Laser Drive Inc. 4001-01-0078/78009 Power Supply Repair Service

Professional diagnostic and board-level repair service for this Laser Drive Inc. 4001-01-0078/78009 Power Supply.

Laser Drive Inc. 4001‑01‑0078/78009 is a high‑current industrial AC‑DC power supply used in laser drive systems and other precision equipment. Common failure modes for this class include output voltage sag due to degraded rectifier diodes, overheating of the transformer winding, or failure of the main MOSFETs; these often manifest as intermittent operation or over‑temperature warnings. First‑check diagnostics should verify input mains integrity and proper grounding, inspect the PSU board for burnt components or cracked solder joints, and test output rails with a calibrated multimeter while monitoring temperature on key power devices. Post Comment

Need your Laser Drive Inc. 4001-01-0078/78009 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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