LG Smart TV Power Supply Assembly

The LG Television Power Supply Board (Part Number: EAY65895422) is an authentic original equipment manufacturer (OEM) replacement power supply unit (PSU) designed for LG LED/LCD televisions. Mounted directly inside the TV rear chassis, this SMPS (Switched-Mode Power Supply) board steps down AC household mains voltage into precise, regulated DC voltages (such as 12V, 24V, and LED backlight driver rails) required to power the main motherboard, T-Con board, audio circuits, and LED backlights.

Key Features

• Genuine OEM Precision: Manufactured directly by LG to original equipment specifications for exact mounting hole spacing and multi-pin cable connector fitment.

• Integrated Voltage Regulation: Features high-grade transformers, heat-sinked MOSFETs, and filter capacitors designed to regulate voltage and prevent current surges.

• Built-in LED Driver Circuitry: Converts high-voltage DC to supply steady current output directly to internal TV LED backlight arrays.

Benefits

• Solves power supply issues such as TV not turning on, standby power light blinking, sudden shut-offs, or no display backlight.

• Protects sensitive main processor boards from voltage spikes and dirty power input.

• Direct bolt-in replacement restores reliable, factory-standard television performance.

Applications

Designed specifically for select LG television models requiring part number EAY65895422.

What's Included

• 1 x Genuine LG Television Power Supply Board Assembly (EAY65895422)

Usage Instructions

1. DANGER: Unplug the TV from the electrical wall outlet and let it sit for at least 15–30 minutes to allow high-voltage electrolytic capacitors to discharge safely.

2. Place the TV face down on a soft, clean surface (such as a blanket or foam pad) to protect the display panel.

3. Remove the screws securing the rear TV cabinet cover and carefully lift off the back shell.

4. Locate the yellow/tan power supply board and disconnect all ribbon and multi-pin wire harness connectors.

5. Unscrew the ground screws and mounting fasteners holding the old PCB to the chassis frame.

6. Align the new LG EAY65895422 board, tighten mounting screws securely, reconnect all wiring harnesses, reattach the back cover, and test power.

Safety Instructions

• Disconnect main AC power prior to removing the rear TV cover. High-voltage capacitors can hold lethal charges even when unplugged.

• Wear an anti-static wrist strap and handle the PCB by its non-conductive edges to prevent Electrostatic Discharge (ESD) damage.

Care Instructions

• Keep TV ventilation slots clean and unblocked to ensure adequate thermal airflow over power board heat sinks.

5. Technical Specifications