Cleaning the imac 27 matrix from soot. Removing dust from under the glass of a thin iMac. Cleaning the iMac Sensor

The Mac Profi Service Center specializes in cleaning matrices in the iMac. When you need to clean your iMac sensor:

• Dust and soot on the surface of the matrix. The problem appears when iMac overheats, excessive dust. If this happens, cleaning the iMac sensor will fix the problem.
• Fingerprint marks on the surface of the iMac matrix. Traces of prints appear as a result of mechanical intervention, in this case cleaning the matrix will fix the problem, the matrix will look like new.
• Smudges on the surface of the iMac matrix. The problem can be caused by both mechanical tampering and a malfunction of the matrix. In 50% of cases, you do not need to change a matrix with such a malfunction; it will be enough to clean it.

How to clean the iMac matrix

• To begin with, the craftsmen disassemble the equipment and remove the matrix.
• Then, the protective cover is removed and access to the matrix board is opened.
• After removing the matrix itself, we get access to all places in which there may be contamination.
• Further, all the dirt is cleaned out using special tools that our service center purchases from official suppliers.
• The surface of the backlight reflector and the surface of the matrix glass are cleaned.
• The equipment is assembled in the reverse order.

It should be noted that cleaning the iMac matrix is ​​carried out in a clean sealed room and as carefully as possible, which prevents dust from entering the matrix layers.

IMac Matrix Cleaning Warranties

After cleaning, the assembled iMac is transferred to the quality control department and checked for serviceability - the specialists of the MacProfi service center pay due attention to the property of their customers and, therefore, in the end you get a high-quality result at reasonable prices. The service center provides a 3-month warranty, during the warranty period, if dust gets into the iMac matrix, we will re-clean it free of charge.

Knowledge base. Ask a question about Apple repair to Mac Pro specialists.

Fair, not overpriced or understated. There should be prices on the Service website. Necessarily! without "asterisks", it is clear and detailed, where it is technically possible - the most accurate, final.

With the availability of spare parts, up to 85% of complex repairs can be completed in 1-2 days. Modular repairs take much less time. The website lists the approximate duration of any repairs.

Warranty and liability

Any repairs must be guaranteed. Everything is described on the website and in the documents. The guarantee is self-confidence and respect for you. A 3-6 month warranty is good and sufficient. It is needed to check quality and hidden defects that cannot be detected immediately. You see honest and realistic terms (not 3 years), you can be sure that they will help you.

Half of the success in Apple repair is the quality and reliability of spare parts, so a good service works with suppliers directly, there are always several reliable channels and your own warehouse with proven spare parts of current models so that you do not have to waste extra time.

Free diagnostics

This is very important and has already become a good form for the service center. Diagnostics is the most difficult and important part of the repair, but you should not pay a dime for it, even if you do not repair the device as a result.

Repair in service and delivery

A good service values ​​your time and therefore offers free shipping. And for the same reason, repairs are carried out only in the workshop of the service center: correctly and according to technology, it can only be done at a prepared place.

Convenient schedule

If the Service works for you, and not for itself, then it is always open! absolutely. The schedule should be convenient so that you can catch up with before and after work. Good service works both on weekends and on holidays. We are waiting for you and working on your devices every day: 9:00 - 21:00

The reputation of professionals consists of several points

Age and experience of the company

Reliable and experienced service has been known for a long time.
If a company has been on the market for many years, and it has managed to establish itself as an expert, people turn to it, write about it, recommend it. We know what we are talking about, since 98% of incoming devices in the SC are being restored.
We are trusted and passed on by other service centers for difficult cases.

How many masters in directions

If several engineers are always waiting for you for each type of equipment, you can be sure:
1. there will be no queue (or it will be minimal) - your device will be taken over immediately.
2. You are giving Macbook repairs to an expert in the field of Mac repairs. He knows all the secrets of these devices

Technical literacy

If you ask a question, a specialist must answer it as accurately as possible.
So that you have an idea of ​​what exactly you need.
They will try to solve the problem. In most cases, the description tells you what happened and how to fix the problem.

Starting in 2011, users of the (previous generation) iMac began to see a very unpleasant picture on their displays: the image was covered with a light “haze” around the perimeter, messages about “dust and soot” under the iMac glass began to appear on forums and social networks. But the most offensive for the owners of apple monoblocks was, having come to the service center, to find out that the dust did not fall under the protective glass and not on the surface of the matrix, but inside: between the active layers of the display, standard cleaning in this case was not enough, many centers suggested changing the display to a new one, which, however, did not save from the recurrence of the problem after a few months or a year ...

The trouble became typical, and soon experienced engineers with their hands growing in the right direction mastered the technology of complete disassembly and cleaning of iMac matrices, which was much cheaper and (subject to additional sealing of the cleaned matrix) more profitable than replacement.

With the release of the new slim iMac line in 2012, everyone was amazed by the unique design and performance of the devices, and power users looked at these all-in-ones with hope also because now the iMac was equipped with a new generation display module, it lacks a removable protective glass, it glued to the matrix, just like your iPhone.

For a long time, the matrix was considered completely non-separable and impervious to dust, but since about mid-2013 the nightmare of all old iMacs has returned: a large amount of dust gets into the bottom of the display (especially around the edges), which spoils all the pleasure of using one of the best displays in the world.

Our friends from the MacPlus center after another “dusty” iMac decided to invite us to their place, told in detail and showed that Apple repair is not only a modular replacement, even the officially maintenance-free display of a 2012 iMac can be disassembled, removed all dust and prevented its reappearance on the screen. Our colleagues have shared with readers detailed instructions on how to save yourself from such problems.

First, of course, you need to remove the display module. It is attached to the body with double-sided tape. The factory uses a professional tape produced by 3M, so we do not recommend that you be independent and use exactly the same one when reassembling, because adhesive tape is the only thing that keeps your dear display from falling in every sense.

Around the perimeter, the display module is glued with a protective fabric tape, which, according to the developers, was supposed to protect the weak points of the structure from dust penetration.

Under the tape are the fastening screws that hold the main body and the light-scattering layers of the backlight system; some of the screws are located under the protective panel of the decoder board (right side of the illustration below). It is worth unscrewing them very carefully, since damage to the film loop or elements on the board itself will require much more complex repair or replacement of the display.

After removing the mounting screws and protective elements, you can carefully separate the active matrix layers from the main body of the display module.

Now you can clearly see the dust that has collected between these components.

Please note: dust enters the iMac matrix (in the overwhelming majority of cases) under the influence of its own cooling system, in the same places: the photo below clearly shows a gap in Apple's defense: what can we say about the smallest dust particles.

When cleaning older generation displays, it was very convenient to use a compressor or at least a special cleaning roller, similar to a clothes cleaning tool, but with a softer surface. Colleagues did not recommend using widespread compressed air cylinders (sold in "computer supermarkets"), because condensate forms in them much more often than in the containers of a professional compressor, which can get in the form of small drops of moisture not only on the active layers, but also to the top of the backlight layers, from where it will be very difficult to remove them without leaving a trace.

Now, good quality textiles are more suitable for dust removal, as you might have guessed, with the use of microfiber ("microfiber"), the main requirement is perfect cleanliness (it is better to take a new napkin straight from the package) and the minimum fiber size. Special napkins from Defender cope with this task very well, but there is no fundamental difference.

Especially seriously the engineer from MacPlus, who cleaned the matrix with us, asked to treat the backlight itself, that is, to the light-scattering layers: by default they are perfectly aligned, but if you accidentally touch them during cleaning, you will hardly be able to achieve this accuracy again, therefore before starting the cleaning itself, we additionally secured the layers with ordinary technical clamps (they can be found in “Household goods”, on radio markets or in the same “Chip-and-Dip”).

After making sure that not a single speck of dust remains, we reassemble the display module and put it in place. Beforehand (even before you tightened all the screws into the display case), it is recommended to turn on the screen and check if there are any small debris or dust left on it, since it is much more difficult to replace defects in the off state.

After making sure that everything is in order with the display, we finish assembling it.

A few more minutes - and we got a “new” thin iMac with a perfectly clean matrix, without any signs of opening. As you can see, there was no need to change it. And is it worth buying a new, far from cheap display once every 1-1.5 years, on which, most likely, the problem will appear again? will minimize the possibility of the problem reoccurring. Additional sealing is never superfluous, right?

Of course, it is better to carry out such work with experience, in a previously prepared place, observing the maximum possible cleanliness, otherwise dust particles flying in the air will nullify all your efforts. To open thin iMacs, you may need a special tool (vaguely reminiscent of a pizza knife), which our foreign colleagues from iFixit sell, but you can do without it if you wish.

By the way, while performing the “procedure”, we saw a few more interesting cases: in MacPlus, not only matrices are cleaned - our colleagues have enough experience to troubleshoot power problems, backlighting, clean and repair flooded or burnt motherboards, in a word, they can perform absolutely any repair Apple. Let's hope that we will come back here soon, because the guys definitely have something to tell.

In order for any device, from a vacuum cleaner to a computer, to serve for a long time, it needs timely and accurate care. Not everything can be done with your own hands. For example, there is such a delicate procedure as cleaning the matrix from soot and dust, which it is better not to carry out with improvised means. The advantages of performing this procedure in a workshop are as follows:

Faster and more reliable

Since it is not a problem for experienced professionals to clean the iMac matrix from soot of all models and years of production, the mechanism for its implementation is perfected to perfection. Therefore, what would take you a lot of time at home is carried out in the workshop quickly, efficiently and without the risk of breaking any desired train.

The quality of the result is higher

In order not to doubt how high-quality the cleaning of the aimag matrix from dust will be, whether all the necessary parts will be cleaned of contamination (after all, it can be not only dust, but also soot, other contaminants), and whether this will damage the insides of the computer, it is better to contact to those who thoroughly know the intricacies of iMac care.

Get a clean computer in an hour

To carry out preventive cleaning of the aimag matrix from dust, you can order a courier or take the computer to the workshop yourself, and it will be clean very quickly, and you can pick it up yourself at any time convenient for you or receive it by courier.

Hello! How much does it cost to clean the imac 27 matrix at your place?

Hello, 9,000 rubles.

Good evening. How much does it cost to clean the imac 21.5 sensor from hooves and dust?

Hello, 8,000 rubles.

Good afternoon, can you clean the matrix from soot and dust for new models?

Hello Sergey. The latest iMacs don't have this problem. This matrix defect is observed only in models of 2009 - 2012 (with a DVD drive)

Hello! I have an iMac 27 late 2012, new type - thin. In the lower corners of the display, spots of either micro-dust or soot are slowly growing - I don't know. Looks like small smoke marks. I read that this is a recognized marriage in the first batches of thin models - they were changed under warranty. But my warranty is over, and I have these questions: 1. Because. the glass is soldered to the matrix, you probably have to change the whole matrix ?? Or is cleaning possible contrary to popular belief? 2. If cleaning is possible, will the stains reappear over time? How much does this cleaning cost? 3. If cleaning is still impossible - how much does it cost to change the matrix + glass? 4. If changed, will there be a warranty for the new display and what?

Hello Kirill. In your case, it is easy to clean the matrix from dust and soot. You don't have to change the entire matrix. Spots on the matrix may reappear over time; for this, for prevention purposes, cleaning should be done 1-2 times a year. Cleaning the matrix on your device costs 12,000 rubles. Please contact our service center and we will always be happy to help you.

In which we talk about how to fix certain problems with Apple computers. MacFix is ​​frequently approached by users of Apple iMac desktop computers from 2009 to 2012 inclusive, with the problem of dust on the screen.

In this article, we will explain and show you how to clean the matrices in your iMac 21.5 or 27 yourself.

Let's take a 2010 iMac 27 ″ for experiment. The iMac (in appearance) was in a dusty room, even when turned off, gray streaks are visible under the glass. And, as it turned out later, in this room they also regularly smoked, and obviously not thin cigarettes.

Before proceeding with the disassembly of the screen, you need to carefully prepare the work surface. The surface should be horizontally flat, clean, free of debris, and even more so without any crumbs. You can put a clean, dry and soft towel of a suitable size on the table (larger than the screen size - at least 10 cm on each side).

There should be enough space on the desktop so that during disassembly all the parts of the matrix in the disassembled state can be freely accommodated on it. The bezels of the screen can also be removed under the table, if it is convenient. Let's get started.

The photo clearly shows (without removing the glass) that along the top of the screen there is a wide strip of dirt and dust.

Carefully remove the protective glass by grasping the middle of the screen with a suction cup.

With the help of a visual inspection, we carefully examine the state of the matrix and glass. The conclusion is unambiguous - wiping the glass and matrix with a cloth will lead nowhere. It is possible that only stains will remain from brushing off the top layer of dust.

We put the glass aside, remove the matrix and proceed to disassemble it.

The first step is to carefully remove all the trains.

We carefully memorize the position of the fastening frames attached on the short sides (magnets on top and on the vertical sides of the matrix, directed outward). We unscrew all the screws that secure the frames to the base of the screen. Of all the screws, only two are short (remember the side on which they were installed).

The frames are in some places glued to the foil along the base of the matrix, therefore, to remove them, we use thin but durable tools (for example, a construction trowel and a specially sharpened spatula).

Along the upper border of the screen along the edge there are thin loops bent towards the base of the decoder. They are not securely attached to the decoder. Therefore, any contact with them must be extremely careful. Even if you apply a slight force, the loop or even one contact on the loop may move away from the decoder's contact pad, or a crack from bending may appear at the base of the loop. In this case, the repair of the matrix can be considered complete. The new matrix on the 27 ″ iMac starts at 20,000 rubles.

Remove the aluminum adhesive tape around the perimeter of the entire matrix frame. This should be done slowly and very carefully! We will also have to remove the adhesive tape covering the decoder cover (along the top edge of the screen). We remind you that the new matrix on the 27 ″ iMac costs from 20,000 rubles.

We unscrew the screws securing the decoder cover. Remove the cover and carefully disconnect the two adapter cables from the main matrix board. Carefully peel off the matrix boards from the matrix body. Again, it will not be superfluous to remind that the new matrix on the 27 ″ iMac is expensive.

Along the perimeter of the screen (again very carefully) we take it out of the fastening latches, slightly bending the edges of the frame. It is more convenient to do this operation together, placing the matrix on a short edge on a flat hard surface. Everyone has already understood the cost of the new matrix.

Then we very carefully remove the LCD glass of the matrix (we no longer remind about the new matrix). You will have to carefully and as easily as possible toss the decoders in order to raise the LCD glass, holding them strictly by the middle of the long side, without twisting or jerking.

We lift the LCD glass of the matrix and put it aside so that the cables from the LCD glass to the decoders do not bend anywhere and lie free.

Under the LCD matrix we see reflective layers, the one closest to us along the upper side is covered with a wide strip of gray-brown soot.

We can only remove this kind of dirt with active chemistry. In this case, we took Mr. Muscle Professional (no ammonia). White paper towels (no color print) are ideal for controlling dirt removal and cleaning fluid residues. Textiles are not good here - just smear the dirt on the LCD glass.

We do all the operations for washing and wiping the reflective layers and the matrix carefully and quickly enough, since the detergent, dissolving the dirt in itself, begins to dry out. We installed a bright lamp next to the work table to see that there are no streaks on the reflective layer and on the sensor.

We clean all surfaces, starting with the reflective layer, which remained in the mount of the display module.

Now it's time to clean the LCD glass. We very carefully transfer the glass to a clean surface so that the decoders lie freely on the table surface without any bends. In this case, the glass itself should lie tightly on a strictly horizontal surface of the table. It is better to do this operation together so that the LCD glass does not move on the surface of the table when actively wiping it with a paper napkin.

We can see the result of cleaning the reflective layer and the matrix in the photographs.