Novastar MRV432 Receiving Card With HUB320 Ports For Fine Pitch LED Screen

The MRV432 is a general receiving card developed by NovaStar. A single MRV432 loads up to 512×512 pixels. Supporting various functions such as pixel level brightness and chroma calibration, quick adjustment of dark or bright lines, 3D, individual Gamma adjustment for RGB, and image rotation in 90° increments, the MRV432 can significantly improve the display effect and user experience.

Products Details

⬤Pixel level brightness and chroma calibration Work with the high-precision calibration system to perform brightness and chroma calibration on each LED to effectively remove brightness differences and chroma differences, enabling high brightness consistency and chroma consistency. ⬤Quick adjustment of dark or bright lines The dark or bright lines caused by splicing of modules or cabinets can be adjusted to improve the visual experience. The adjustment can be easily made and takes effect immediately. ⬤3D function Working with the sending card that supports 3D function, the receiving card supports 3D output. ⬤Individual Gamma adjustment for RGB Working with NovaLCT (V5.2.0 or later) and the sending card that supports this function, the receiving card supports individual adjustment of red Gamma, green Gamma and blue Gamma, which can effectively control image non- uniformity under low grayscale and white balance offset, allowing for a more realistic image. ⬤Image rotation in 90° increments The display image can be set to rotate in multiples of 90° (0°/90°/180°/270°).
All product pictures shown in this document are for illustration purpose only. Actual product may vary.
The MRV432 is a general receiving card developed by NovaStar. A single MRV432 loads up to 512×512 pixels. Supporting various functions such as pixel level brightness and chroma calibration, quick adjustment of dark or bright lines, 3D, individual Gamma adjustment for RGB, and image rotation in 90° increments, the MRV432 can significantly improve the display effect and user experience. The MRV432 uses 8 HUB320 connectors for communication. It supports up to 32 groups of parallel RGB data or 64 groups of serial data. Thanks to its EMC compliant hardware design, the MRV432 has improved electromagnetic compatibility and is suitable for various on-site setups.RoHS, EMC Class A
Indicator Color Status Description
Running indicator Green Flashing once every 1s The receiving card is functioning normally. Ethernet cable connection is normal, and video source input is available.
    Flashing once every 3s Ethernet cable connection is abnormal.
    Flashing 3 times every 0.5s Ethernet cable connection is normal, but no video source input is available.
    Flashing once every 0.2s The receiving card failed to load the program in the application area and is now using the backup program.
    Flashing 8 times every 0.5s A redundancy switchover occurred on the Ethernet port and the loop backup has taken effect.
Power indicator Red Always on The power input is normal.
⬤Mapping function The cabinets can display the receiving card number and Ethernet port information, allowing users to easily obtain the locations and connection topology of receiving cards. ⬤Setting of a pre-stored image in receiving card The image displayed on the screen during startup, or displayed when the Ethernet cable is disconnected or there is no video signal can be customized. ⬤Temperature and voltage monitoring The receiving card temperature and voltage can be monitored without using peripherals. ⬤Cabinet LCD The LCD module of the cabinet can display the temperature, voltage, single run time and total run time of the receiving card. ⬤Bite error detection The Ethernet port communication quality of the receiving card can be monitored and the number of erroneous packets can be recorded to help troubleshoot network communication problems. NovaLCT V5.2.0 or later is required. ⬤Firmware program readback The receiving card firmware program can be read back and saved to the local computer. NovaLCT V5.2.0 or later is required. ⬤Configuration parameter readback The receiving card configuration parameters can be read back and saved to the local computer.⬤Loop backup
Maximum Resolution 512×512@60Hz
Electrical Specifications Input voltage DC 3.8 V to 5.5 V
Rated current 0.5 A
Rated power consumption 2.5 W
Operating Environment Temperature –20°C to +70°C
Humidity 10% RH to 90% RH, non-condensing
Storage Environment Temperature –25°C to +125°C
Humidity 0% RH to 95% RH, non-condensing
Physical Specifications Dimensions 145.7 mm × 91.5 mm × 18.4 mm
Net weight 93.1 g Note: It is the weight of a single receiving card only.
Packing Information Packing specifications Each receiving card is packaged in a blister pack. Each packing box contains 100 receiving cards.
Packing box dimensions 625.0 mm × 180.0 mm × 470.0 mm
The amount of current and power consumption may vary depending on various factors such as product settings, usage, and environment.
Name Color Status Description
PWR Red

Staying on

The power supply is working properly.
SYS Green

Flashing once every 2s

The TB60 is functioning normally.

Flashing once every second

The TB60 is installing the upgrade package.

Flashing once every 0.5s

The TB60 is downloading data from the Internet or copying the upgrade package.
Staying on/off The TB60 is abnormal.
CLOUD Green Staying on The TB60 is connected to the Internet and theconnection is available.
Flashing once every 2s The TB60 is connected to VNNOX and the connection is available.
RUN Green Flashing once every second No video signal
Flashing once every 0.5s The TB60 is functioning normally.
Staying on/off FPGA loading is abnormal.
The board thickness is not greater than 2.0 mm, and the total thickness (board thickness + thickness of components on the top and bottom sides) is not greater than 19.0 mm. Ground connection (GND) is enabled for mounting holes.
JH1–JH8
/ R 1 2 G /
/ B 3 4 GND Ground
/ R 5 6 G /
/ B 7 8 GND Ground
/ R 9 10 G /
/ B 11 12 GND Ground
/ R 13 14 G /
/ B 15 16 GND Ground
Line decoding signal HA 17 18 HB Line decoding signal
Line decoding signal HC 19 20 HD Line decoding signal
Line decoding signal HE 21 22 GND Ground
 The receiving card and sending card form a loop via the main and backup line connections. If a fault occurs at a location of the lines, the screen can still display the image normally. ⬤Dual backup of configuration parameters The receiving card configuration parameters are stored in the application area and factory area of the receiving card at the same time. Users usually use the configuration parameters in the application area. If necessary, users can restore the configuration parameters in the factory area to the application area. ⬤Dual program backup Two copies of firmware program are stored in the application area of the receiving card at the factory to avoid the problem that the receiving card may get stuck abnormally during program update.
JH1–JH5
/ Data 1 2 Data /
/ Data 3 4 GND Ground
/ Data 5 6 Data /
/ Data 7 8 GND Ground
/ Data 9 10 Data /
/ Data 11 12 GND Ground
/ Data 13 14 Data /
/ Data 15 16 GND Ground
Line decoding signal HA 17 18 HB Line decoding signal
Line decoding signal HC 19 20 HD Line decoding signal
Line decoding signal HE 21 22 GND Ground
Shift clock HDCLK 23 24 HLAT Latch signal
Display enable signal HOE 25 26 GND Ground
JH6
/ Data 1 2 Data /
/ Data 3 4 GND Ground
/ Data 5 6 NC /
/ NC 7 8 GND Ground
/ NC 9 10 NC /
/ NC 11 12 GND Ground
/ NC 13 14 NC /
/ NC 15 16 GND Ground
Line decoding signal HA 17 18 HB Line decoding signal
Line decoding signal HC 19 20 HD Line decoding signal
Line decoding signal HE 21 22 GND Ground
Shift clock HDCLK 23 24 HLAT Latch signal
Display enable signal HOE 25 26 GND Ground
Do you have any MOQ limit for led display order? A: No MOQ, 1pc for sample checking is available. What about the lead time? A: Sample needs 15 days, mass production time needs 3-5 weeks depends on the quantities. What is your after-sales service? A: We can provide 100% guarantee for our products. If you have any questions, you will get our reply within 24 hours.  How about your Warranty Term? A: Don’t worry, we have professional after-sale team to solve your any questions after you placed an order. And your exclusive sales engineer will also help you get over any problems. How do you make our business long-term and good relationship? A: 1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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