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  • Can Circuit Boards Be Repaired?

Can Circuit Boards Be Repaired?

Clare Louise
July 28, 2019August 6, 2019 No Comments

The four elements present in most of today’s printed circuit card are:

  • Copper
  • Fiberglass substratum
  • Silkscreen
  • Solder mask

In the earlier years of the innovation, PCBs contained one layer. By comparison, contemporary PCBs consist of multiple layers, which are essential to suit today’s complicated wiring.

In more recent PCBs, numerous high-pitch parts are included however not identified on the boards. Subsequently, the approaches required to troubleshoot and fix today’s PCBs is much more difficult than ever. On motherboard of the 1980s and ’90s, it was possible to perform fixings with the use of automatic screening devices, which simply do not work on today’s PCBs

Repairing on Old PCBs

On older printed circuit boards, the methods utilized for troubleshooting were executed in a variety of ways, consisting of the following:

  • Examination of the solder joints
  • Identification of the trouble
  • Troubleshooting of details parts
  • Evaluation of the integrated circuits
  • Consultation of the software application guidebook
  • Inspection with microscopic lenses
  • Tests of the capability

Most of these examinations are inadequate at fixing the kinds of troubles that take place on the more recent printed circuit card. In action to these newer obstacles, today’s PCBs receive an extra intricate evaluation.

Analogue Trademark Analysis

A component can be examined using two probes and a sine wave. On the liquid crystal display screen (LCD), you will see the voltage, currents, and stage shifts. The existing is on the y-axis, while voltage gets on the x-axis, you can see the resultant trace on the LCD.

How to Diagnose Issues with a PCB

Before you, in fact, deal with circuit board repair service, you should first pinpoint the root of the problem. Analysis work on a faulty PCB is carried out in the adhering to phases:

  • Determine the issue with the use of a VI tool. The rotating voltage is made use to evaluate the unknown pin matter.
  • The following step is to recognize the area of the issue. This requires evaluations at a microscopic level to locate the troubled components.
  • Last but not least, the defective component is removed from the motherboard, and a substitute component is placed in its area.

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