LG Microwave Oven PCB Assembly,Main

The LG Microwave Main PCB Assembly (Part Number / SKU: EBR77416907, Board ID: EAX65364901) is a genuine OEM main control board for LG 21-litre convection microwave ovens, including the MC2146BP and MC2146BL models (right-side mount). The main PCB is the brain of the microwave: it reads every keypad press, runs the cooking programmes and timer, and switches the relays that power the magnetron, convection heater, grill, turntable motor and cooling fan. Power surges, voltage fluctuations or moisture can damage the board, leaving the oven dead, the display blank, buttons unresponsive or the oven starting and stopping on its own. This original LG main PCB restores full control and factory cooking functions.

Key Features

• Genuine OEM Part: Original LG main PCB assembly EBR77416907 (board EAX65364901), factory programmed for the correct models.
• Model-Specific Fit: Built for LG MC2146BP and MC2146BL 21L convection microwaves, right-side mounting.
• Full Function Control: Manages microwave, convection, grill and combination cooking modes plus timer and auto-cook menus.
• Integrated Relay Switching: On-board relays switch power to the high voltage circuit, heater, motors and fan.
• Plug-and-Play Connectors: Original connector layout for direct reconnection of keypad, display and wiring harnesses.

Benefits

• Fixes faults such as a dead microwave, blank display, keypad not responding, wrong or random operation, or relays not switching heating functions.
• Restores all original cooking modes and auto-cook programmes.
• Factory programming avoids the compatibility problems of generic boards.
• Direct replacement with no rewiring.

Applications

Designed for LG 21-litre convection microwave ovens MC2146BP and MC2146BL that use main PCB assembly EBR77416907 (EAX65364901, right mount). Please match the part number on your existing board before ordering.

What's Included

• 1 x Genuine LG Microwave Main PCB Assembly (Part No: EBR77416907 / EAX65364901)

Usage Instructions

1. Disconnect and Discharge: Unplug the oven and safely discharge the high-voltage capacitor before opening the cabinet.
2. Note the Connections: Photograph all connectors and wires on the old board.
3. Remove the Old Board: Unplug the connectors, remove the mounting screws and lift out the board.
4. Fit the New Board: Mount EBR77416907 in the same position and reconnect every connector exactly as before.
5. Test: Refit the cabinet, power on and check the display, keypad and each cooking mode.

Safety Instructions

Microwave ovens contain a high-voltage capacitor that can hold a dangerous charge even after the unit is unplugged. Always disconnect mains power and safely discharge the high-voltage capacitor before opening the cabinet. Installation should be carried out by a qualified technician. Never operate the oven with the outer cabinet removed. Handle the board by its edges and avoid touching components to prevent static damage.

Care Instructions

• Use a voltage stabiliser or surge protector in areas with frequent power fluctuations.
• Keep the oven dry and avoid steam or water entering the control panel area.
• Do not press keypad buttons with sharp objects.

Technical Specifications