NovaStar MCTRL4K User manual

MCTRL4K
LED Display Controller
User Manual
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Document Version
Release Date
Description
V1.2.0
2022-04-01
Added the function of switching from RGB limited to RGB full.
Added the phase offset function.
V1.1.1
2020-07-18
Optimized the document content and style.
V1.1.0
2019-09-04
Added the 3D function.
Added the low latency function.
Added the function of individual gamma adjustment for RGB.
Added HLG mode.
Added the image settings function.
Added the function of input source bit depth settings on the
control computer.
Added the function of importing custom EDID.
Added support for the 25Hz frame rate.
Added the function of adaptation to decimal frame rates.
Optimized HDR10 performance by adding low grayscale mode
adjustment.
Optimized the Mapping function illustration diagram.
V1.0.0
2019-09-26
First release
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
1 Overview...........................................................................................................................................................................................1
2 Appearance ......................................................................................................................................................................................2
3 Applications ......................................................................................................................................................................................5
4 Cascade Devices.............................................................................................................................................................................6
5 Home Screen ...................................................................................................................................................................................7
6 Menu Operations .............................................................................................................................................................................9
6.1.1 Step 1: Set Input Mode .................................................................................................................................................9
6.1.2 Step 2: Set Input Resolution ........................................................................................................................................10
6.1.3 Step 3: Quickly Configure the Screen.........................................................................................................................13
6.3.1 Advanced Configuration................................................................................................................................................14
6.3.2 Image Offset ...................................................................................................................................................................15
6.5.1 Mapping Function ..........................................................................................................................................................16
6.5.2 Load Cabinet Configuration Files ................................................................................................................................17
6.5.3 Set Alarm Thresholds....................................................................................................................................................18
6.5.4 Save to Hardware ..........................................................................................................................................................18
6.5.5 Redundancy Settings ....................................................................................................................................................18
6.5.6 Factory Reset .................................................................................................................................................................18
6.5.7 HDR .................................................................................................................................................................................18
6.5.8 3D Settings .....................................................................................................................................................................21
6.5.9 Genlock Setting..............................................................................................................................................................26
6.5.10 Hardware Version ........................................................................................................................................................26
7 Operations on PC ............................................................................................................................................................................28
7.4.1 Environment Configuration...........................................................................................................................................32
7.4.2 Operations ......................................................................................................................................................................32
7.5.1 NovaLCT.........................................................................................................................................................................33
7.5.2 SmartLCT........................................................................................................................................................................33
7.6.1 NovaLCT.........................................................................................................................................................................33
7.6.2 SmartLCT........................................................................................................................................................................34
8 Specifications ...................................................................................................................................................................................35
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Introduction
The MCTRL4K is an LED display controller with an ultra-large loading capacity developed by NovaStar. A
single unit features a loading capacity of up to 4096×2160@60Hz. It supports any custom resolutions with a
width or height up to 7680 pixels, meeting the on-site configuration requirements of ultra-long or ultra-wide
LED displays.
The MCTRL4K comes with many industry-leading technologies such as HDR, individual gamma adjustment
for RGB, low latency, 3D, and pixel level brightness and chroma calibration. These technologies improve the
display brightness, grayscale and color performance, presenting more uniform, detailed and vivid images.
The MCTRL4K is stable, reliable and powerful, dedicated to providing users with an ultimate visual experience.
It can be mainly used in the rental and fixed installation applications, such as concerts, live events, security
monitoring, Olympic Games, various sports centers, and much more.
Features
A variety of input connectors
−1x DP 1.2
−1x HDMI 2.0
−2x DL-DVI
16 Neutrik Gigabit Ethernet ports and 4
optical ports
For DP/HDMI input, the maximum loading
capacity is 8,800,000 pixels.
For DVI input, the maximum loading
capacity is 8,300,000 pixels.
The maximum output height or width of a
single MCTRL4K is 7680 pixels.
High bit-depth inputs: 8bit/10bit/12bit
HDR function
HDR10 and HLG are supported.
The MCTRL4K can work with the
receiving cards that support HDR to
greatly enhance the image quality of the
display, presenting more vivid and
detailed images.
3D function
The MCTRL4K can work with the 3D
emitter EMT200 and 3D glasses, allowing
you to experience 3D display effects.
Individual gamma adjustment for RGB
For 10-bit or 12-bit inputs, this function
can individually adjust the red gamma,
green gamma and blue gamma to
effectively control image non-uniformity in
low grayscale conditions and white
balance offset, allowing for a more
realistic image.
RGB limited to RGB full
This function automatically converts the
color range of the input source from RGB
limited to RGB full so as to display natural
black in low grayscale conditions.
Low latency
When low latency and input source sync
are enabled, and cabinets are connected
vertically, the delay between the input
source and receiving card can be reduced
to one frame.
Inputs with decimal frame rates
Adaptive to
23.98/29.97/47.95/59.94/71.93/119.88 Hz
Pixel level brightness and chroma
calibration
The MCTRL4K can work with NovaStar’s
high-precision calibration system to
calibrate the brightness and chroma of
each pixel, effectively removing
brightness differences and chroma
differences, enabling high brightness
consistency and chroma consistency.
Ultra-high resolution input
Supports ultra-high resolution settings
with NVIDIA graphics card.
Screen configuration on web
Cascading of up to 10 MCTRL4K units
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2 

No.
Button/Connector
Description
1
Power button
Power on or off the device.
2
USB
Connect to a USB drive.
3
LCD screen
Display the device status, menus, submenus and messages.
4
Knob
Select menus, adjust parameters, and confirm operations.
5
BACK
Go back to the previous menu or exit the current operation.

Hold down the knob and Back button simultaneously for 5s or longer to lock or unlock the front panel buttons.

Connector Type
Connector Name
Description
Input
DP 1.2
1x DP 1.2
Supported maximum resolution: 4096×2160@60Hz, supported
minimum resolution: 640×480@24Hz
Custom resolutions supported
Maximum width: 7680 pixels (7680×1080@60Hz)
Maximum height: 7680 pixels (1080×7680@60Hz)
HDCP 1.3 compliant
Supported standard resolutions:
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1366×768@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
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1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×2160@(24/25/30/48/50/60/72/75/85/100/120)Hz
2560×1600@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×2160@(24/25/30/48/50/60)Hz
No support for interlaced input sources
HDMI 2.0
1x HDMI 2.0
Supported maximum resolution: 4096×2160@60Hz, supported
minimum resolution: 800×600@30Hz
Custom resolutions supported
Maximum width: 7680 pixels (7680×1080@60Hz)
Maximum height: 7680 pixels (1080×7680@60Hz)
HDCP 1.4 and HDCP 2.2 compliant
Supported standard resolutions:
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×2160@(24/25/30/48/50/60/72/75/85/100/120)Hz
2048×1536@(24/25/30/48/50/60/72/75/85/100/120)Hz
2560×1600@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×2160@(24/25/30/48/50/60)Hz
No support for interlaced input sources
DUAL DVI-D1
DUAL DVI-D2
2x DL-DVI
Each with a maximum resolution of 3840×1080@60Hz and
minimum resolution of 800×600@30Hz
Custom resolutions supported
Maximum width: 3840 pixels (3840×1080@60Hz)
Maximum height: 3840 pixels (800×3840@60Hz)
Supported standard resolutions:
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1366×768@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100)Hz
1920×2160@(24/25/30/48/50/60)Hz
2560×1600@(24/25/30/48/50/60)Hz
3840×1080@(24/25/30/48/50/60)Hz
3840×2160@(24/25/30)Hz
No support for interlaced input sources
Output
1~16
16x Neutrik (NE8FBH) Gigabit Ethernet ports
Maximum capacity of a single port:
For 8-bit input sources: 650,000 pixels
For 10-bit/12-bit input sources: 320,000 pixels
No support for audio output
Support for redundancy between Ethernet ports
OPT1~OPT4
4x 10G optical ports
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OPT1 transmits the data of Ethernet ports 1 to 8.
OPT2 transmits the data of Ethernet ports 9 to 16.
OPT3 is a duplicate channel of OPT1.
OPT4 is a duplicate channel of OPT2.
Control
ETHERNET
Connect to the control computer.
USB IN-OUT
IN: 1x USB 2.0 (Type-B)
Input port for cascading MCTRL4K units, or connecting to a PC for
debugging
OUT: 1x USB 2.0 (Type-A)
Output port for cascading MCTRL4K units
Up to 10 units can be cascaded.
GENLOCK IN-
LOOP
Sync signal connector
Support for Bi-level, Tri-level, and Blackburst
IN: Genlock input connector
LOOP: Genlock loop output connector
Power
AC 100 V~240 V-50/60 Hz

When the input source is HDMI or DP, the 144 Hz forced resolution input from the front end device can
be parsed. In this situation, the loading capacity is reduced by half.
This product can only be placed horizontally. Do not mount vertically or upside-down.
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3 
The MCTRL4K can work in mosaic and multi-card modes, meeting multiple user application needs.

Figure 3-1 Application of mosaic mode
-
Figure 3-2 Application of multi-card mode
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4 
The control computer controls multiple MCTRL4K devices.
Cascade the MCTRL4K devices via their USB IN and USB OUT ports. Up to 10 devices can be cascaded.
Multiple MCTRL4K devices output image simultaneously.
Cascade the MCTRL4K devices via their GENLOCK IN and GENLOCK LOOP connectors. Up to 10
devices can be cascaded.
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5 
After the MCTRL4K is powered on, its home screen appears, as shown in Figure 5-1.
Figure 5-1 Home screen
Area
Description:
A
The access status of inputs:
On: Input available
Off: Input unavailable
The interval between unplugging and plugging the DP input must be greater than 5s. Otherwise,
the DP input cannot be detected.
B
Display the current input information, including input type, resolution and frame rate.
In multi-card mode, both DVI1 and DVI2 have inputs. The information about the two DVI inputs will
be displayed alternately.
C
Display the resolution and frame rate of the currently configured LED display.
D
The supply voltage of the motherboard
The temperature inside the chassis
The LED display brightness
The 3D function is enabled (This icon is not displayed when the function is
disabled).
Genlock is connected (This icon is not displayed when Genlock is not
connected).
Current status of DVI1 and DVI2 inputs:
Not in sync/In sync
/ /
The connection status of control ports:
USB connected/Ethernet connected/Not connected
/
Front panel buttons unlocked/locked
Hold down the knob and BACK button simultaneously for 5s or longer to
lock or unlock the buttons.
After the buttons are locked, all the button operations will not take effect
and appears on the home screen.
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Area
Description:
E
The working status of the Ethernet ports
Always on: The Ethernet port connection works and the port serves as primary.
Off: The Ethernet port is not connected or the connection does not work.
Always on and a mark (not flashing) on top corner of icon: The Ethernet port is in redundancy
status, but the redundancy has not taken effect.
Always on and a mark (flashing) on top corner of icon: The Ethernet port is in redundancy status
and the redundancy has taken effect.
F
OPT1/OPT2: Primary optical ports
OPT1 corresponds to Ethernet ports 1 to 8 and OPT2 corresponds to Ethernet ports 9 to 16. Their
statuses are as below.
Always on: The optical port connection works and the port serves as primary.
Off: The optical port is not connected or the connection does not work.
OPT3/OPT4: Backup optical ports
OPT3 is the backup of OPT1, and OPT4 is the backup of OPT2. Their statuses are as below.
Off: The optical port is not connected or the connection does not work.
Always on: The optical port connection works, but the redundancy has not taken effect.
Always on and a mark on top corner of icon: The optical port connection works and the
redundancy has taken effect.
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6 
The MCTRL4K is powerful and easy to use. You can quickly configure the LED screen to light it up and display
the entire input source following the steps in 6.1 Quick Screen Configuration. With other menu settings, you
can further improve the LED screen display effect.
Quick Screen Configuration
Following the three steps below, namely Set Input Mode > Set Input Resolution > Quickly Configure the
Screen, you can quickly light up the LED screen to display the entire input source.
6.1.1 Step 1: Set Input Mode
The input mode settings include DVI mode, input source, mosaic mode, and limited to full settings.
Figure 6-1 Input mode settings
Step 1 Set the DVI mode. Options include Mosaic and Multi-card.
Step 2 Select an input source. Different DVI modes support different input sources.
In mosaic mode, the input source can be , ,  or .
When the input source is , the device will detect the inputs automatically in the order of DP > HDMI >
DVI.
In multi-card mode, the input sources can be  and .
The MCTRL4K works as two independent sending cards and the loading capacity of each card is up to
3840×1080@60Hz. The images of both DVI 1 and DVI 2 input sources can be displayed on LED display
simultaneously, but they cannot be set at the same time.
Step 3 (Optional) In mosaic mode, set the DVI mosaic mode. The mosaic mode can be Top and Bottom or Side by
Side.
Step 4 Enable Limited to Full for the input source.
The input source color range includes RGB Full and RGB Limited. This function automatically converts the
color range of the input source from RGB Limited to RGB Full, allowing for more accurate video processing.
Disable: Do not convert RGB Limited to RGB Full.
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Enable: Convert RGB Limited to RGB Full. You are advised to enable this function when the input source
has a limited color range.

You can enable the Limited to Full function only when the input source is RGB limited. When the input source
is RGB full, enabling this function will cause grayscale loss.
6.1.2 Step 2: Set Input Resolution
The input resolution can be set through either of the following methods.

Select the target resolution from the standard resolution presets.
Input Source
Available Standard Resolution Presets
DL-DVI
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1366×768@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100)Hz
1920×2160@(24/25/30/48/50/60)Hz
2560×1600@(24/25/30/48/50/60)Hz
3840×1080@(24/25/30/48/50/60)Hz
3840×2160@(24/25/30)Hz
HDMI
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×2160@(24/25/30/48/50/60/72/75/85/100/120)Hz
2048×1536@(24/25/30/48/50/60/72/75/85/100/120)Hz
2560×1600@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×2160@(24/25/30/48/50/60)Hz
DP
1280×1024@(24/25/30/48/50/60/72/75/85/100/120)Hz
1366×768@(24/25/30/48/50/60/72/75/85/100/120)Hz
1440×900@(24/25/30/48/50/60/72/75/85/100/120)Hz
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1600×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×1200@(24/25/30/48/50/60/72/75/85/100/120)Hz
1920×2160@(24/25/30/48/50/60/72/75/85/100/120)Hz
2560×1600@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×1080@(24/25/30/48/50/60/72/75/85/100/120)Hz
3840×2160@(24/25/30/48/50/60)Hz

The MCTRL4K is adaptive to decimal frame rates (23.98/29.97/47.95/59.94/71.93/119.88 Hz).

Customize a resolution by setting a custom width, height and refresh rate.
Step 1 On the home screen, press the knob to enter the main menu screen.
Step 2 Choose Input Settings > Input Resolution > Custom and set the width, height and refresh rate.
Step 3 Select Apply and press the knob to apply the custom resolution.
-
When the input source is DP or HDMI, you can set an ultra-high resolution via the NVIDIA graphics card of the
computer. The width or height is up to 7680 pixels.
Recommended graphics cards: NVIDIA GeForce GTX 970, NVIDIA GeForce GTX 1060, and NVIDIA GeForce
GTX 750 Ti

When the width or height of the output image is greater than 4092 pixels, the resolution must be customized
via the NVIDIA graphics card.
Step 1 Right-click on desktop.
Step 2 Select NVIDIA Control Panel.
Step 3 On the left panel, choose Display > Change resolution. On the right area, select NOVA MCTRL4K.
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Figure 6-2 Changing resolution
Step 4 Under 2. Apply the following settings, click Customize. In the Customize dialog box that appears, click
Create Custom Resolution. In the Create Custom Resolution dialog box that appears, set the parameters.
When you set the timing standard to , use the MCTRL4K Ultra-High Resolution Settings
Generator (Rev 1.1) to calculate the parameters, including active pixels, front porch (pixels), sync width
(pixels), polarity, total pixels and refresh rate. Then enter the parameter values manually. Note that the
pixel clock must not be greater than 595.0 MHz.
When you set the timing standard to , the software will calculate the parameters
automatically and they cannot be changed manually.
Figure 6-3 Creating custom resolution
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Step 5 Click Test. In the displayed dialog box indicating the test is successful, click Yes to save the custom resolution.
Figure 6-4 Applying changes
6.1.3 Step 3: Quickly Configure the Screen
Follow the steps below to complete quick screen configuration.
Step 1 On the home screen, press the knob to enter the main menu.
Step 2 Choose Screen Settings > Quick Config to enter its submenu and set the parameters.
Set  and  (numbers of cabinet rows and columns to be loaded)
according to the actual situation of the screen.
Set  (number of cabinets loaded by Ethernet port 1). The device has restrictions on
the number of cabinets loaded by the Ethernet ports. For details, see Note a).
Set  of the screen. For details, see Note c), d), and e).
Figure 6-5 Quick configuration
Note:
a). If nports are used to load the
screen, the number of cabinets loaded
by each of the first (n–1) ports must be
the same and the integral multiple of
the number of cabinet rows or columns,
and it must be greater than or equal to
the number of cabinets loaded by the
last port.
Example:
If all the 16 Ethernet ports are used to load the screen, the
number of cabinets loaded by ports 1–15 must be the same and
the integral multiple of the number of cabinet rows or columns.
Therefore, you need to set only the number of cabinets loaded
by port 1 according to the actual situation. The number of
cabinets loaded by port 16 must be less than or equal to the
number of cabinets loaded by port 1.
b). For irregular screens, NovaLCT software must be connected to configure the screen.
c). During data flow settings, you can rotate the knob to select a target data flow pattern.
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d). During data flow settings, ensure that the cabinets loaded by each Ethernet port are connected one by
one in the same direction.
e). During data flow settings, ensure that Ethernet port 1 is at the beginning position of the whole physical
connection.
Brightness Adjustment
This function allows you to adjust the LED screen brightness in an eye-friendly way according to the current
ambient brightness. Besides, appropriate screen brightness can extend the service life of the LED screen.
Figure 6-6 Brightness adjustment
Step 1 On the home screen, press the knob to enter the main menu screen.
Step 2 Select Brightness and press the knob to confirm the selection.
Step 3 Rotate the knob to adjust the brightness value. You can see the adjustment result on the LED screen in real
time. Press the knob to apply the brightness you set when you are satisfied with it.
Screen Settings
Configure the LED screen to ensure the screen can display the entire input source normally.
Screen configuration methods include quick and advanced configurations. They have constraints:
The two methods cannot be enabled at the same time.
After the screen is configured in NovaLCT, do not use any of the two methods on the MCTRL4K to
configure the screen again.
6.3.1 Advanced Configuration
Set parameters for each Ethernet port, including number of cabinet rows and columns (
and ), horizontal offset (), vertical offset (), and data flow.
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Figure 6-7 Advanced configuration
Step 1 Choose Screen Settings > Advanced Config and press the knob.
Step 2 In the caution dialog screen, select Yes to enter the advanced configuration screen.
Step 3 Enable Advanced Config, select an Ethernet port, set the parameters for it, and apply the settings.
Step 4 Select the next Ethernet port to continue setting until all the Ethernet ports are set.
6.3.2 Image Offset
After configuring the screen, adjust the horizontal and vertical offsets ( and ) of the overall
display image to ensure it is displayed in the desired position.
Figure 6-8 Image offset
Display Control
Control the display status on the LED screen.
Figure 6-9 Display control
Normal: Display the content of the current input source normally.
Black Out: Make the LED screen go black and do not display the input source. The input source is still
being played in the background.
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Freeze: Make the LED screen always display the frame when frozen. The input source is still being
played in the background.
Test Pattern: Test patterns are used to check the display effect and pixel operating status. There are 8
test patterns, including pure colors and line patterns.
Image Settings: Adjust the contrast, saturation and hue of the output image to improve the display effect.
Parameter
Description
Contrast
Range: 0% to 100%; step: 1%
Saturation
Range: 0% to 100%; step: 1%
Hue
Range: -180 to +180; step: 1

The image settings function is unavailable when the calibration function is enabled.
Advanced Settings
Figure 6-10 Advanced settings
6.5.1 Mapping Function
When this function is enabled, each cabinet of the screen will display the sequence number of the cabinet and
the Ethernet port that loads the cabinet.
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Figure 6-11 Illustration of mapping function
Example: "P:01" stands for the Ethernet port number and "#001" stands for the cabinet number.

The receiving cards used in the system must support the Mapping function.
6.5.2 Load Cabinet Configuration Files
Before you begin: Save the cabinet configuration file (*.rcfgx or *.rcfg) to the local PC.
Note: Configuration files of irregular cabinets are not supported.
Step 1 Run NovaLCT and choose Tools > Controller Cabinet Configuration File Import.
Step 2 On the displayed page, select the currently used Ethernet port, click Add Configuration File to select and
add a cabinet configuration file.
Step 3 Click Save the Change to HW to save the change to the controller.
Figure 6-12 Importing configuration file of controller cabinet
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