Testing whether the IC is burned out or short circuit requires professional knowledge. Generally, people without such knowledge and skills can make some simple judgments by carefully observing the appearance of IC: whether the IC surface has burned marks, such as blobs, cracks, discoloration and so on. IC pin break, unsolder. Does IC have burnt [...]
Let's look at the original purpose of JTAG, boundary testing JTAG controls (or HiJack) all IC pins. On the picture, maybe the JTAG will make all the CPU pins output... FPGA House published on 11-29 11:21•198 Reads Main features and application advantages of 2200 series PROGRAMMABLE DC power supply Whether in research LABS, design and [...]
Methods and skills in circuit board maintenance The introduction Control system due to the high price, so when its failure, in order to pay attention to economic benefits, cost saving, generally use the way of maintenance. But in the following cases, the need to replace a new circuit board: the circuit board has reached the [...]
Control system due to the high price, so when its failure, in order to pay attention to economic benefits, cost saving, generally use the way of maintenance. But in the following cases, the need to replace a new circuit board: the circuit board has reached the end of life; The circuit board is badly damaged [...]
FPC is also called flexible circuit board, flexible circuit board, soft board, soft circuit board and so on. The number of flexible circuit boards can be more than 100 lines, but the thickness can be 0.13mm, and the number of circuits of an FPC can be more than 100, but only occupy the thickness of [...]
The analysis report on the status quo of the printed circuit board (PCB) industry mainly analyzes the following points :1) The life cycle of the printed circuit board (PCB) industry. Research and judge the development stage of the printed circuit board (PCB) industry through the market growth rate, demand growth rate, product varieties, number of [...]
Printed circuit board (PCB) design software is an excellent tool for designing PCBs for electronic devices. By using PCB design software, engineers can not only solve problems related to power integrity and signal, but also modify and improve the entire circuit structure. PCB design software can be easily integrated with other associated plug-in PLM software, [...]
FPC flexible circuit boards are widely used in smart phones due to their high wiring density, light weight, thin thickness, and good flexibility. The FPC flexible circuit boards in smart phones are mainly used for the connection of parts and the motherboard, like Display modules, fingerprint modules, camera modules, antennas, vibrators, etc., with the continuous [...]
We often see the following signs on many circuit boards or electronic products. Do you know what they mean? FCC mark, CE mark, hand mark, trash can mark on the Atmel development board RoHS mark and RU mark on NXP development board Hand sign, trash can sign, Pb sign on NXP development board CE mark [...]
The advent of the 5G era has put forward higher requirements for the R&D, production and management capabilities of the majority of circuit board companies. Companies must provide more cost-effective products to the market at a faster speed. It is also very important to improve the efficiency of product management traceability. Part of it. Marking [...]