Pioneer Magetics PM 2973A-3-4 114650 Power Supply
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Pioneer Magnetics PM 2973A‑3‑4 is a high‑current 5 V DC switch‑mode power supply rated at 95 A, commonly used to drive industrial control boards and servo drives. Known failure modes include capacitor electrolyte leakage or cracking, output voltage sag due to degraded MOSFETs or inductors, and thermal shutdown from overheating or poor ventilation. Initial checks should verify the input AC voltage and phase balance, measure the regulated 5 V rail against spec, inspect for bulging or leaking electrolytic capacitors, and confirm that all fuses and protection diodes are intact before proceeding to component‑level diagnostics.[oss-gpt-20b] |
Need your Pioneer Magetics repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
- ⚙️ Fast Diagnostics – Same-day evaluation available
- 🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
- 🧰 Expert Technicians – Decades of board-level experience
- ✅ 1-Year Warranty – Every repair fully guaranteed
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
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- ✅ 1-Year warranty on completed repairs
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
Other Repaired Units by Pioneer Magetics
Pioneer Magetics PM 2973A-3-4 114650 Power SupplyContact Us
🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.