Page 8: Introduction

    It is very easy to use once a few basic concepts have been learned. The “Getting Started” section of this manual will get the LM-850 up and running, and will allow you to do some hands-on experimenting for a bit. But soon, you will want to read through the rest of the manual and learn the specifics about each of the console’s many functions.
  • Page 9: Getting Started

    Then, a second MIDI cable is run from the MIDI Thru of that dimmer to the MIDI In of the next dimmer, and so on. So, a MIDI dimmer can be plugged into either a Dimmer MIDI Out from the LM-850, or...
  • Page 10: Digital Dimmers (Dmx-512)

    MIDI dimmers are. A single DMX-512 output on the LM-850’s rear panel is used to drive one dimmer, and that dimmer then feeds the next, and so on (see Figure 2). With this setup, as many dimmers can be hooked up as desired.
  • Page 11: Basic Scene Functions

    BASIC SCENE FUNCTIONS Once you have gotten your dimmers connected to the LM-850, and gotten everything powered up, it’s easy to start operating the console in a basically “manual” fashion. When the console is first turned on, it will be in “Scene mode,”...
  • Page 12 (see “Hard Reset,” page 50). All of the board controls, along with brief descriptions, are diagrammed on page 53. But whenever you are ready to learn more about the specific controls of the LM-850, and how to use them, go on to the next section of the manual.
  • Page 13: Console Layout And Controls

    1; if a button is held down for longer than one second, it will scroll rapidly through the available values. FIGURE 5 Figure 5. The LCD display screen of the LM-850, and the buttons used to access its pages and parameters.
  • Page 14: Help Button

    4) Enter the desired value from the keypad, the UP/DOWN buttons, or the appropriate fader. HELP BUTTON For every page of the LM-850’s display, pressing the HELP button will display information relevant to the currently selected mode and function. This can be a quick “prompt” for the user if a particular command function is forgotten.
  • Page 15: Channel Leds

    CHANNEL LEDs The brightness of the Channel LEDs gives a coarse but useful indication of the levels of each channel; these LEDs have a resolution of 8 steps from off to full, so they are not as smooth as the actual lighting levels.
  • Page 16: Clear Button

    Just like on a simple two-scene lighting board, the CROSSFADE slider allows the user to manually crossfade from one scene to another. On the LM-850, however, the crossfade does not alternate between “X” and “Y” banks of actual faders, it instead crossfades between any two scenes stored in the console’s memory.
  • Page 17: Master Level Control

    (after the short time required for the LM-850 to recognize that the button is held down). While a blackout fade is in progress, re-pressing and holding the BLACK out button will produce an instant blackout.
  • Page 18: Go Button

    By plugging in a footswitch to the LM-850 and setting the Pedal Assignment to “GO” (in the Console mode – see page 32), the footswitch can duplicate the function of the GO button, allowing for hands-off scene changes during live performances.
  • Page 19: Scenes And Scene Mode

    SCENES AND SCENE MODE SELECTING SCENES In Scene mode, any of the LM-850’s 100 stored scenes can be called up, cleared to zero, “played live” and abandoned or carefully edited and saved. Any scene can be crossfaded into any other. When the SCENE...
  • Page 20: Editing The Current Scene

    EDITING THE CURRENT SCENE The Current Scene can be edited in real time with the channel and submaster sliders, and any such changes will be reflected both in the LEDs and in the actual level of the lamp(s) controlled by that fader. When any of the Current Scene’s parameters is changed (channel slider, associated chase number, crossfade time, etc.), the word “Edited”...
  • Page 21: Submaster Assignment

    Submaster Assignment. The next Scene mode page brings up the following display, and you may notice that certain channel LEDs turn on or off when it is accessed: SUB MASTER A CONTROLS LIT CHL This page tell the user that the channels with illuminated LEDs are controlled by the SUBMASTER A slider. This assignment configuration is easily changed by pressing the Channel BUMP switches to toggle each channel on or off.
  • Page 22: Clearing Scenes

    The Manual scene can then be called up either instantaneously by pressing the GO button (no timed crossfades are possible), or by manually fading into it with the CROSSFADE slider. Once a manual fade is started, any subsequent channel edits will be ignored (though they will be reflected in the following scene). In other words, if a channel fader is moved while a slow manual crossfade is being done, the new Current Scene will only reflect where the channel’s fader was at the time the crossfade was started.
  • Page 23 With the STORE button, the level of all 54 channels, the level of the Submasters, the Bump and Blackout modes (if set to ScnbyScn), any associated chase number, the crossfade time, the name, and the current active bank (1, 2, or 3) of a scene can be saved for later recall. After the first press of the STORE switch, the following display appears: STORE CURRENT SCENE 05 AT 05...
  • Page 24: Songs And Song Mode

    A number from 00 to 49 can be used to select any programmed song (even the same Current Song once again), or a number above this range can be entered, in which case the LM-850 will display “NONE”...
  • Page 25: Deleting A Song Step

    Deleting a Song Step. The next Song mode page displays: DELETE STEP 03 CONFIRM WITH GO This page is used to delete a step from a song’s scene list. Whenever this page is entered, the current active Step in the song is displayed (Step 03 in the example); a different step can be selected with the keypad or the UP/DOWN buttons.
  • Page 26: Chases And Chase Mode

    CHASES AND CHASE MODE The LM-850’s memory holds 50 chases, each up to 32 steps long. Each chase step can be either a combination of any of the 54 channels, or any one of the scenes in memory, and these two types of steps can be used together in the same chase.
  • Page 27: Programming A "Scene" Chase Step

    In this case, the chase will synchronize to MIDI clock signals from an external sequencer, drum machine, or computer. In order to use this function, therefore, the LM-850 must be connected to one of these devices. For use with a sequencer, for example, a MIDI cable must be connected from the sequencer’s MIDI Out...
  • Page 28: Deleting A Chase Step

    While the LM-850 offers extensive MIDI capabilities, to synchronize a chase in this manner, no further MIDI settings need to be made, other than setting the LM-850’s MIDI System In to any channel that is not otherwise being used (see page 33; this is to avoid receiving spurious commands intended for another device).
  • Page 29: Adding A Chase Step

    to step 01 if no manual stepping has been done, or to the last step the chase was set to otherwise. But if a chase has been edited and not yet stored prior to accessing this page, the step number is automatically set to the step which was last altered.
  • Page 30: Chase Level

    Chase LEVEL. The Chase LEVEL slider controls the overall level of the channels that make up a chase. It does not, however, control the level of scenes that are used as chase steps. The Chase LEVEL LED displays the current setting of the chase level; note that the position of the fader does not always reflect this.
  • Page 31 It is also possible to step through a chase in a looping manner, by using the TEMPO and CHASE On/Off buttons, and this can be done whenever a chase is up, regardless of what page is displayed. This can even be done, for example, while in Scene or Song mode.
  • Page 32: Console Mode

    CONSOLE MODE The Console mode of the LM-850 is where the user can set many parameters that affect the general operation of the board. Note that Console mode may be accessed from any other mode without affecting the normal operation of the channel faders and outputs. The Channel LEDs may change to indicate various parameters, but output values will remain at their proper levels and chases will continue running normally until the original mode is returned to, or until another mode is accessed.
  • Page 33: Pedal Assignment

    faders 7 and 8 controlled dimmers 3 and 4, and faders 9 through 12 controlled no dimmers. Now, when the same show is executed, the same effects will be achieved, only on a lesser scale. And with the soft patch stored in memory, the same show can be done on either lighting system simply by selecting either Custom or Default for the Dimmer Assignment.
  • Page 34: Blackout Fade Rate

    MIDI CHANNEL IN 12 OUT 13 In the above example, the LM-850 will read incoming MIDI messages on channel 12 only. It will output MIDI data on channel 13. The desired settings are entered from the keypad or the UP/DOWN buttons.
  • Page 35: Midi Dimmer Channels

    MIDI in the standard system exclusive data dump format (see page 54). In this manner, an unlimited amount of data can be saved from the LM-850, and reloaded into the console at any time.
  • Page 36: Midi Or Dmx-512 Output

    UP/DOWN buttons. “Cont” refers to continuous controller MIDI data, while “Note” refers to MIDI note-on/off messages. Although Leprecon MIDI dimmers respond to both data types, CONTinuous controller protocol should always be used (since it requires less data transmission to execute a given dimmer command) unless a special device that responds to note data (such as a synthesizer) must be driven by the MIDI Dimmer Outputs of the console.
  • Page 37: Audio Trigger Mask Time

    To ease the shock to lamps and dimmers and make lamps respond faster to chases and bumps, preheat can be turned on. The LM-850 will then output a level of a few percent instead of zero or full off when channels are faded out.
  • Page 38: Midi Functions And Operation

    MIDI channels (a device can only transmit on one channel, however). While most devices send and receive data on the same channel, some - like the LM-850 - offer the added versatility of being able to send and receive on separate channels.
  • Page 39: Midi Dimmer Interface

    If you are sending data from a keyboard to the LM-850, then, you should plug a MIDI cable from the MIDI Out jack of the keyboard to the MIDI In jack of the LM-850. The MIDI Thru port allows for daisy- chaining devices together;...
  • Page 40: Controlling The Chase Rate Through Midi

    After a sequence is stopped, it can either be continued or started over again. If continued, the LM-850's chase will pick up where it left off. If started over the chase will once again reset to Step 01.
  • Page 41: Controlling The Lm-850 From A Sequencer

    MIDI Out needs to be connected to the LM-850's MIDI In. The track needs to be set to the same MIDI channel that the LM-850's MIDI Out is set to (see page 33) in order to record data. Similarly, to play back the light cues, the LM-850 must be receiving on the same channel (MIDI In) that the track is set to.
  • Page 42: Recording All Commands (Scene Mode)

    (remember, the LM-850 does not record the motion of the MASTER fader), it is best to program a dark scene as the first song step. When a song is called up on the LM-850, it automatically brings up the first scene if the MASTER fader is up, and with an initial dark scene, the song can be called up with the MASTER on full.
  • Page 43: Combining Sequencing And Live Control

    (as shown in Figure 6). The sequencer track should be set to record on the same MIDI channel as the LM-850's MIDI System Out channel (see page 33). Since there will now be a large number of individual cues to record, it may be easiest to record one track of just a few lighting channels, then record another track of a few more, etc.
  • Page 44: Step-Time Sequencing Of Lighting Cues

    (other than by controlling them, say, with a keyboard driving the dimmers). The gist of this technique is that the show is recorded from the LM-850, only the sequencer is fed from the MIDI Dimmer Out rather than from the System Out. Anything that the console does - scene changes, chases, etc.
  • Page 45: Triggering Midi Devices From The Lm-850'S Dimmer Output

    At any time, a file can be re-loaded from disk back into the LM-850 through sysex, and in this way, the console is afforded an unlimited memory.
  • Page 46: Controlling Midi Dimmers From The Midi System Out

    CONTROLLING MIDI DIMMERS FROM THE MIDI SYSTEM OUT It is also possible on the LM-850 to control MIDI dimmers from the MIDI System Out port, in a somewhat limited way. Since theMIDI dimmers read continuous controller data from the channel faders, it is possible to plug a cable from the MIDI System Out to the MIDI In of a dimmer and control the dimmer with the channel faders.
  • Page 47: Appendix 1: Midi Continuous Controllers And Lm-850 Functions

    APPENDIX 1: MIDI CONTINUOUS CONTROLLERS AND LM-850 FUNCTIONS Controller No. (Decimal) (Hex) LM-850 Function Possible Values (Decimal) Channel 1 fader 0-127 Channel 2 fader 0-127 Channel 3 fader 0-127 Channel 4 fader 0-127 Channel 5 fader 0-127 Channel 6 fader...
  • Page 48 Controller No. (Decimal) (Hex) LM-850 Function Possible Values (Decimal) Channel 49 fader 0-127 Channel 50 fader 0-127 Channel 51 fader 0-127 Channel 52 fader 0-127 Channel 53 fader 0-127 Channel 54 fader 0-127 CROSSFADE slider 0-127 (1) MASTER fader 0-127...
  • Page 49 Controller No. (Decimal) (Hex) LM-850 Function Possible Values (Decimal) Channel 38 BUMP button 0=Off, 127=On Channel 39 BUMP button 0=Off, 127=On Channel 40 BUMP button 0=Off, 127=On Channel 41 BUMP button 0=Off, 127=On Channel 42 BUMP button 0=Off, 127=On Channel 43 BUMP button...
  • Page 50: Appendix 2: Built-In Tests

    APPENDIX 2: BUILT-IN TESTS POWER-UP COMMUNICATIONS TEST Whenever the LM-850 is powered up, a test of the communications between the main microprocessor (type 8031) and the output microprocessor (type 8052) is automatically performed. If the test is successful, the screen will briefly display: LEPRECON LM-850 Version 1.4B...
  • Page 51: Battery

    BATTERY The LM-850 uses a lithium battery to maintain its RAM memory. This battery should last several years. Removing the battery will cause a memory loss, and will require a hard reset (see below) after a new battery is installed.
  • Page 52 Function Default Transmit Recognized Remarks ----------------------------------------------------------------------------------------------------------------------------------------------- Control Change - MIDI Dimmer Output. (Outputs either note-on/off or continuous controller data to dimmers.) 0-127 MIDI Dimmer Out (Dimmer level values, 0-127) ----------------------------------------------------------------------------------------------------------------------------------------------- Control Change - MIDI System Out: 0-53 0-53 MIDI System Out (Channel level sliders, 0-127) CROSSFADE, 0-127;...
  • Page 53 LM MIDI CONTROLLER PCA, REV F 669.50 effective 10/96 Prices are subject to change without notice. Please contact the factory for parts not included on this list. Leprecon/CAE, Inc PO Box 430 10087 Industrial Dr Hamburg MI 48139-0430 Tel: (810) 231-9373 Fax: (810) 231-1631...

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