Samsung bn81-27374b Power Supply Board Smps

Product Description

The SAMSUNG bn81-27374b is a switching mode power supply (SMPS) board designed as a direct replacement for failed or defective power supply units in compatible Samsung flat-panel televisions. The board delivers regulated DC voltage to the main board, panel, and backlight circuits, restoring full electrical function to the display. This component is identified internally by the related assembly reference L43S7A_FVD and cross-references to part number BN44-01336B. Installation is performed by qualified consumer electronics technicians or experienced TV repair professionals.

This SMPS board is suited for flat-panel television repair applications where the original power supply has failed due to blown fuses, faulty capacitors, or other common power-stage failures. The board is an OEM-style replacement intended for use in Samsung televisions that originally shipped with the BN44-01336B power supply assembly. Technicians working on Samsung display units should verify the exact model number and revision of the set before ordering to confirm fitment.

Key Features

• Switching mode power supply (SMPS) design provides regulated voltage to display subsystems
• Cross-references to Samsung assembly BN44-01336B for identification and ordering purposes
• OEM-style replacement restores factory electrical performance
• Designed for L43S7A_FVD platform Samsung television assemblies
• Supports AC input to DC output conversion for panel and backlight circuits

Compatibility

This board cross-references to Samsung power supply assembly BN44-01336B and is associated with the L43S7A_FVD internal platform designation. Verify your television model number and existing power supply part number before installation to confirm fitment.

Installation Notes

Power supply board replacement should be performed by a qualified electronics technician. Disconnect the television from AC mains power and allow capacitors to discharge fully before opening the cabinet. Use proper ESD precautions when handling the board, and ensure all ribbon cables and connectors are fully seated before reassembly. Do not power on the unit with the cabinet open or with any connectors left disconnected.

Technical Specifications

• Component Type: Switching Mode Power Supply (SMPS) Board
• Cross-Reference Part Number: BN44-01336B
• Platform Reference: L43S7A_FVD

Standard Information

• Brand: SAMSUNG
• Manufacturer Part Number: bn81-27374b