macbook connectors. MacBook Pro specifications. Reasons, details, terms and warranty

Availability of certain features, options, and configurations of the device may vary by country and/or region.

1 GB = 1 billion bytes, 1 TB = 1 trillion bytes; the actual capacity after formatting is less.
Testing was carried out by Apple in October 2018 on preproduction 1.6GHz dual-core Intel Core i5 MacBook Air units with 8GB of RAM and 256GB SSD. Testing conducted by Apple in May 2017 using preproduction 1.8GHz dual-core Intel Core i5 13-inch MacBook Air units with 8GB RAM and 256GB SSD. Wireless testing measured battery life while browsing 25 popular websites at 75% display brightness (12 clicks from minimum brightness). The iTunes movie playback test measured battery life while playing 1080p HD content at 75% display brightness (12 clicks from minimum brightness). When testing standby mode, battery life was determined as follows: a system connected to wireless network and iCloud account were allowed to go into standby mode. This opened the Safari and Mail apps, and left all system settings at their defaults. Battery life may vary depending on settings and how you use your device. More details on the page.
Weight may vary depending on device configuration and manufacturing process.
iMovie, GarageBand, Pages, Numbers, and Keynote can be downloaded from the Mac App Store. Required to download apps Account Apple ID, as well as a device compatible with that version operating system, which is required for the corresponding application to work.
The recycled material claim is for the hull and is based on testing conducted by UL LLC.
MacBook Air is EPEAT Gold certified in the US and Canada.

For repairs are used: a soldering station with bottom heating, an oscilloscope, an external power supply, and more sophisticated equipment. Diagnosis, repair and testing can take a couple of days.

Reasons, details, terms and warranty

In 90% of cases, damage to the port occurs due to impact, deforming it, and there is no point in soldering a crooked connector. We use only new original spare parts from the warehouse, and in the absence of the right one, it will appear within 4-6 hours. Repair lasts from 1 to 3 days, depending on the complexity. Warranty for parts from 6 months to 5 years, and for work - 1 year!

The fall

Often, when a MacBook case falls, it is deformed in the area of \u200b\u200bthe ports, which is fraught with damage to them, and if a flash drive was inserted, then the connector can be torn off the motherboard, coupled with a short circuit.

Flooding

Liquid in the connector causes a short circuit and an early death of the chipset or multicontroller. If by some miracle it was possible to avoid a short circuit, but the moisture remained, corrosion of the tracks in the connector begins.

Just as often suffers a small additional board, which houses the USB, SD slot and HDMI. It makes no sense to repair it, because the repair price is comparable to a new board.

physical impact

Even in the off state, some connectors are powered from the battery, so you should not pick them with a needle or toothpick - you can close the contacts and, when turned on, burn the fuse or even the processor. With a problem, it is better to turn to professionals.

Chipset, short circuit and overheating

Chipset - a microcircuit for joint work USB, sound, hard drives and other laptop nodes. A short circuit in USB completely or partially disables the chipset. Less commonly, overheating contributes to this, but it is advisable to do preventive maintenance on your MacBook regularly.

Order a repair

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

If spare parts are available, up to 85% percent of complex repairs can be completed in 1-2 days. Modular repairs take much less time. The site indicates the approximate duration of any repair.

Warranty and Liability

A warranty should be given for any repair. Everything is described on the site and in the documents. A guarantee is self-confidence and respect for you. A 3-6 month warranty is good and enough. It is needed to check the quality and hidden defects that cannot be detected immediately. You see honest and realistic terms (not 3 years), you can be sure that you will be helped.

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

Free diagnostics

This is very important and has already become a rule of good taste for service center. Diagnosis 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 after it.

Service repair and delivery

Good service appreciates your time, therefore offers free shipping. And for the same reason, repairs are carried out only in the workshop of the service center: it can be done correctly and according to technology only 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 in order to be in time before and after work. Good service works on weekends and 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 is 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, they turn to it, write about it, recommend it. We know what we are talking about, since 98% of incoming devices in the SC are restored.
We are trusted and passed on complex cases to other service centers.

How many masters in the directions

If you are always waiting for several engineers 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 care of immediately.
2. You give Macbook repair to an expert specifically in the field of Mac repairs. He knows all the secrets of these devices

technical literacy

If you ask a question, the specialist must answer it as accurately as possible.
To give you an idea of what you need.
Will try to solve the problem. In most cases, from the description, you can understand what happened and how to fix the problem.

If you find that the battery of your Macbook Pro is no longer charging from the native adapter, do not rush to poke a soldering iron into it. As silly as it sounds, the first thing to do is:

1. make sure that the contact in the socket is reliable (do not use a broken one);

2. make sure that there is power in the outlet (plug another, known to be working device into it);

3. check that foreign objects are not packed into the laptop's power socket (usually food crumbs, compressed dust clods and other insects get there);

4. carefully inspect the yellow contacts of the connector. They should not be burnt, blackened, oxidized. When you try to drown them inward, the pins should come back without jamming. It is advisable not to scratch the gilded coating once again;

5. make sure that the cord from the adapter to the connector does not have mechanical damage, creases, bare wires do not stick out from under the insulation, have not been driven over by an office chair, etc. A damaged wire can be easily replaced with your own hands for any other of the appropriate section. In macbooks, only two wires go from the power supply to the Magsafe 2 connector:

If you are a very lucky person, simply unplugging the adapter from the network for a few minutes can save you. It happens that, due to a power surge, the charger goes into protection and it needs time to think the lock has been reset.

Sometimes, when you connect the adapter to your Macbook, the charging indicator does not light up, but in fact it is charging. The fact is that the desired indicator (orange or green) is set on fire by a command from the SMC system management controller located in the MacBook. Sometimes, due to accumulated errors, the SMC starts to fail and then resetting the controller helps.

To do this, you need to connect the adapter to a completely turned off (not sleeping, namely turned off) macbook, press the key combination Shift + Control + Option and, without releasing them, press Power. Then, simultaneously releasing all the buttons, turn on the laptop with the reset controller.

If all else fails, you will have to make a friend with the exact same MacBook and discreetly swap chargers with him and try to connect to his charger. It is not necessary that a friend has exactly the same adapter - a more powerful one will also work. The main thing here is that the connectors match. [Comment : according to one of the comments on this article, a less powerful power supply is also suitable for testing]

If your MacBook battery does not charge with your charger, and when you connect someone else's charger, everything starts working as it should, then your charger is broken. Your cap. The bravest ones can tell the wife that the purchase of a mink coat is again canceled, since the MacBook is more important. The rest will have to repair the adapter on their own.

I had a defective 60W MagSafe 2 PSU, so most of the following will be true for this adapter. This charger was equipped with 13-inch models Macbook Pro with Retina screen:

MD212, MD213 (Late 2012)
MD212, ME662 (Early 2013)
ME864, ME865, ME866 (late 2013)
MGX72, MGX82, MGX92 (Mid 2014)
MF839, MF840, MF841, MF843 (early 2015);

Macbook Pro Charging Repair

Before delving into the innards, it is useful to know how the charging process is initiated. You may be surprised, but Apple engineers have managed to integrate microprocessor control even into such a simple device as a charger. Here are the key points:

operating voltage is 16.5 volts. However, as long as the adapter is not connected to a load, its output has an idle voltage (about 3V) with a current limit of ~0.1 mA;
after connecting the connector to the macbook, the adapter output is loaded with a calibrated resistive load, due to which the open-circuit voltage sags to ~ 1.7V. The 16-bit microcontroller in the charger detects this fact and after 1 second instructs the output switches to output full voltage. Such difficulties make it possible to avoid sparking and burning of the connector contacts when the charger is connected to the laptop;
when connecting too large a load, as well as in the presence of a short circuit, the open-circuit voltage will drop significantly below 1.7V and the command to turn on will not follow;
in the power connector of the Macbook Pro there is a DS2413 microchip, which immediately after connecting to the MacBook starts exchanging information with the SMC controller via the 1-Wire protocol. The exchange takes place on a single-wire bus (the middle contact of the connector). The charger tells the laptop information about itself, including its power and serial number. The laptop, if everything suits it, connects its internal circuits to the adapter and tells it the current mode of operation, on the basis of which one of the two LEDs lights up in the connector. The entire exchange of pleasantries takes less than 100 milliseconds;

Considering the foregoing, it is unlikely that it will be possible to charge a MacBook without native charging. Checking the power supply without a MacBook will not work either.

Theoretically, for testing, you can connect a 39.41 kΩ resistor to the two extreme contacts of the Magsafe connector (which is not so easy to do, given the design of the connector). After a second, a voltage of 16.5 volts should appear on the resistor. In this case, the indicator on the connector will not light.

For those who don't know, the Apple Magsafe 2 power supply connector has the following pinout:

This smart design of the charging socket allows you to connect your Macbook without thinking about polarity.

Despite the fact that the original adapter has all kinds of foolproofing built in, it should still not be treated lightly. The power of this power supply is enough to set you on fire at the first opportunity, splash you with molten metal and scare you to hell ... hiccups.

How to painlessly disassemble the adapter

To disassemble the Macbook charger, you will have to use brute force, since the halves of the case are glued to each other. Most painless option- use pliers as shown in this video:

I managed to disassemble the power supply from my Macbook Pro in 2-3 minutes (with most of the time spent looking for a convenient stop for the pliers). After that, light traces of the autopsy still remain:

After the case is opened, you need to carefully inspect the printed circuit board for burnt tracks, charred resistors, swollen or leaking electrolytes, and other anomalies.

The board will most likely be filled with some kind of compound, it must be carefully removed. And it would be nice not to tear off anything superfluous.

It does not hurt to immediately ring the fuse at 3.15A. Here it is in brown:

If the fuse is defective, then this, as a rule, indicates a breakdown of either the diode bridge, or the powerful MOSFET, or both. These elements burn most often, since they bear the main load. They are very easy to find - they are located on a common radiator.

If the field effect transistor is knocked out, it makes sense to check the low-resistance resistor in the source circuit and the entire snubber circuit (R5, R6, C3, C4, D2, two chokes FB1, FB2 and capacitor C7):

When repairing a Macbook power supply, it is strongly recommended to plug it into a 220V network through a 60-watt light bulb. This will prevent devastating consequences in the event of a short circuit in the circuit.

Be extremely careful! A high-voltage capacitor can hold a life-threatening voltage for a long time. I got caught once and it was extremely frustrating.

If, after replacing the defective elements, the power supply did not start, then, alas, further repair of the Apple Magsafe 2 charger is impossible without an electrical circuit diagram.

By the way, the most reliable way to find out whether the circuit has worked or not is to measure the voltage on the output electrolytes. On the working adapter there should be 16.5V:

Magsafe 2 Adapter Schematic (60 Watts)

It was not possible to find a schematic diagram of the Macbook power supply, so there was nothing left to do but draw it from printed circuit board. Here is the most interesting part:

As can be seen from the diagram, the charger is assembled according to the classical scheme of a single-cycle switching power supply. The heart of the converter is the DAP013F chip - a modern quasi-resonant controller that allows you to achieve high efficiency, low interference, and also implement protection against overload, overvoltage and overheating.

At the initial moment of time, after connecting the adapter to the outlet, there is no voltage on the turns of the winding 1-2, respectively, the voltage at the gate of the transistor Q33 is zero, and it is closed. At its drain, the voltage is equal to the operating voltage of the zener diode ZD34, which comes there from a full-wave rectifier formed by diodes D32, D34 and part of the power diode bridge BD1, through a chain of resistors R33, R42.

Transistor Q32 is open and capacitor C39 starts charging from the same diode rectifier (along the circuit: R44 - ZD36 - Q32). The voltage from this capacitor is supplied to the 14th leg of the IC34 microcircuit, which, through its internal switch, is connected to pin 10 and, accordingly, to the 22 uF electrolytic capacitor C (we could not find its designation on the board). The initial charging current of this capacitor is limited to 300 μA, then, when the voltage reaches 0.7V on it, the current increases to 3-6 mA.

When the microcircuit start voltage is reached on the capacitor C (about 9V), the internal generator starts, the pulses from the 9th output of the microcircuit arrive at the Q1 gate, and the whole circuit comes to life.

From this point on, the voltage of the IC34 microcircuit is powered by the capacitor C, the voltage on which is formed from the winding 1-2 of the transformer through the rectifier diode D31. In this case, the internal switch of the microcircuit breaks the connection between the 14th and 10th pins.

Protection against excessive increase in output power is implemented using elements ZD31 - R41 - R55. When the voltage at the output of the winding 1-2 rises above the breakdown voltage of the zener diode, a negative potential appears on the 1st output of the microcircuit, which leads to a proportional decrease in the amplitude of the pulses on the 9th output.

Overheating protection is implemented using an NTC31 thermistor connected to the 2nd output of the microcircuit.

The 4th output of the microcircuit is used to determine the moment of switching the output key at the points of minimum current.

The 6th output of the microcircuit is designed to stabilize the output voltage of the adapter. The feedback circuit includes an optocoupler IC131, which provides galvanic isolation of the high-voltage and low-voltage parts of the adapter. If the voltage on the 6th leg drops below 0.8V, the converter switches to reduced power mode (25% of the nominal). Capacitor C36 is required for correct operation in this mode. To return to normal operation, the voltage on the 6th leg must rise above 1.4V.

The 7th leg of the microcircuit is connected to the current sensor R9 and if a certain threshold is exceeded, the operation of the converter is blocked. Capacitor C34 sets the time interval for the auto-recovery system after an overcurrent.

Pin 12 of the microcircuit is designed to protect the circuit from overvoltage. As soon as the voltage on this leg exceeds 3V, the microcircuit goes into blocking and will remain in this state until the voltage on capacitor C drops below the controller reset level (5V). To do this, you need to unplug the adapter from the network and wait a while.

It seems that this adapter does not use the overvoltage protection functionality built into the microcircuit (in any case, I was not able to trace what the R53 resistor is connected to). Apparently, this role is assigned to the transistor Q34, included in the feedback circuit in parallel with optocoupler IC131. The transistor is controlled by the voltage from winding 1-2 through a resistive divider R51-R50-R43 and in the event of, for example, an optocoupler malfunction, it will not allow the microcircuit to increase the converter voltage uncontrollably.

Thus, this 60-watt power adapter implements triple protection against exceeding the output voltage of acceptable limits: an optocoupler in the feedback circuit, a Q34 transistor in the same circuit, and a ZD31 zener diode connected to the 1st leg of the microcircuit. Add here more protection against overheating and overcurrent (against short circuit). It turns out a very reliable and safe charger for a MacBook.

In Chinese chargers, most of the protection systems are thrown away, and also, in the interests of economy, there are no circuits for filtering RF interference and eliminating static electricity. And although these crafts are quite efficient, you have to pay for their cheapness with a higher level of interference and an increased risk of failure of the laptop power board.

Now, having the circuit in front of your eyes and imagining how it should work, it will be easy to find and fix any malfunction.

In my case, the inoperability of the adapter was caused by an internal break in the resistor R33, due to which the Q32 transistor was always locked, the voltage was not supplied to the 14th leg of the controller, respectively, the voltage on the capacitor FROM could not reach the chip enable level.

After soldering the R33 resistor, the microcircuit start circuit was restored and the circuit started working. I hope that this article will help you fix the charger from your MacBook Pro.

For help in identifying completely burned out elements, I am attaching an archive with photos of the board in high resolution(37 photos, 122 Mb).

And people dissected exactly the same charger, only with a power of 85 watts. Also interesting.

Availability of certain features, options, and configurations of the device may vary by country and/or region.

1 GB = 1 billion bytes, 1 TB = 1 trillion bytes; the actual capacity after formatting is less.
Testing conducted by Apple in June 2018 using preproduction 2.3GHz quad-core Intel Core i5 13-inch MacBook Pro units with 8GB RAM and 512GB SSD. Compared to preproduction 15-inch MacBook Pros with a 2.6GHz 6-core Intel Core i7 processor, 16GB of RAM, and a 512GB SSD. Testing conducted by Apple in May 2017 using preproduction 2.3GHz dual-core Intel Core i5 13-inch MacBook Pro units with 8GB RAM and 1TB SSD. Wireless testing measured battery life while browsing 25 popular websites at 75% display brightness (12 clicks from minimum brightness). The iTunes movie playback test measured battery life while playing 1080p HD content at 75% display brightness (12 clicks from minimum brightness). When testing standby mode, battery life was determined as follows: a system connected to a wireless network and an iCloud account was allowed to go into standby mode. This opened the Safari and Mail apps, and left all system settings at their defaults. Battery life may vary depending on settings and how you use your device. More details on the page.
Weight may vary depending on device configuration and manufacturing process.
iMovie, GarageBand, Pages, Numbers, and Keynote can be downloaded from the Mac App Store. Downloading apps requires an Apple ID account and a device that is compatible with the version of the operating system required to run the app.
MacBook Pro is EPEAT Gold certified in the US and Canada.

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