Nagano Japan Radio Co. LB-16 III (NJVA-352) high voltage power supply Repair Service

Professional diagnostic and board-level repair service for this Nagano Japan Radio Co. LB-16 III (NJVA-352) high voltage power supply.

The Nagano Japan Radio Co. LB‑16 III (NJVA‑352) is a high‑voltage industrial power supply designed to deliver regulated output to motor drives or control panels. Common failure modes in this class include tripped thermal fuses, degraded rectifier diodes, and insulation breakdown of the HV transformer windings; look for signs of overheating or visible arcing on the board. Begin diagnostics by verifying that the input mains is within spec and that the main power fuse remains intact, then measure the output voltage under no‑load to confirm regulation, followed by a continuity test of the rectifier bridge and inspection of the HV transformer for loose connections or burn marks. Post Comment

Need your Nagano Japan Radio Co. LB-16 III (NJVA-352) high voltage power supply repaired?

Ship your unit to our North Carolina repair shop for component-level diagnostics and a repair estimate. We service industrial control electronics and power systems nationwide.

• ⚙️ Board-level diagnostics – Troubleshooting beyond simple module replacement
• 🔁 Clear approval process – No repair begins without your approval
• 🧰 Expert Technicians – Decades of board-level experience
• ✅ 1-Year Warranty – Included with completed repairs

Start a Repair Request   Call 1-336-969-0110

Nationwide service • Industrial-grade testing • 1-year warranty on completed repairs

Owner-Operated • Practical Pricing • 1-Year Warranty • Nationwide Service

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