How to maintain laptop interface? We often say that three points depends on repair and seven points depends on maintenance. This sentence applies not only to cars, but also to many digital products, such as notebooks. Everyone usually has more opportunities to use laptops, whether for work or entertainment. Although many friends will give their laptops a thorough cleaning after using them for a period of time. However, many friends ignore the notebook interface. I would like to remind everyone, Don’t forget the corners when maintaining your laptop.
In the maintenance process of notebooks: the screen has special film, detergent, cleaning cloth and other maintenance tools; the keyboard has keyboard film, leather tiger (air blow); The processor inside the notebook can also enjoy the service of applying silicone grease; only the external interface of the notebook computer has the worst "treatment" - high work intensity (frequent plugging and unplugging) and harsh working environment (direct exposure to the external environment) ), not taken seriously (even if the laptop is cleaned, the interface is often forgotten).
To understand the maintenance knowledge of laptop computer interfaces, let’s first take a look at the interface failures that are most likely to occur on laptop computers:
1. USB interface failure
This is the most common failure when everyone uses the laptop interface. First, we have to determine whether it is a problem with the laptop itself or the USB device. This is very simple - we You can use other USB devices to test whether there are any problems with the computer. If it is a problem with the laptop itself, it may be a software problem such as virus or driver, or it may be a hardware problem.
If it is a hardware problem, it may be that the USB data cable is blocked or has poor contact; it may also be an internal problem with the USB board or even a problem with the notebook south bridge chip.
2. Power interface failure
Many laptop users have problems such as the machine being unable to light up or the battery being unable to charge when an external adapter is connected. This is a problem. It may be caused by a loose power connector or a damaged adapter - of course it may also be caused by a problem with the laptop battery or motherboard chip.
3. VGA/HDMI interface failure
When many laptops use the VGA interface to connect to a TV or LCD monitor, problems such as a black screen on the TV/monitor often occur. One possibility is that the output screen is not switched, and the screen can be switched through the Fn function key combination of the notebook. If the output screen is the notebook screen, then the external monitor must be in a black screen state. The second problem is resolution incompatibility. VGA is an analog interface and supports up to 1920&ti.mes;1080 resolution. If the TV/monitor does not support 1080P, black screen and other failures will occur.
When using the HDMI interface of a laptop to connect to a TV, problems such as the inability to switch the screen will also occur: This requires checking the connection of the HDMI cable and the TV input method - check whether the HDMI plug is inserted in place and whether the TV is properly connected. The input mode of HDMI has been adjusted, and pay attention to whether the HDMI interface corresponds. For example, if it is connected to the HDMI 2 interface, select HDMI 2 on the menu. There may also be a quality problem with the HDMI cable: the HDMI cable may be a knockoff, and the metal wires inside the cable may have insufficient quality and excessive resistance. In addition, the shielding layer cuts corners, the cable has poor anti-interference ability, and there is no shielding magnetic ring design.
Even if you purchase an HDMI cable produced by a regular manufacturer, be careful not to purchase an HDMI cable that is too long. Long lines will cause signal attenuation. Before purchasing, measure the length of the HDMI cable you need. It is best to choose one within 2 meters.
Laptop interface maintenance guide: In fact, the maintenance of the interface can be summarized in a jingle: "Waterproof, dustproof, anti-static; insert lightly, pull out lightly, and cover it frequently" ".
1. Waterproof
First let’s talk about waterproofing: In fact, “water” has always been the “enemy” of laptop computers. Here The "water intrusion" is mainly caused by tea and drinks accidentally spilled on the keyboard in daily life, and also caused by sudden heavy rain on the laptop. Many notebook interfaces cannot be used. This is often caused by water in the notebook computer - leakage from the keyboard into the motherboard, short circuit of the power control chip of USB and other interfaces. What's more, water intrusion causes the laptop south bridge chip to be damaged. Damage, affecting the normal use of the interface. In addition, if the water entering the interface is not dealt with in time, it may cause rust and lead to poor interface contact.
2. Dustproof
Dustproofing of the interface also needs attention: in fact, dust is a terrible enemy for every electronic original. , some thoughtful manufacturers will design rubber jackets for the ports on the machine. When not in use, they can be used to cover the ports to resist foreign invasion. For those models that do not have these devices, the only thing left is for the user to pay more attention to cleaning.
3. Anti-static
In the dry northern climate, you need to pay attention to the problem of static electricity when using a laptop in winter: if you find any static electricity when taking off your clothes, The crackling sound is touching the notesIt is best to wash your hands before using the computer to avoid transferring static electricity to the laptop. In addition, it is best not to put U disks, MP3s and other electronic products in the pockets of cotton-padded jackets or sweaters in winter. Static electricity in these places is very strong, which can easily damage not only your U disks, MP3s and other devices, but also your laptop interfaces.
4. Plug and unplug gently
Incorrect plugging and unplugging methods are also the main culprits that cause damage to notebook interfaces: the plugging and unplugging movements must be smooth and stable. . Stableness means that it is forbidden to shake when plugging and unplugging the connector, which will not only cause the connector to loosen, but also may cause the pin to break if it is a pin connector; while fixation is mainly for bolt-fixed interfaces, such as serial and parallel ports and VGA If the interface is not firmly fixed and becomes loose during use, there is a high risk of burning the interface.
Damage to the pins of the interface is generally caused by excessive force when inserting or connecting the wrong device. Therefore, when connecting the device, it is best to first check whether the interface matches. If you feel If there is obvious resistance, you need to check whether the pin is bent to avoid bending further and causing the pin to break. If the pins are obviously bent, you can straighten them with tweezers while the phone is turned off. Remember to turn off the phone first, otherwise the short circuit of the pins will cause the interface circuit to burn out.
5. Multiple coverings
The so-called "multiple coverings" are actually a helpless protection measure: some notebook manufacturers have already designed this for notebooks. The interface protection device can be covered when not in use; however, the interfaces of most notebooks are still exposed. At this time, some necessary anti-rust measures need to be taken. The simplest method is to apply a little car wax on the surface and wait until it dries. After that, it is a good anti-rust agent; it should be noted that the wax can only be applied to the metal part of the interface surface, not to the pins of the interface; of course, it would be better if you can find a special interface protective cover.