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    Metal Detector Schematic Provides Map For Operation

    For those with no background in electronics, the squiggly lines and circles as well as the many other pictures may appear to be the drawings of a child. However, without a metal detector schematic the detector could not be built or repaired. Technicians rely on the information provided on a metal detector schematic to diagnose and repair any malfunction of the unit.

    The metal detector schematic may have also helped designers in their quest for better operational standards and by examining the drawings of existing, working models, they could input their own ideas and suggestions on paper before trying them in the lab. Many schematics are born on napkins or scrap paper as inventors being to place their thoughts on paper. Understanding the theory of electronics and being able to visualize the desired job of individual circuits and role played in the big picture, can be helped by using metal detector schematic drawings for future enhancements.

    Repair shops will need a metal detector schematic for each make and model they will work on and many manufacturers will supply them free of charge for an authorized service center that conducts warranty repairs. Other repair shops may need to pay for a schematic drawing of a particular model if they are not authorized by the manufacturer to perform warranty work.

    Schematic Symbols Have Real Purpose

    Those unfamiliar with electronic symbols will have a tough time understanding a metal detector schematic as each picture or shape included represents a specific type of circuit component and its value may be included as a side note. Capacitors, resisters and coils each have their specific symbol and in trying to repair a unit, it will be impossible with out the drawing.

    For example, a unit that fails to indicate the presence of metal could be caused by one of the three coils. By reviewing the metal detector schematic the technician can determine with the frequency of the three coils should be and test it to find out which one may be out of proper range. The tech could then verify the proper operation of the components within that circuit to locate and replace the offending part.

    Many technicians have learned over the years of repairing metal detectors that the first thing to look at before pulling out a metal detector schematic is the batteries. Numerous times the batteries have been drained and the owner failed to replace them. This is one item that is not included on any metal detector schematic, and falls under the category of operator error.

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