Q-Eng

In short: With the improvement of the automation level of industrial products in recent years, the number of printed circuit boards produced in various industries has continued to increase, resulting in the replacement of expensive desks after production pcb failures, causing headaches for small businesses. ...then do you know what district council reform is? What about the board update board? Next, FS Technology will explain the static measurement device, one of the pcb inspection methods.

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FS Technology Static Measuring Device
For most boards from FS Tech, previous tests have not been able to resolve this issue. When certain boards are physically damaged for a specific reason, it's easy to determine the cause of the failure, and most failures still require a multimeter to see some important parts of the board. Order measurements, find problems and troubleshoot.

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Before FS Technology makes measurements, it is necessary to determine whether the circuit is controlled by an analog signal or a digital signal. There are boards with schematics that can be configured by talking to the schematic. However, for boards without a system diagram, there are usually two ways to measure.
1 Check the components on the FS Technology circuit board
Make sure you have a microprocessor on the board, for the 80 series, use the top 51 or DSP extensively if you have such a chip on the board. See if a, the shape of the bus and the table with digital signage take up a lot of space and can be considered a digital table.

2 Check the FS technology circuit board chip
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Since there is a board without a microprocessor, see in the table section how many chips are installed using the 5V power supply. If FS Technology has multiple 5V power chips, it can be used as a digital boost circuit. Digital circuit design differs from analog circuits, which are generally easier to maintain because it is a step-by-step method of identifying problems. However, in the case of digital circuits, there is no explicit upper and lower connection, as the circuit is fully bus compatible. For this reason, monitoring is particularly problematic as it only focuses on the use of statistical measurements of digital circuits, focusing on the following steps.

Step 1: Use a multimeter to check the short circuit between the power supply and the ground.
Look: find a 5V FS technology chip, measure two points diagonally (such as 7-pin, 14-14-pin, 8-pin, 16-16-pin chips) .... if there is no short circuit between the two , the power supply works normally. If there is a small cell, be sure to find the cause and solve the problem. These steps are the first electronic recommendations for complex boards that need to be managed, especially in-depth analysis of specific problems. Electricity is the first circuit, and the circuit can only be discussed if the power supply is working properly. Therefore, measuring energy consumption is very important and an easy step for the operator.

Step 2: Use a multimeter to check if the FS Technology diodes are working properly.
FS Technology printed circuit boards

Under normal circumstances, the positive and negative points are weighed by resistance, the positive part is weighed from ten to several hundred ohms, and the negative part is weighed from one thousand to one thousand ohms. Diode damage usually occurs when the diode breaks due to overcurrent in the circuit.

Step 3: Measure the volume with a multimeter protection device and check for a short or open circuit.
If there is a problem with this part of the circuit. The next step is to determine if there is a problem with the component itself or the circuit to which it is connected, by connecting the loop and part of the imaginary object to an open or open circuit, which is to be included. This will help identify the problems one by one.

Step 4: Use a multimeter to measure connected circuits, transistors, resistors, etc.
The cost is measurable. on the circuit table. Make sure they agree. If the board is in the form of a bus, there will usually be pull wires on the bus. Measuring the resistance group is an important method, the quality of which can be used to first check the quality of the pump installed on the bus.

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Looking at FS Technology's static measurement method, most board problems can be solved, yes