If the laptop does not interact with you, what is happening can be many reasons.When when the laptop - black screen, first of all, pay attention to the hardware part of it.For example, the power button does not close the electrical circuit on the motherboard has failed one or more microcontrollers, swollen capacitors, defective unit or a portable power source - battery.
should be noted that these problems do not always require the intervention of a specialist.When you boot the laptop black screen may indicate breakdowns of both hardware and software character.Whatever it was, it should clearly know what could go wrong.
How to recognize the problem and resolve it in a timely manner
When the notebook is visible when you start a black screen and no bit lines, the battery is not powered its components.In this case, you need to put the battery on charge for an hour and a half.
In more serious situations, the battery may be damaged and does not function.If this happens, it is necessary to carefully disconnect by removing the plastic tabs, and then connect the power directly.When removing the battery, first unplug the laptop to avoid possible electric shock.
may also be a reverse situation: the battery is stable, and the power supply has failed.To determine the battery is put on charge.If the mains supply is functioning normally, but the battery indicator "silent", want to check the bulb.
To do this, remove the device from the power socket notebook and, without disconnecting the plug from the socket, close the connector block, and a small light bulb socket 3-5 watts.This action will spend in the worn rubber gloves on his hands.In the absence of light bulb glow, check the cord.Maybe somewhere along the length of damaged insulation, and the internal conductor wires coerced by.This cord must be immediately replaced.Modern power adapters replace the cable allow easy removal of the previous corresponding connector.
However, if they appear damaged wires were found (there is a suspicion of a malfunction of the unit), contact the service workshop.Diagnosis and possibly repair of the internal parts of the adapter should be carried out by qualified experts in the field.
notebook on a black screen.Perhaps not energizes the power button
to check the serviceability of the buttons must be removed the top part of the panel.As a rule, you do not need to completely disassemble the laptop.
Next you need to check that the button is normally energizes and closes the working contacts.Such work should be carried out, or having knowledge of Electrical and skills to work with a soldering iron, or under the supervision of the master repair of electronic systems.
When you turn on the laptop black screen, and the button does not connect right contacts, it is necessary to introduce a similar vypayat and battery.Upon completion of the works do not forget to screw parsed panel.
problems with the motherboard
Another frequent reason that when the laptop screen is black and nothing is displayed - the problem of the screen or motherboard.And if you check the monitor requires specialist knowledge, some elements of the removable motherboard can be consistently disconnected.Then test the functionality of a laptop without an element.
restrictions apply only to the CPU, which is the hardware link.The maximum that can be determined - the lack of adequate thermal grease or chipped central core (chip).It may also be defective teplovyvodyaschy cooler if no cooling water.
