Gepruft SL-L2/4 INCH Circuit Board

Gepruft SL‑L2/4 is a compact PLC/control PC board rated at 15–24 VDC with four built‑in relays used in machine control applications. Common failure modes include burnt or corroded relay contacts, dead MOSFETs on the power stage, and solder joint fatigue around the VCC and I/O pins. First‑check diagnostics: verify the input supply voltage and polarity; test each relay coil for continuity and proper actuation; visually inspect the board for burn marks, cracked traces, or loose components before proceeding to deeper IC testing.[oss-gpt-20b]

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