Identify the control platform
Record the sending device and receiver model numbers together with the configuration software and firmware references. A receiver should be chosen within a compatible ecosystem.

Calculate the actual loading
Confirm cabinet resolution, the number of cabinets assigned to each port and the resulting pixel load. Keep the approved port map with the installation record.

Check the HUB interface
Compare the receiver output and HUB-board pin mapping. Document cable direction and connector orientation before disassembly.

Protect configuration data
Where available, back up mapping and calibration files before a replacement. Test one cabinet and verify the display pattern before extending the change across the screen.

