Foreword: several friends came to me this time and asked me to help with the reliable laptop repair shop, whose notebooks, apart from all kinds of problems, had broken screens, had hot fevers, had graphic cards. These failures tend to lead to different conclusions in different maintenance shops, where the cost of maintenance is so great that you can change a new main board or whatever major accessories you want. That is why it was thought of writing an article on what should be taken into account in the maintenance of the notebooks, and how much might be spent on various failures。
Why is the laptop market so messy when you buy it? There's a lot of hacking around, and any shop says they're some laptop master. Goldman, diamond agent, mars agent, w. Can't even see the potential of a monster as obvious as his moon, so we have to tell which dealer is the most reliable? It's hard to buy it, but it's not as good as a bag, it starts to fail after the warranty period, it goes to official maintenance, it costs hundreds or even thousands of maintenance, and it gives private maintenance vast space。
It's private maintenance, but the difference between human beings is huge. Many of the private repairs saw customers come to the door, their eyes were green, and the head was like a note written by a wolf, which made people look at it. They're like a restaurant next to a train. They're a big one. They never expect to return. However, when consumers do their homework, they tend to shrink and do not take out the fastest knife. Following is the official entry into the maintenance and literacy section。
The theoretically possible failure of the notebook is strange, and the irresistible failure of a battery explosion is not explored, so let's say how mainstream failure should be addressed. The laptop failure can be divided into two broad categories: software failure and hardware failure. Many friends can solve software failures themselves, and they will not be able to redo the system until they do not understand it and there are no understanding friends around them. The cost of re-engineering the system is typically $50, and the black mind will charge $200 or more。
Software failures are not so bad for many people as they can't be repaired, and can be formatted to redo the system. Most important is the hardware failure, which many friends find by defusing, but they cannot buy their own accessories like diy, or seek help from the maintenance points. Hardware problems can be grouped into four main categories: main plate, liquid crystal screen, hard drive and battery. Today, let's challenge the four kings。
The level of maintenance is now high, not comparable to that of a lay person like us. Each of them can deal with almost all the laptop malfunctions alone, and we don't even know where, how or how. However, after reading this article today, we would like everyone to know that 90 per cent of the malfunctions do not involve the entire replacement of spare parts and that minor repairs can achieve their purpose。
Important reminder:
Get in the maintenance shop, don't talk so much, don't be afraid that you don't know anything about the notebook, just describe it as if it's not working. Because a lot of friends at the maintenance store say, "is it a question of hosting? Is the graphic card broken? Would you like a new language? It'll make maintenance staff aware of your computer level at the price of a price, so they can let you go. Of course, after looking at today's content, there can also be ceremonial and inhuman price-cutting with certainty。
As a general rule, as long as it is determined that the hardware problem is one (and that the reloading system is ineffective or not even capable of reloading), it is required to perform repairs. This is not an official maintenance shop, so when the maintenance staff asks you to leave the machine for another time, you must categorically refuse to take it. Who knows if you'll change parts? It is important to keep it on the side, and information on memory, hard drives, counting cards, etc., is recorded on the maintenance list. The maintenance staff will determine the source of the failure and then offer you a price, and you will begin to bargain and, if you don't agree, you will be asked to reassemble the machine and find another maintenance shop. Without service provision, consumers can reject all false charges for dismantling, which would have been free of charge。
Main board maintenance
The main plate failure of the notebook is known to be difficult to detect and easy to solve. It can be said to be the most important part of the notebook, assigned to the use of all other parts, and the main hub of the computer. It has the greatest number of functional modules and the largest number of electronic metaware, any of which could lead to a problem with the notebook. It is too easy to kill a maintenanceist looking for a master board failure like a martial arts master looking for a common criminal in a big city。
Frequent main plate failure: innumerable failure to turn on, not to access the system, to turn off automatically at random, blue screens, etc。
(b) disturbance process: many maintenance staff will target the main plate when they encounter an undetectable malfunction, with the following four main means: first, after the machine has been dismantled, the maintenance staff will separately remove the main plate and observe, on the basis of experience, whether there is direct damage to the main plate and to the components in terms of appearance; secondly, further damage to the component is determined by means of the machine, for example, by means of a matrix; and thirdly, depending on the function of the component, experience will determine whether the damage is directly related to the symptoms of the machine problem. Finalize the symptoms of the problem and the method of repair; then proceed with the offer and determine the need for maintenance before the maintenance can commence。
Main board maintenance methodology and cost estimates
On the main panel, although numerous metaware and functional modules are dense, they are not too high-tech products and can be repaired with simple tools. Unless you're in bad luck, the pcb board on the main plate is broken, it's all fixed, so it's a naked blackmail to say that the maintenance store is not moving and you're changing the main plate. The article begins by saying that it has something to do with one's character。
The maintenance of notebooks is also thought-provoking, with some maintenance staff finding no problem for half a day, experienced people knowing by their eyes the probable source of failure, and the main board seems to rely more on this accumulated experience. Details of the various main board maintenance methods are given below。
I. Fiction of the master plate
It is not clear whether any of you have taken work classes as a child, one of them being welding circuit boards, which are actually more sophisticated circuit boards, all of which are welded links. Some friends ' notebooks are not protected, welds on the main board are empty and welded, and electricity cannot be passed without success, resulting in normal working of the metaware. The solution is simple: it can be fixed with a few iron points, and the maintenance staff, when they are unable to determine the exact welding points, weld them at multiple points, in a manner that would have preferred to kill them by mistake。
Commercial costs: basically zero
Repairer's intellectual work: more eye work, welding
Maintenance costs: $10 is reasonable. Most fees are $50
Ii. Methodology for components
The replacement method is as simple for the maintenance staff as it is for us to eat and sleep. Damage to the main plate, including electrical capacitor, resistance and triode, can be repaired by replacing new parts. The maintenance staff loved the failure, found it simple and easy to repair。
Business costs: the cost of replacement parts varies from a few cents to a few dozen bucks
Repairer's intellectual work: senior maintenance staff will be able to do it in minutes, depending on the maintenance staff's experience and eyes
Maintenance costs: maintenance costs vary by several dozen dollars
Iii. Chip replacement
Not only is there a large number of components on the main plate, but the chips are also very dense. The south bridge, the north bridge, the net, the sound cards, etc. The main plate is almost completely disabled if the north-south bridge is broken, but the other chips are still serviceable. The main thing is to see if the maintenance workers have any reserves of these chips. So maintenance workers like to change consumers to new master boards so that the chips and components on the old master boards are all in their reserve。
Commercial costs: the rareness of the replacement chip determines the fee
Repairer's mental labor: good hands are easy, new hands are hard to handle
Maintenance costs: normally not exceeding $200
Iv. Major bios debugging
The problems with the main board, bios, often lead to a failure to operate properly and it is difficult for consumers to solve them themselves. The maintenance staff, on the other hand, can perform repairs using editing tools。
Commercial costs: the cost of purchasing some codification and writing tools is low
Maintainer's brain work: a single solution, skilled enough, little brain
Maintenance costs: $50
V. The phoenix act
The master plate can be abandoned when the master plate is devastated and certain functional modules are completely destroyed and irretrievable. For example, the pcb plate breaks a mouth and the north bridge chip burns a hole, which is a problem for the maintenance staff。
Business costs: costs of replacing the main board
Repairer's mind work: little brain work
Maintenance costs: it depends on the ability of the consumer to cut prices
Because of the fact that the master plate of the notebook is relatively simple and popular, the main panel of the desktop is relatively simple, and it is easy for repairers to observe the problem, even if they do not see the problem, to purchase another piece instead. The main board of the notebook, however, is different, as it must not be replaced, and the price is too high and it may not be possible to buy suitable alternatives。
Identifying the source of the problem is a top priority
As long as we know where the malfunction is, we know if we're going to change the main panel. The cost of maintenance is lower as long as it does not require a thorough overhaul. Almost half of the main plate failure can be solved within $100; 80 per cent of the failure can be contained within $200, and more than 500 fees are not on the main plate, which means that they were slaughtered。
