The Globtek Inc. HeS61‑30 TR9CV5000A00‑H is a triple‑output switching AC‑DC power supply (5 V × 5 A, +12 V × 1.5 A, –12 V × 0.5 A) designed for desktop or open‑frame industrial use. Common failure modes include electrolytic capacitor degradation on the input filtering stage, overheating of MOSFETs in the output stages, and transformer winding insulation breakdown; these often manifest as intermittent shutdowns or excessive heat under load. First‑check diagnostics should verify that the unit receives proper 90–264 VAC input, confirm output voltages with a calibrated multimeter while the supply is powered on, inspect for bulging or leaking capacitors and scorch marks around the MOSFETs, and review any error codes displayed by connected control circuitry.[oss-gpt-20b]