Change History
| Document Version | Release Date | Description |
|---|---|---|
| V1.0.2 | 2025-08-05 | Removed dual backup of configuration parameters from product features. |
| V1.0.1 | 2025-03-26 | Added certification information. |
| V1.0.0 | 2025-03-12 | First release. |
Introduction
The MRV208-N is a general receiving card developed by NovaStar Tech Co., Ltd. (hereinafter referred to as NovaStar). It supports various functions such as Color Management, 18bit+, Pixel Level Brightness and Chroma Calibration, Quick Adjustment of Dark or Bright Lines, Multi-batch Adjustment, Low Latency, 3D, Individual Gamma Adjustment for RGB, and 90° Image Rotation, significantly improving the display effect and user experience.
The MRV208-N uses 8 standard HUB75E connectors for high stability communication and supports up to 16 groups of parallel RGB data.
- For PWM driver ICs, the maximum load capacity per board when used with M3 controllers is:
- 512×512@60Hz (For 8bit video sources)
- 512×256@60Hz (For 10bit video sources)
- For common driver ICs, the maximum load capacity per board when used with M3 controllers is:
- 512×384@60Hz (For 8bit video sources)
- 512×192@60Hz (For 10bit video sources)
Certifications
RoHS, EMC Class A
If the product does not have the relevant certifications required by the countries or regions where it is to be sold, please contact NovaStar to confirm or address the problem. Otherwise, the customer shall be responsible for the legal risks caused or NovaStar has the right to claim compensation.
Features
Improvements to Display Effect
- Color Management: Supports standard (Rec.709 / DCI-P3 / Rec.2020) and custom color gamuts, enabling more precise colors on the screen.
- 18bit+: Improves LED display grayscale by 4 times to avoid grayscale loss due to low brightness and allow for a smoother image.
- Pixel Level Brightness and Chroma Calibration: Works with NovaStar's calibration system to calibrate the brightness and chroma of each pixel, effectively eliminating differences and enabling high consistency for both brightness and chroma.
- Quick Adjustment of Dark or Bright Lines: Corrects different brightness of seams caused by splicing of modules or cabinets to improve visual experience. The correction is easy and takes effect immediately.
- Multi-batch Adjustment: Adjusts the brightness of cabinets or modules to minimize display discrepancies caused by variations in production batches.
- Low Latency: Reduces the latency of video source on the receiving card end to 1 frame (only when using modules with driver IC with built-in RAM).
- 3D: Works with controllers supporting 3D function to enable 3D output.
- Individual Gamma Adjustment for RGB: Working with NovaLCT and compatible controllers, the receiving card supports individual adjustment to red, green, and blue gamma, effectively controlling image non-uniformity at low grayscale conditions and white balance offset for a more realistic image.
- 90° Image Rotation: The display image can be rotated in multiples of 90° (0°/90°/180°/270°).
Improvements to Maintainability
- Calibration Coefficient Management: Calibration coefficients can be uploaded, read back, saved to hardware, and erased.
- Uploading Calibration Coefficients: Uploads calibration coefficients to the receiving card quickly or in a stable manner, with acceleration support if needed.
- Data Group Mapping: Displays the test pattern by data group to clearly show the position of each data group within the cabinet.
- Mapping 1.1: The cabinet displays the Ethernet port, receiving card, and controller numbers in different colors, clearly showing the physical locations and connection topology of receiving cards.
- Settings of a Stored Image in the Receiving Card: The image displayed during startup, or 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 external devices.
- Cabinet LCD: The LCD module of the cabinet can display the temperature, voltage, single run time, and total run time of the receiving card.
- Bit Error Detection: Real-time monitoring of the communication of the Ethernet port on the receiving card helps users troubleshoot network communication problems.
- Firmware Program Readback: The receiving card firmware program can be read back and saved to the local computer.
- Configuration Parameter Readback: The receiving card configuration parameters can be read back and saved to the local computer.
Improvements to Reliability
- Loop Backup: The receiving card and controller form a loop via primary and backup line connections. When a fault occurs, the screen can still display the image normally.
- Dual Program Backup: Two copies of firmware program are stored in the receiving card at the factory to avoid issues during program updates.
Appearance
All product pictures shown in this document are for illustration purpose only. Actual product may vary.
Component Descriptions
| Name | Description |
|---|---|
| HUB75E Connectors | Connect to the module. |
| Power Connector | Connect to the input power. Either of the connectors can be chosen. |
| Gigabit Ethernet Ports | Connect to the sending card, and cascade other receiving cards. Each connector can be used as input or output. |
| Self-Test Button | Set the test pattern. After the Ethernet cable is disconnected, press the button twice, and the test pattern will be displayed on the screen. Press the button again to switch the pattern. |
| 5-Pin LCD Connector | Connect to the LCD. |
Indicator
| Indicators | 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 video source input is unavailable. | ||
| 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. |
Dimensions
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 20.0 mm.
Net weight: 70.2 g (Note: This is the weight of a single receiving card only).
Packaging Information: Each receiving card is packaged in a blister pack. Each packing box contains 100 receiving cards. Packing box dimensions: 630.0 mm × 475.0 mm × 195.0 mm.
Physical Diagram and Pin Definitions
The diagram shows the top and bottom views of the MRV208-N receiving card, including dimensions with tolerances (±0.3 mm) for mounting holes and overall size. Key connector locations like HUB75E, Power Connector, and Gigabit Ethernet Port are indicated. A side view shows thickness measurements. To make molds or trepan mounting holes, please contact NovaStar for a higher-precision structural drawing.
Pin Definitions (JH1 as an example)
| 1 | 2 | G1 | / | ||
|---|---|---|---|---|---|
| / | R1 | 3 | 4 | GND | Ground |
| / | B1 | 5 | 6 | G2 | / |
| / | B2 | 7 | 8 | HE1 | Line decoding signal |
| Line decoding signal | HA1 | 9 | 10 | HB1 | |
| HC1 | 11 | 12 | HD1 | ||
| Shift clock | HDCLK1 | 13 | 14 | HLAT1 | Latch signal |
| Display enable signal | HOE1 | 15 | 16 | GND | Ground |
Specifications
Maximum Resolution
- For PWM driver ICs, the maximum load capacity per board when used with M3 controllers is:
- 512×512@60Hz (For 8bit video sources)
- 512×256@60Hz (For 10bit video sources)
- For common driver ICs, the maximum load capacity per board when used with M3 controllers is:
- 512×384@60Hz (For 8bit video sources)
- 512×192@60Hz (For 10bit video sources)
Electrical Parameters
| Parameter | Value |
|---|---|
| Input voltage | DC 3.8 V to 5.5 V |
| Rated current | 0.5 A |
| Rated power consumption | 2.5 W |
Operating Environment
| Parameter | Value |
|---|---|
| Temperature | -20°C to +70°C |
| Humidity | 10% RH to 90% RH, non-condensing |
Storage Environment
| Parameter | Value |
|---|---|
| Temperature | -40°C to +85°C |
| Humidity | 0% RH to 95% RH, non-condensing |
Physical Specifications
| Parameter | Value |
|---|---|
| Dimensions | 95.3 mm × 109.4 mm × 19.3 mm |
| Net weight | 70.2 g |
Notes
The amount of current and power consumption may vary depending on various factors such as product settings, usage, and environment.
Copyright
Copyright © 2025 Xi'an NovaStar Tech Co., Ltd. All Rights Reserved.
No part of this document may be copied, reproduced, extracted or transmitted in any form or by any means without the prior written consent of Xi'an NovaStar Tech Co., Ltd.
Trademark: NOVA STAR is a trademark of Xi'an NovaStar Tech Co., Ltd.
Statement: Thank you for choosing NovaStar's product. This document is intended to help you understand and use the product. For accuracy and reliability, NovaStar may make improvements and/or changes to this document at any time and without notice. If you experience any problems in use or have any suggestions, please contact us via the contact information given in this document. We will do our best to solve any issues, as well as evaluate and implement any suggestions.
Official website: www.novastar.tech
Technical support: support@novastar.tech
