A monitor is a device for displaying an image that a computer transmits. Using it, work is carried out with the named device: watching movies, playing games and other various manipulations.
Cause of monitor problems
There may be several reasons for the monitor not turning on the first time: a computer malfunction, a faulty cable or device.
To eliminate the wrong options, it is worth trying to diagnose vulnerabilities. To begin with, it is worth checking the connector through which the cable is output to the monitor - its appearance should not cause suspicion. These outputs are on a discrete graphics card or motherboard. The serviceability of these devices also does not interfere with checking.
A defective monitor cable may cause the device to malfunction. Physical impact is important. Constant kinks or pinches of the wire can cause the monitor to not turn on the first time. It is also necessary to check the integrity of the connectors and their connection on both sides.
When it comes to the display itself, there can be many reasons why the monitor does not turn on the first time.
Graphics card and motherboard
The discrete card has various connectors for connecting the screen and virtual reality equipment. When connecting to the monitor, it doesn’t matter which cable the device manager displays which interface the monitor uses. Information is also displayed in the settings of the video card.
If the graphics adapter is built-in, then the connector for connecting to the device is located on the motherboard. If there are problems with these two components, the problem will be expressed in the fact that the monitor does not turn on the first time.
Monitor power supply
When the system unit makes a characteristic sound when turned on, the fans start up and the hard drive starts to work, and the monitor does not turn on and the power lamp blinks, it is most likely a bad connection with the system unit. When the power indicator does not light up, the problem is with the power supply.
Together with the missing indicator, you can notice the intermittent operation of the monitor, which consists in spontaneous shutdown, blinking of the screen and so on.
Most often, the power supply fails due to a voltage drop in the network. Also, most likely, the monitor undergoes constant overheating, which leads the power supply to an inoperative state.
Switching power supplies are protected against voltage drops and short circuits in external circuits.
Capacitors
On the display power supply there are capacitors that often fail and are the reason that the monitor does not always turn on the first time. If you have experience in the field of analysis or repair of liquid crystal devices, then you can conduct a visual diagnosis.
First you need to open the back of the monitor and remove the board. On examination, you may find that the capacitors are swollen and barrel-shaped. Dismantling them will not be difficult if there are appropriate tools and skills.
Now you need to purchase capacitors that absolutely coincide with the faulty in characteristics. To do this, look at the markings, which are located vertically. If it’s hard to see, you can use a magnifying glass. A mistake in choosing can be expensive, even to the point of having to buy a new monitor.
When a fully charged capacitor is purchased, you can proceed with its installation. To do this, turn off the monitor and wait 30 minutes for the remaining capacitors to discharge, but it is better to leave it off all night.
After the capacitors have lost their charge, it is necessary to determine the location of the plus and minus, and also not to confuse them when soldering.
As tools you will need a soldering iron, tin and a capacitor. The tin is heated with a soldering iron and applied to the place where the old capacitor stood, after which the new capacitor is replaced.
Thus, you can spend almost ten times less money on repairs than on after-sales service. Again, if the appropriate skills are not available, then you should seek help from a service center, where an experienced specialist will provide diagnostics and a full repair of the equipment.