The Topcon ALE‑5000 MAIN 4358171011 motherboard is the central control board for a high‑speed industrial edge‑cutting or engraving system, handling motor drives, sensor inputs, and communication with the host controller. Common failure points on this class of boards include burned or cracked capacitors around the power regulation section, damaged traces or solder joints on the motor driver ICs, and degraded connectors to the drive modules. First‑check diagnostics: verify that the board receives the correct 24 V DC supply voltage and ripple levels; inspect all surface‑mount components for visual signs of overheating or corrosion; and review any error codes transmitted via the system’s diagnostic bus (e.g., CAN or Modbus) for indications of driver faults or communication loss.[oss-gpt-20b]