How to replace the computer motherboard of LG drum washing machine?

Faulty washing machines are often a headache, especially when there is a problem with the motherboard. For LG drum washing machines, replacing the computer motherboard is not an easy task, but mastering the correct steps and methods can help you solve this problem. In this article, PHP editor Apple will introduce you to the detailed tutorial on replacing the computer motherboard of LG drum washing machine. From the disassembly steps to the installation details, he will guide you step by step to complete the replacement operation. Please continue reading to learn how to solve the computer motherboard failure of LG drum washing machine by yourself.

#How to replace the computer motherboard of lg drum washing machine?

How to repair the computer board of lg fully automatic washing machine;

1) Remove the two fixing screws behind the upper cover of the washing machine.

2) Use your hands to move backwards from the front of the upper cover a few times to remove the upper cover.

3) Turn the programmer knob pointer clockwise to the STOP position.

4) Use a screw driver to push the program controller knob outward from the back of the controller knob.

5) Loosen the wire binding wire so that the connection is free and loose.

6) Use a cross screw driver to loosen the two screws of the installation program controller, and then remove it from the operation panel.

What is the main board of a washing machine?

The washing machine motherboard is the core component of the controller, usually composed of hardware and software, and is used for automatic control of large equipment and systems such as air conditioners, elevators, and building automation.

A program is a set of instructions that can be accepted by the microprocessor. The program brings the microprocessor into a decision state. For example, a program can retrieve information from a sensor through a microprocessor and then tell the microprocessor what to do with that information. Finally, the program instructs the microprocessor to trigger an output control device such as a relay or solenoid. Various memories hold the program and other vehicle data. The microprocessor uses these data to perform calculations.

How to choose a second-hand motherboard for lg drum washing machine?

If you want to replace the motherboard of a general washing machine and choose a second-hand motherboard, the first thing we need to check is whether this second-hand motherboard is suitable for your washing machine. After finding the motherboard of the same model, we need to take a look. Can the function of this motherboard be started normally? Check whether there is any rust on both sides? Do you have all the resistors, capacitors, etc.? This is the most important thing when choosing a second-hand motherboard.

Is the 220 ohm resistor of the lg washing machine motherboard blown out?

of course. The larger the connection resistance, the more heat will be generated, and of course it will be easier to burn.

The current limiting resistor is also the fuse

If it is broken, it means that the subsequent stage is broken, the current is too large, or there is a breakdown and short circuit.

Only overcurrent will burn the fuse and resistor. Overvoltage will not burn these components. Check whether the thyristor is broken.

The resistor is burned out because the current is too large. You need to check the surrounding circuit to determine the cause

The above is the detailed content of How to replace the computer motherboard of LG drum washing machine?. For more information, please follow other related articles on the PHP Chinese website!