The circuit board of a water purifier is the core component responsible for controlling the entire system’s operation, including water quality filtration, purification, and display functions. If the circuit board malfunctions, it may cause the water purifier to operate improperly, leading to frequent starts and stops. 1. Functions and Components of the Water Purifier Circuit … Read more
1. Observation Method When we receive a circuit board for repair, the first step is to carefully observe its appearance. If the circuit board has been burned, it is crucial to check whether the power circuit is functioning correctly before powering it up, ensuring that no further damage will occur. The observation method is a … Read more
1. Characteristics and Repair of Capacitor Failures in Industrial Control Circuit Boards Failures caused by capacitor damage are the most common in electronic devices, especially with electrolytic capacitors being the most prevalent. Capacitor damage manifests as: Reduced capacity; Complete loss of capacity; Leakage; Short circuit. Since capacitors serve different functions in circuits, the characteristics of … Read more
Troubleshooting Inverter Circuit Boards Generally speaking, the printed circuit boards on an inverter mainly include the drive board, main control board, and display board. The factors affecting the lifespan of the inverter’s printed circuit boards include the lifespan characteristics of the smoothing capacitors in the power supply section and the buffer capacitors in the IPM … Read more
A multimeter is an essential measuring instrument in electrical and electronic departments. As temperatures gradually drop and rainy, humid weather increases, the number of reports regarding electrical leakage faults has also risen. I believe many friends have been thinking hard about finding the cause of electrical leakage. In fact, we can easily find the cause … Read more
[Tip] Click on the blue text below the titleElectrical Workers Home Follow For business cooperation, please contact QQ: 3350579506 For more exciting consultations, please follow Electrical Workers 365 (diangong365) Electrical Workers Home QQ Group: Group 1: 468193845 Group 2: 522898769 Electrical Workers Home 1. Selection of Analog and Digital Multimeters: 1, Mechanical analog multimeters have … Read more
1. Correct Use of the Multimeter Correct use of the multimeter requires familiarity with the dial. Adjust the two zero position adjusters gently. Choose the right terminal, and plug the red and black probes into the correct holes. Rotate the switch to the correct range. Choose the appropriate range for accurate measurements. Look closely at … Read more
A multimeter is an electrical tool that can be useful for engineers, electrical beginners, seasoned electricians, and ordinary residents alike. But do you really know how to use a multimeter? Today, I’ll introduce the multimeter from four aspects: Multimeter Brands, Understanding Multimeters in One Minute, Essential Tips for Using Multimeters, and Ten Key Experiences with … Read more
A multimeter is a common electrical measuring instrument. In addition to its common uses, there are some lesser-known applications. Here is a complete summary of these uses: 01 Determine if a Circuit or Device is Live The multimeter can be used to determine if a circuit or device is live. By selecting the appropriate measurement … Read more
Correctly using a multimeter can not only quickly determine the location of faults but also prevent damage to electrical equipment and the multimeter itself. Below, I will share some tips for using a multimeter. Measure first check the range, not checking means not measuring Do not change the range while measuring, switch to the empty … Read more