Alyseum MS-MATRIX User manual

MS-MATRIX – User’s manual © - Revision 1.8
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MS-MATRIX - User manual
This symbol is intended to alert the user of important operating and maintenance
(servicing) instructions in the literature provided with the equipment.
This symbol is intended to alert the user of the presence of uninsulated dangerous
voltage within the product’s enclosure that may present a risk of electric shock.
1 Caution
Read Instructions: read and understand all of the safety and operating instructions before
using this equipment.
Retain Instructions: the safety instructions should be kept for future reference.
Follow Warnings: follow all warnings and instructions marked on the equipment or in the
user manual.
Avoid Attachments: do not use tools or attachments that are not recommended by
Alyseum as they may prove to be hazardous.
Installation:
●Choose the installation location of your unit carefully.
●Avoid placing it in direct sunlight or close to a source of heat.
●Additionally avoid locations subject to vibrations and excessive dust, heat, cold or
moisture.
Servicing:
 Refer all servicing to qualified service personnel.
 There are no user-serviceable parts inside.
 To prevent the risk of shock, do not attempt to service this equipment yourself
because opening or removing covers may expose you to dangerous voltage or other
hazards.
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.

MS-MATRIX – User’s manual © - Revision 1.8
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2 Contents
1Caution............................................................................................................... 1
2Contents............................................................................................................. 2
3What is the MS-MATRIX ?................................................................................. 4
3.1 Features ....................................................................................................... 4
3.2 Specifications ............................................................................................... 4
3.3 Bloc diagram ................................................................................................ 5
4Hardware............................................................................................................ 6
4.1 Package Content .......................................................................................... 6
4.2 Expander Options......................................................................................... 6
4.3 Installing the MS-MATRIX ............................................................................ 6
4.4 Front Panel................................................................................................... 7
5Software ............................................................................................................. 8
5.1 Initialization Sequence.................................................................................. 8
5.2 Mode Selection............................................................................................. 8
5.3 IN / OUT Mode ............................................................................................. 8
5.4 PRESET Mode ............................................................................................. 9
5.4.1 Loading a Preset....................................................................................... 9
5.4.2 Saving a Preset......................................................................................... 9
5.4.3 Saving a Preset Automatically ................................................................ 10
5.5 MIDI / CV Mode .......................................................................................... 10
5.6 Settings ...................................................................................................... 11
5.6.1 Assigning a MIDI Note to Preset 01 ........................................................ 11
5.6.2 Setting Auto Save or Manual Save ......................................................... 11
5.7 Factory Reset ............................................................................................. 12
5.8 MIDI Bootloader.......................................................................................... 12
5.9 MS-MATRIX Editor ..................................................................................... 14
5.9.1 Matrix Editor Tab..................................................................................... 14
5.9.2 MIDI Device Selector .............................................................................. 14
5.9.3 Preset Selector ....................................................................................... 15
5.9.4 MS-MATRIX Actions ............................................................................... 15
5.9.5 File Actions ............................................................................................. 15
5.9.6 Labels ..................................................................................................... 15
5.9.7 Active-Preset Changer Tab..................................................................... 16

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6Miscellaneous.................................................................................................. 17
6.1 Disclaimer................................................................................................... 17
6.2 Maintenance............................................................................................... 17
6.3 Static Electricity, ESD................................................................................. 17
6.3.1 Some tips and precautions for ESD sensitive environment .................... 17
6.3.2 Standard symbols for ESD advertising ................................................... 17
6.4 Statement and Agency Compliance ........................................................... 18
6.4.1 WEEE (for EU countries) ....................................................................... 18
6.4.2 RoHS Compliance (for EU countries) .................................................... 18
6.4.3 CE (for EU countries)............................................................................. 18
6.5 Warranty and repair.................................................................................... 18
6.6 MIDI Chart .................................................................................................. 19

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3 What is the MS-MATRIX ?
The Alyseum MS-MATRIX is a Eurorack module consisting of a dynamic matrix, both
analog and digital in nature, which supports 16 inputs and 16 outputs. A special 256 LED
display makes for a friendly and intuitive graphical user interface, with each LED
representing one of the 256 points of connections available.
The module accepts a variety of signals such as Gates, Clocks, CV and VCO
simultaneously, while the different user configurations can be saved as user Presets in 32
locations.
These Presets can be recalled manually, by a dedicated CV Input on the front panel, by
MIDI (either incoming Note On or CC).
The Input and Output expander mixer modules can be controlled by MIDI commands from
the main unit via infra-red (IR) link. No need for additional cables which might cause
ground loops or interferences!
3.1 Features
●Specialized single Chip from Analog Device (AD75019) which guarantees:
o Wide signal range: from –11 Volts to +11 Volts
o Isolation between any two channel: -92dB at 1 KHz
o Low distortion: 0,01%
o Low noise
o High bandwidth DC up to 20KHz
●16 low offset input & output buffers
●32 presets storage in flash memory, selectable manually, via MIDI (Note or CC),
Control Voltage, or the Make Noise CTRLSEL line of modules
●Programmable MIDI channel number for PGM CH or NOTE.
●Optical hi-speed infra-red (IR) data emitter to control the slave modules MS-4VCAL
and MS-4VCAR, with: Zero HF noise, Zero risk of ground loop and Zero cables.
3.2 Specifications
●Front panel width: 132 mm (26HP)
●Module maximum depth: 26 mm
●Inputs jacks: 3.5 mm - ring/tip
●CV and Digital input maximum level: -11 to +11 Volts
Power requirements: +12 Volts regulated at 50 mA, -12 Volts regulated at 50 mA, +5 Volts
regulated at 150 mA

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3.3 Bloc diagram
MS-MATRIX
MCU
TX
IR
Transmit
IR
Transmit
OUTPUT / LOAD
INPUT / SAVE
MODE
MIDI IN
MIDI / CV
IN / OUT
PRESET
HV 16 x 16
Crosspoint
switch array
IN 1
Buffer
IN 16
Buffer
OUT 1
Buffer
OUT 16
Buffer
LED CTRL
CV IN
12V
12V
5V
Not connected source to the input 16, this input can be used only if the entries from 1 to 15
are all used.

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4 Hardware
4.1 Package Content
●One MS-MATRIX module with Eurorack compliant front panel and power ribbon
cable
●One plastic bag containing:
o Four M3 screws
o Four M3 nylon washers
o Power cable
●Warranty & user manual access card
4.2 Expander Options
●MS-4VCAI - Quad VCA Input module
●MS-4VCAO - Quad VCA Output module
4.3 Installing the MS-MATRIX
To install the MS-MATRIX follow these instructions carefully:
●Disconnect the Eurorack case from the main power supply by unplugging it from the
wall socket!
●Never use a power supply that delivers more than a range of -12 to +12 Volts
●Make sure that the power source of your Eurorack case is able to deliver a current of
o 150 mA delivered via the +5 Volt rail
o 30 mA delivered via both the -12 and +12 Volt rails
●Only connect the module to a Eurorack bus board powered by a specified A-100
power supply
●Make absolutely certain that the ribbon cable has the right orientation by connecting
the indicated red stripe on the negative 12 Volt side of your Eurorack case bus board
●Be advised that failure to properly plug in the power cable may result in the module
malfunctioning or being destroyed as soon as the power is turned back on
●Also be advised that for modules that have been damaged by being connected to the
bus board in a wrong way the warranty is void!
●Carefully place the module on an appropriately spaced spot on your Eurorack and
fasten it firmly in place with the supplied screws and nylon washers. Replace any
covers or blanking plates that you removed to install the module and screw them in
firmly
●Reconnect the Eurorack case power cable back into the main power supply and
switch the case power on
●Test out your newly installed MS-MATRIX module by following the instructions of
Chapter 5.1 Initialization Sequence
●If it doesn’t seem to be working as expected, immediately disconnect the system
from the mains power supply again. In this case, double-check the connections,

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making completely sure that the ribbon cable is the right way round where it connects
to the module and the bus.
4.4 Front Panel
1. MIDI IN port: The MIDI input for Preset selection via MIDI devices (DIN5)
2. CV jack plug: CV input for Preset selection (3,5 mm jack)
3. INPUT 1 – 16 jack plug: The sixteen inputs of the matrix (3,5 mm jack)
4. OUTPUT 1 – 16 jack plug: The sixteen outputs of the matrix (3,5 mm jack)
5. OUTPUT/LOAD push encoder: Rotary encoder with momentary push button
6. INPUT/SAVE push encoder: Rotary encoder with momentary push button
7. IN/OUT LED (red): When turned On it indicates that IN/OUT Mode is engaged
8. PRESET LED (green): When turned On it indicates that Preset Mode is engaged
9. MIDI/CV LED (green): When turned On it indicates that MIDI/CV Mode is engaged
10. Push Button: Scrolls through the different Modes
11. Graphical LED display (green): A LED array indicates the current connections of the matrix
12. IR LED emitter: Transmits data to the MS-4VCAI and MS-4VCAO expanders

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5 Software
5.1 Initialization Sequence
1. Turn the Eurorack case power on
2. The brand name Alyseum is displayed on the LED array for
less than a second
3. The three mode LEDs flash for half a second each
4. The matrix stored in the last used Preset is loaded and
displayed on the LED array.
5. A MIDI signal is sent via IR, informing slave modules that the
particular Preset has been loaded.
5.2 Mode Selection
Push the Mode button to select the desired mode
●No Mode (All LED Mode Off)
●IN / OUT
●PRESET
●MIDI / CV
5.3 IN / OUT Mode
To select a connection between an input and an output on the matrix:
1. Select IN/OUT Mode (see paragraph 5.2)
2. The line and column guides appear on the LED array.
3. Turn the INPUT/SAVE encoder to select a row.
The selected row number corresponds to the input jack of the same number
4. Turn the OUTPUT/LOAD encoder to select a column.
5. The selected column number corresponds to the output jack of the same number
To activate the selected connection push either the INPUT/SAVE or the OUTPUT/LOAD
encoder until the corresponding LED is turned ON. The line and column guides disappear.
To deactivate the selected connection push either the INPUT/SAVE or OUTPUT/LOAD
encoder until the corresponding LED is turned OFF. The line and column guides disappear
To move on to another connection, turn the INPUT/SAVE or the OUTPUT/LOAD encoder
and then go to step 4 .
The MS-MATRIX does NOT function as a mixer. Please refer to the expander for mixer
function.
While it is possible to map one input location to several output locations (and thus have the
MS-MATRIX act as a multiplier), it is impossible to map several inputs to the same output.
IN / OUT
PRESET
MIDI / CV
No Mode

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All outputs not specifically connected to an input, are by default connected to input 16, so
as to avoid interference between analog audio channels. Please do not use input 16
unless all other inputs (1-15) are already connected to an output.
5.4 PRESET Mode
Presets can be loaded in several ways: manually, by the dedicated CV Input located on
the front panel, by MIDI (either incoming Note On or CC), or by the Make Noise CTRLSEL
line of modules.
5.4.1 Loading a Preset
Loading a Preset manually is always possible regardless of the
method selected by MIDI/CV Mode (see paragraph 5.5)
To manually load a Preset:
1. Select PRESET Mode (see paragraph 5.2)
2. The last used Preset is recalled and its index (LOAD 01 to 32)
displayed for less than a second
3. The matrix stored in the last used Preset is displayed on the
LED array display.
4. Turn the OUTPUT/LOAD encoder to select a Preset location.
Presets are indexed in locations between LOAD 01 and LOAD 32. Preset index is
displayed for less than a second, and then the matrix stored in the selected Preset is
displayed (but not loaded yet).
5. Push the OUTPUT/LOAD encoder to confirm your selection.
6. The matrix connections are set according to the selected Preset. A MIDI signal is
sent informing slave modules that the particular Preset has been loaded.
5.4.2 Saving a Preset
To save the current matrix connections as a Preset:
1. Select PRESET mode (see paragraph 5.2)
2. The last used Preset is recalled and its index (LOAD 01 to 32)
displayed for less than a second.
3. The matrix stored in the last used Preset displayed on the LED
array display.
4. Turn the INPUT/SAVE encoder to select a Preset location.
Presets are indexed in locations between SAVE 01 and SAVE 32. Preset index is
displayed for less than a second, and then the matrix stored in the selected Preset is
displayed (but not overwritten yet).
5. Push the INPUT/SAVE encoder to confirm your selection.
6. The current matrix connections are stored to the selected Preset location. A MIDI
signal is sent informing slave modules that the particular Preset has been saved.
Remember to save your settings after editing a matrix. When a Preset location is already
occupied by having previous matrix saved to it, the Preset mode LED will be flashing
quickly while that Preset is selected in Preset Mode.

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Pushing the INPUT/SAVE encoder will overwrite the current matrix connections to the
specific location and the previously saved matrix will be lost.
5.4.3 Saving a Preset Automatically
When Auto Save is activated (see paragraph 5.6.2) there is no need for any action in order
to save a Preset as any change made is automatically saved.
This means that by activating or deactivating a connection while in IN/OUT Mode you also
alter the matrix saved on the specific Preset location.
5.5 MIDI / CV Mode
To select the method of loading a Preset:
1. Select MIDI/CV mode (see paragraph 5.2)
2. Turn the INPUT/SAVE encoder to select one of the five
settings: (see Operation Snapshot below).
A. PGM XX: Selects Preset by MIDI Program Change
messages (PGM CH) coming from the front panel MIDI port
(XX = MIDI channel 1 to16)
B. NOTE XX: Selects Preset by MIDI Note On messages
incoming from the front panel MIDI port (XX = MIDI channel
1 to 16)
C. CV FR: Selects Preset by CV coming from the front panel
input labeled CV (0 to +5 Volts)
D. — — : Selects Preset only manually (see paragraph
5.4.1.)
3. Push the INPUT / SAVE encoder to confirm your selection
4. Your selection has been saved as soon as the MIDI/CV Mode LED is turned Off.
When one of the five MIDI/CV Mode settings has been selected any incoming activity,
either from the MIDI IN input or the CV input, will be indicated by the flashing MIDI/CV
Mode LED.
All Preset changes due to midi or analog signals are ignored while IN/OUT Mode,
PRESET Mode or MIDI/CV Mode is active.
PGM 01
PGM 16
NOTE 01
NOTE 16
CV FRONT
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