How to Repair BN44-01264A Samsung Power Supply: Step-by-Step Guide

If your Samsung TV isn’t powering on, the BN44-01264A power supply board could be the issue. This guide explains the common failure points, replacement parts, and step-by-step repair tips.

Common Components That Fail on BN44-01264A

  • QP801CS MOSFET – Original part: GP47S60YERD. Recommended upgrade: IPW60R041P6 (Infineon) for better current handling and durability.
  • QP802CS MOSFET – Often fails alongside QP801CS. Check for burn marks or damage.
  • NT801S Thermistor – Monitors temperature; a faulty thermistor can cause startup problems.

Tip: Inspect surrounding components for heat stress to prevent repeated failures.

Step-by-Step BN44-01264A Repair

  1. Power Off and Unplug – Always disconnect the TV before starting.
  2. Discharge the Board – Prevent electric shock by discharging capacitors.
  3. Inspect MOSFETs QP801CS & QP802CS – Look for burns or swelling.
  4. Replace the Thermistor NT801S – Check for high resistance or damage.
  5. Install Replacement MOSFETs – Use IPW60R041P6 for QP801CS, and QP802CS for improved reliability.
  6. Test the Board – Confirm proper operation before reassembly.

Why IPW60R041P6 Is the Best Replacement

  • Handles higher current than the original GP47S60YERD
  • Lower RDS(on) = less heat = higher efficiency
  • Reduces the risk of future MOSFET failure

Where to Buy BN44-01264A Power Supply

Save time and replace your failing board with a tested, upgraded BN44-01264A Samsung Power Supply to keep your TV running like new.

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