Fixing a Laptop Adapter
- Step 1: Check the Output Waveform and Schematic Diagram. Looking at the output waveform as shown here, it can be seen...
- Step 2: Dismantle the Adapter. Wait a few minutes for the input capacitor to discharge and take the adapter apart and...
- Step 3: Remove the Two Output Capacitors and Solder in the New Ones. The two output electrolytic capacitors...
- Step 5: Conclusion.
Full Answer
What to do if your laptop is plugged in but not charging?
Try plugging the power cord into a different outlet to see if you've got a short or a blown fuse. If it's plugged into a surge protector or power strip, take it out and plug it directly into the wall. At this point, if it still doesn’t work, we've determined that it's not just user error causing the problem.
How to fix an overcharged laptop?
- Charge a new laptop computer for at least 24 hours before using it.
- Lithium-ion batteries last the longest if they stay between 20% and 80% charged.
- Remove the battery if you use the laptop plugged into the wall most of the time.
- If you won't be using the laptop for a month or more, remove the battery. ...
Why is my laptop plugged in not charging?
Try These Solutions to Fix It [Partition Magic]
- Solution 1: Power Reset Your Lenovo Laptop. When the Lenovo plugged in not charging issue occurs, you can try powering reset the computer to fix the issue.
- Solution 2: Check Battery Threshold. ...
- Solution 3: Troubleshoot Potential Hardware Issues. ...
How to repair laptop charger at home?
Step 1: Tools Required
- Vise (or other means for securely holding your power "brick")
- Soldering Iron (and solder)
- Multimeter (not strictly needed, but its always better to check your work)
- Flathead Screwdriver
- Wire Cutter/Stripper
- Utility Knife
- Hot Glue Gun
- Super Glue
- Heat Shrink Tubing or Electrical Tape (not pictured)
What is a laptop power supply?
How to remove electrolytic capacitors?
About this website
How do I fix the adapter on my laptop?
0:224:31How to Open and Fix Laptop AC Adapter without Damaging. DC ...YouTubeStart of suggested clipEnd of suggested clipWe begin let's talk about the two most common AC adapter problems speaking from my own experienceMoreWe begin let's talk about the two most common AC adapter problems speaking from my own experience it's a broken cable at either the wall or device side due to excessive flexing of the cable.
How can I fix my charger adapter?
0:491:44Fix Any Phone Charger/Adapter Quick & Easy - YouTubeYouTubeStart of suggested clipEnd of suggested clipUm here's a quick tip to stop it all you gonna do just pinch really hard on them. All right now putMoreUm here's a quick tip to stop it all you gonna do just pinch really hard on them. All right now put a lot of pressure. Do a little bit at a time.
Can a laptop charger be fixed?
Cables on laptops, phones and tablets will ALWAYS fray. Replacing the charge on an expensive new laptop seems like an unfair additional cost, luckily it's one that can easily be avoided. So long as the cores are not damaged or exposed and the cable still works, then Sugru Mouldable Glue can fix it!
Why is my laptop AC adapter not working?
Use a voltmeter to measure the power output and verify the outlet is functioning properly. Alternatively, you can also try another wall outlet. Also, double check the circuit breaker and make sure nothing is tripped or turned off.
Can you fix a broken adapter?
Power adapters can cost hundreds of dollars to replace, but they can often be repaired for free if you already have the necessary materials. The same thing can happen to the plug on any kind of power adapter, but it happens most frequently with notebook computer power supplies, especially ones with coaxial cords.
How can I charge my laptop with a broken charger port?
Use an “Externally chargeable Laptop Battery” to charge your laptop with a broken charger port. Once your laptop battery is consumed, remove the (rechargeable) Laptop Battery from the backside of your laptop, and plug it into the battery charger, and then mount the charger in the electric socket board.
Can you charge a laptop with USB?
So, if you've been wondering how to charge your laptop without its included charger, the new USB-C option might be the answer. With the near-universality of USB-C, you can plug pretty much any USB-C charger into your laptop's USB-C charging port and it will (in theory) provide power.
What are the 3 wires in a laptop charger?
Usually when there are three wires and the plug has 3 pins to the outlet then,one is positive the other negative and the third is ground.
How can I tell if my AC adapter is bad?
1:423:10How To Fix Test your Charger / Power Cord / Adapter Cable - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we know this charge is good if your charge is bad it will most likely read zero it won't beMoreSo we know this charge is good if your charge is bad it will most likely read zero it won't be putting out anything or it will be well off of the 19 volts. But that's how you test your charger.
Why is my laptop plugged in but not charging?
Common culprits include a faulty motherboard, damaged charging circuits, and malfunctioning battery sensors. Your particular make and model of laptop will likely have its own unique issues, and a seasoned tech support operator will have seen all of them.
How do I know if my laptop AC adapter is working?
How to Test a Laptop ChargerBe sure that the charger is plugged into a working outlet and getting power. ... Try to run the laptop from the laptop charger only; if it will not run off the charger alone then the charger is faulty or no longer any good. ... Try charging your laptop with the laptop powered off.More items...
Why did my adapter stop working?
Check if there are broken, or loose, connections at both ends of the cable. If users spot any notable tearing on the adapter's cable, that's probably why it isn't charging the laptop. Users will probably need to get a replacement adapter if there are loose connections.
How can I fix my laptop charger port?
The most reliable solution is to change the cable for the power port. Get this port cable online and replace it yourself if you can handle a little...
How do I know if my laptop battery or charger is bad?
In order to figure this out, remove your battery while the charger is still connected to the laptop. If the laptop doesn’t go off, then the bad ele...
Why is my laptop changing between charging and not charging?
This can be cause by a loose port. This is especially if you change the charging states of the laptop in fast succession. If the battery driver or...
How to force my laptop to run on direct power and only use the battery ...
Answer (1 of 12): If the adapter your using lacks proper wattage and or voltage then it can indeed reverse charge, meaning it drops instead of going up to the 100 percent level, then that's about the only time it matters. Most laptops will run with just the adaptor and no battery or with the batt...
How to Fix a Power Adapter : 6 Steps (with Pictures) - Instructables
So as much as I enjoy Asus, I am currently incredibly irritated with the power adapter that came with my current eeepc. The front plate of the adapter has always been a bit flimsy, and yesterday when I pulled the adapter out from the wall, the faceplate decided remain embedded in the outlet, while the rest of the adapter rested quite comfortably in my hand.
if my laptop is fully charged, still keeping the charger plugged in to ...
Hi rooney10057, Welcome to the Community, The power supply to the battery is automatically cut off once the battery is 100% charged.So even you keep the AC adapter plugged in it does not harm your battery.However to save power its better to unplug and continue to use the system with battery once battery is fully charged.
What is a laptop power supply?
The modern laptop power supply is a marvel of modern engineering. Switching power supplies have been around since decent power transistors began to appear in the late 1950's but comparing those with what we have today is like comparing a Model T to a modern car. This power supply is actually a DC to DC converter, where the 120-volt AC line voltage is rectified to 170 volts DC, it is then chopped at hundreds of kilohertz and passed through a high-frequency transformer, where it is again transformed to a lower voltage AC and then again rectified to DC. This is done at over 90 percent efficiency. The major breakthrough that allowed such high efficiencies to be achieved was the development of solid state devices with incredibly high switching speed. The waste heat and hence inefficiency of a switching circuit is mostly produced during the time that the solid-state device is switching from on to off and vice-versa. As the transition time of the device is lowered, the waste heat goes down also. This is a long way from a linear power supply where 30 percent efficiency is considered to be good efficiency.
How to remove electrolytic capacitors?
The two output electrolytic capacitors are on the far right of the board as shown in the picture, unsolder them from the board and use the solder sucker to remove the old solder. Make note of the polarity of the old ones before you take them out and put the new ones in the same way. The negative side goes toward the heat sink as viewed from the top. Take the new capacitors and solder them in with the soldering gun taking care not to hold the soldering gun tip on the board for any more time than is necessary (about 10 seconds).
Why is my laptop not charging after plugging in?
If that does not happen and you find the laptop not charger even after plugging in the charger, then there could be several factors behind such a problem. Here are some of them: A faulty adapter cable of the charger could not be providing enough power to the laptop; The old age of the charger and the battery; ...
How to update battery driver?
Open Device Manager by typing the name on the Windows search bar; Locate "Batteries" from the list and double click on it; Right-click on your battery's driver and click on "Update Driver" before proceeding to the next step; Click on "Search automatically for updated driver software" for the interface to do its job;
How to boot laptop to BIOS?
From the "Advanced Options," click on "UEFI Firmware Settings;". Click on "Restart," and the laptop will start to boot to BIOS; Follow the instructions after selecting to update the BIOS to complete the process.
What happens if my laptop doesn't go off?
To figure this out, remove your battery while the charger is still connected to the laptop. If the laptop doesn't go off, then the bad element is the battery. If the laptop goes off even with the charger plugged in, then the charger is most likely the culprit.
How to reset a laptop?
Here is the method to hard reset the laptop: Remove the laptop's battery after shutting it down; Keep holding your laptop's power button for 30 seconds and then release it ;
How to recover deleted files on laptop?
Run the application on your laptop and select any folder you like from the interface from which you wish to recover data. Click on "Start" after that. Step 2. Scan the Location: After hitting the start button, the recovery scan will begin, and you will be required to wait a few minutes for the scan to finish.
How to restart a computer with a power button?
Click on the power button from the Start menu and hold the "Shift" key while clicking on the "Restart" option;
What to do if your charger is plugged in and your laptop goes dead?
You see that your charger is plugged in and your laptop goes dead. At that point the first thing you should do as I did is look at your LED indicator if it is glowing. In case if your charger does not have any then you can check the output in the cord if it gives the output.
Why do laptop chargers have copper?
The main purpose of the choke or the copper layer is supposed to prevent the radio frequency interference generated in the laptop which may leak back to the output power chord. also it can turn the power chord into a wireless antenna. So you have no use of the copper layer which is said to be the choke.
Why is the output cable connector casing important?
The output cable connector casing is not that important however it can increase the ease of use or it can prevent your connector for more time period.
Can you cut off the copper layer on a laptop charger?
So you have no use of the copper layer which is said to be the choke. You may cut them off in case if they exert problems while doing repair laptop charger. It is advice to cut off the small and sufficient length of the wire rather than strip more than sufficient length of wire which bothers you later. Now you can insert the connector casing and ...
Can you solder factory connectors without melting?
It is really difficult when it comes to do soldering the factory made connectors without melting the insulators. However you can use a hot enough fine tip of soldering iron.
Can you insert a connector casing?
Now you can insert the connector casing and then solder the sufficient ports . Many people who If you are reading this article then you must have faced the problem similar to what i had faced. Many people who repair laptop charger do not bother about laptop charger connector casing.
Step 1: Set Up and Evaluation
Tools I used: Chisel, Hacksaw, Electrical tape (or shrink tubing), wire cutters and/or strippers, flat head screwdriver (preferably sharp-ish and wide-ish), optional: two monkey wrenches for prying. Time: It took me about 1 hour, most of which was spent figuring out how to pry open the adapter box.
Step 2: Break the Box: Getting Into the Adapter
It took many techniques to figure out how to open up the adapter box. The plastic was too weak to crack open w/ just a screwdriver. It just scratched with pressure, while the seam remained firmly bonded. So, I managed to create a deep groove around the entire seam w/ a chisel.
Step 3: HP Adapter Insides
This is the precious inside. Top view and bottom view. I pretty much didn't open up any further than this and I tried to avoid any damage to any parts inside.
Step 4: Fixing the Cord
The cord was coiled up slightly inside the box. I pulled it out all the way. Cut the cord at the end of the rubber spring thing (aka "strain relief") where the cord was breaking. Then I tried stripping off the "strain relief" w/ pliers...
Step 5: Close Up Shop, May Add Reenforcements
Finally, I got to shut-er up. Unfortunately, I didn't have the benefit of an adapter box that locked shut or was fused or glued shut, so I got clever with some duck tape and Black e-tape for finishing. Some commenters have innovated and closed up the adapter box w/ a glue-gun.
Step 1: Slice Off the Old Sheath
Unplug the charger! Slice away the old rubber sheath. Underneath there is the metal plug, and it should have 2 wires soldered to it. One is the center of the wire from the charger, and the other is a short one that connects to the metal strands from the outer part of the charger.
Step 2: Slide Things on for Future Use
You will need the magnet on the wire as well as the large pieces of heat shrink tubing on the cord for later. Slide the magnet first, then the heat shrink tubing.
Step 3: Figure Out Which Wire Goes Where
On my connector the negative is the outer part of the connector and the center is the positive. In the cable the negative is the sheath of strands, and the middle wire is the positive. I think both are normal. There is a diagram on the transformer box as well, pictured below. You can use a multimeter to insure you have the wires correct.
Step 4: Solder the Connections
In the fist picture below the outer part is still connected, but I cut away the tubing i had installed before. Slide the new tubing onto the wire, and solder them in.
Step 5: Test Plug in Laptop
Plug everything in and see if the charging light turns on. It should work now. If it does, leave it plugged in and slide the first piece of large tubing down the cord and line it up with the computer. The metal on the plug sticks way out, so it is good to do this while plugged in.
Step 6: Build the Connector
Slide up the other tubes one at at time and shrink them in place. The tube gets tight and hard when it shrinks, so it holds the wires in place, and makes your new connector resist bending and breaking. Below is my connector with all 5 large tubes shrunk on. It feels pretty solid.
Step 7: Install the Magnet
I don't really know what the magnet is for, but the manufacturer thought it was important enough to put it on, so I did too. I slid it to about the location in was before and zip tied it tightly in place with the two zip ties.
What is a laptop power supply?
The modern laptop power supply is a marvel of modern engineering. Switching power supplies have been around since decent power transistors began to appear in the late 1950's but comparing those with what we have today is like comparing a Model T to a modern car. This power supply is actually a DC to DC converter, where the 120-volt AC line voltage is rectified to 170 volts DC, it is then chopped at hundreds of kilohertz and passed through a high-frequency transformer, where it is again transformed to a lower voltage AC and then again rectified to DC. This is done at over 90 percent efficiency. The major breakthrough that allowed such high efficiencies to be achieved was the development of solid state devices with incredibly high switching speed. The waste heat and hence inefficiency of a switching circuit is mostly produced during the time that the solid-state device is switching from on to off and vice-versa. As the transition time of the device is lowered, the waste heat goes down also. This is a long way from a linear power supply where 30 percent efficiency is considered to be good efficiency.
How to remove electrolytic capacitors?
The two output electrolytic capacitors are on the far right of the board as shown in the picture, unsolder them from the board and use the solder sucker to remove the old solder. Make note of the polarity of the old ones before you take them out and put the new ones in the same way. The negative side goes toward the heat sink as viewed from the top. Take the new capacitors and solder them in with the soldering gun taking care not to hold the soldering gun tip on the board for any more time than is necessary (about 10 seconds).
