Fault Case 1: mis-operation
Failure of some electronic products is often caused by mis-operation, when it is easy to make slight mis-operation, such as press wrong key, the output spectrum of the device will quitened or even broken down, even if the device can not be used again.
For example, in the circuit of a computer, all of the electronic components are connected according to certain regulations, and every electronic part runs accurately at regular intervals. However, if some components are connected incorrectly or some parts are not connected with each other, there will be a short circuit, which will make the computer fail to run. This situation can often be found out by professionals, and it needs professional to check and repair in order to save the whole circuit.
Fault Case 2: Poor Connection
Poor connection, refers to the fact that two parts of the device fail to contact normally. This fault most likely happened when the two connecting ports were misplaced or lack of good connection, which resulting the fact that two components fail to send signals or power to each other, leading to the device to fail working.
For example, when repairing the computer, if the connection of the board is not careful observed know what connectors are used in which interface, there may be a broken connection between the interface and the motherboard when the motherboard is connected with the chip. This poor connection may cause the computer to be seriously damaged or even unable to run.
Fault Case 3: Overload
Overload of some electronic products is also a common cause of failure. This is because when an electronic product is overloaded, the circuit cannot be connected properly, or the voltage is too high, leading to various faults like flash fire, power failure, transformers burn out and so on.
For example, when using the computer, if the CPU, the GPU and the power board are not adjusted properly according to the indicated specifications, the computer will become overloaded, and the whole system will be out of order. It usually takes professionals to check and diagnose, and cleaning the circuit lines, resetting the BIOS and restoring the system can resolve the problem.
Fault Case 4: Aging
The aging of electronic products often affects the stability of equipment performance and causes equipment failure. Usually electronic products, from the date of manufacture date or date of arrival in the market, after a period of time, the components of the products, namely printed circuit board and solder stand, will run for a long time, resulting in oxidation of metal and other components, causing device failure.
For example, when using the laptop, if several IC chips of the laptop are aged due to the oxidation of metal, it may cause the laptop to fail to work and cause various problems, such as the black screen, no sound, and no display. In this case, it needs professionals to check the computer carefully and repair the device.
Fault Case 5: Components Damage
The components of the electronic equipment easily be damaged due to its fragile body, which causes the device fail working.
For example, when the monitor is brought back to use after a long-time storage,it may have some serious fault which cannot be opened or used, it may be caused by the graphics card of the monitor damaged, resulting in system crash. In this case, it needs professionals to replace these components, reconnect the circuits manually and make adjustments for the device.
Fault Case 6: Static Electricity
Static electricity is help to reduce the lifetime of electronic products, it will mainly cause short circuit of hardware devices, usually damaged components or burnout the printed circuit boards.
For example, if the monitor or laptop is used in a very dry or humid environment, or if the electrostatic is not discharged after touching the sensitive components, it will cause the components to fail working and the device being unable to use. In order to fix this issue, experts should first of all check the electrostatic of the device and then repair the damaged components and reconnect the circuits.
