What are the circuit board repair steps-FS Technology
Summary: In recent years, the management level of industrial equipment has improved significantly, so the number of industrial control boards in several industries has also increased. After the collapse of the regulatory industry, the cost of replacing equipment has also become a major headache for entrepreneurs. So do you know how to fix a circular screen? What are the steps to fix the round screen? Next, let's take a look at the knowledge of circuit board maintenance with FS Tech.
Look first, measure later
FS Technology recommends that you should check the navigation screen. If necessary, pay attention to the magnifying glass.
1. Whether the cable is broken or short-circuited, especially the connecting wire printed on the round screen is broken or stuck.
2. Whether there are suitable components such as resistors, capacitors, inductors, diodes, triodes, etc. It was interrupted.
3. Is there any maintenance? Which parts were pressed? There are problems with welding, welding, improper installation, etc.
When testing with a series switch, it is best to use a standard switch similar to the suggested design, if possible. Then use the VI Folding Bar function to make a negative comparison of the two plates. The test points start from the peripheral ports, and then from the outside to the inside, especially the capacitance comparison test. This covers losses when it is difficult to determine if the multimeter is leaking.
Easy before difficult
In order to improve the FS technology test results, some technical processing of the modified screen is required to interfere with the various interference factor tests before the online circuit board test. The specific conditions are:
1. Preparation before the test
Short circuit crossover oscillator circuit for high voltage power supply to open footwell. The charging and discharging of large capacitors can also cause interference.
2. Use the exclusion method to test the device
In online or similar device testing, for each device that passes the test (or abnormality), the test results are directly checked and recorded. If the test fails (or fails), it will be retried. If it still fails, FS Technology recommends that you check the test results first. This continues until the device is tested (or compared to the screen). Then deal with those devices that fail the test (or are impatient).
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3. Use the ASA-VI curve scan test to compare and test the devices not covered by the test library
ASA-VI Smart Folding technology can be used for similar testing as any other device. While testing procedures may include equipment, there is a table to consider. Through comparative testing, the device has a high error rate and can detect errors. When testing your device over the web, this feature goes beyond the limitations of library testing devices and expands the selection of navigational agency failure detection devices.
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static before moving
Currently, the functionality on the navigation screen may be limited to analyzing the navigation and characteristics of the device on the navigation screen. Therefore, if a defective board is manufactured, it must be placed on the first test equipment. For best results in this inspection job, judge whether the circle chart is appropriate. At this point, it's a good idea to check that the device's power is properly connected to the navigation screen, and that the connectors on the screen are connected. Make sure the influence of the circle context and the circle error are isolated, otherwise the correct action will be taken!