Detecting car battery drain with a multimeter Step 1: Disconnect the negative terminal of the battery. Step 2: Insert the red probe of the multimeter into the 20A current socket and set the dial to DC 20A. Step 3: Connect the probes as shown in the image above, with the red probe touching the battery … Read more
The technology of SD cards is developed based on the MultiMedia Card (MMC) format, and they are similar in size to MMC cards, measuring 32mm x 24mm x 2.1mm. The length and width are the same as MMC cards, but they are 0.7mm thicker to accommodate larger storage units. Now, let’s see how to repair … Read more
Many Huhutong set-top boxes now use the BGA-packaged 25Q64 chip. To read and write data for this chip, a dedicated BGA24 programming seat is required. This programming seat directly converts the chip’s BGA pins to DIP pins, and the 8-pin header is compatible with any programmer that supports the 25 series chips, providing great convenience … Read more
Now, digital multimeters are cheap and practical, and I don’t need to elaborate on their benefits. However, there’s one issue that has been bothering me: the high battery consumption. Fortunately, with the development of technology and components, I can now replace that annoying 6F22 battery. Friends with the same problem might as well give it … Read more
[Tip] Click the blue text below the titleElectrician Home to follow For business cooperation, please contact QQ: 2226701662 For more exciting consultations, please follow Electrician 365 (diangong365) Electrician Home QQ Group: Group 1: 468193845 Group 2: 522898769 The multimeter is one of the indispensable tools for automotive repair technicians. Early multimeters had very simple functions, … Read more
The multimeter is our eyes; without it, we would find it difficult to fix various faulty machines. However, blindly trusting measurement results can sometimes lead us into a confusing world, [excluding cases of multimeter malfunction and inaccurate measurements]. Here are a few simple examples: A modified board machine had a faulty abl resistor, causing the … Read more
Click the blue text to follow us Hello to all repair enthusiasts, I am Lao Zhou, and I have been engaged in electronic repair for 15 years. Today, let’s talk about the waterproof modification of the smart toilet cover circuit board. Speaking of this, I remember a customer last week whose smart toilet cover suddenly … Read more
Common Faults and Troubleshooting for Vatti Blender Phenomenon Cause Repair Method Remarks Touch buttons unresponsive Control board failure Visually check if the spring solder joints have cracks or voids, and if the IC pins are oxidized. Replace the control board Knob switch unresponsive Knob switch board failure Visually check if the encoder pins have cold … Read more
Source: “Forging and Stamping” 2023 Issue 23 Guo Qiuhua, Zhang Chengwei, Jin Long E·China Automotive Engineering Research Institute Co., Ltd. As people’s demand for personalized and customized automotive products increases, coupled with the challenges of long manufacturing times and high costs of some traditionally complex parts, 3D printing technology is becoming increasingly favored by automotive … Read more
LCD TVs and CRT TVs have similar basic principles in their circuit components. However, some repair technicians are unfamiliar with the logic boards of LCD TVs, and their maintenance theories and ideas have not been updated. When faced with faulty LCD TVs, they hesitate to repair them and miss out on lucrative opportunities. In fact, … Read more