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2018
DATE
12 - 07
Talking about the precautions of circuit board maintenance
In the process of using the circuit board in peacetime, it is often caused by improper use, incorrect processing or aging of components, which causes the circuit board to work abnormally or even burn out. At this time, it is necessary to repair the circuit board. Next, I will introduce you to the pr
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2018
DATE
11 - 29
SMT chip processing basics
First, the characteristics of SMTThe assembly density is high, the size of the electronic product is small, and the weight is light. The volume and weight of the chip components are only about 1/10 of that of the conventional plug-in components. After the SMT is generally used, the volume of the ele
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2018
DATE
11 - 23
Terminology summary of letters on the board
Rx is a resistor, there are many resistors in the circuit diagram, according to the serial number, R1, R2...Cx is a non-polar capacitor, anti-interference capacitor at the input of the power supply;IC integrated circuit module;Ux is an IC (integrated circuit component);Tx is the test point (for fact
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2018
DATE
11 - 15
PCBA test fixture production point analysis
PCBA testing is an extremely important part of the entire electronic manufacturing service. It can strictly control the quality of shipments in the final stage, and find problems in time to adjust the previous processes such as SMT and DIP, optimize the process, and realize the layering with a detec
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2018
DATE
11 - 08
Introduction of the process flow of pcb copy board
The copy board is also called the change board, which is the reverse technology research on the designed PCB board. With reference to a large amount of information, the process of copying boards is summarized as follows: The first step is to get a PCB. First, record the model, parameters, and positi
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2018
DATE
11 - 01
SMT patch quality analysis
Common quality problems of SMT patches include missing parts, side parts, turning parts, offsets, and damages.1. The main factors leading to the leakage of the patch1.1, the component feeder (feeder) feed is not in place.1.2. The air passage of the component nozzle is blocked, the nozzle is damaged,
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2018
DATE
10 - 27
How to shorten PCBA delivery?
The composition factors of PCBA delivery:1.The delivery time of PCB light board is relatively stable, and the delivery time of PCB board of four layers and below is usually about one week;2.component procurement delivery time span is very large, if they are all spot materials, can be completed withi
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2018
DATE
10 - 23
How to choose a qualified SMT processing factory?
The so-called qualified processing manufacturers are actually suitable processing plants. With the development of the processing industry, processing manufacturers abound, each processing manufacturer's strength is different, and the development status is also different. How to choose the right SMT
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2018
DATE
10 - 19
What are the benefits of PCBA patch processing for manual patching?
The process flow of PCBA processing is very complicated, including PCB board process, component procurement and inspection, SMT patch assembly, DIP plug-in, PCBA test and many other important processes.
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2018
DATE
10 - 16
Pcb circuit board positive and negative film basic introduction
The positive film of the circuit board: generally the pattern process we are talking about, the liquid used is an alkaline etching positive film. If the negative film is used, the desired line or copper surface is black, and the part is transparent, and the same is true. After exposure by the line p
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