Kystar G628 for HUB320 LED module control
The Kystar G628 is a receiving card for an LED display control system. It receives display data and converts it into module-control signals, using eight HUB320 interfaces and 32 RGB data groups. The model-specific v2.2 document describes image adjustment, calibration and maintenance functions for cabinet setup and service.
G628 belongs at the receiving side of the display. A compatible sending controller, video source and correctly configured module wiring are still required. Select the card by its interface definitions, driver chip, scan mode and board revision.
Verified G628 specifications
| Specification | Details |
|---|---|
| Module interfaces | 8 HUB320 interfaces |
| RGB data groups | 32 |
| Driver categories | Common driver chips, PWM chips and dual-latch chips; confirm exact IC support |
| Calibration | Point-by-point brightness and chromaticity correction; low-grayscale compensation |
| Image adjustment | Color reproduction, frequency-doubling and low-brightness grayscale functions |
| Configuration maintenance | Readback of configuration information and repair workflow |
| Diagnostics | Network communication status and cable connection-sequence detection |
| Creative layouts | Irregular-screen point mapping |
| Firmware protection | Program write protection |
| Electrical reference | DC 3.5–6V; rated current 0.6–1.0A |
| Pixel load | Confirm for the exact revision and module configuration; the retained v2.2 document does not state a numeric maximum |
Image tuning and service benefits
- Pixel calibration: apply supported brightness and chromaticity correction to the configured LED modules.
- Low-grayscale adjustment: use the documented compensation and image-tuning tools for the applicable driver configuration.
- Configuration recovery: read back settings and use the supported repair process when servicing a cabinet.
- Network diagnostics: inspect communication status and cable sequence when checking screen wiring.
- Irregular layouts: use supported point mapping for non-rectangular screen arrangements.
Capacity and interface checks before replacement
The retained G628 specification lists eight interfaces and 32 data groups but does not provide a numeric maximum pixel load. Do not infer a guaranteed load from the interface count, a later series specification or the similarly named G628C. Confirm the exact card revision, driver IC, scan ratio, refresh requirement and firmware when sizing the cabinet.
HUB320 is an interface requirement, not a guarantee that every module pinout or cable is compatible. Compare the module and receiving-card definitions before connecting them. The sending controller’s per-output limit and total pixel capacity also constrain the complete display network.
Color reproduction and frequency-doubling functions require appropriate display settings. Camera shutter settings and module behavior affect recorded images, so scan-line-free photography is not guaranteed for every configuration. Program write protection does not replace a stable power supply or the correct firmware-update procedure.
For the sending stage, review a suitable controller such as the Kystar S10, then verify compatibility for the actual G628 revision and receiving-card chain.
Frequently asked questions
How many interfaces does G628 have?
The card is documented with eight HUB320 interfaces and 32 RGB data groups.
Is G628 interchangeable with G628C?
Do not assume interchangeability. Check the exact model marking, revision, interface definition and supported module configuration.
What information is needed to confirm the pixel load?
Provide the board revision, module dimensions, driver IC, scan ratio and target refresh settings. Use the matching manufacturer specification and configuration rather than a neighboring model’s maximum.
Conclusion
G628 offers eight HUB320 interfaces, pixel calibration and maintenance tools for a compatible LED cabinet. Confirm the exact revision and module configuration before selecting its load or replacing an existing receiver. Refer to the official Kystar Gx receiving-card series and the preserved exact-model specification below.
Download Specification:
Kystar G628 LED Display Screen Receiver Card Specification
