PCB board repair refers to the bringing the physical damage which has been done to a PCB-namely pad or trace lifting, laminate repair, eyelet replacement to name a few-back to a point to where the printed circuit board can function based on the original design requirements. Printed circuit board repair skills and processes require lots of patience and a high degree of hand-eye coordination.
Operational Amplifier PCB Board Repairing can be categoried as below steps:1st of all, judging the quality of op amps is quite difficult for quite a few electronic maintainers. Ideal op amps have “virtual short” and “virtual break” characteristics. These two characteristics are very useful for analyzing operational amplifier circuits that are used linearly. To ensure…
Engineer needs to pay attention to Failed Electronic Circuit Card Maintenance Order to find the shortest path to solve the problem, avoid random dismantling or desoldering which will cause the unsuccessful of motherboard maintenance and the failure will expand to more blocks or positions; Control board reworking is like a doctor seeing a doctor, but…
When Restore Broken Printed Circuit Board Without Schematic Diagram, most of engineers will feel it is very difficult and have no idea where to start, below we would like to introduce several methods which can help you effectively conquer this obstacles and find the most efficient way to do it: Be “chattered”To thoroughly understand the…
Malfunctional Canon SCH/EL PCB Board Troubleshooting can take advantage of analog signal analysis method, and there are several main points need to take into account for the process: (1) Accumulate and improve VI curve library. The VI curves of various circuit board nodes that may be tested in the future are collected into a VI…
As we all know, Faulty Controller Circuit Card Refurbishing by Analog Signal Analysis can be applied on the pcb board repairing, different components have different characteristics and have different VI curves; at the same time, when a component fails, its VI curve will also change, and the nodes on the circuit board are composed of…
Industrial Automation Controller PCB Board Recovery specific characteristic is the repair amount is large, but the types of circuit boards to be repaired are small, the maintenance staff will even record the normal values of such data in detail for reference. A large number of PCB circuit board maintenance practices have shown that this detection…
Analog Signature Analysis, is a unique technology that eliminates the failure of electronic circuit boards when power is turned off when repair electronic PCB board; It uses scanning waveforms (because the sine wave has a small harmonic component and the signal is stable, AC sine waves are generally used), which is applied to both ends…
In the design and maintenance testing of circuit boards, Electronic Printed Circuit Board Troubleshooting is a complex and time-consuming problem. In the past, in many companies, an effective solution for troubleshooting electronic controller cards of equipment was often not found. The traditional method is that some experienced engineers rely on a series of test equipment…
Integrated circuit PCB board detection is to perform intuitive quantitative and qualitative processing and judgment on the parameters, principles, and indicators involved in the field of electronic circuit boards.The Integrated Circuit PCB Board Maintenance is based on the comprehensive test of electronic circuit boards and the results. Through theoretical analysis and comparison of test results…
Curve analysis method has been applied in Schneider Magnetic Resonance Imaging Equipment CPU PCB Board Maintenance, viewed from the curve, there is a conduction point and a breakdown point, indicating that the node has semiconductor devices connected. The curve is ring-shaped, indicating that the capacitance curve is off the vertical axis, and that there is…