How repair a printed circuit board (Pcb) ? How can ability master this skill? More important is, what profit does this skill have to your professional career?

 

Why does electric engineer need to have clinking self-confidence to his PCB skill? Ground is very much. To greener and amateur, a very main reason is, this is the first pace that marchs toward more multifarious electronic product maintenance.

 

Why should give or take a lot of trouble master PCB to maintain technical ability?

 

Why to want so troublesome go learning component class PCB circuit board maintenance? we are not to live in “ in one-time ” world, want occurrence issue only, OK none does ground of be irresolute when firmness is needed cast electronic installation into ash-bin?

 

This is the first when why must learn maintenance PCB very significant reason. Be full of passionate people to electronic product, and the people that the hope repeats or the oldest rate uses electronic product, the copper that searching attaint takes element of baffle of line, definite on purpose, change in the course that these component resume PCB, psychology of meeting generation huge is contented.

 

 

The copper cash on PCB and substrate are detached (picture origin: The hope maintains faceless engineer)

 

No matter be returned from the amateur,be professional technician, want to learn to compose is built and maintain oneself project and system, must understand PCB how to work, and be when PCB occurrence problem capable to foster cordial relations between states them. For example:

 

Garage door remote controller

System of domestic movie theater

Controller of dynamical tool speed

TV

Computer

 

Electric engineer should master this basic technical ability adroitly more. Consumer and commercial domain cannot leave all sorts of sophisticated electron equipment, its design needs PCB mostly. How does understanding diagnose circuit board breakdown, repair or change the component of occurrence breakdown, technical personnel ability is right all sorts of computers and content couplet net (IoT) equipment has trouble removal.

 

The measure of simple rehabilitate PCB:

 

The commonnest PCB breakdown is damaged by hot attaint, physics and component voltage is exorbitant cause.

 

 

The component on PCB appeared to heat up attaint (picture origin: The hope maintains faceless engineer)

 

Although the fibre glass inside circuit board, copper cash is mixed,glue coating can prevent caloric accumulation on certain level, but a few PCB compare another some of PCB really more incidental statified damage with other heat.

 

Prepare the tool that repair PCB place requires and data above all:

Dagger or crop screwdriver or very fine sand paper

Copper Foil adhesive plaster

Welding torch

Sirocco gun

Scissors or craft knife

Pen

Cotton autograph and alcohol are brushed

Forceps

Clip

 

Press the PCB that the measure rehabilitate below damages next, make its return to normal function:

 

The 1st pace: Get off the solder of attaint dish or component. Above all, secure PCB go up in workbench, when be being operated so, it won’t move. Had better use adhesive plaster.

 

To diagnose the PCB of attaint, need to explore the signal intensity that nods individually and weaveform with oscillograph sometimes, the circuit that tests whole bat is successional. Need to locate burn down area simply only occasionally, change the element that has trouble, solder dish or take a line, receive the copper cash with existing PCB repeatedly afresh.

 

If you discover a certain element on PCB cannot work normally, can get off through the simple measure below and change this component:

 

Take sirocco gun, open switch. Sirocco gun and breakdown component apart at least 6 inches.

After a few seconds, get off component with forceps. If take no less than coming, heat a few seconds again, retry next.

 

If PCB solder dish be heated up attaint, best use dagger gets off his carefully. Must notice, get off the component of attaint from bat when, do not want attaint copper cash and the other component around.

 

The 2nd pace: Clean copper cash and purify solder. Get off the solder of attaint dish later, continue to use the solder above dagger purify. If use small knife inconvenience to complete this kind of more elaborate operation, also can use cusp screwdriver or the sand paper that take careful grit.

 

No matter use which kinds of tool, should expose copper cash completely finally, without Yu Liu’s solder, look clean luster.

 

The 3rd pace: Stick Copper Foil adhesive plaster on copper cash. Qing Dynasty clears clean besides the copper cash of attaint after this area, can stick Copper Foil adhesive plaster above.

 

Copper Foil adhesive plaster wants to overlap with existing copper cash, enclothe reach in existing via all round over one section section.

 

The 4th pace: Solder contact. At this moment, need solders carefully new Copper Foil adhesive plaster and already the connect that repair PCB copper cash is linked together. Relevant a few clew and warning are below:

 

Copper Foil adhesive plaster is soldering fuse quickly below temperature, it is OK to must decide accordingly one-time complete this operation.

As far as possible little heat, when the operation must careful, fast, with reducing the quantity of heat that bring to bear on.

 

Measure 5: Restore PCB via. Look for strong tool of a round head, be like pen or other and simple tool. Pressure just finishing soldering area to go up to be brushed forcibly, ensure ground of firmly of Copper Foil adhesive plaster is secured in whole solder dish area. After this area heats, adhesive plaster is remained stick.

 

Use this skill to be able to determine the position of via, have bore a hole with clip or other and similar tool next.

 

Measure 6: component put away hand-in-hand travel solders. Complete afore-mentioned step, PCB fostered cordial relations between states, can accept chooses new element.

 

Solder next everybody is familiar with the process of component very much. With before, should as far as possible little heat. New affixed Copper Foil adhesive plaster / the new solder dot between solder mat and copper cash may be not quite firm still.

 

Measure 7: Cut off the redundant adhesive plaster in repair area. With scissors or craft knife, cut Copper Foil adhesive plaster carefully the size that suit, the rehabilitate that finish. Must notice, the solder dot that just fosters cordial relations between states may make PCB restores a function, but saucer, copper cash and connect also won’t follow the circuit previously again board euqally firm.

 

However, this has comparatived marvelous, to someone else a lot of people can regard as the thing that rubbish discards, you gifted however new life.

 

Besides appropriate tool, what to still need?

 

For successful rehabilitate PCB, need a series of fundamental soft, hard skill, include wonderful hand eye to coordinate patience of ability, huge and the attention to detail to wait.

 

Put in a knot the base of a fruit ‘s charge, the most important still is practice, practice, carry out again. Practice needs to expend time and energy with respect to the skill that repairs PCB, but once mastered this skill, you can maintain the interest with larger generation to the electron, find more opportunity by brief explore to numerous development.

 

Netizen experience:

 

@ Aubrey Kagan

Repair PCB needs a variety of soft, hard skill, include wonderful hand eye to coordinate patience of ability, huge and the attention to detail.

 

Still have. . . . . . Do not suffer electronic product to scorch the ability that odour disturbs!

 

What odour is becoming all going to cross transient person to ask “ this? When ” , can accomplish turn a deaf ear to.

 

@ Conrad Mannering

Kayla, hope you can discuss this topic further. I have a senior engineer, he teachs his maintenance group base area shake principle, find destroy a center, change next all everything (the periphery area) that includes to destroy.

 

If one is based on PCB reserve batteries deposited very long period of time, its electrolyte already began leak to explode even, so this batteries is repaired almost not know clearly. If discover a problem a bit earlier, foster cordial relations between states likely. It is on memory board, the likelihood needs to use flexible plied yarn serves as the sheet of jumper to take a line newly. What Aubrey of no less than says, this needs very good hand eye to coordinate ability.