In detail: do-it-yourself acer laptop repair from a real master for the site my.housecope.com.
You can fix most common laptop problems yourself. A collection of articles-guides on electronics repair will help to eliminate various breakdowns and solve a number of problems without contacting a service center.
Microsoft has always worked to protect your personal information. But at the same time, the users themselves can fall into this trap if they forget the set password. Naturally, you can just reinstall the OS, but there are other, less drastic measures. One of the simplest and most common methods is to log in as your user through safe mode and generally remove [...]
If you are faced with a problem when the mouse does not work on a laptop, do not rush to purchase a new input device. Since the design of the mouse is quite simple, in most cases, you can easily identify the cause of the malfunction and fix it. Why doesn't the mouse work on my laptop? Most often, the problem occurs for one of the following reasons: failure of the operating system; failure [...]
Over time, the laptop battery loses its original capacity, which affects the battery life of the device. If your laptop operates on a full charge for about an hour or stops turning on at all without a connected power adapter, do not rush to purchase a new battery, in some cases it is possible to restore the laptop battery yourself. Calibrating the Battery Using a Special Utility If the battery has started [...]
If your device stops responding to pressing the Power button, check that a completely discharged battery is not the cause of the problem. In addition, check the integrity of the laptop power connector, as well as the power adapter. If everything is in order, then the failure of the power button itself may be the cause of the malfunction. Then the question arises, how to turn on the laptop without the power button? If the device [...]
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Problems with the keyboard occur quite often both on stationary computers and on laptops. But if a computer keyboard can be easily replaced with a new one in case of failure, it is not so easy to do this on a laptop and in some cases is financially costly. If your laptop keyboard does not work, what to do in such a situation, what [...]
If during the operation of video games or demanding programs, the computer suddenly turns off, then most likely this is due to severe overheating of the processor and / or video card. In this article, you will find the answer to the question of what to do if the laptop turns off during the game. Why does my laptop turn off during a game? Time does not stand still, and each new laptop model is released [...]
Without exception, all laptops are equipped with a touch panel, which is a pointing input device and allows you not only to control the cursor, but also to perform other actions. With the help of modern high-precision touchpads that support multitouch gestures, users can perform such manipulations as scrolling, zooming, highlighting, calling the context menu with light touches with the tips of one, two or three fingers. But what if, having [...]
Power supplies, or in other words, adapters, not only for laptops, but for other devices in most cases do not have special fasteners (screw connections) for multiple collection / disassembly.Instead, they have a glued case, as manufacturers expect users to treat such items as consumables and simply buy new ones in the event of a breakdown. But it is not […]
If you are faced with a situation where the fan on a laptop is constantly running at full power, making a lot of noise, then in most cases this is a sign that something is wrong with the system. The problem may be related to the failure of the cooling system, the accumulation of a large amount of dust, as well as a strong load on the system, which causes overheating. Solutions [...]
The hard disk is the main data storage on the laptop, and if the BIOS cannot detect it, the operating system will not start, and the user will see a corresponding message on the screen. If, when turning on the laptop, the screen displays Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key [...]
Hello everyone. With this article, we continue to consider topical issues on how to diagnose and fix a laptop breakdown yourself.
This article will be useful not only to owners of Acer laptops, but also to all laptop owners in general. I do not urge anyone to do the repair of Acer laptops of any complexity with their own hands.
Keep in mind that in some cases it is better to trust a specialist. Since there is a risk of making things worse even then, non-warranty repair of Acer laptops will cost significantly more.
Many will simply be interested to know what they pay for at the service center, how to determine the breakdown and fix it.
If a problem occurs, it is necessary to carry out laptop diagnostics and identify the problem. Only after diagnostics can you draw the right conclusions and take the computer to a service center or try to fix it yourself.
Below we will look at the most common problems that can occur with your laptop.
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If the image on the monitor changes color and is distorted, then most likely the problem is in the matrix cable or the laptop matrix itself.
The main symptom of sensor problems is when the image clarity changes depending on the position of the computer screen. By changing the angle of inclination, the image can be better or worse.
If everything is in order with the matrix, then the cause of problems with the image can be video card artifacts ... You can identify problems with the video card without visiting the service center. Remember, there are software and hardware artifacts. Depending on the type of artifacts, the way to remove them differs significantly.
You can fix software artifacts (link above) by reinstalling or updating drivers video card or other software with which there is a conflict.
In case of hardware artifacts, you will need warming up or replacing the video card in the laptop Acer. I would recommend the latter, because rarely after warming up the video card works without artifacts for at least half a year.
Replacing the laptop matrix You can do Acer yourself, but if you have never disassembled a laptop before, then it is better to trust the specialists.
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Quite often, problems arise with charging and powering a laptop. If the laptop does not charge well or does not charge at all, then the problem is most likely in the power supply.
You can identify the problem by the glowing indicator on the power supply. If the indicator does not light up when connected to the network, then most likely the power is not being supplied. You can try to fix the power supply yourself or buy a new one.
In a service center, repairs can cost more than a new one, so do not rush to hand over the power supply for repair. First, find out the cost laptop power supply repair and compare it with the cost of a new power supply unit.
Is the power supply ok? Then pay attention to the laptop power plug. If charging resumes by pressing it, then the problem is in it. In this case, you will have to re-solder or replace laptop power connector .
Not infrequently, problems arise with the laptop battery. The biggest problem is when the maximum battery charge gradually drops. In this case, measures must be taken.
If the laptop is not very old yet, then laptop battery calibration should return the battery to its previous state.
In advanced cases, the battery must be repaired. For more details, read the article - laptop battery repair ... But having compared the prices for repairs in the service center with the new battery for the Acer Aspire laptop, it may be more expedient to buy a new one.
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If liquid gets on the keyboard, it is better to immediately disconnect the computer from the power supply, remove the battery and dry the laptop.
The most important thing is to prevent liquid from spilling onto the laptop motherboard. In such cases, I always recommend contacting the service center as soon as possible. Read more in the article - flooded the laptop keyboard - elimination of the consequences.
If this is not possible, then after drying it will be necessary to carry out cleaning laptop keyboard Acer. Depending on the computer model, the keyboard is removed in different ways, keep this in mind so as not to accidentally break the retaining latches on the laptop when replacing it.
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Change the thermal paste at least once a year and cleaning laptop ... This will allow you to avoid overheating and damage to the video card and processor.
Also make or buy laptop stand to provide better ventilation, which will lower the temperature. Calibrate your laptop battery in a timely manner. This will help you avoid battery problems.
Such simple operations with a laptop will allow you to avoid many problems in the future. Good luck to you!
Previously, having a laptop at home, in addition to an ordinary stationary PC, was considered almost a luxury. Today this is a common thing, but lately one can observe a slight decline in interest in laptops in favor of tablets and smartphones ...
However, it is definitely too early to "write off" portable computers, contrary to all forecasts, but it is a pity to repair them, but sometimes you have to ...
Any technique tends to become outdated and break down. And the more complex it is, the more often it will demand attention to itself. Unfortunately, laptops are no exception ...
- clogging of the cooling system with household waste and (as a result) overheating of the processor;
- mechanical damage to the motherboards and LCD matrices of the monitor as a result of drops or sudden changes in voltage in the network (if the laptop is used as a stationary working PC powered from an outlet);
- chafing or burnout of loops of the keyboard, touchpad and monitor;
- the ingress of liquids into the laptop (as a result of a short circuit, anything can burn out);
- failure of any components (hard drive, RAM, WiFi module, etc.).
As you can see, there can be quite a few reasons for repair. In addition, the need to open a laptop may also be caused by the desire to make a planned upgrade with the addition of, for example, a new RAM strip or a more powerful processor.
To disassemble a laptop at home, we need at least two screwdrivers: a small Phillips screwdriver for unscrewing the screws securing the case and parts, and a thin flat one for neatly opening the case.
Step 1. It is worth starting disassembling any laptop by disconnecting it from the network, turning it over and disconnecting the battery. So, firstly, we will completely de-energize the device (accordingly, we will avoid a short circuit), and secondly, we will open access to the case locks (in some models, a pair of case screws may be hidden under the battery). To remove the battery, you usually need to simultaneously pull the floating clips in different directions and pull the battery towards you.
Step 2. Next, we carefully study the location of the screws that hold the case and keyboard.Usually the latter are marked with the inscription "kbd" and there are from three to seven of them. The rest of the screws (which are not marked in any way) will be case and they will need to be unscrewed in order to disassemble the laptop.
At this stage, the main thing is to remember which screw and where it was, since they come in different lengths and with different thread runs! For this, a special plastic sorter with several compartments would be ideal. However, the cogs can be easily arranged in groups and on an ordinary white sheet of A4 paper. The main thing is that you remember where each of them comes from!
Step 3. When everything is unscrewed, we take a flat screwdriver with a thin sting in our hands and find a place where you can insert it into the gap between the bottom and top covers of the laptop case. We do this carefully so as not to gouge the plastic. When the place is found, push the screwdriver slightly up and down alternately to create a lever. As a rule, after pressing in the right direction, the plastic clips inside are released and the case will begin to open.
In the same way, we go through the entire perimeter of the case with a screwdriver. As a result, we should get a neatly removed undamaged bottom cover and access to the motherboard and laptop parts.
In order not to damage the cover, you need to remember one single rule: "DO NOT APPLY HIGH FORCE when pushing on the screwdriver."
Step 4. After removing all large parts, carefully inspect the motherboard and unscrew the screws that remained unscrewed. At the same time, it is not necessary to unscrew the screws of the radiator that cools the processor (unless you are going to change it or lubricate it with new thermal grease).
Step 5. When everything is unscrewed, the last step remains - disconnect the loops.
In our experimental netbook, after unscrewing all the screws that held the motherboard, the only "fasteners" were the cables:
- monitor cable;
- sound loop;
- touchpad loop;
- keyboard loop.
The easiest way is to turn off the audio and video loops. They are simply pulled out of the socket with a flat screwdriver (pulling by the wires is undesirable). Gently pry on alternately on both sides and slowly pull it out.
The situation with the touchpad loop is a little more complicated. It is pressed by a plug that needs to be pulled out. However, this plug has two small tendrils on the sides that hold it in position. So as not to break these antennae, first slightly drown them, and only then pull them out.
The last step is to disable the keyboard. In principle, this can be done without disassembling the entire laptop. It is enough just to unscrew the screws marked "kbd" and the keyboard can already be pulled out. First, you need to pry it off with a thin screwdriver from above. Then, when the top edge is free, slightly pull the keyboard upward until the bottom edge pops out of the tabs. Now, everything is held only by the cable, which must be disconnected from the motherboard:
The fastening of the keyboard cable may be different on different laptops. These can be plugs (as described in the case of the touchpad), pressure plates or simple plugs. In order to properly disconnect and not break, always use a search query such as "how to remove the keyboard on a laptop (your model)".
In the case of the Samsung N145 netbook, we are dealing with a tricky clamping mechanism that is very similar to a regular plug. To open this mechanism, you just need to pull it up, after which the cable will be released and we can pull it out 🙂
When the cover is safely removed, you can take a closer look at the internal structure of the laptop:
Inside, the following components will definitely be present:
- motherboard, to which all parts are attached;
- hard drive (usually 2.5-inch SATA or SSD);
- one or several strips of RAM (in modern systems, most often DDR3 of a reduced form factor);
- a processor with (most often) an air cooling system under a copper radiator;
- speakers.
Optionally may also be present:
- video card (usually in laptops of middle and higher price categories);
- WiFi, Bluetooth, NFC and / or infrared module for wireless connection of peripherals and devices;
- various expansion cards, such as card readers, additional USB 3.0 or FireWire ports, etc.
Already at this stage of disassembly, we have access to almost all components that can be replaced, so we can no longer disassemble. Just change the part that requires it and you can collect everything as it was.
Before disassembling the laptop completely, please note that in some models, special revision holes may be provided on the back of the case to access components such as RAM, hard drive, expansion ports, etc. These openings are usually covered with a small cover that attaches to the case with just one screw and allows easy access to the part without having to open the entire case.
The memory card itself can be held in laptops either using a special clamping bar (which needs to be pushed aside), or (as in our case) due to two clamping metal plates on the sides. The latter are rigidly fixed, but can slightly bend away from the memory bar. Accordingly, to release it, you must simultaneously squeeze out both pressure plates. The board is inserted back with light pressure until the latches click.
The BIOS battery may be of interest if you begin to notice that your laptop does not turn on the first time or even stops loading beyond the startup black screen. In this case, it may well be that the problem is in a dead battery that needs to be replaced.
Alas, replacing the BIOS battery in a laptop is much more troublesome than in a regular PC, since it is not connected directly to a special socket, but through an adapter. The easiest, but also the most expensive way is to buy a similar fully assembled battery with an adapter and an adhesive part to fix it on the motherboard. But there is also a more budgetary solution :)
If there is no ready-made battery or it is indecently expensive, you can make it yourself 🙂 To do this, remove the old one and free it from the black insulation to gain access to the wiring. Next, take a new battery of the same type and attach the removed wiring to it (red is usually a plus, and black is a minus).
To keep the wires and to insulate the battery itself, it is best to place the resulting structure in a heat-shrink tube of a suitable diameter. So we will get an almost perfect adhesion of contacts without soldering and an appearance, almost as in the original 🙂 It is easiest to glue the resulting structure to its rightful place on thin double-sided tape.
We take a close look at our motherboard for the screws that still hold it in place. Two of them are found on the hard drive brackets. We unscrew them and carefully take out the hard drive itself:
In laptops, hard drives are usually attached to the motherboard using a special "basket", which is fixed to the case with four screws, and connected to the motherboard using a special ribbon cable. To, for example, replace the hard drive with a new one (more productive or capacious), you just need to disconnect (again carefully) the cable plug from the old one, after which, when the old hard drive is already in our hands, remove it from the "basket" and replace on new.
Another screw that might prevent the motherboard from being removed can be located on the WiFi wireless module. Even if the retaining screw is not there, then this module will still have to be disconnected, since two wires go from it to the antenna, which is located in the display case.
When assembling, we repeat all our actions in reverse order.This is where the photos that you took during disassembly (if you took them) and correctly sorted screws can come in handy. When you put on the case cover, do not rush to immediately screw it on. Tighten only the screws holding the keyboard and try to start the laptop.
If the operating system boots, then try turning on the regular Notepad and test the keyboard's operation by typing all the letters on it one by one. And only if everything works as it should, you can turn off the laptop and tighten the rest of the screws. Congratulations on your successful build!
As you can see, everyone can disassemble, replace the part and reassemble their laptop!
If you work carefully and thoughtfully, then everything will work out for you!
Car battery (AKcumulative Bbattery) is one of the most important parts of a car. The battery provides electricity: electric lamps in the headlights, the instrument panel and interior lights, the electronic ignition system of the car, the fuel pump, the car radio and other parts of the car, as well as the most consumed load source - the starter when starting the engine. Normal operation of all vehicle components is possible only with a properly operated battery. It must be serviced and charged on time.
If you have plastic windows installed, it is warm, beautiful and hassle-free. High-quality plastic windows installed in compliance with the technology will last for a very long time. But ... it so happens that suddenly it began to blow from somewhere, the handle is jammed, the seal is not tightened, etc. What to do? Look for a master or figure out the reason yourself and eliminate it yourself!
An LED, like an ordinary light bulb, cannot be directly connected to a power source. To prevent the LED from failing, it needs a current limiter. The easiest way to connect an LED is through a resistance, but there are times when this is not possible. Read more about drivers and ways to connect LEDs in the article below.
A failed laptop does not always need to be taken to a workshop. Some minor faults can be repaired by yourself, and the professionals will advise what you should pay attention to.
The situation is aggravated by the trend of creating thinner and lighter laptops: instead of standard elements, special or soldered to the motherboard components are used, the screws loved by repairmen are replaced with glue, and the lightest design is rarely durable. That is why many laptop owners do not dare to repair their devices on their own. Considering the significant costs and significant repair time performed by the manufacturer's service department, you will often think about purchasing a new device.
In this case, many faults can be eliminated independently or contact one of the many workshops that can be found in any city via the Internet. If a workshop has few negative reviews, it might be worth checking out its website. If the conditions suit you, then it makes sense to call the foreman or come to the office yourself: it is easier to explain the essence of the malfunction in personal communication, when you have the opportunity to see the interlocutor.
The loyalty of the workshop to the customer is evidenced by free diagnostics or provision of preliminary cost estimates. If the workshop takes payment for them, then at least it should be taken into account in the subsequent calculation of repair work. We visited the Zeklink workshop in Munich, looked at the work of the professionals and now reveal the best tips for home repairs.
Typical faults, diagnostic methods and chances of repair are listed in the table above. If, for example, your device does not work at all - there is no image, the cooler does not make noise, and the LEDs do not light up, the reason may be a faulty power button or problems with the power supply system (battery / connector). Whether the problem can be solved at home or whether you have to carry the laptop to the workshop depends on the cause of the problem.
The tasks facing the workshop are very diverse, from refurbishing a five-year-old retailer-branded laptop that a user has customized and still wants to use, to a near-new MacBook Pro that has been treated to a latte. and which the owner needs in the shortest possible time.
The manufacturer's service department is often slow to act, and the warranty may not work. “The most common failures are hard drives, displays and hinges,” says Padrek McGrath, owner of the Zeklink workshop. Nevertheless, some people come to the workshops, for example, because of a faulty battery, which is very easy to replace yourself.
Finding the right service workshop
The advantage of a workshop located in your area is that you get an immediate picture of it, and a technician can directly inspect the device in a personal conversation and determine the problem. In addition, you do not have to pay for shipping and the repair time is reduced.
Michael Tucempski, Chief Technology Officer at Zeklink, explains that there is a huge difference between the propensity of laptops to malfunction and their repairability: “Business devices such as Lenovo ThinkPad, Dell Latitude and HP EliteBook, as well as Apple MacBook Pro released before 2015 years, are durable, maintainable and have established channels for the supply of spare parts. "
On the other hand, there are problems with a whole series of devices: for example, the Asus UX31, which has excellent performance, is very thin and prone to various malfunctions. Also, Lenovo laptops with new flat connectors (as opposed to standard round connectors) and Samsung X900, which often fail display hinges, often come to workshops.
Any laptop that ends up in Zeklink is logged with a precise description of the problem. Let's consider a typical problem of a four-year-old laptop: the cooler is constantly working, but the system "slows down" and hangs and reboots when performing resource-intensive tasks. It is likely that the cooler is clogged. Cleaning it is similar to a cardiac surgery, as it requires completely disassembling and reassembling the internal mechanisms.
When a computer lands on the desk of Chief Technical Officer Michael Tucempski, he starts in much the same way as a layman. However, he has fifteen years of rich experience behind him and thousands of refurbished laptops. In addition, he has a large arsenal of tools and measuring devices on his "workbench". The workplace is the first thing to pay attention to when carrying out repairs at home: the surface must be free of dust (no cloth tablecloths) and well lit.
It is recommended that you touch the radiator, window handles or similar objects several times before and during repairs to avoid damaging the electronics from static electricity.Along with the appropriate set of tools (Phillips screwdrivers of various sizes, guitar pick or flat plastic spatula), a small amount of thermal paste is also required.
Determining the method and sequence of dismantling, a professional relies on his own experience, which you, as an amateur, do not have. Therefore, before starting the repair, it is necessary to collect as much information as possible. There are video tutorials available on YouTube for repairing a wide variety of laptop types, which can be found for model name and disassembly. If there are no instructions, approach the repair with special care: to dismantle the case, remove the bottom cover and the battery, remove all visible screws that hold them in place.
Locate the screws under the rubber pads (eg support feet). Padrek McGrath recommends that you remove all parts together with the screws that secure them, and place them on the work surface separately from each other, as well as record the removal sequence.
Michael Tucempski is forced to correct again and again such amateurish mistakes as a result of an unsuccessful attempt to open the device, such as deformed screws: even if the screwdriver is only slightly larger than the slot, it easily twists and destroys the screw head.
In such a case, the professional tries several methods in sequence: a special tool for unscrewing the screws, soldering the second head, and finally drilling out the screw. Since the screws in laptops are tiny, this is just a piece of jewelry. To prevent this from happening, Tuchempsky advises: use a suitable screwdriver and never a screwdriver. Also, do not press hard: rotation requires a gentle dose of force.
Often, along with the screws, the housing elements are additionally held by latches. An experienced specialist will quickly figure out which of them he should squeeze out first, and what kind of effort they can withstand without collapsing, while the amateur is left to act very slowly and carefully. It often requires inserting, for example, a credit card between the latches that have already been squeezed out in order to prevent them from snapping into place during further dismantling of the case.
Damage caused by liquids leaves traces of corrosion that can be removed by workshop technicians in some cases (depending on material)
Depending on the laptop model, you need to remove either the bottom or the keyboard together with the surrounding panel. When removing the keyboard, there is the following danger: after unscrewing the screws and unscrewing the latches fixed with the screws, some customers of the Zeklink workshop remove the keyboard too quickly and damage the ribbon connecting it to the motherboard.
So, after the keyboard fasteners are released, it must be carefully lifted, then the position of the cable is determined and properly removed from the connector. It has either a latch that must be pushed upward from the cable, or a connector along the cable. In this case, remove the ribbon cable from the socket using flat tweezers. Similar actions should be performed with respect to the touchpad cable.
In order to gain access to a clogged fan, it must be removed from the motherboard. In some laptops, it is located on the inaccessible side of the motherboard, as a result of which it must first be removed. After that, the heatsink can be easily (and carefully!) Unscrewed and removed from the CPU and GPU. To remove old thermal paste, the professional also turns to the usual home remedies: cotton pads, moistened with pure alcohol, if necessary. If the heatsink is really dirty, you can see a fringe of dust that lays between the fan and the cooling fins.
In most cases, they can be accessed by opening the heatsink housing.It is good if the case is connected with screws; it is bad if rivets or glue are used: in this case, you will have to make a little effort to remove it for subsequent cleaning of the dust "plug" with tweezers and blowing the plate using a can of compressed air or a hand-held vacuum cleaner. Then the fan housing must be glued back, depending on the material, using instant or two-component glue.
Anyone who was able to overcome all the steps described will easily cope with the assembly. In this case, one part is again attached to the other in the reverse order.
After each step, non-professionals must make sure that there are no screws or loose ends of the cables, otherwise they will face unpleasant surprises after the repair is completed. When installing the heatsink, apply a small amount of thermal paste to the CPU and GPU (if necessary). It will be evenly distributed when pressed during installation.
Cleaning a clogged fan is indeed important and costly, but it is not the only problem. The most common "real" defects in the practice of the Zeklink workshop include malfunctions of hard drives - from a few bad sectors to complete unusability as a result of the so-called "head crash". Michael Tucempski primarily captures an image from a still working hard drive. This practice before doing any home repair work is also a good idea; it is implemented using a program to create an image.
For standard devices and business notebooks, replacing the hard drive is a breeze, as in most cases the storage medium is located under a removable cover. But in ultra- and chromebooks with a specially fitted SSD-drive or a soldered eMMC-drive, you need to install either an original spare part from the manufacturer, or even replace the entire motherboard.
Repairing mechanical damage is a difficult task. Most often, professionals are faced with broken displays or broken display hinges. Defective panels can be replaced with replacement parts that professional repairers purchase from eBay, other online retailers, or directly from Chinese manufacturers. The biggest challenge, however, is finding a panel that is exactly the right fit for a given model.
In general, the work carried out on the laptop display is rather difficult, since many elements are located in the extremely small space of the thin cover - for example, fasteners, cables, backlighting elements and wireless transmitters. First of all, if the display is located behind a glass plate, dust should not get between them, as otherwise it will cause damage in the future. If this breaks the flat display cable to the motherboard, in most cases no help is possible as it is extremely rare to find a replacement cable.
Bottom line: Working with the display is best done in a workshop. The same goes for a common and misdiagnosed problem: faulty display hinges. The hinges are made of metal and will not break, but they often break from the soft plastic base plate to which they are attached with multiple screws. The Zeklink workshop specialists again glue the screw threads to the plastic using a high-strength two-component adhesive, then install the hinge and, after tightening the screws, fix them with glue.
After every repair, Michael Tucempski turns on the computer and checks all the hardware. If, for example, the sound / headphones, USB ports, or hardware buttons are not working, they are probably not properly connected. It happened in a workshop or at home - it doesn't matter, everything should start over. For this, there is one last piece of advice from a professional: if you can't get ahead in your work, you need to postpone it and continue the next day with a fresh mind.
PHOTO: Juliane Weber / CHIP Studios; CHIP (2); Juliane Weber / CHIP Studios (2); Zeklink
We begin any disassembly of a netbook or laptop with removing the battery.
We start disassembling the display by removing the glued plugs near the hinges.
Under them bolts, which need unscrew... We do the same with the left side.
Then we lift the front cover near the hinges and snap off perimeter latches.
This is how it looks latch after disassembly.
To free the matrix of the netbook, you need unscrew 4 bolts.
And disconnect webcam train.
This is how it looks matrix behind.
Behind the matrix there are two black squares on the sides - this is microstrip Wi-Fi antennas.
Peel off the sticker, carefully pull out the matrix cable.
Peeling back the self-adhesive foil, we see inverter board.
From the inverter comes out plume to the bowels of the matrix itself.
On the right of the inverter, we see two variable resistors, which, as it seems to me, regulate brightness and operating mode of the inverter.
First of all, it is better to start external examination with display loop contacts... Here, as we can see, on the right is darkening and carbon deposits. Most likely, this is the reason for the disappearance of the backlight. You can check for sure simply by cleaning the contacts. First you need to take a soft eraser, cut it off at an acute angle and wipe off the carbon deposits on the contacts.
Then you need to thoroughly wipe everything with isopropyl alcohol or medical alcohol, unless of course you feel sorry for the latter ... It will also not hurt to wipe it with alcohol pins in the connector itself - but without fanaticism - everything is too small. I do not advise you to climb there with an elastic band, because pieces of elastic can remain in the connector, which is very unpleasant - poking around in the connector.
We check the display backlight after such a purgatory. If within a few hours the malfunction does not appear, then you can safely assemble the display in reverse order.
When you collect, do not forget snap the display case below the hinges.
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Successful repairs. Soldering Master.
