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A-190

1. divisor clocks per note note length 1 96 1 96th 3 32 1 32nd 6 16 1 16th 12 8 1 8th 24 4 1 4 rT You can also use the A 160 clock divider to produce different divisions 10 A 100 DQHEP FER PROG CHANGE n n Divisor 1 64 on any MIDI channel w Increase or decrease the divisor CLOCK POLARITY This Parameter sets the polarity of the clock signals at output RE For use just with the A 100 select positive The negative setting is provided just for connection to other synths that use a nega tive pulse 79 H12V ey itive PROG CHANGE 65 positive ny 12 V negative sae PROG CHANGE 66 Use any MIDI channel to make these chan ges System Q O Offset Config Menu 3 REF OFFSET This parameter sets the voltage offset for the bottom note and works in the same way as the VCO s Tune control In normal use this is set to 0 V w Increase or decrease the amount of voltage offset I The INC and DEC buttons speed up if you keep holding them down Scale Config Menu 4 SCALE This parameter sets the fine scaling of the pitch control DAC so that MIDI and A 100 VCO notes are completely in tune over their whole range see dia gram on page 12 A 100 MIDI CV SYNC Interface A 190 After setting the bottom note and voltage offset you send a MIDI note to the A 190 usually the note ex actly an octave or several octaves
2. 20 System A 100 For the full reset b do the following O Switch the System A 100 off O Press and hold buttons to while turning the A 100 power back on The A 190 will confirm the full reset by flashing all its LEDs slowly for about five seconds then quickly for another five seconds CHANNEL System A 100 MIDI CV SYNC interface A 190 MIDI channel 1 REF NOTE C3 CLOCK TIME clock frequency at output MIDI clock frequency CLOCK POLARITY 12V positive AR RETRIGGER legato ie no retrigger LFO FREQ c 3 Hz GLIDE TIME no portamento BEND WIDTH 1 octave ASSIGN CV2 velocity ASSIGN MODE SCALE highest note about 1V octave not exactly The 1V oct scaling has to be re adjusted after an initialisation REF OFFSET H12V GATE POLARITY sod L RTRIG TIME 4 milliseconds CV CHAR 1V octave 21 A 190 MIDI CV SYNC interface CONFIG menu System A 100 PERFORMANCE menu Parameter Setting Default Parameter Setting Default CHANNEL NOTE ON ch n vel 1 REF NOTE NOTE ON ch n vel C3 CHANNEL INC DEC 1 GATE POL PROG CHG 1 PROG CHG 2 pos neg LFO FREQ W INC DEC GLIDE TIME PROG CHG n TIME nx 20 ms CV CHAR PROG CHG 3 PROG CHG 4 V octave Hz V ASSIGN MODE PROG CHG 1 PROG
3. CHG 2 Last Note Highest Note RETRIGGER OFF PROGCHG 5 ON PROG CHG 6 ARPEG no function at present CLOCK TIME PROG CHG n n Divisor CLOCK POL pos PROG CHG 65 neg PROG CHG 66 BEND WIDTH Reference note first NOTE ON Range note NOTE ON second 1 Octave MIDI controllers in PERFORMANCE mode REF OFFSET W INC DEC Controller Effect Setting SCALE INC DEC Cont 01 n Modulation n LFO voltage amount sent to CV 1 RETRIG TIME PROG CHG n RETRIG TIME n x 1 ms Cont 05 n Glide Time Portam Time n x 20 ms Cont 64 n Sustain n 0to63 Off n gt 63 On 22 ASSIGN CV 2 v Velocity NOTE ON OFF Program Change Controller n Pitch Bend Channel Aftertouch Polyphonic Aftertouch choice of MIDI controllers Cont 65 n Glide n 0to63 0ff n gt 63 On Cont 68 n Retrigger n 0to63 Off n gt 63 On Cont 92 n LFO Freq n LFO frequency CV 1 Cont 121 n All Cont Off n can be any number LFO modulation amount 0 Glide off Cont 123 n All Notes Off n canbe any number All notes off GATE off
4. O O O Oo i e 3 O pae COT O J O fp O O O MENU o MENU 7 MENU 5 e Q j I Edit Mode Performance Mode Changing parameters There are two ways of changing parameters on the A 190 either manually or by sending the appropriate MIDI messages which the A 190 learns Whenever possible use the latter method MIDI learning In chapters 4 2 and 4 3 the symbols 9 MIDI learning and w manual show the different methods possible In manual mode use the INC button to increase a parameter by one and the DEC button to decrease it by one All the LEDs flash once together each time a change is made In MIDI learning mode parameters are changed by sending appropriate MIDI messages to the A 190 For example in Config menu 1 the MIDI message PROG CHANGE 3 switches CV CHAR the type of pitch control voltage sent out to V Octave System A 100 MIDI CV SYNC Interface A 190 Switching back to performance mode When you ve made the change to the parameter you wanted to alter you can either change other parame ters in the same menu or go on to the next menu by pressing MENU button Repeatedly pressing the MENU button takes you through all the menus and then back to performance mode signified by all the menu LEDs being off see the diagram at top left I If you ve edited a parameter in one menu group and want to edit one in the other it s necessary to go back to performance mode first
5. System A 100 MIDI CV SYNC Interface A 190 Output for relaying MIDI messages sent to MIDI IN to another MIDI unit Input for MIDI messages MIDI clock signal or divided version output Reset signal output MIDI Start or Continue low voltage MIDI Stop high voltage GATE signal output normally connec ted internally to the A 100 system bus INT GATE line but can be dis connected Output for control voltage 1 D A converter 1 normally connected in ternally to the A 100 system bus INT CV line but can be disconnected Output for control voltage 2 D A converter 2 I NB On the front panel of the first production series the arrows were accidentally printed the wrong way round In these instructions though all the functions for instance selecting a menu group are described correctly see p 6 Group Perform cors E F Channelk ov p A 190 MIDI CV SYNC Interface 3 Starting to use the A 190 System A 100 J N B if you re using more than one A 190 The A 190 is normally connected up to the INT CV und INT GATE on the system bus If you want to run more than one A 190 with only a single system bus then only one of the A 190s must be connected to the system bus Disconnect the other A 190 modules from the system bus by cutting the two links labelled CV1 and GATE near the bus ribbon connector on the A 190 board Before switching
6. above the bottom note Using the SCALE parameter adjust the voltage sent to the VCO to ensure that the octaves are com pletely in tune IZ For use just with the A 100 it may well be fine to leave this at the standard factory setting of exactly 1 00 V octave X Increase or decrease the amount of voltage offest on the higher note i The INC and DEC buttons speed up if you keep holding them down In the example on page 12 after the V octave response bottom note MIDI note 36 and voltage offset 0 V have been set the SCALE parameter is adjusted so that when MIDI note 84 exactly four octaves above the bottom note is received the VCO note played is precisely four octaves higher That is the pitch CV is exactly four volts 11 A 190 MIDI CV SYNC Interface System A 100 QUEPFER CV2 Retrig Config Menu 5 O COCO Tt SCALE RTRIG TIME This parameter sets the gate retrigger time ie the time that elapses before another gate signal received triggers the envelopes Te ay When setting this always start with the shortest possi IF REF NOTE ble retrigger time 1 ms and see if the connected a module eg an ADSR triggers If it doesn t slowly increase RTRIG TIME until the module does respond to each new gate PROG CHANGE n n 0 127 RTRIG TIME nx1 ms W Increase or decrease the time in 1ms steps 0 to 255 12 00000 cv2 Config Menu 6 A
7. power up the first time you enter edit mode you automatically go to the performance menu group A 190 MIDI CV SYNC Interface Pressing the Group button switches to the other menu group the button acts as a toggle switch A mini light show indicates which group is selected Sequence of lights O fe 0 O o fe 0 O 0 O e Sequence of lights Performance Config Menu Menu For example if after switching on you need to alter GATE POLARITY in Config Menu 1 press the Group button once The light sequence goes upwards from the bottom LED and tells you that when you press the edit button you will be in the Config Menu Changing to edit mode When in performance mode switch over to edit mode by pressing the MENU button The top LED flas hes to tell you that you re in edit mode and can now access the parameters in the first menu in the group you selected with the group button System A 100 Edit Mode Menu 1 O00009 You can tell which menu group you re in by checking the speed at which the LED blinks slow blink Config menu fast blink Performance menu slow wf fast gt Symbols in the text Menu selection If the parameter you want to edit isn t in the first menu scroll through the other menus by repeatedly pressing the MENU button see the diagram on the next page e
8. they are not stored during the save procedure and on power up the A 100 will revert to the default factory setting CONTROL ch 92 n n 0 to 127 LFO frequency System A 100 MIDI CV SYNC interface A 190 CONTROLLER 121 All Controllers Off If this MIDI message is sent to the A 190 LFO amount will be set to 0 although the LFO keeps running at the same frequency and portamento is switched off CONTROL ch 12 n n 1 to 127 CONTROLLER 123 All Notes Off If this MIDI message is sent to the A 190 the gate is turned off and all notes still in the A 190 s memory are cleared Control voltages remain at the level at which they were last set CONTROL ch 123 n n 1 to 127 19 A 190 MIDI CV SYNC interface 4 6 Initialisation Reset When the A 190 is first switched on after leaving the factory its memory is initialised that is all parame ters are set to their standard default values see the table on page 21 You can always perform a reset and return the A 190 to these standard factory settings There are two forms of reset available a Only the parameters marked x in the table are reset b All the parameters in the table are reset For partial reset a do the following O Switch the System A 100 off O Keep the menu button pressed while turning the A 100 power back on The A 190 will confirm the partial reset by flashing all its LEDs slowly for about five seconds
9. your system on use a MIDI cable to connect between your MIDI instrument and the A 190 O Connect the A 190 s input socket MIDI IN to the MIDI OUT socket of your MIDI instrument master keyboard MIDI synth MIDI sequencer etc Now switch your System A 100 on The Gate LED will briefly light up to show you the A 190 s software version one blink Version 1 etc Patch the outputs of your A 190 to corresponding modules on the System A 100 1 The gate output and CV1 output are automa tically connected to the system bus of the A 100 so don t use patch cables to connect these unless you have cut the links or wish to connect to a module whose system bus isn t connected with the A 190 s have a look at the note on using more than one A 190 VCOs on the same system bus automati cally receive CV1 and ADSRs automatically re ceive the gate signal Output Connection notes CV2 Any module s CV input for instance a VCF s CV input for controlling the filter cut off point Clock For instance the A 160 s trigger input for MIDI synced sequences Reset The A 160 s reset input for MIDI control of start and stop messages the A 140 s gate or retrigger input for MlDI synchronised envelopes Use the CONFIG and PERFORM menus to tailor the MIDI set up to your requirements QHEP PER 4 1 Using the A 190 On power up the A 190 defaults to Performance mode T
10. 1 Introduction To install the A 190 please look at the important information on p 4 The A 190 is a MIDI CV SYNC Interface with which you can control any A 100 Module which has CV and gate trigger input sockets by MIDI The A 190 has two Digital to Analogue converters DAC for short which put out control voltages from 0 V to 5 V so that you can control not just the pitch but also another voltage controllable parameter on the A 100 DAC 1 is hard wired to receive MIDI note messages and convert them into control voltages available at CV output socket CV 1 The DAC has 12 bit resolution which gives excellent tuning resolution in steps of 1 4096th As a rule DAC 1 will be used to control VCO pitch DAC 2 can be assigned to your choice of MIDI con troller This DAC has 7 bit resolution 1 128th steps Its output is available at CV 2 and can be used for voltage control of any suitable module eg VCF VCA etc System A 100 MIDI CV SYNC Interface A 190 The A 190 also has a clock output controlled by MIDI clock This can be divided down to provide a variety of clock outputs and enable older sequencers or drum machines to be synced to MIDI A Reset Output provides control of the A 160 161 Clock Divider Sequencer or can produce MIDI synchronised gates for instance on an ADSR MIDI START or CONTINUE messages make the voltage at the Reset output go low and MIDI STOP messages make it go high In addit
11. E parameter controls note assign ment that is which note the VCO should produce when more than one key is held down at once Last Note Priority PROG CHANGE 1 Highest Note Priority PROG CHANGE 2 Any channel can receive the message w Select which type of note priority you want 15 A 190 MIDI CV SYNC interface System A 100 we Arpeg Performance Menu 5 O OOCO No function at present Reserved for future expansion e g arpeggiator oo0000 yf e Bendw Performance Menu 6 BEND WIDTH The BEND WIDTH parameter sets the pitch bend range For example if you set the range to a whole tone the pitch bender on your MIDI instrument will alter the A 100 s VCO pitch by a maximum interval of a semi tone up or down 16 9 fo o Y JUEPFEA The pitch bend range is set by the interval between two MIDI notes played in succes sion Reference note set by the first NOTE ON Range note set by the second NOTE ON Any channel can receive the message Set the pitch bend range QHEP PER 4 4 Storing set ups The A 190 is equipped with a non volatile memory EEPROM electrically eraseable programmable read only memory which will store your set up ready for when you switch the system back on If you just change the settings of various parameters the A 100 only stores these changes temporarily and they ll be lost when you switch the A 100 off To store any change
12. MIDI channel 1 to 16 Ey It s better to set MIDI channel by a MIDI message in config menu 1 where control is more direct 14 System A 100 yf je LFOFrq Performance Menu 2 000000 LFO FREQ The LFO Freq parameter controls the frequency of the A 190 s built in LFO Use your ears to decide the correct frequency With a parameter value of less than 3 the LFO is switched off w Set the LFO frequency from about 0 2 Hz to 20 Hz mrs The INC DEC buttons will speed up if you keep them pressed down IZ With the A 190 you re effectively getting an extra software LFO controlled over MIDI which can supplement the real LFOs A 145 A 146 in your A 100 system O O Glide Performance Menu 3 x GLIDE TIME The Glide Time parameter controls the length of the portamento time in the A 190 s built in glide porta mento function in steps of 20ms at a time PROG CHANGE n n 0 1 127 Glide Off Glide On GLIDE TIME n x 20 ms Any channel can receive the message Set the glide time 0 127 This parameter can also be controlled in real time by means of the MIDI portamento con troller Controller 5 See chapter 4 5 PERFORMANCE mode System A 100 MIDI CV SYNC interface A 190 IJ This MIDI function is like a software version of the A 170 Slew Limiter O O O wf e Assign Performance Menu 4 ASSIGN MODE The ASSIGN MOD
13. SSIGN CV2 This parameter sets which MIDI message is sent to DAC 2 and thus to the CV2 output socket The voltage output range is from 0 to 5 V Number for manual setting MIDI Event Velocity Program Change Controller n Pitch Bend channel aftertouch polyphonic aftertouch akRWN OO a Note On Off message must be sent W Manual assignment 0 to 5 System A 100 MIDI CV SYNC Interface A 190 RE Note that you can make the A 190 learn whatever MIDI controller you choose as the source for DAC 2 simply by sending it via MIDI IN while in Config menu 6 For instance if you move the data entry control MIDI Controller 6 on your master keyboard while the A 190 is in Config menu 6 this controller is assigned t o DAC 2 so that whenever it is moved CV2 s voltage changes correspondingly This is equally true for Main Volume MIDI Controller 7 Breath Controller Foot Controller etc If the resulting voltage change is too obviously quanti sed because MIDI has only 128 steps then the steps can be smoothed out with an A 170 slew limiter see the diagram 13 A 190 MIDI CV SYNC interface 4 3 PERFORMANCE Menus Channel Performance Menu 1 4 cooo0oog CHANNEL The CHANNEL parameter sets the MIDI receive channel MIDI messages received on this channel in performance mode are converted into CV and gate signals and output to whatever modules are connected to the A 190 W Set the
14. Then you can press the Group button to switch to the other menu group RE You can find a table showing all the parame ters in the CONFIG and PERFORMANCE menus as well as all the MIDI controllers on page 23 A 190 MIDI CV SYNC Interface 4 2 CONFIG menus cv1 Config Menu 1 COCCOe CHANNEL REF NOTE The CHANNEL parameter sets the MIDI receive channel In performance mode MIDI messages re ceived on this channel are converted to CV and gate signals and sent to whichever modules are connected to the A 190 either via the system bus or via patch leads REF NOTE sets the bottom note on the MIDI key board which will play the lowest note on the A 100 VCOs As arule this is MIDI note number 36 NOTEON ch n vel ch MIDI channel n MIDI note number System A 100 QHEP FER t Note that playing a note on the key board will set MIDI channel and bot tom note at the same time This method of setting the MIDI chan nel is preferable to the performance mode method which has no confirma tion W Change the bottom MIDI note 0 to 127 GATE POLARITY This parameter sets the polarity of the gate voltage IJ For use with the A 100 this parameter should always be set to positive The only time you may need to alter it is to control certain other makes of synthesizer positive Aha PROG CHANGE 1 12 V negative nn PROG CHANGE 2 QHEP PER CV CHAR This parameter sets the volta
15. dy mentioned in chapter 4 4 it also re cognises and converts the following controller messa ges i ch is short for MIDI channel CONTROLLER 01 Modulation This controller affects modulation intensity ie the amount of LFO voltage included in CV1 CONTROL ch n n 0 to 127 CONTROLLER 05 Portamento Time This controller affects portamento time see PER FORMANCE menu 3 Changes made using this con troller are only temporary they are not stored during the save procedure and on power up the A 100 will revert to the default factory setting 18 CONTROL ch 05 n n 0 to 127 Portamento time CONTROLLER 64 Sustain This controller switches sustain on and off CONTROL ch 64 n n 0 to 63 64 to 127 Sustain Off Sustain On CONTROLLER 65 Portamento This controller switches portamento on and off CONTROL ch 65 n n 0 63 64 127 Glide Off Glide On QHEP PER CONTROLLER 68 Legato The retrigger function see CONFIG menu 1 can also be switched on and off by this controller Changes made using this controller are only temporary they are not stored during the save procedure and on power up the A 100 will revert to the default factory setting CONTROL ch 68 n n 0 to 63 64 to 127 Retrigger Off Retrigger On CONTROLLER 92 Tremolo This controller can affect LFO frequency see PER FORMANCE menu 2 Changes made using this con troller are only temporary
16. ge control characteri stics of the pitch CV output from the A 190 so that it s possible to drive both common types of analog synth older Korgs Yamahas etc which have a linear re sponse Hz V and Rolands ARPs Moogs etc which have a logarithmic response 1V octave RE For use just with the A 100 the V octave response is all that is needed The Hz V option is provided purely for connecting to external synths which use that standard V I Octave Hz V PROG CHANGE 3 PROG CHANGE 4 System A 100 MIDI CV SYNC Interface A 190 RETRIGGER This parameter enables you to choose between single and multiple triggering of the ADSR With RETRIG GER on every time a key is pressed another gate signal is sent even if ie in legato playing another key is still held down at the time OFF ON PROG CHANGE 6 PROG CHANGE 5 ES This parameter can also be changed in per formance mode If even with RETRIGGER ON the gate isn t reliably re triggered set a higher value for the gate retrigger time in CONFIG menu 5 A 190 MIDI CV SYNC Interface joxereres 46 CLOCK TIME Clock Config Menu 2 This parameter sets the amount by which the MIDI clock is divided before being sent to the clock output See note length in the table below MIDI Clock pulses are 1 96th Note By setting the amount by which the clock is divided you can choose different note lengths System
17. his is the normal mode of operation in which the incoming MIDI information is converted to CV gate and clock signals according to the A 190 s settings You can check you re in performance mode by seeing if all the menu LEDs are off The gate LED reset LED and clock LED will light up in response to MIDI activity Clock e Reset Performance Mode OCO0O000 e Gate Since the A 190 gives you so many options for chan ging the way MIDI information is converted it was necessary to use a menu system for setting the va rious parameters There are two groups of menus with six menus in each The performance menus are where you can change important playing parameters such as bend width System A 100 MIDI CV SYNC Interface A 190 and portamento time the sort of parameters to which you need easy and frequent access The Config menus on the other hand contain confi guration parameters which are fundamentally impor tant to the whole MIDI set up but as a rule don t need to be changed often for instance gate polarity voltage response or re trigger time To alter parameters you need to be in edit mode The procedure is as follows e Select the menu group e Switch to edit mode e Select the menu which contains what you want to edit e Alter the parameters either manually or by MIDI e Return to performance mode Selecting menu group The A 190 is designed so that after
18. ion the A 190 allows for portamento glide and pitch bend and provides a software LFO These functions can all be switched on and off or altered by MIDI controllers All control parameters can be saved in non volatile memory ES The A 190 needs an additional power supply 5 V 50 mA for connection to the system bus A 190 MIDI CV SYNC Interface 2 Overview MIDI CV SYNC INTERF 7 e MIDI Group S Thru Menu fo s Inc t es pe Dec l 7 Clock Grou se Perform Config t g Channel CV1 LFO Frq _ Clock Glide Offset Assign Scale Arpeg O Rerig V1 Bend W gt CV2 cv2 Gate Reset l m System A 100 Controls and indicators Group Menu INC DEC Clock Reset Gate LEDs Button to select which menu section out of the Config and Performance menus is available for editing Button to select items in Edit Mode choose items to be edited and select items in Performance Mode Button for increasing a parameter value by one step at a time Button for decreasing a parameter value by one step at a time LED clock signal indicator for output LED reset signal indicator for output LED gate signal indicator for output Indicate the menu selected in edit mode O0EPFER In Outputs MIDI THRU MIDIIN Clock Reset GATE CV1 CV2
19. s in the set up you have to save the set up by simultaneously pressing both the INC and DEC buttons The A 190 signals that the save procedure has been successful in the following way e All LEDs light up while you press the buttons e All LEDs blink slowly for around three seconds e All LEDs blink quickly for around three seconds e The save procedure is then completed and all the LEDs go out The next time the A 100 is switched on the set up will be recalled It s possible to abort the save procedure by pressing any button while the LEDs are still blinking In this case all parameters revert to how they were before the save procedure started System A 100 MIDI CV SYNC interface A 190 Ey Its a much better idea to carry out the save procedure in PERFORMANCE mode indicated by all menu LEDs being off If you carry out this procedure in EDIT mode shown by one of the menu LEDs blinking there s always the danger of the active para meter being increased or decreased by one step the instant before it s saved because of the physical difficulty of pressing the INC and DEC buttons at precisely the same time Its always possible to alter the default set up with which the A 190 leaves the factory see chapter 4 6 Initialisation 17 A 190 MIDI CV SYNC interface System A 100 4 5 PERFORMANCE mode In performance mode the A 190 converts incoming MIDI messages into CV and gate signals As well as those alrea

A-190

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