LMC Installation Manual
Contents
1. o 3 3 0 m O 3 S O e 5 o o o o o o A l t o m N m a a fag m O o 0 o R10 e Ci3e D A CONVERTER c12 0 R11 7524 U6 do0ss330Yd 101IN SN 5U POWER SUPPLY 5U U10 4558 o C15 e C16 e m m Xx lt x gt ep D 301719 AYI30 3109 O O Oo 0 Z m O Lintronics MIDI converter LMC Owner Manual for the Lintronics Minimoog Interface Copyright 1994 Date 02 10 2001 Rev 1 04 Run without MIDI The Minimoog works as a normal Minimoog The only one difference is the MODULATION MIX pot If the pot is on NOISE position and the EXT INPUT switch is on the ON posi tion the internal LFO of the interface is active NOISE is on the MODULATION MIX pot when the EXT INPUT switch is on the OFF position Run with MIDI After you switch on the Minimoog the MIDI interface receives data bytes on channel 1 If you wish to change the channel you have to send a program change 1 to 16 on MIDI channel 1 It is a good idea to turn the modulation wheel to the center position turn on the GLIDE switch and turn off the DECAY switch that you can control them via MIDI Program Change Table Program Number Function 1 M switches the interface to MIDI channel 1 2 M switches the interface to MIDI channel 2 3 M switches the interface to MIDI channel 3 4 M switches the interface to MIDI channel 4 5 M switches the interface to MIDI channel 5 6 M switches2. board The keyboard has two outputs PITCH and TRIGGER When one or more keys are depressed the pitch output or pitch buss delivers a voltage that depends on the lowest key that is depressed When any key is depressed the trigger output or trigger buss voltage becomes 10 volts When no keys are depressed neither of the keyboard busses is connected to any voltage The two keyboard out puts go to the Contour Generator and Keyboard circuit board which then processes them for use in determining the Minimoog pitch and starting the contour generators Two of the LMC outputs are called PITCH and GATE When the LMC receives a MIDI note on message it produces a pitch voltage from 1 445 volts MIDI note 36 or C2 to 3 655 volts MIDI note 99 or D 7 In addition it produces a gate voltage of 10 volts whenever a MIDI note on message for any note is received When all MIDI note on messages have been followed by matching note off messages then both the pitch and the gate voltages are disconnected from the LMC output Thus the pitch and gate outputs of the LMC serve exactly the same function as the pitch and trigger outputs of the Minimoog key board And since they are connected to exactly the same points on the Minimoog s Contour Generator and Keyboard circuit board they perform the same function This means that the Minimoog s key board will perform normally when no MIDI note on messages are in effect but that you cann
3. keyboard works normally keyboard works inverted higher key lt gt lower note mod wheel controls keyboard gt ON mod wheel controls keyboard gt OFF mod wheel set the LFO speed push and hold a key on your master keyboard turn on the mod wheel and send program change 40 Now you can set the LFO speed with the mod wheel of your master keyboard After you let go of the key the mod wheel runs as normal as before LFO triangle LFO sawtooth falling LFO sawtooth rising LFO square wave 50 pulse width LFO square wave 25 pulse width LFO square wave 12 5 pulse width LFO Random Sample 8 Hold Page 6 Program Number 48 49 50 51 52 53 54 ZZVN 55 56 57 58 59 60 61 62 63 64 z 65 M Z technical description Power supply Key range Pitch Bend range Volume CV Filter CV LFO CV Lintronics MIDI converter LMC Function LFO positive LFO negative LFO speed 1 1 approx 6Hz LFO speed 1 10 approx 0 6Hz LFO speed 1 100 approx 0 06Hz LFO trigger gt ON pressing a key resets the LFO LFO trigger gt OFF MONO keyboard mode POLY keyboard mode preset value 1 8 in ROM POLY keyboard mode gt active at the 1 key POLY keyboard mode gt active at the 2 key POLY keyboard mode gt active at the 3 key POLY keyboard mode gt active at the 4 key POLY keyboard mode gt active at the 5 key POLY keyboard mode gt active at the 6 key POLY keybo
4. 4 NOTE Program Change 23 is implemented only if all other MIDI control of volume has been disabled by sending Program Change 22 or by resetting the LMC to its power on default 24 Breath Controller Control 2 Foot Contoller Control 4 disabled FILTER CUTOFF PROGRAM CHANGE NUMBERS 25 29 Selects a MIDI control source to control the filter cutoff as shown below 25 Note on Velocity 26 MIDI Channel Pressure Aftertouch 27 Either Breath Controller Control 2 or Foot Controller Control 4 28 Modulation Wheel Control 1 29 No MIDI control of filter Default CONTROL OF MOD AMOUNT BY AFTER TOUCH PROGRAM CHANGE NUMBERS 30 31 30 MIDI Channel Pressure Aftertouch controls amount of modulation 31 MIDI Channel Pressure Aftertouch does not control amount of modulation PITCH BEND RANGE PROGRAM CHANGE NUMBERS 32 33 32 Pitch Bend range is 3 semitones Default 33 Pitch Bend range is 6 semitones KEY PRIORITY PROGRAM CHANGE NUMBERS 34 35 34 The lowest of all keys that are on will deter mine the Minimoog s pitch Default 35 The highest of all keys that are on will deter mine the Minimoog s pitch SANDO PROGRAM CHANGE NUMBERS 38 39 38 Modulation wheel produces glissando 39 Modulation wheel does not produce glissando Default MOD WHEEL SETS LFO SPEED PROGRAM CHANGE NUMBER 40 Hold a key send Program Change 40 set the LFO sp
5. Glide switch should be on for the LMC Glide function to work INSTALLING THE LMC KIT ATTENTION The components in your LMC Kit for the Minimoog have been carefully built and thoroughly tested and calibrated If you follow these instructions carefully and if your instrument is a standard Minimoog that was built after 1971 you should have no problem performing this instal lation successfully Read the following instructions carefully The warranty will be void if you damage the circuitry by improper installation or handling The LMC Kit for the Minimoog contains the fol lowing e Circuit board with MIDI 5 pin DIN connector e Small envelope with mounting hardware In order to complete the installation you will need the following e Electric drill with 5 64 1 8 3 16 and 1 4 bits e Center punch and a small hammer if neces sary 5 8 D hole punch Countersinking bit 1 and 2 Phillips screwdrivers 1 4 and 5 16 nut drivers Scissors Small knife for scraping solder mask off cir cuit board traces e Small soldering iron 35 watts or less and sol der e Wire strippers e Electrical tape or heat shrink tubing and a heat gun e MIDI keyboard or other source of MIDI mes sages with a MIDI cable e Headphones or a monitor amplifier The following tools may also prove useful e Solder sucker e Voltmeter for checking and trouble shooting e Small wire brush to clean soldered connections e Soft brush or
6. MODULATION MIX pot should be full clockwise and the toggle switch next to the MIDI IN connector should be on EXT MOD USING THE MINIMOOG S KEYBOARD AND A MIDI KEYBOARD AT THE SAME TIME If you depress a key on your MIDI keyboard and a key on the Minimoog keyboard at the same time you will generally not get a correct pitch However you can play the MIDI keyboard and your Minimoog key board alternately in which case you will get the pitch of the last key that was depressed TECHNICAL SPECIFICATIONS LMC Circuit Only Power Supply 10 volts 50 mA Key Range 64 semitones C2 to D 6 Pitch Bend Range max 6 semitones 14 bit resolution Volume CV 0 to 5 volts Filter CV 0 to 5 volts LFO voltage output 2 volts LFO waveforms Triangle Rising Sawtooth Falling Sawtooth Square Wave 50 Rectangular Wave 25 Rectangular Wave 12 5 Random Page 11 Lintronics MIDI converter LMC Note The old version of the Big Briar instructions is different THE LINTRONICS MIDI CONVERTER KIT FOR THE MINIMOOG INSTRUCTIONS FOR INSTALLATION February 17 2002 Version HOW IT WORKS Before attempting to install or use the Lin tronics MIDI Converter LMC for the Minimoog please read the following Theory of Operation This information will help you to understand how the LMC works with the Minimoog NOTE ON AND NOTE OFF The Minimoog is a monophonic analog synthe sizer which is normally controlled from its key
7. and solder the free ends of the violet and white orange wires in place of R 57 See Figure 2 Finally re install the Minimoog Power Supply board 12 Look at the Minimoog Contour Generator Keyboard board the board with one set of 14 edge contacts and one set of 22 edge contacts Note that there is a jumper on the component side im mediately above transistor Q12 Remove this jump er and clean off the solder pads to which it was connected Page 14 Lintronics MIDI converter LMC 13 Turn the board over to the solder side Note that the set of 14 edge contacts is numbered 1A to 14A and that the set of 22 edge contacts is num bered 1B to 22B Scrape the solder mask off a small area of each of the traces going to edge con tacts 1A 2A 3A 6A 7A 8A and 9A The scraped areas should be about 1 4 long and should be near but not on the gold plating of the edge contacts Tin solder coat each of these areas 14 Solder the free ends of the nine wire cable to the tinned areas that you have just prepared as follows RED to 1A GREEN to 2A BLACK to 3A GREY to 6A BROWN to 7A YELLOW to 8A PURPLE to 9A Solder the free ends of the orange and blue wires to the two pads to which the removed jumper See step 12 above was soldered Clean and inspect all connections Finally dress the cable so it tends to run along the tops of the contact fingers 15 Mount the LMC circuit board as follows Place one 8 32 x 1 4 screw i
8. computer programs that read and display MIDI messages are available You may find that using such a device or program will help you to know exactly what program changes your LMC is receiving If your LMC receives the same MIDI message stream as one or more other instruments in your set up you will probably want to assign the LMC to its own MIDI channel so that program change mes sages which you intend to program the LMC will not cause unwanted program changes in other in struments SETTING THE MINIMOOG S CONTROLS The LMC does not autotune the Minimoog Therefore you will have to tune the Minimoog when using the LMC just as you tune it when you use it normally The amount of the Minimoog s modulation is de termined by the combined effect of the Minimoog s Modulation Amount wheel and MIDI Modulation Amount messages Control Change 1 or MIDI Channel Pressure messages If you re using MIDI to control modulation amount then the Minimoog s mod wheel should be full on On the other hand if you want to use the Minimoog s mod wheel after you use a MIDI modulation amount message stream then you should leave the MIDI modulation amount at maximum If you wish to control the Minimoog s GLIDE function from MIDI then the Minimoog s GLIDE switch should be on If you wish to control the Minimoog s DECAY function from MIDI then the Minimoog s DECAY switch should be off If you want to use the LMC s LFO function then the Minimoog s
9. the interface to MIDI channel 6 7 M switches the interface to MIDI channel 7 8 M switches the interface to MIDI channel 8 9 M switches the interface to MIDI channel 9 10 M switches the interface to MIDI channel 10 11 M switches the interface to MIDI channel 11 12 M switches the interface to MIDI channel 12 13 M switches the interface to MIDI channel 13 14 M switches the interface to MIDI channel 14 15 M switches the interface to MIDI channel 15 16 M switches the interface to MIDI channel 16 17 M program change enable gt ON 18 M program change disable gt ON only program change 17 pass the filter to enable this mode 19 M velocity controls VOLUME Page 5 Program Number 20 21 22 23 24 25 26 27 28 29 30 31 Sette lt lt lt sss lt ggz NNNNNNN Lintronics MIDI converter LMC Function after touch controls VOLUME foot pedal controls VOLUME Controller 7 maximum VOLUME controller 2 4 controls VOLUME gt ON only if VOLUME control is OFF controller 2 4 controls VOLUME gt OFF velocity controls FILTER CUTOFF after touch controls FILTER CUTOFF mod pedal controls FILTER CUTOFF Controller 2 4 mod wheel controls FILTER CUTOFF Controller 1 FILTER CUTOFF control gt OFF after touch controls Mod Wheel gt ON after touch controls Mod Wheel gt OFF pitch bend range has 3 semitones pitch bend range has 6 semitones lower key priority higher key priority
10. ECAY Outputs from the LMC board brown Dual Contour Generator board PITCH Output from the LMC board grey pin 9A GLIDE Outputs from the LMC board yellow pin 7A 8A GND Input from the LMC board black pin 2A 10V Input from the LMC board blue pin 3A 10V Input from the LMC board red pin 1A GATE Output from the LMC board brown pin 6A Keyboard Circuit board Page 4 10 Key CV MIDI In Q1 5 10 5 Siaa ae vac U4A UZA Ra T Ra MC33079 MC33079 MC33079 12 7K 10 0K 9 8 1 R1 10 220 sio 10nF u2c R7 2 0K 1 MC33079 zi D A Converter U2B MC33079 Rg 5 10 C12 6 Jumper 15pF E 7 Bend CV O 87 ala 5 R9 MC 6 LFO Out 820 150 2 2K E D gt 7 Extern O s4 s2 7 Mod S amp H Buffer Wheel OnF s3 NN LT3011 2 U4D 2 MC33079 MC33079 L1 MIDI Thru a Y O s6 12 ats D 2 2K E4 c4 cs 4 7uF 10nF 10nF Multiplexer Decay O s9 Decay O s8 10 Glide O s11 5Volt 5Volt P Glide ower Supply Power Supply s10 Gate O s12 R12 470 I Key CV O s Switches MIDI Converter for Minimoog LINTRONICS 8 Apr 2013 7 8 I 9 5 0 a N o a E O 0 O l Mm O res L gt 00 O J o o gt 24 e g L Gl E LO x lt O LJ i y 4 a v pr Q E 0 e o o o o o o J gt m a e J o e GJ Z S 5 Do
11. Lintronics MIDI converter LMC Lintron MUSIC es i Lintronics Franziska Barbara Str 10 91452 Wilhermsdorf Germany EN 49 9102 999515 x www lintronics de lt info lintronics de LMC Installation Instructions INPU o G EXT SIGNAL MAIN OUTPUT wire from the NOISE switch Connect the OSC1 and EXT Input switches EXT Output from the LMC board Cut the four wires wire from the MODU LATION MIX pot was connected to the NOISE switch before as EXT Input switch Page 1 Lintronics MIDI converter LMC wire from the EXT In put switch NOISE switch Cut the connections from these pins to ground Loudness Filter Oscillator BEND Out put from the LMC board FILTER Out l put from the CV inputs LMC board VOL Output from the LMC board Page 2 Lintronics MIDI converter LMC LMC board GLIDE wires connec mounted on the Con ted to the two free ho tour Generator Key les on the Keyboard board Circuit board Circuit board Minimoog rear view MOD Output from the LMC board remove the 1KOhm o and connect the two wires MIDI input pin view instead of the resistor DIN 5 Input from the LMC board green short ground wire from the LMC board black near the Lintronics logo DIN 4 Input from the LMC board yellow Page 3 Lintronics MIDI converter LMC Cut the trace between pin 21B and 22B of the Dual Contour Generator board D
12. ard mode gt active at the 7 key POLY keyboard mode gt active at the 8 key in the POLY modes it s possible to play max 8 monophonic synthesizers polyphonic Preset is a value from 1 8 which is burned in the processors EPROM Normally this value is 1 System reset after receiving this program change the interface needs 0 25 sec time for accepting the following MIDI bytes only MIDI data controls the function the Minimoog mod wheel can use this function too default values after power on 10 Volt 50mA 64 semitones C1 to D6 max 6 semitones 14 bit resolution 0 to 5 Volt 0 to 5 Volt 2 Volt triangle sawtooth falling sawtooth rising square wave 50 square wave 25 square wave 12 5 Random Page 7 Lintronics MIDI converter LMC USER S MANUAL LINTRONICS MIDI CONVERTER FOR THE MINIMOOG August 10 1995 Version DESCRIPTION The LINTRONICS MIDI CONVERTER LMC for the Minimoog consists of a dedicated micro computer which is installed completely inside the Minimoog chassis Its input is a conventional MIDI IN jack Its outputs are a series of control voltages and switches which are permanently connected to the Minimoog circuitry These control voltages and switches enable you to use MIDI to control these Minimoog parameters Pitch note Pitch Bend Volume Filter Cutoff Amount of Modulation Independent LFO for Oscillators and Filter Glide On Off Decay On Off DEFAULT SETTINGS Whe
13. dal message Control Change 65 PROGRAMMING YOUR LMC MIDI Program Change numbers 1 65 are used to select the LMC s settings Following is a complete list describing the LMC settings that are accessed through via Program Change messages MIDI CHANNEL PROGRAM CHANGE NUMBERS 1 16 Selects which basic MIDI channel for the LMC will respond to Program number is the same as the MIDI channel number that it enables DEFAULT Channel 1 PROGRAM CHANGE ENABLE DISABLE PROGRAM CHANGE NUMBERS 17 18 Determines whether or not the LMC will respond to further Program Change messages Program Change 17 enables the LMC to respond to subsequent Pro gram Change messages while Program Change 18 blocks all subsequent Program Change messages except number 17 Program Change Enable and 65 SYSTEM RESET Page 8 Lintronics MIDI converter LMC VOLUME CONTROL PROGRAM CHANGE NUMBERS 19 24 Selects the MIDI control source which will control volume as shown below 19 Note on Velocity 20 MIDI Channel Pressure Aftertouch 21 MIDI Channel Volume Control 7 22 Maximum volume no MIDI control Default KEYBOARD NORMAL INVERSE PROGRAM CHANGE NUMBERS 36 37 36 Keyboard operates normally pitch goes up as you play higher keys Default 37 Keyboard is inverted pitch goes down as you play higher keys MOD WHEEL PRODUCES KEYBOARD GLIS 23 Either Breath Controller Control 2 or Foot Controller Control
14. e template Drill all the holes the hole sizes are marked on the tem plate Take one of the 8 32 flat head screws out of the hardware envelope Countersink the two 3 16 holes until the flat head screw goes in just deep enough so that it is flush with the mounting sur face Use your 5 8 hole punch to make the hole for the MIDI connector 5 Clean out all shavings from the Minimoog chassis One metal shaving in the wrong place can cause a meltdown 6 Look at the three control inputs jacks of the Minimoog Refer to Figure 2 Remove the short jumpers going from J2 2 to J2 3 and from J1 2 to J1 3 Remove the 33K resistor that is connected to J3 2 Remove the jumper that goes from SO1 1 the wide prong of the S trig input socket to J1 2 Add a jumper from SO1 1 to J1 3 Clean the solder off J1 2 J2 2 and J3 2 7 Mount the toggle switch as follows The switch comes with two nuts a lockwasher and an indexing washer Position the first nut on the switch bushing about 1 8 from the switch body Put the lockwasher on the bushing Place the switch in the 1 4 hole that you ve just drilled so that the slot in the bushing faces the back of the Minimoog Place the indexing washer on the bush ing The washer s indexing tab should go into the 5 64 hole Finally screw the second nut on the bushing and gently tighten with a 5 16 nut driver Do not overtighten as this may break the switch bushing 8 Using the 4 40 screws lockwasher
15. eed with your MIDI Modulation Wheel then release the key WAVEFORM OF ON BOARD LFO PROGRAM CHANGE NUMBERS 41 47 41 Triangular Default 42 Sawtooth Falling 43 Sawtooth Rising 44 Square 50 pulse width 45 Rectangular 25 pulse width 46 Rectangular 12 5 pulse width 47 Random steps like Sample and Hold LFO WAVEFORM POLARITY PROGRAM CHANGE NUMBERS 48 49 48 Waveform goes positive Default 49 Waveform goes negative LFO WAVEFORM SPEED RANGE PROGRAM CHANGE NUMBERS 50 52 50 High speed range 0 6 Hz to 6 Hz Default 51 Medium speed range 0 06 Hz to 0 6 Hz 52 Low speed range 0 006 Hz to 0 06 Hz WAVEFORM RESET PROGRAM CHANGE NUMBERS 53 54 53 LFO resets whenever a new note starts 54 LFO does not reset whenever a new note starts Default Page 9 Lintronics MIDI converter LMC KEYBOARD MODE PROGRAM CHANGE NUMBERS 55 64 Two keyboard modes are available Mono and Poly In the mono keyboard mode the LMC re sponds to all MIDI note on messages and then plays the lowest key depressed or the highest key depressed depending on which key priority is se lected This is the mode that you would normally select if you are using one LMC equipped Mini moog in your MIDI system In the poly keyboard mode an LMC responds to every eighth MIDI note on message All program change messages within the range 56 64 turn on the poly keyboard mode The difference
16. faults Page 10 Lintronics MIDI converter LMC USING THE LMC HOOKING YOUR LMC UP Your LMC equipped Minimoog may be used with or without a MIDI controller If you do not use a MIDI controller you will find that your Minimoog works exactly the same as a regular non LMC Minimoog but in addi tion has an extra LFO which produces a 6 Hz trian gular wave See DEFAULT SETTINGS above If you use a MIDI controller that has only one MIDI OUT you will have to connect the MIDI IN of your LMC to the end of the MIDI chain If your MIDI controller has more than one MIDI OUT you have the option of dedicating one of these outputs just to control the LMC USING PROGRAM CHANGE COMMANDS All programming of your LMC is done through MIDI Program Change messages For this reason it is de sirable to use a MIDI controller that provides con venient means for generating program change mes sages 1 through 65 In addition you should ensure that your control ler does not generate unwanted program change messages For instance certain MIDI controllers re quire you to push two buttons to generate some pro gram change numbers but only one button to gener ate other program change numbers In these control lers you generate one program change when you hit the first button and a different program change when you hit the second button Controllers that op erate in this way are difficult to use with the LMC Many dedicated devices and
17. l input jack the LMC FILTER voltage is disabled MODULATION AMOUNT The MOD 1 and MOD 2 terminals of the LMC form a variable resistor whose resistance is deter mined by the MIDI message that you ve selected for modulation amount control These terminals are connected in series with the output of the Mod ulation Mix circuit of the Minimoog which feeds the Minimoog s right hand wheel The right hand wheel of the Minimoog is still active This means that when using MIDI messages to control modu lation amount you should set the Minimoog s right hand wheel all the way up LFO The LMC contains a digitally programmable mul tiwaveform LFO Low Frequency Oscillator The LFO output is called EXT A toggle switch next to the MIDI IN connector on the back of the Mini moog enables you to switch in the LFO signal in place of the Minimoog s noise modulation signal DECAY The two DECAY terminals of the LMC form a switch which is opened and closed by the MIDI Sustain Pedal control change message 64 These terminals are connected in series with the Decay switch on the Minimoog left hand controller block Thus the Minimoog Decay switch should be off in order for the LMC Decay function to work GLIDE The two GLIDE terminals of the LMC form a switch which is opened and closed by the MIDI Portamento On Off control change message 65 These terminals are connected across the Mini moog s glide control and switch Thus the Mini moog
18. n each of the counter sunk holes which you have drilled on the top panel of the chassis Position the LMC circuit board next to the Minimoog power supply board with the components facing out and the mounting brackets facing up Put a 10 fiber washer over one of the brackets and drive the appropriate screw into the bracket The purpose of the fiber washer is to space the bracket away from the screw head so that the screw doesn t run out of threads Do the same thing with the other screw Tighten each screw firmly 16 Mate the two 2 pin connectors Mate the two 3 pin connectors Mate the two 4 pin connec tors Position them toward the front panel so that they will not tend to touch the oscillator or the fil ter amplifier boards 17 Mate the 9 pin connector on the Contour Key board board with the mating connector on the LMC board Then re install the Contour Keyboard board 18 Re install the Oscillator board and the Fil ter Amplifier board 19 Your LMC installation is now ready for a tri al run The following quick checks will indicate whether or not your installation is operating prop erly After connecting a monitor amp and turning the Minimoog on a Play the Minimoog keyboard It should play normally b Turn up the modulation wheel set the MOD ULATION MIX knob to Noise and set the OSCIL LATOR MODULATION switch on Press a key and listen to the modulation As you switch the LMC toggle switch back and for
19. n you first turn on your LMC equipped Minimoog your instrument will perform exactly as a normal Minimoog with the following exception The new switch next to the MIDI IN jack deter mines what modulation signal will be active when the Minimoog s MODULATION MIX pot is at the NOISE end full clockwise When the switch is in the NOISE position the Minimoog works normally But when the switch is in the EXT LFO position the modulation signal comes from the LMC s on board LFO Low Frequency Oscillator Your LMC may be programmed with MIDI Program Change messages 1 to 65 The lami nated Lintronics MIDI Interface Program Change Table which is included with your LMC summarizes what these messages do As soon as you first turn on your LMC equipped Minimoog the following conditons are in effect MIDI messages are received on MIDI Channel 1 Note on and Note off messages over the note range 36 99 are recognized Low note keyboard priority is in effect Pitch Bend messages create pitch bends over a 3 semitone range Minimoog Amount of Modulation is controlled by both the Minimoog s right hand wheel and MIDI Modulation Amount messages Control Change 1 MIDI control of volume and filter cutoff is not en abled External LFO signal is a triangular wave of about 6 Hz Minimoog Decay is switched on and off by MIDI Sustain Pedal message Control Change 64 Minimoog Glide is switched on and off by MIDI Portamento Pe
20. ot use the Minimoog s keyboard while the LMC is re sponding to one or more MIDI note on messages PITCH BEND The BEND output of the LMC produces a volt age from approximately 0 55 volts to 0 55 volts in response to MIDI pitch bend messages This output controls the Minimoog s oscillators through a bridging contact on the Oscillator control input jack on the rear panel Thus when there is no plug in this jack the LMC BEND voltage is active when there is a plug in the Oscillator control input jack the LMC BEND voltage is disabled LOUDNESS The VOL output of the LMC produces a volt age from O volts to 5 volts in response to the MIDI message that you ve selected for volume control This output controls the Minimoog s am plitude through a bridging contact on the Loudness control input jack on the rear panel Thus when there is no plug in this jack the LMC VOL voltage is active when there is a plug in the Loudness control input jack the LMC VOL volt age is disabled FILTER The FILTER output of the LMC produces a voltage of 0 volts to 5 volts in response to the MIDI message that you ve selected for filter con trol The output controls the Minimoog s filter Page 12 Lintronics MIDI converter LMC cutoff through a bridging contact on the Filter control input jack on the rear panel Thus when there is no plug in this jack the LMC FILTER voltage is active when there is a plug in the Filter contro
21. s and nuts in the hardware envelope mount the MIDI DIN connector Position the connector so the five con tacts are toward the back of the Minimoog The mounting screws go in from the top the lock washers go between the nuts and the chassis 9 Look at the back of the Minimoog WHITE PINK noise selector switch Refer to Figure 2 Carefully desolder and remove the blue wire from terminal 2 of the White Pink switch This is the wire that feeds the modulation signal to the noise end of the Minimoog Modulation Mix pot Solder this blue wire to the free end of the blue wire on the toggle switch that you ve just installed Place a short length of heat shrink tubing on the wires be fore making the splice or wrap the splice with electrical tape after it is soldered Finally solder the free end of the yellow wire on the toggle switch to terminal 2 of the Minimoog White Pink switch 10 Solder the free end of the white black wire to J1 2 Solder the free end of the white green wire to J2 2 Solder the free end of the white yellow wire to J3 2 Then position this cable so it runs along the bottom of the Minimoog chassis next to the circuit board connectors 11 Look at the Minimoog Power Supply board The board with the aluminum heat sinks at the left end Find R57 1K ohms in the lower right cor ner of the board Remove this resistor and clean off the solder pads Then take the short cable as sembly with the two pin connector
22. s among them are that each of these messages activates a dif ferent note in the eight note cycle Thus up to eight LMC equipped Minimoogs can be hooked up to form a polyphonic ensemble Here is a list of all the MIDI Program Change messages that affect the keyboard mode 55 Mono keyboard mode LMC responds to all MIDI note on messages Default 56 Poly keyboard mode LMC responds to one of the notes in the eight note cycle The number of the note in the cycle is preset and is permanently burned into the LMC s micro processor The normal number is 1 You can order an LMC microproces sor with any number from 1 to 8 For further infor mation call Big Briar s Customer Service Depart ment 57 Poly keyboard mode LMC responds to the first note in the eight note cycle 58 Poly keyboard mode LMC responds to the second note in the eight note cycle 59 Poly keyboard mode LMC responds to the third note in the eight note cycle 60 Poly keyboard mode LMC responds to the fourth note in the eight note cycle 61 Poly keyboard mode LMC responds to the fifth note in the eight note cycle 62 Poly keyboard mode LMC responds to the sixth note in the eight note cycle 63 Poly keyboard mode LMC responds to the seventh note in the eight note cycle 64 Poly keyboard mode LMC responds to the eighth note in the eight note cycle SYSTEM RESET PROGRAM CHANGE NUMBER 65 Resets all settings to their power on de
23. small vacuum to remove metal shavings 1 Remove the back cover of the Minimoog Remove all four of the plug in circuit boards Note how the mounting hardware is used so you rein stall the boards correctly Place a rag or piece of cardboard over the Minimoog s circuit board con nectors to keep metal shavings from falling into the connectors Page 13 Lintronics MIDI converter LMC 2 Look at the LMC Kit Template This clear plastic sheet serves two purposes it locates the holes that you must drill and it provides labels for the switch and the MIDI IN connector The holes you must drill are a a 1 4 hole for the toggle switch b a 5 64 hole for the alignment key of the toggle switch c two 1 8 holes for the MIDI con nector s mounting screws d a starting hole usu ally 1 4 or 5 16 for the 5 8 punch for the MIDI IN connector itself and e two countersunk 3 16 holes to mount the LMC circuit board Note that the three Minimoog output jacks are shown to show you how to position the template on the Min imoog 3 Using sharp scissors carefully cut along the dotted lines that define the outline of the template Then position the template up against the Mini moog s output jack washers Carefully line up the centers of the switch and MIDI connector holes with the centers of the Minimoog output jacks Then temporarily tape down the template 4 Using the center punch mark the centers of the holes to be drilled Remove th
24. th the modulation should alternate between noise the normal Mini moog function and a triangular wave modulation of about 5 Hz the LMC Low Frequency Oscillator c Connect the MIDI OUT of your MIDI control ler to your Minimoog s MIDI IN Set your MIDI controller to MIDI channel 1 Playing your control ler s keyboard should have the same effect as play ing the Minimoog keyboard d Your controller s pitch bender should bend the pitch of the Minimoog With the Minimoog mod wheel turned all the way up your controller s Mod Amount wheel should control the amount of modu lation in the Minimoog e With your Minimoog s DECAY switch off depressing your controller s Sustain pedal should cause the Minimoog s tones to sustain With your Minimoog s GLIDE switch on your controller s Portamento pedal should cause the Minimoog s tone to glide If you observe all these conditions you may pro ceed to a more thorough exercise of the LMC s functions Page 15
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