تسريع وتحسين طرق استكشاف أخطاء PCB وإصلاحها

ما هي طرق استكشاف أخطاء PCB وإصلاحها

Due to the continuous modernization of technological trends, PCB assembly is more complex and intricate than ever in the current era. With this, PCB troubleshooting is becoming one of the important pursuits of specific expertise, technology and R&D. Fortunately, there is no need to panic or frown, because there are some simple PCB troubleshooting methods that can help speed up the detection, verification, and testing of troublesome components and functions in damaged printed circuit boards. The following content will guide you to use simple methods to optimize and accelerate PCB troubleshooting.

Testing Equipment

When troubleshooting multilayer PCBs, the results are more challenging for signal analysis, size, component type, and number of layers. Some complex PCBs require special mechanized equipment for PCB troubleshooting, and in many cases, ثنائي الفينيل متعدد الكلور rework and repair are performed by basic electronic instruments to provide current, signal, and trace mechanisms smoothly through the circuit.

Some common tools for PCB troubleshooting mainly used by الشركات المصنعة لثنائي الفينيل متعدد الكلور include multimeters, LCR meters, logic and circuits. Power analyzers and oscilloscopes have a specific foundation for handling complexity, and the root cause of the operating behavior of affected circuits needs to be investigated.

Discrete component inspection

Discrete component detection is one of the centralized methods for PCB troubleshooting, which helps to test each component individually. This type of test is done with the help of various tools. Using LCR meters or multimeters, you can test the piece-by-piece values of transistors, capacitors, resistors, inductors, LEDs, and other active components. The component is well stated, with values equal to or less than the standard component. On the other hand, if the component value is indicated as being higher than the standard component value, it is detected that the solder joint is defective or the component is indicated as bad.

By powering each component individually. Another option that allows a unique comparison between current and voltage measurements is node analysis.

Vision inspection technology

A simple method of tracking and controlling to identify and locate PCB damage through magnification and thorough visual inspection technology. This method helps to detect overlapping marks, overheated, cracked or damaged high-mark components and missing components on the PCB. In many cases, the magnified visual inspection technology can immediately find very few scorched or expanded parts.

The visual inspection technology is one step ahead, and the physical inspection is performed on the power applied on the circuit. This technology is used to detect hot spots and the surface of printed circuit boards and components on circuit boards without using cameras that prove to be quite expensive. Then, with the help of compressed canned air, the detected thermal element is cooled to reduce the temperature to test the circuit mechanism.

Physical inspection

There is no doubt that physical inspection is one of the simple and effective ways to optimize PCB troubleshooting. But at the same time it is also considered a dangerous method that requires many precautions. This method is only applicable to low voltage circuit boards. On the other hand, touching the power supply circuit and various components on the PCB will bring about changes in the circuit impedance, which in turn will change the system behavior. Because of this change, finding the affected circuit that requires additional capacitance for smooth operation becomes effortless.

Integrated circuit analysis

Another simple method to optimize PCB troubleshooting includes integrated circuit analysis. Some ICs are analyzed and identified by logic analyzers or oscilloscopes, while many ICs are only detected by tags. In addition to complex PCB layouts, there are more and more challenging special types of ICs with different configurations. Here, a simple way to deal with damaged PCBs is to compare the behavior of the affected circuit with the behavior of a good circuit to track abnormal behavior on the circuit.

When the PCB document or its component signature has been lost, analog signature analysis is one of the effective techniques for PCB troubleshooting. It is used to test the PCB without power supply, crash or failure.

There are other methods for speed detection and optimization of PCB troubleshooting:

• Function test.
• Use PCB troubleshooting software.
• تحقق من وصلات اللحام.

أخيرًا ، يمكن لبعض المتسللين الأبسط تشخيص الأعطال في PCB بشكل فعال: من خلال تبديل الفولتية ، يمكن اختبار عدد الدبوس المرتفع غير المعروف. يمكنك أيضًا استخدام المعدات المطلوبة مثل المتر المتعدد للحصول على جميع التوقيعات والحث ومقاومة الجهد لكل مكون ، وذلك لحساب خصائص ثنائي الفينيل متعدد الكلور المعيب ومقارنتها.

Kingford هو أحد المتخصصين ذوي الخبرة الذين يقدمون خدمات محسّنة لاستكشاف أخطاء PCB وإصلاحها وإعادة عمل PCB وإصلاح PCB. مع وجود قاعدة عملاء واسعة من مختلف الصناعات ، فمن الممكن تعديل وتعديل وتغيير مركبات ثنائي الفينيل متعدد الكلور المعيبة والميتة و "خارج الطلب". على السطح ، أطلقنا مشروع استكشاف الأخطاء وإصلاحها في PCB ووضعنا خطة ذكية لجميع المشكلات التي تتطلب الاهتمام. يتضمن بعضها الوقت المستغرق ، وتكلفة المواد ، ونوع الفحص المطلوب ، والطلب على لحام ثنائي الفينيل متعدد الكلور الخالي من الرصاص. بعد تحديد معلمات استكشاف أخطاء PCB وإصلاحها ، تبنت Kingford تقنية الترقية واتخذت الخطوة التالية نحو عملية إعادة صياغة PCB التي تم تحديدها بوضوح.