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MRX7-D
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MUSIC LABORATORY CONTROLLER
MLC-200
Installation Guide
2 – MLC-200 Installation Guide
Contents
Introduction ............................................................................................... 3
Overview .......................................................................................................................................... 3
Preparations ..................................................................................................................................... 3
Workow .......................................................................................................................................... 4
1. Trial setup .............................................................................................. 5
2. Setting up the wireless access point (DHCP server) ........................... 5
3. Setting up MLA-200s ............................................................................ 6
4. Setting up the MRX7-D ....................................................................... 11
5. Setting up the audio network ............................................................. 12
6. Setting up the ML Touch App .............................................................. 15
7. Connecting audio devices ................................................................... 16
8. Operation check .................................................................................. 16
9. Mounting MLA-200 onto instruments ................................................ 18
Installation precautions (attaching to the instrument with included screws) ................................. 18
Installation procedure .................................................................................................................... 18
Installation examples ..................................................................................................................... 20
When placed on a at surface ....................................................................................................... 22
10. Final operation check ....................................................................... 23
11. Troubleshooting ................................................................................. 24
MLC-200 Installation Guide – 3
Introduction
Customer Support
If you need assistance at any time during the installation or when the MLC-200 system is in use, please contact Yamaha
Customer Support at 1-800-292-2982 and when prompted to choose a support department, enter code 44.
Overview
The Yamaha Music Laboratory Controller is a music education system that combines Yamaha know-how in music
education and electronics technology. This system is built to support communication between students and instructors
and to provide more uid guidance on individual and group performances. Instructors use the ML Touch application on
an iPad to operate the entire system, such as checking students’ performances, responding to questions and sending
performance data.
This system combines MRX7-D as the core of the audio network and MLA-200 (with a master unit for the instructor
and subordinate units for the students). Up to 24 subordinate units for students can be connected to one MRX7-D. At
maximum, a system can be built to connect 96 subordinate units with four MRX7-Ds.
This Setup Guide provides the necessary information for building and setting up the MLC-200 in a classroom. We
recommend that you read this information before and during setup.
Preparations
Items necessary for building the system
MLA-200
One for the instructor and a maximum of 96 for students
MRX7-D
A maximum of one MLA-200 for the instructor and 24 MLA-200s for
students can be connected to one MRX7-D. Up to four MRX7-Ds can be
connected.
PoE powered Ethernet switch
A power supply of 6 W or more per port is required
Ethernet cable
CAT5e (1000BASE-T) or higher grade STP cables are required. Prepare a
total number of cables equal to the number of MLA-200s + the number of
MRX7-Ds × 2 + the computer + the wireless access point + the Ethernet
switch.
USB cable (Type AB)
Use to communicate MIDI data with the instrument. Prepare the same
number as MLA-200s.
Audio cable
Use to connect the instrument and MLA-200. Prepare stereo cables with
standard headphones plugs.
Headphones/microphone headset
With 3.5 mm mini plugs (CTIA compliant)
Wireless access point/DHCP server
Use for communication between the iPad application and the hardware.
This device must be able to perform the DHCP server function of
assigning addresses to both wireless devices and LAN devices.
Audio playback device
Use a CD player, etc., to play back audio teaching materials
Microphone
For audio input by the instructor
iPad
Use to operate the “ML Touch” control application for the instructor.
iOS 12 or later is required.
ML Touch
This iPad application for instructors can be obtained for free
from the App Store
4 – MLC-200 Installation Guide
Items necessary only for setup
Workflow
Follow the workow below to build and set up the Music Laboratory System.
Windows computer
Use to specify settings during setup. A computer with an RJ-45 connector
and running Windows 10, Windows 8.1 or Windows 7 is required.
MTX-MRX Editor
Use to transfer the MRX7-D setup le data to MRX7-D when specifying
settings during setup. Install this application on a Windows computer. For
details on the installation and settings, refer to the MRX Setup Manual.
MRX7-D setup file
This le provides the settings for the Music Laboratory System.
One le per MRX7-D used is required.
ML Config Tool
This software automatically congures the audio network connection
between the MRX7-Ds and MLA-200s. Install this software on a
Windows computer.
Dante Controller
Use to change the audio network setup manually (for special settings)
and to check the status of the system
1. Trial setup
2. Setting up the wireless access point
(DHCP server)
3. Setting up MLA-200s
4. Setting up MRX7-Ds
5. Setting up the audio network
6. Setting up ML Touch
7. Connecting audio devices
8. Operation check
9. Installing the MLA-200 onto
the instrument
10. Final operation check
MLC-200 Installation Guide – 5
1. Trial setup
Before installing the devices in the classroom, perform a trial setup of the entire system to check the setup and operation
of each device.
Since it will be difcult to remove and attach the DIP switch cover and change the DIP switch settings after the MLA-200
is installed onto an instrument, we recommend checking the setup and operation of each device beforehand.
2. Setting up the wireless access point (DHCP server)
The “ML Touch” application for the instructor communicates with each device via Wi-Fi. For that reason, the network
must include a wireless access point.
The wireless access point used here must be able to perform the DHCP server function of assigning addresses to both
wireless devices and LAN devices.
Connect the wireless access point to the Windows computer, and then set it up.
2-1. Connect the computer and wireless access point with an Ethernet cable.
2-1. Check IP Settings of the Computer
Select “Obtain an IP address automatically” in the “Internet Protocol Version 4 (TCP/IPv4) Properties” dialog box
of “Network and Sharing Center” in the Windows Control Panel.
After selecting the setting, click the “OK” button.
This completes the network setup of the PC.
6 – MLC-200 Installation Guide
3. Setting up MLA-200s
Each MLA-200 in an audio network is differentiated by the unique ID that is specied.
Specify this ID with the DIP switch.
3-1. With nothing connected, open the DIP switch cover on the rear panel.
One side of the cover remains attached. Disengage the side that does not remain attached, and then slowly
open the cover.
3-2. Set the DIP switch.
The switches of the DIP switch are set to ON when it is down and OFF when it is up.
As a default, all switches are set to OFF (up).
NOTE
Be sure to view the DIP switch in its proper orientation.
Set the DIP switch for each MLA-200 according to the following tables.
For your convenience, please go to your favorite browser and use our MLA 200 Student Number Helper
for DIP Switch Settings.
https://usa.yamaha.com/products/musical_instruments/entertainment/mlc-200/setup.html#product-tabs
Dip switch cover
MLC-200 Installation Guide – 7
3. Setting up MLA-200s — continued
Instructor and students 1 to 24 (MRX7-D ID=1)
SW
1 2 3 4 5 6 7 8
Instructor OFF OFF OFF OFF OFF OFF OFF ON
Student 1 OFF OFF OFF OFF OFF OFF ON OFF
Student 2 OFF OFF OFF OFF OFF OFF ON ON
Student 3 OFF OFF OFF OFF OFF ON OFF OFF
Student 4 OFF OFF OFF OFF OFF ON OFF ON
Student 5 OFF OFF OFF OFF OFF ON ON OFF
Student 6 OFF OFF OFF OFF OFF ON ON ON
Student 7 OFF OFF OFF OFF ON OFF OFF OFF
Student 8 OFF OFF OFF OFF ON OFF OFF ON
Student 9 OFF OFF OFF OFF ON OFF ON OFF
Student 10 OFF OFF OFF OFF ON OFF ON ON
Student 11 OFF OFF OFF OFF ON ON OFF OFF
Student 12 OFF OFF OFF OFF ON ON OFF ON
Student 13 OFF OFF OFF OFF ON ON ON
OFF
Student 14 OFF OFF OFF OFF ON ON ON ON
Student 15 OFF OFF OFF ON OFF OFF OFF OFF
Student 16 OFF OFF OFF ON OFF OFF OFF ON
Student 17 OFF OFF OFF ON OFF OFF ON OFF
Student 18 OFF OFF OFF ON OFF OFF ON ON
Student 19 OFF OFF OFF ON OFF ON OFF OFF
Student 20 OFF OFF OFF ON OFF ON OFF ON
Student 21 OFF OFF OFF ON OFF ON ON OFF
Student 22 OFF OFF OFF ON OFF ON ON ON
Student 23 OFF OFF OFF ON ON OFF OFF OFF
Student 24 OFF OFF OFF ON ON OFF OFF ON
3. Setting up MLA-200s — continued
Students 25 to 48 (MRX7-D ID=2)
8 – MLC-200 Installation Guide
SW
1 2 3 4 5 6 7 8
Student 25 OFF OFF OFF ON ON OFF ON OFF
Student 26 OFF OFF OFF ON ON OFF ON ON
Student 27 OFF OFF OFF ON ON ON OFF OFF
Student 28 OFF OFF OFF ON ON ON OFF ON
Student 29 OFF OFF OFF ON ON ON ON OFF
Student 30 OFF OFF OFF ON ON ON ON ON
Student 31 OFF OFF ON OFF OFF OFF OFF OFF
Student 32 OFF OFF ON OFF OFF OFF OFF ON
Student 33 OFF OFF ON OFF OFF OFF ON OFF
Student 34 OFF OFF ON OFF OFF OFF ON ON
Student 35 OFF OFF ON OFF OFF ON OFF OFF
Student 36 OFF OFF ON OFF OFF ON OFF ON
Student 37 OFF OFF ON OFF OFF ON ON OFF
Student 38 OFF OFF ON OFF OFF ON ON
ON
Student 39 OFF OFF ON OFF ON OFF OFF OFF
Student 40 OFF OFF ON OFF ON OFF OFF ON
Student 41 OFF OFF ON OFF ON OFF ON OFF
Student 42 OFF OFF ON OFF ON OFF ON ON
Student 43 OFF OFF ON OFF ON ON OFF OFF
Student 44 OFF OFF ON OFF ON ON OFF ON
Student 45 OFF OFF ON OFF ON ON ON OFF
Student 46 OFF OFF ON OFF ON ON ON ON
Student 47 OFF OFF ON ON OFF OFF OFF OFF
Student 48 OFF OFF ON ON OFF OFF OFF ON
MLC-200 Installation Guide – 9
SW
1 2 3 4 5 6 7 8
Student 49 OFF OFF ON ON OFF OFF ON OFF
Student 50 OFF OFF ON ON OFF OFF ON ON
Student 51 OFF OFF ON ON OFF ON OFF OFF
Student 52 OFF OFF ON ON OFF ON OFF ON
Student 53 OFF OFF ON ON OFF ON ON OFF
Student 54 OFF OFF ON ON OFF ON ON ON
Student 55 OFF OFF ON ON ON ON OFF OFF
Student 56 OFF OFF ON ON ON ON OFF ON
Student 57 OFF OFF ON ON ON ON ON OFF
Student 58 OFF OFF ON ON ON ON ON ON
Student 59 OFF OFF ON ON ON ON OFF OFF
Student 60 OFF OFF ON ON ON ON OFF ON
Student 61 OFF OFF ON ON ON ON ON OFF
Student 62 OFF OFF ON ON ON ON ON
ON
Student 63 OFF ON OFF OFF OFF OFF OFF OFF
Student 64 OFF ON OFF OFF OFF OFF OFF ON
Student 65 OFF ON OFF OFF OFF OFF ON OFF
Student 66 OFF ON OFF OFF OFF OFF ON ON
Student 67 OFF ON OFF OFF OFF ON OFF OFF
Student 68 OFF ON OFF OFF OFF ON OFF ON
Student 69 OFF ON OFF OFF OFF ON ON OFF
Student 70 OFF ON OFF OFF OFF ON ON ON
Student 71 OFF ON OFF OFF ON OFF OFF OFF
Student 72 OFF ON OFF OFF ON OFF OFF ON
3. Setting up MLA-200s — continued
Students 49 to 72 (MRX7-D ID=3)
10 – MLC-200 Installation Guide
SW
1 2 3 4 5 6 7 8
Student 73 OFF ON OFF ON ON OFF ON OFF
Student 74 OFF ON OFF ON ON OFF ON ON
Student 75 OFF ON OFF ON ON ON OFF OFF
Student 76 OFF ON OFF ON ON ON OFF ON
Student 77 OFF ON OFF ON ON ON ON OFF
Student 78 OFF ON OFF ON ON ON ON ON
Student 79 OFF ON OFF ON OFF OFF OFF OFF
Student 80 OFF ON OFF ON OFF OFF OFF ON
Student 81 OFF ON OFF ON OFF OFF ON OFF
Student 82 OFF ON OFF ON OFF OFF ON ON
Student 83 OFF ON OFF ON OFF ON OFF OFF
Student 84 OFF ON OFF ON OFF ON OFF ON
Student 85 OFF ON OFF ON OFF ON ON OFF
Student 86 OFF ON OFF ON OFF ON ON
ON
Student 87 OFF ON OFF OFF ON OFF OFF OFF
Student 88 OFF ON OFF OFF ON OFF OFF ON
Student 89 OFF ON OFF OFF ON OFF ON OFF
Student 90 OFF ON OFF OFF ON OFF ON ON
Student 91 OFF ON OFF OFF ON ON OFF OFF
Student 92 OFF ON OFF OFF ON ON OFF ON
Student 93 OFF ON OFF OFF ON ON ON OFF
Student 94 OFF ON OFF OFF ON ON ON ON
Student 95 OFF ON ON OFF OFF OFF OFF OFF
Student 96 OFF ON ON OFF OFF OFF OFF ON
3. Setting up MLA-200s — continued
Students 73 to 96 (MRX7-D ID=4)
Change the IP address specied in step 2-2. to one for an MRX7-D setup.
MLC-200 Installation Guide – 11
4. Setting up MRX7-Ds
For details on Labs greater than 24 students, please contact Yamaha Customer Support at 1-800-292-2982
and when prompted to choose a support department, enter code 44 for assistance and important conguration
downloads.
4-1. Before turning on MRX7-D, set the rotary switch and DIP switch.
Specify the following settings.
MRX7-D ID=1 (instructor and students 1 to 24)
Rotary switch=1, DIP switch=All switches set to OFF (up)
12 – MLC-200 Installation Guide
5. Setting up the audio network
Communications between the instructor and students as well as audio of the performance is sent and received through
the audio network. In the MLC200 Music Laboratory System, Dante has been adopted as the structure of the audio
network. Although software called Dante Controller is normally used to set up a Dante audio network, its high degree of
exibility requires knowledge about audio networks.
Therefore, the dedicated software ML Cong Tool is used in the MLC200 Music Laboratory System to make setup easier.
Download the ML Cong Tool Software here: Yamaha.io/MLCdownloads
5-1. Connect all MLA-200s to Ethernet switches.
The [STATUS] indicator ashes while the device is starting up. The indicator lights up when the device is nished
starting up.
Check that the [STATUS] indicator of all MLA-200s are lit.
Connection diagram showing 8 students.
Kramer to provide new diagram
MLC-200 Installation Guide – 13
5. Setting up the audio network — continued
Connection diagram showing 16 students.
NOTE
• Before making connections, be sure to complete the procedure in “3. Setting up MLA-200s” (Page 6).
The changes to the DIP switch settings are applied when the Ethernet cable is connected and the MLA-200
is turned on. Before changing the settings, unplug the Ethernet cable from the MLA-200.
14 – MLC-200 Installation Guide
5. Setting up the audio network — continued
5-2. Start the ML Config Tool installed onto the Windows computer.
A window appears. Follow on screen steps to set up the Lab System.
5-3. In “The number of MLA-200” box, type the number of MLA-200s connected
Include the MLA-200 for the instructor with the number of devices for Area #1. Area #1 can be set between
5-4. Click the “Confirm” button.
The software automatically checks that the MRX7-Ds and MLA-200s are correctly set up. If they are correctly set
up, “Succeed” appears in the “Output” box on the right side of the window. If this does not appear, return to the
previous steps and check each of the settings.
5-5. Check that “Succeed” appears, and then click the “Apply” button.
This completes the setup of the audio network.
MLC-200 Installation Guide – 15
6. Setting up ML Touch
ML Touch is an iPad application used by instructors to operate the entire system. It can be downloaded
from the App Store.
This describes the setup operations that must be performed before the application can be used.
For details on using ML Touch, refer to the ML Touch User’s Guide.
6-1. Download ML Touch from the App Store.
6-2. Tap the ML Touch icon to start the application.
The initial setup window appears.
Then, if there are no problems, the Home window appears. If an error appears, check the following.
• Are the MLA-200s connected correctly and are there no duplicate Unit IDs?
If an error appeared, the Home window does not appear. Exit ML Touch, and then start it again.
If the iPad is not connected via Wi-Fi make settings in iOS. Refer to Step 7 in the Quick Setup Guide.
This completes the setup of ML Touch.
16 – MLC-200 Installation Guide
7. Connecting optional audio devices
Connect audio devices, such as the instructor’s microphone
or a CD player used for teaching, to the MRX7-D set to ID=1.
7-1. Turn off all devices to be connected.
7-2. Connect the audio devices as shown above.
Use the Euroblock connectors on the MRX7-D to make connections for the microphone input and power
amplier (powered speakers). For details on using the Euroblock connectors, refer to “Euroblock plug
connection” in the MRX7-D Owner’s Manual.
When using multiple MRX7-Ds, connect them via their YDIF ports.
7-3. Turn on the MRX78-D.
When using multiple MRX7-D, turn them on in order, starting with ID=1.
7-4. Turn on the power amplifier (powered speakers).
7-5. Start ML Touch.
7-6. Adjust the volume of the power amplifier.
At this time, adjust the volume to check that the connection has been made.
CD/BD player 1
CD/BD player 2
MRX7-D ID=1
PoE powered
Ethernet switch
Power
amplier
Indoor speaker L Indoor speaker R
NOTE
Use the Euroblock connectors on the
MRX7-D to make the microphone input
and speaker output connections.
MRX7-D ID=2
MLC-200 Installation Guide – 17
7. Connecting optional audio devices — continued / 8. Operation check
If no sound is heard from the speakers, return to the previous steps and perform each one again.
This completes the connection of the audio devices.
8. Operation check
Refer to page 10 of Quick Setup Guide for Testing and Troubleshooting.
18 – MLC-200 Installation Guide
9. Installing onto an instrument (optional)
After performing the operation check, unplug all cables connected to the MLA-200s, and then install the
MLA-200 onto the instrument.
The MLA-200 can be installed in the following two ways:
• Attaching to the instrument with the included mounting screws
• Placing on a at surface of the instrument with the included rubber feet
Installation precautions (attaching to the instrument with included screws)
• Install so that the cables on the side panel face downward
• Install so that there is no interference with headphones or connectors on the instrument
• Install so that the knobs of the MLA-200 and connected cables do not extend past the body of the instrument
• Be careful not to trip over connected cables while performing operations
• Be sure to use the included screws for the installation
• In order to prevent wood parts of the instrument from cracking, install the screws at least 15 mm inside the
edge of the leg or stand of the instrument onto which the MLA-200 is mounted
Installation procedure
9-1. Attach the mounting bracket to the MLA-200.
Use the included mounting screws for installing the product.
Mounting bracket
Mounting bracket
MLC-200 Installation Guide – 19
9. Installing onto an instrument (optional) — continued
9-2. While holding the MLA-200 in the desired position, drill four holes
(for attaching the mounting bracket) into the instrument’s stand (leg).
Drill holes with a depth of 15 mm and diameter of 2.5 mm at the center of the screw holes, positioned at least
15 mm inside the edge of the stand (leg). Be careful not to drill the holes too deep. In addition, be sure to drill all
four holes.
NOTE
If the exterior of the instrument has a polished (mirror) nish,
also countersink the holes to about 6 to 6.5 mm in diameter.
9-3. Drive in the center screw about halfway.
9-4. Hook the guide hole at the center of the mounting bracket onto the
center screw.
6 to 6.5 mm
15 mm
2.5 mm
20 – MLC-200 Installation Guide
9. Installing onto an instrument (optional) — continued
9-5. Install and tighten the other screws.
9-6. Tighten the center screw last.
9-7. Make sure that no screw is loose.
This completes the installation onto the instrument.
Installation examples
Mounted with screws at the top
This is the most common installation method. Use this method when the stand (leg) of the instrument is wide.
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