Hitachi excavator 4631129 computer board; Small board ICF

It is the main electronic component of the walking control system, engine control, and overall electronic control system (ICF). Specially designed for precise matching of medium and large-sized excavators such as ZX110-3, ZX120-3, ZX130-3, ZX200-3, ZX210-3, ZX240-3, ZX330-3, ZX450, etc. It is the brain of walking motor speed feedback, sensor signal acquisition, engine idle control, fault diagnosis, and overall electronic control system. Using high-strength FR4 circuit boards, precision sensor interfaces, power drive chips, and voltage resistant electronic components, the signal transmission is stable, the anti-interference ability is strong, and it is perfectly compatible with Hitachi's original electronic control protocol. Perfectly solves common faults such as walking weakness, abnormal oil and water temperature, work lag, sensor failure, unstable walking motor, stalling, and idle fluctuation.