Detect quickly the method that gives issue of PCB board breakdown

The PCB that make board be not press flow simply to finish bat, it is good to get an aperture to make yuan of parts of an apparatus or appliance. Of PCB it is not difficult to make, depend on hard making the breakdown platoon after finishing check. No matter be individual lover or industry engineer, to PCB circuit board encounters a problem when debug also is comparative headache, like be just like programmer to encounter BUG. Some people to debugging PCB circuit board is having strong interest, solving BUG like programmer same, common PCB circuit board problem is not little, common problem besides circuit board design, electron yuan short circuit of the attaint of parts of an apparatus, circuitry, yuan circuit of the quality of parts of an apparatus, PCB board the breakdown that break a string is absent a few. Circuit board breakdown still basically centers the PCB with the diode annulus lubricious common resistor of attaint in yuan above parts of an apparatus, wait like canal of effect of capacitance, resistor, inductance, diode, dynatron, field, compositive chip follows brilliant brace up apparent attaint, and judge these the method can observe through the eye. The electron that has apparent damage yuan surface of parts of an apparatus has relatively apparent burn mark. Resemble this kind of breakdown, change problem component to be able to be solved newly directly. Is doubt like attaint component? Not be this component attaint actually of course, be not all electrons yuan attaint of parts of an apparatus can observe with naked eye, the resistor that place of as above face says, capacitance, 23 extremely the canal, damaging below a few circumstances is cannot see from the surface, the examination tool that needs major of have the aid of undertakes maintaining, commonly used examination appliance has: Watch of avometer, capacitance, detecting some electron yuan voltage of parts of an apparatus or electric current is not inside normal limits, show this yuan of parts of an apparatus or issue of existence of before one yuan of parts of an apparatus, change directly it is normal that reexamination looks. The exterior does not have any attaint and do not detect the circuit that gives trouble board yuan if parts of an apparatus is broken, no matter be,detect with the instrument, can detect come out, but occasionally we are in on PCB board yuan parts of an apparatus when, can encounter do not detect give an issue, but the circumstance that circuit board cannot work normally again. A lot of novices encounter this kind of problem with respect to can find no way out, can make a board afresh only, or buy. Encounter this kind of situation actually, a lot of moment are yuan of parts of an apparatus in installing a process, because of individually yuan the issue that parts of an apparatus coordinates the work, possible meeting occurrence performance is not steady. Area of circuit board loop piece differentiate encounter this kind of situation, the instrument cannot have risen to help action, can try to judge the limits with possible hitch according to voltaic voltage, narrow as far as possible, the engineer that has experience may enough very fast judgement breakdown area, but yuan of specific parts of an apparatus which bad finish cannot 100% affirmatory. Only way can try to change only doubtful component, until find problem cell till. Last year, my jotter advocate board drink water, also had encountered when be maintained to the master do not detect give breakdown seat, and be in three-d changed in maintenance process, it is power supply chip, diode, USB charges respectively component (it is jotter blue socket that, close can charge to equipment below plane position) , finally also is to pass a wave to detect check with the platoon change doubtful chip, just be the short circuit of a component on Naqiao chip edge finally certainly. Place of above of circuit board flying line says is an electron actually yuan the problem of parts of an apparatus, of course, since PCB circuit board the stay dot that serves as yuan of parts of an apparatus, so circuit board breakdown also is existence for certain, the simplest case is dead tin-plating place, because make craft matter, the process is corrupted in PCB in, possible meeting appears string problem. Encounter this kind of situation, if cannot fill line, can solve with flying line of fine copper silk only so. PS:PCB circuit board below the circumstance that breakdown is not apparent attaint, check really exceeding trouble, and the process is examined in the platoon in, can have a dedicated mind, wait for there can be ineffable achievement feeling after finding out a problem, programmer solves BUG namely this kind of mood, I often like to discharge consult a few board that maintain hard, I feel that is a kind of fun. CNC Milling