NovaStar DH436 LED Receiving Card

What is the NovaStar DH436 receiving card?

The NovaStar DH436 is a small-pitch LED receiving card for cabinets built around six HUB320 26-pin module connectors. It receives the controller’s assigned image data and sends it to the modules inside that cabinet. It is a sensible order when the cabinet already has a DH436 or its six-connector layout and saved configuration have been confirmed.

It should not be selected simply because another card is also rated 512 × 384. A cabinet can light up with the wrong receiving card yet show a scrambled module order, missing areas or an image that does not match the rest of the wall. For a replacement, match the full DH436 label, the six HUB320 ribbon locations, the module data type and the cabinet file before ordering.

For a new small-pitch cabinet, the DH436 is appropriate only when the cabinet maker confirms its six-HUB320 arrangement, driver IC and 24-group parallel data path. That is the difference between a clean one-card design and a board that needs to be changed after the modules are wired.

DH436 key features

A six-HUB320 layout for the cabinet it matches

The DH436 has six HUB320 connectors, not HUB75E outputs. That distinction tells an installer which module ribbons and cabinet board layout the card expects. When replacing an existing DH436, a confirmed like-for-like layout avoids turning a simple card swap into a rewiring job.

A smoother result on a fine-pitch wall

Brightness calibration, quick dark- or bright-line adjustment and independent RGB gamma adjustment address the faults that are easy to see at close viewing distance: a seam between cabinets, uneven low gray or a white balance shift after a module repair. They require compatible hardware, the right cabinet data and, for individual RGB gamma, a supported sending controller with NovaLCT V5.2.0 or later.

Faster fault isolation without changing good parts

Mapping can identify the card and Ethernet port on a cabinet. Temperature, voltage and bit-error checks can then help separate a cabinet fault from a cable or power problem. That is useful when one panel looks wrong in a large wall and an unnecessary module replacement would create a second problem.

Backup only where the screen was designed for it

The DH436 supports loop backup when the sending device and cabinet run have main and backup Ethernet paths. It also has dual program and configuration backup. These features protect a compatible installation; they do not make an existing single-path cable run redundant just because a new card is installed.

NovaStar DH436 specifications

The specification table identifies this board, but the driver-IC condition changes the real one-card limit. Read the capacity section with the exact module electronics before treating the headline number as an order quantity.

DH436 loading capacity for PWM and common driver ICs

The number most often quoted for DH436 is 512 × 384 at 60 Hz, but it applies to PWM driver ICs and requires NovaLCT V5.3.0 or later. A cabinet with common driver ICs is limited to 384 × 256 at 60 Hz. That is not a small footnote: it can decide whether one card is enough or whether the cabinet needs a second card or different electronics.

The card’s 24 parallel-RGB-group ceiling is a second check. Two cabinets with the same total pixels may need different cards because their module data paths are different. If the cabinet is near the limit, confirm its scan, driver IC and configuration before buying.

DH436 HUB320 connectors and small-pitch cabinet fit

DH436 uses six HUB320 26-pin connectors. The connector type, ribbon locations and output order tell the modules which part of the image to display, so they are part of the purchase decision, not background engineering detail. A card can fit in the cabinet shell and still be wrong for the cabinet behind the modules.

Before ordering a spare, compare the DH436 label, all six connector positions, module ribbon order, board dimensions and power connection. If the old card cannot be read, keep clear cabinet-interior photos and the saved configuration file. Those two pieces of evidence are far more useful than selecting a replacement by pixel capacity alone.

Replacing a DH436 receiving card without changing the picture

Before removing a working DH436, use NovaLCT to save the receiving-card program and cabinet configuration parameters. The program tells the card how to work with the module electronics. The cabinet parameters hold the scan, wiring and pixel map. Keep both because one cannot replace the other.

Then confirm the six HUB320 ribbons and test the saved configuration on one cabinet before applying it across the wall. This avoids a common replacement failure: the cabinet powers on, but the image is scrambled, the brightness changes or the modules no longer line up with the rest of the screen.

If you are servicing an installed DH436 cabinet and those details match, order the same model. If you are changing the cabinet’s module type or load, choose another card only after its connector layout, loading condition and configuration path have been checked together.

DH436 firmware and NovaLCT resources

A direct DH436 PDF is not currently listed in our public download library, so this section does not send you to an unverified datasheet link. For a real replacement, start by saving the working program and cabinet parameters in NovaLCT. Firmware must match the DH436 board and module chips; a newer package is not automatically safer for a working screen.

NovaStar DH436 FAQ