1. Classification of Black Screen Issues and Corresponding Solutions Black Screen Type Accompanying Symptoms Possible Causes Repair Cost Complete Black Screen Power light off Power board failure 50-100 RMB Backlight On, No Image Indicator light stays on Main board / Logic board issue 100-300 RMB Screen Lights Up Then Turns Off Indicator light blinks Backlight … Read more
1.Flexible Circuit Board Plating (1) Pre-treatment for FPC Plating: The surface of the copper conductors exposed after the coating process of the flexible printed circuit board (FPC) may be contaminated with adhesives or inks, and may also have oxidation or discoloration due to high-temperature processes. To achieve a tightly bonded plating layer with good adhesion, … Read more
Some screenshots of electronic books 【Complete Set of Hardware Learning Materials Collection】
To facilitate rework, it is recommended to provide sufficient spacing (3mm to 5mm) around the BGA. It is advisable to adopt the upper limit of the spacing, especially when CBGA uses a stepped stencil for solder paste deposition and when hot air is used for rework. However, if a diode laser system is used for … Read more
The recycling of waste circuit boards is a promising industry, but it also requires consideration of its specific risks and challenges. 1. Potential of Waste Circuit Board Recycling Waste circuit boards contain various metals and non-metal materials, such as copper, iron, aluminum, tin, nickel, etc., including small amounts of precious metals like gold and silver. … Read more
In the field of industrial automation, the design and SMT processing of industrial controller PCBs are critical factors that determine product performance, quality, and cost. A deep understanding of the data details, yield influencing factors, and cost composition is essential for companies to optimize production and enhance competitiveness. 1. Specific Data of PCB Design (1) … Read more
This series of instructional videos is led by Xilinx Senior Strategic Applications Engineers, guiding you from the ground up to master HLS and UltraFAST design methodologies, helping you become an expert in system design and algorithm acceleration! Course Update Schedule:Every second and fourth Tuesday of the month Mechanism of HLSLesson 2 As the saying goes, … Read more
With the development of AI intelligence, many chips more suitable for AI learning have been introduced following traditional CPUs and GPUs. This article introduces how to develop NPU chips based on the SDK provided by the RK platform. 1. Introduction to NPU Chips NPU stands for Neural Network Processing Unit. 2. Using RKNN 1. SDK … Read more
On December 6, the second day of the Qualcomm Snapdragon Technology Summit, Qualcomm provided a detailed introduction to the Snapdragon 855 mobile platform, which was officially announced the previous day. The new Snapdragon 855 platform not only adopts the latest 7nm process, a completely new CPU architecture design, and a new generation of GPU cores, … Read more
According to a report by Electronic Enthusiasts Network (by Cheng Wenzhi), IC Insights released the MCU sales data for 2021 a few days ago, revealing that NXP’s MCU sales reached $3.795 billion, ranking first. In fact, NXP is not only experiencing rapid growth in MCU sales but is also continuously innovating in product development. In … Read more