section class=”_editor” data-support=”96编辑器” data-style-id=”40378″> Fixing Bluetooth Issues on Mac: Module Reset and Service Restart Mac users have probably encountered this situation: Bluetooth headphones are clearly on, but they won’t connect; the mouse and keyboard mysteriously disconnect… As an engineer with 8 years of experience in Mac repairs, today I will teach you how to completely … Read more
1. Repair Procedure for Burnt IGBT or Fuse on Circuit Board If the current fuse or IGBT is burnt, you cannot immediately replace the component. You must confirm that the following other components are in normal condition before proceeding with the replacement; otherwise, the IGBT and fuse will burn out again. 1. Visually check if … Read more
Over 60,000 friends have followed the Industrial Control WeChat platform: Technical sharing, Learning exchange, Industrial control videos Basic Mnemonics for Circuit Board Repair A typical circuit board is composed of millions of circuits. The appearance of components often changes; recognizing characters is key. Resistors and capacitors are the most common; damage is also very prevalent. … Read more
Click the blue text to follow us Recently, I took on an urgent repair task; a control board had multiple broken fly wires, and the client requested a repair within 24 hours. This posed a challenge for me, as 0.1mm enameled wire is difficult to handle under a microscope, not to mention ensuring reliability. However, … Read more
Click on the “Public Account” above to get the latest news! The touch screen is a device that integrates display and touch control. Because the touch system serves as a bridge for human-computer interaction and is widely contacted by humans, and since it is primarily made of glass, it is relatively fragile, resulting in a … Read more
1. Accessory Information 1. USB connection cable — connects the main board and the touch screen PCBA board 2. Touch screen PCBA board — the data processing center for the touch screen 3. Touch screen data connection cable — connects the front touch screen (glass) to the PCBA board 4. Ground wire — grounds the … Read more
As an important component of electronic devices, the repair process of PCBA needs to strictly adhere to a series of technical specifications and operational requirements to ensure the quality of the repair and the stability of the equipment. This article will explore various key points that need to be considered during the PCBA repair process, … Read more
1. IdentificationThe customer’s vehicle cannot start, checking DTC fault P0339: Crankshaft sensor signal interruption fault. Replacing the CKP sensor and several other components did not resolve the issue.2. Analysis2.1. Fault DescriptionThe Crankshaft Position (CKP) sensor detects the fuel injection/ignition timing and engine speed for each cylinder. The CKP sensor consists of a rotor and a … Read more
◆◆Mercedes-Benz E200 Air Conditioning Not Cooling◆◆ (1) Failure Symptoms The chassis model of this vehicle is W211, equipped with an M272 engine. The air conditioning system is not cooling, and the two air outlets in the center of the dashboard are not blowing air, while the side outlets are blowing hot air. (2) Diagnosis and … Read more
Vehicle Condition: A BMW 328i with a mileage of over 220,000 km. The engine experiences idle shaking, fluctuating RPM, and sometimes fails to accelerate, emitting black smoke at times. Fault Diagnosis: Using a BMW-specific diagnostic tool, three fault codes were retrieved: 16685 (Cylinder 1 Misfire) 16686 (Cylinder 2 Misfire) 16688 (Cylinder 4 Misfire) It was … Read more