The Daktronics OP‑1192‑0214 PC‑173193 is an industrial LED indicator board used to display status information in scoreboard and control‑console applications. Common failure modes for this model include burned or dim LEDs due to overcurrent, power‑supply voltage drops from aging capacitors, and intermittent communication with the host controller caused by loose or corroded I/O connectors. Begin diagnostics by verifying that the board receives its rated supply voltage (typically 12 V DC) and checking for ripple or spikes; next inspect all LEDs for uniform brightness and replace any visibly dim or dead units; finally test the serial/USB interface for proper handshake and error codes, ensuring the host firmware is up to date.[oss-gpt-20b]