NovaStar MRV300-1 LED Receiving Card | Legacy Specifications
$ 20.00
Discontinued and no longer available. The NovaStar MRV300-1 is the top-mounted male-connector variant of the MRV300 receiving-card family. The page below retains legacy technical information and identifies differences between the older listing and Rev2.1.1 documentation.
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MRV300-1 legacy LED receiving card
The MRV300-1 has been discontinued and is no longer available. It is an LED display receiving card with male connectors on top of the board. MRV300 family Rev2.1.1 documentation identifies this suffix as the standard model.
| Parameter | Specification |
|---|---|
| Output interfaces | 2 × 50-pin |
| RGBR′ parallel data | 16 groups |
| RGB parallel data | 20 groups |
| Serial data | 64 groups |
| Single-card resolution in Rev2.1.1 | 256 × 226 pixels |
| Connector variant | MRV300-1: male connectors on top |
| Rated voltage | 3.3 V minimum; 5.0 V typical; 5.5 V maximum |
| Rated current | 0.33 A minimum; 0.50 A typical; 0.55 A maximum |
| Operating temperature | −20 to +70 °C |
| Operating humidity | 10%–90% |
| Board / overall thickness | Approximately 1.6 mm / 18.5 mm |
| Compliance listed | EU RoHS; CE-EMC |
Older listing values and revision differences
The earlier listing stated 256 × 128 and 200 × 200 resolutions, 16 RGBR′ groups expandable to 32, and 64 serial groups expandable to 128. The manufacturer’s Rev2.1.1 document instead lists 256 × 226 pixels and the standard 16/20/64-group output modes shown above. It does not confirm the older expansion claims. Keep these source statements separate and check the installed hardware and firmware before selecting a configuration.
Calibration, monitoring and model identification
Configuration-file readback, temperature monitoring, supply-voltage detection and Ethernet communication-status detection are documented. The card supports pixel-by-pixel brightness and chromaticity correction and a pre-stored picture. The earlier listing also describes program copy, high grayscale at low brightness and high-refresh operation, without numerical refresh limits.
MRV300-2 uses male connectors underneath; MRV300-3 uses female connectors on top; MRV300-4 uses female connectors underneath. Confirm the complete suffix and the ribbon-cable arrangement when identifying a board.
Product images
Original specification download
NOVASTAR MRV300-1 LED Display Control system Card Specification(Chinese)
The original Chinese specification link is retained, but it was unavailable when checked. The revision-labelled table on this page uses the MRV300 Rev2.1.1 manufacturer document.
Frequently Asked Questions
Is the MRV300-1 still available?
No. This listing identifies the MRV300-1 as discontinued and no longer available. The page retains information for existing installations.
How can I identify the MRV300-1 connector variant?
MRV300-1 has male connectors on top. The -2 variant has male connectors underneath, -3 has female connectors on top, and -4 has female connectors underneath.
Why are different MRV300-1 resolutions listed?
The older listing states 256 × 128 and 200 × 200, while the manufacturer’s Rev2.1.1 document states 256 × 226. They are separate source statements; verify the installed board and its configuration instead of combining these values into one specification.
Can I expand MRV300-1 output to 32 RGBR′ or 128 serial groups?
Those expansion claims appeared in the older listing, but are not confirmed in the Rev2.1.1 specification used here. Its documented modes are 16 RGBR′ groups, 20 RGB groups and 64 serial groups. Verify the required hardware and firmware before planning an expanded configuration.
What information can help with servicing an existing MRV300-1?
Record the full model suffix, connector layout, module driver IC, scan settings and wiring. The card supports configuration-file readback and monitoring of temperature, supply voltage and Ethernet communication status.
| Weight | 0.35 kg |
|---|
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