The most common cause of a broken laptop keyboard is problems with the conductive paths located inside it. Often people spill tea, coffee, compote on this device. The paths rot, their closure occurs. Is it possible in this case to repair the laptop keyboard yourself?
Where to begin?
Let's see how they recommend acting:
1. Flush filled device with distilled water.
2. Dry with a hairdryer.
3. Leave for a few days.
What to do next?
If the steps taken did not help, then you will have to continue repairing the laptop keyboard. It will be necessary to disassemble the device and try to restore the tracks. Stock up with special conductive glue. It is used by a car mechanic to restore tracks that heat the rear windows of cars. Proceed to disassemble the keyboard.
Remove the cover, now you need to dismantle the keys. Each key has two parts. They are called the "platform" and the "elevator." Sometimes a spring element is added. Something similar to a dental hook or a thin screwdriver, such as a watch, will do well. The "platform" is connected to the "elevator" by latches (3-4 points of contact). With three compounds, one is mobile, and with four - two.
Next stage
Remove the “elevators”. Further, everything is not so complicated. Mounts will open to your eyes, some of which are movable, and some are not. It’s easier to work with static ones. In modern keyboards, “elevators” can not only rise / fall, but also move. In this case, it is necessary to extend the most movable part, its fastening will go beyond the frame (holding). Lift the “elevator”, and then try to free the part that is motionless from the vice. Then remove the part with spring elements and circuit boards with tracks.
Important point
Older type laptop keyboard repairs may vary. They are also characterized by an intermediate stage, which consists in removing the edging made of plastic. Need a soldering iron, a hairdryer may come up. It is necessary to melt the plastic that is behind the keyboard. During assembly, it is also necessary to melt the fasteners a little, so that they become "caps". If it does not work out, then it is recommended to drip superglue.
Next, let's deal with plastic boards with paths. There are 3 parts in total. Two tracks, the third no. The latter plays the role of a gap. The first two are connected into a single whole. Where there is a fold, connecting tracks are located.
Again, there are exceptions for older models. They have three parts that do not stick together, there are 2 or 3 point gluing. In this case, repairing the laptop keyboard should be done like this:
“You can't just pull the boards to disconnect.” Too high a risk of damage to the tracks where there is an intersection with glue. Take a hair dryer and an ordinary stationery knife.
- Carefully separate the layers, start from the corners of the plastic part. Warm up with glue, and then divide the desired area.
- Do not hurry. Of course, a ragged track can be restored, but if there are a lot of them, this will be a problem and you will have a reason to find out how much it costs to repair a laptop keyboard or replace it.
Recovering tracks
After separating all the layers, see if there is any liquid that has been spilled. Rinse and dry everything. A damaged track is immediately noticeable. But check everything with a tester. The theory says that you need to redraw all the tracks anew, but in practice it is difficult, since they are too close. This is not necessary if you washed everything and then dried it, the corrosion process is stopped. The correct track has a slight ground (or zero). 1-2 Ohm - not critical, the tester should show a short circuit. It is necessary to draw a track from above on the damaged one. Suppose it rotted to the very contact area, then we need to clean the area with a scalpel. After the glue dries, check again. After everything dries, you can collect the plastic part in a few hours. Put it on an aluminum tray. Apply part with spring elements. Now carefully plug everything in, test your laptop. You can use the Notepad program that is familiar to many, but KeyboardTest is a special program. If everything worked out,
turn off the computer, disconnect the keyboard, complete the assembly. Note that there is a feature when installing "sites". They must be installed after installing the “elevators”. Lower them in the center of the spring element, then push the pad down until it clicks.
In case of failure, do not worry, you can always contact the service, where they can help you repair the keyboard of your Samsung laptop or any other manufacturer.