Colorlight K8 receiving card for fine-pitch LED screens
The Colorlight K8 is a compact receiving card for fine-pitch fixed installations and rental cabinets. The specification lists a maximum control area of 512 × 384 pixels, high-density connectors and 32 parallel RGB data groups. Loading changes when certain features or higher frame rates are enabled.
Calibration, grayscale and cabinet service
K8 supports 8-bit and 10-bit video, HDR, independent gamma adjustment and up to 14-bit brightness and chromaticity calibration. Infi-bit processing and grayscale refinement address low-gray display adjustment; grayscale refinement uses a luminance meter to measure the screen.
Cabinet highlighting, OSD, seam correction, image rotation and a pre-stored picture assist setup and service. Firmware can be upgraded without a power restart. Loop redundancy, dual-card hot backup and backup of firmware, configuration and calibration data provide options for a system designed with redundancy.
Technical parameters
| Parameter | Specification |
|---|---|
| Maximum control area | 512 × 384 pixels; feature-dependent loading |
| Supported driver type | PWM chips |
| Scan support | Up to 1/128 scan |
| Video input / output | Up to 10-bit; 8-bit and 10-bit sources documented |
| Parallel data groups | 32 RGB groups |
| Serial data groups | Overview lists 64; detailed table and multiplexed pin section list 128 — confirm the required implementation |
| Calibration | Up to 14-bit brightness and chromaticity accuracy |
| Interface | High-density JH1/JH2 connectors |
| Network transmission | 1 Gb/s; recommended CAT5e cable length ≤100 m |
| Dimensions (L × W × H) | 70.0 × 45.0 × 7.8 mm |
| Net weight | 29 g |
| Power input | DC 3.8–5.5 V, 0.5 A |
| Rated power | 2.5 W |
| Operating conditions | −25 to 75°C; 0–80% RH, non-condensing |
Configuration notes: The PDF specifies a maximum 10-bit video path; calibration precision is a separate value. Its serial-data overview and detailed table differ, so confirm the serial group configuration for the selected HUB board and firmware. Cabinet humidity, power, fan and related monitoring functions require supporting cabinet design or peripherals.
Frequently asked questions
What is the maximum loading area of Colorlight K8?
The specification lists 512 × 384 pixels. Some enabled features and high frame rates affect loading, so confirm the final cabinet mapping with the required settings.
Does K8 support 12-bit video input?
The linked K8 specification states 8-bit/10-bit sources and a maximum 10-bit video input/output path. Its 14-bit calibration accuracy is a separate specification and does not establish 12-bit video input.
How many serial data groups does K8 support?
The PDF overview states 64 serial groups, while the detailed table and pin section list 128 using multiplexed data signals. Confirm the required wiring and firmware configuration rather than assuming those figures are interchangeable.
How does K8 receiving-card hot backup work?
Two receiving cards connect to a suitable HUB board to control one cabinet. If the primary card fails, the backup card takes over. The installation must be designed and configured for that arrangement.
Are all K8 cabinet monitoring functions available without extra hardware?
No. Cabinet humidity, power-supply monitoring and fan control depend on supporting cabinet design or peripherals. Check the monitoring connections and modules for the specific cabinet.

Download Specification:
Colorlight K8 LED Display Screen Receiving Card Specification





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