The Dukane 4A3080 is a single‑patient intercom station used in ProCare 2000 nurse‑call systems, featuring a 17‑pin membrane panel, call‑cord jack, and integrated LED indicators for call status and privacy. Common failure points on this model include power supply dropout to the microprocessor board, corrosion or loose connections at the 1/4" call‑cord jack, burnt‑out LEDs, and intermittent or non‑existent call signaling due to a defective control IC. First‑check diagnostics should verify that the station receives proper line voltage (120 VAC), inspect the call‑cord jack for continuity and physical damage, and review any diagnostic LED patterns or error codes displayed on the panel before proceeding to board‑level testing.[oss-gpt-20b]