Weifuteke mobile comprehensive testing instrument has large errors and requires online repair consultation

Weifuteke mobile comprehensive testing instrument has large errors and requires online repair consultationAlthough highly automated T-components are consistently used, manual welding is still highly required in their manufacturing process. Therefore, the significance of manual welding for T-assembly and some techniques will be introduced. One advantage of T-assembly is that compared to traditional through-hole components, chip components require a smaller wireless comprehensive testing instrument area due to their high assembly density. Smart home appliances, smart robots, smart toys, etc., all of which will bring better services to people. Smart manufacturing can be seen as the mainstream of the intelligent field, and smart workshops are the carriers of the intelligent field. Smart workshops are committed to optimizing manufacturing programs and continuously improving performance, functionality, quality, and profitability of manufacturing systems. The power supply issue of the wireless comprehensive testing instrument may occur in the primary or secondary section. Even if there are some issues with the remote part of any radio synthesizer circuit, such as IC or transistor short circuits in the monitor color circuit board, the power supply may not work or just flicker. There are multiple methods to eliminate power failures in wireless comprehensive testing instruments; I will explain one of my repair methods. Whenever the power supply is sent for repair, whether it's the monitor power supply or the computer Atx power supply, I always test the power supply before opening the casing. Power issues can be divided into no power, low output power, occasional or one-time power failure, power flicker, and high output voltage. No matter what problems arise, I will use standard programming methods to test it.

According to the characteristics of defects, automatic systems for checking short circuits or open circuits should usually be used, which increases the manufacturing of QFP. Having traces and solder pads on both sides rather than on one side, DRC stands for Design Rule Check, which is a software validation of the layout of wireless integrated testers. These are typically used in wireless integrated tester design before production to ensure that the design does not contain any potential sources of error, such as small drill holes or traces that are too close together. The former is a double-sided board.

Weifuteke mobile comprehensive testing instrument has large errors and requires online repair consultationIntroduction:

-Check the switch and fuse of the wireless comprehensive testing instrument and discharge the large filtering capacitor - if the fuse burns dark, the power supply may be severely short circuited. It may be a short circuited bridge rectifier, a short circuited power transistor, or even a short circuited power IC. Do not underestimate the possibility of a short circuit in the winding of a switching power transformer. If the fuse is only slightly torn, it may be due to damage to the fuse itself, as fuses also have a lifespan. In most cases, simply replacing the fuse can solve the problem of no power supply.
-Ensure that all secondary components are working. You can remove one of the component leads for accurate inspection, or use the flyback tester described in this article.
-If you repair the monitor, please check the horizontal output transistor, b+FET, and flyback transformer. At any time, if any of these components fail, it will affect the power supply function. Click on the blue link to read the test FET and flyback transformer.
-Use an ESR tester to check all electrolytic capacitors in the primary and secondary sections of the wireless comprehensive testing instrument. If there are some electrolytic capacitor faults in the power supply section (primary or secondary area), the power supply will flash, produce low output power, or have no power!
-Use a flyback tester to test the primary winding of the switch power transformer in the wireless comprehensive tester. If you repair the monitor, you also need to check the flyback primary winding, b+coil winding, and horizontal yoke coil. A short circuit in one of the coils can cause the power to shut down, flicker, and lose power.

This makes the automation process easier, but automatic routers are difficult to create and set up. Cleaning can be carried out in the T assembly production line or offline, and inspection is used during the T assembly process to ensure that the quality of welding and assembly is compatible with the corresponding manufacturing standards and regulations. Many devices and tools can be used to participate in T-testing, such as magnifying glasses, microscopes, and ICT (online testing equipment).

And make the amount of solder immersed small, with strict control over the depth of immersion. Experiments have shown that when the immersion depth exceeds 50 degrees of the solder height, on the one hand, the amount of solder will increase, on the other hand, the amount of solder immersed will increase, and on the other hand, the solder will wrap around the spherical terminal, resulting in excessive solder deposition. Carefully consider crosstalk at every stage of the entire process, which refers to the routing and wiring of wires. Harmful electromagnetic coupling between cable bundles, components, or other electronic components that may be affected by electromagnetic interference.

The reliability requirements of radio comprehensive testers for different parts of vehicles. As a public transportation tool, automobiles belong to a series of high reliability products, in addition to the conventional dimensions of mechanical and electronic products. In addition to appearance and performance requirements, a series of reliability tests are also conducted on them, one of which is the Thermal Cycle Test (TCT), which sets 5 levels based on different parts of the vehicle. In addition, ENEPIG has highly reliable wire bonding capabilities.