PAT DS 350GW is a digital load‑moment indicator console used on crane and boom applications, featuring a four‑row alphanumeric display and foil keypad mounted to the operator’s panel. Common failure points for this class include keypad backlight or key matrix degradation, display driver IC faults, and power supply regulator failures that cause intermittent or blank screens; motor drive or sensor wiring can also trigger error codes. First‑check diagnostics: verify 24 VDC supply continuity to the console board, inspect the keypad and display connectors for corrosion or loose contacts, and review the on‑board diagnostic LEDs or error logs for specific fault codes before proceeding to component replacement.[oss-gpt-20b]