Repairing personal computer power supplies
The main equipment breakdowns occur due to the low reliability of networks, the power supply of a personal computer is in idle mode after the operating system is shut down. The PSU is always connected to the network. Power surges in the network are the biggest danger that lies in wait for your computer in this state.The button to disable the network filter provides the greatest protection in comparison with other functional tasks. In case of failure of a unit that does not have a big name of the manufacturer, expensive repairs will not justify. If you are the owner of an eminent power supply unit with a well-known name of the manufacturer, also with high characteristics, then it is reasonable to save money on replacing a new one and try to repair the failed one yourself.High-power capacitors located on the power supply circuit can maintain high voltage for a long time. If you do not own a soldering iron and see it for the first time, then it would be better to use a computer repair service at home. The power supply has a dangerous voltage for human life. It is necessary to remember about safety when repairing components.We begin repair work: we remove the cover of the unit itself. A significant number of breakdowns are caused by the breakdown of power supply parts. We begin to deal with the soldering of these elements, for these purposes they most often use a braid of a frequency cable, which is leaned against one leg, and we bring a soldering iron with rosin. Solder the small fibers and gradually move away from the board.Neatness will help you solder the radiator elements. The junction tester determines the operability of the transistors. Knowledge of electronics will greatly reduce the work and ring all the legs. If the transistor on which your suspicion has fallen is working, it has 1 leg ringing with 2 others, the conductivity of such a transistor should not be determined when the polarity changes. Ringing the tester is also missing between 2 other legs.Transistors are always checked in one direction. The base with the collector and the base with the emitter are not tested in any way in the reverse direction (we change the probes in places), in two directions the collector with the emitter is not a tester in any way.Components that cause doubt are changed to new ones, they can be bought in ordinary electronics stores or radio markets. Due to the lack of certain components, consultants will choose the right analogues perfectly suited to these characteristics.The test start of the power supply is carried out by installing a load of 12 volts (for example, a car light bulb, or an old hard drive, and the like). "We are bridging the Power-on output" (traditionally green, 4th from the edge of the largest connector) with the mass (next to the 5th output of the black color).If the repair is successful, the fan of the power supply unit must start. It is also worth measuring the voltage on the main connectors. Multi-test equipment will help in this. A voltage of five and twelve volts will prove the correctness of your work on repairing the power supply of the system unit.In case of poor-quality repairs, try to ask for advice on special forums. Traditionally, the guests of such forums help with good advice, suggest what you need to pay special attention to. Buy Cenforce Online: https://wheretobuyinus.com/product/cenforce/ cheap.