Video
LED Receiving Card
01 — Definition
The small circuit board mounted on each LED cabinet that takes data from the processor and drives the module rows. Each card handles a fixed pixel count and refresh capability, and the processor has to be configured with the exact card model and firmware. A mismatched or failed receiving card gives itself away as a dead cabinet, wrong colours, or a section running at a different refresh rate.
02 — In the field
One LED cabinet dark or off-colour while its neighbours are fine? Suspect the receiving card or its data-in cable first. Carry spare cards of the exact model: they are not cross-compatible from one panel generation to the next.