The 0A‑1166‑0001 is a Daktronics All Sport 4000 wired controller used as the main console for scoreboard and play/shot clock systems, powered from 120 VAC with a powder‑coated aluminum enclosure. Common failure points in this class of controllers include power supply board degradation (overheating capacitors or rectifier diodes), firmware corruption on the internal flash memory, and loose or corroded I/O connectors that interrupt data lines to displays and remote devices. First‑check diagnostics: verify 120 VAC input voltage and continuity through the main power supply; inspect all ribbon cable connections for signs of wear or corrosion; and read any diagnostic LEDs or error codes displayed on the console’s front panel before proceeding with component testing or firmware reflash.[oss-gpt-20b]