The Toshiba M230424 DVPC04G008 is a valve interface PCB used in industrial process control systems to translate sensor signals into drive commands for solenoid valves. Common failure modes on this class of board include damaged I/O traces or pads, failed MOSFETs/relays that handle valve actuation, and corrosion or solder joint fatigue on the power supply section. First‑check diagnostics should verify the 24 VDC input rail with a multimeter, inspect all component leads for visible cracks or burn marks, and test each I/O channel against the expected logic levels using an oscilloscope or logic probe. If the board passes these checks, review any error logs from the host controller for communication faults that may indicate a firmware or interface pin mismatch.[oss-gpt-20b]