How do you fix a laptop
Rabu, 10 Oktober 2018
How do you fix a laptop? To fix a laptop we must accurately analyze the problem symptoms first, so as not to correct it. For example, some people will rush and immediately buy a new battery when assuming it is damaged. It could be just a problem of bad cables or connectors on the power cord, even though it can be repaired with a little solder or insulation.
If the LCD screen is off, it can be a mainboard or video adapter failure, a bad inverter or a burning neon LCD lamp. LCDs need to be replaced, usually due to physical cracks on the glass or blocks of dead pixels. If the CD or DVD drive doesn't work anymore, make sure you've tried the option of trying the cleaning kit before replacing the drive and always check the connection before removing the old drive. Moreover, those who will identify themselves damage are hard drives getting louder or from time to time the battery life decreases.
1. Power / Power failure problem
The problem-solving process always starts by identifying what works. If the problem is related to power, (the battery is one reason the laptop does not want to turn on) the solution: the first step is to make sure the power is contributed to the laptop. This means checking that the LED on the battery transformer is on, and if it does not (or does not have an LED), make sure the ac adapter is plugged into a good electrical outlet. You can check that by unplugging the AC adapter and just plugging in the lamp or can check it with a current tester.
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The next question is whether there is no small LED light status on the laptop lamp?
with power installed in. Even the oldest models usually have a good light power status. If you have positive power status and the notebook will also not turn on, the next check is the battery. Some notebook models will not operate without a properly installed battery, find out on the internet whether your laptop model will operate with a dead or missing battery.
If the battery is no longer a problem and the laptop still does not turn on with good status power, it can cause problems with the power regulator, or more likely the power regulation (ic power component) or mainboard. Addressing regulatory issues or motherboards requires testing equipment or spare boards to swap.
There is a very slight difference between troubleshooting Dell Laptops, Toshiba Satellite, Sony Vaio, IBM Thinkpad, HP Pavilion (Compaq) or even Apple Powerbook or iBook. The basic design of all laptops is the same, although one model uses an Intel CPU, the other AMD is also PowerPC and Transmitter low.
A Toshiba laptop troubleshooting technician might prefer to start with a battery, as is notoriously weak, such as HP and Compaq notebook problems often starting with RAM. However, not all models can be marked as having weaknesses in the same problem. not following the logical process of elimination. Just because one model from Dell tends to have blue spots on the screen at a certain age that Dell notebooks continue to protect with the same problem.
IBM and Sony and Apple laptops are generally seen as higher quality than other popular brands, but they all experience similar problems due to overheating, wear, and occasionally running bad components. Batteries are a special subset of many power problems. Older batteries are especially vulnerable to problems. If it is not perfect in charging, the battery cell begins to record the previous level as the new maximum level, and some individual cells may even be the opposite.
Ni-MH (Nickel Metal Hydride Batteries) which replace NiCd (Nickel Cadmium) for standard models are somewhat better, but they cannot fight the poor charging control circuits or poor software control. All laptop batteries, regardless of shape, consist of a number of low voltage cells connected in parallel or in series to achieve the required operating voltage.
Some older notebooks require that you cycle the battery continuously, only working on AC power as long as it takes to recharge the battery. Many new models have to be fully charged about once a week, but besides not worrying about leaving them installed for a long time, and the latest designs don't matter what you do as long as the laptop actually gets charged on the battery for a reasonable percentage of the time.
If you think your battery is running down too fast, make sure you have activated aggressive power saving mode in the software (usually accessed via the Control Panel or manufacturer icon) which dims the screen, slows down the CPU, and leaves the hard drive spin down when not in use. Also, keep in mind that the estimated level of battery life that causes alarms on the screen to be set by the user, and if your default settings are very conservative (between 10% and 20%), you might want to experiment with lower levels (between 3% and 5%) which will still give you time to save your work and turn it off before entering the hibernation laptop.
how do you fix a laptop?
2. Failure video
The first thing to check for video problems, as described above. If you can always hear the fan of your laptop when you turn on your laptop and now you can't listen to it, it's not a VGA problem, it's a power or mainboard problem.
Solution: The next troubleshooting step is to connect an external monitor with a standard VGA connector, whether CRT or LCD. If your notebook still does not turn on to the external monitor, it is very likely that one of the internal motherboard components or video adapters (if that is not part of the mainboard) has been damaged. Possible damage to the component motherboard in the analysis above is p.a Vga - p.a. processor - ic EEPROM - mainboard chips. Power module power ic component: if the lead is not lit at all.
If the external monitor works properly, some problems occur in the laptop video subsystem, which is usually contained entirely on the screen/assembly cover (flip). Or one of the cable / LCD cable bundles (video or power signal) that operates through the hinges for the video subsystem has failed, unless the problem is clearly on the Lcd tube, (screen cracks, fades in corners, faint images, bad pixels). For your LCD replacement still, have to open the main part of the laptop to check the connection.
The easiest problem to identify problems clearly is (physical damage) LCD cracks, Replacing the LCD is almost the same on most notebooks. If the brightness of your screen appears to be lit or sometimes bright and sometimes almost faded (fully visible) or completely dark, (don't be fooled by the power saver mode), then you may have backlight or inverter problems. Between two, inverters are several times more likely to be problematic, functioning as solid ballasts in modern fluorescent lamps. The backlight itself is CCFL (Cold Cathode Fluorescent Lamp) with a very long time to break/break, while the entire inverter generation is the same on some laptop models, you can easily find replacement parts, both original and compatible
3. Fan problem (cooler system)
Common problems that are often faced are heat problems, however, heat is the main enemy of the laptop, almost 75% of the trouble faced is caused by excessive heat. Moreover, inside the laptop casing, there is almost no empty space all filled with components. The problem with most of the cooling systems is the clogging of the heat dissipation holes in the heatsink (which is covered with dust) which causes the heat to be released again bouncing into the laptop so that the temperature in the very narrow room gets hotter. This can cause overheating on the VGA chip, chip processor and other motherboard components.
Problems with the fan (fan) are marked by a noisy laptop sound, indicating the fan bearing is worn out or the fan is dead, which can harm the motherboard component. You should not wait until there is heat damage (overheat) to replace the fan.
4. Power Port and Connector
Laptops are sometimes interrupted by internal problems from physical connectors, such as modems or network ports seemingly detached in this case, making it difficult to get a good connection or solder a power connector connected to the period (induction). The only way to fix this problem is to open the laptop case, determine what has been damaged, and do your best to restore it to its original condition.
Any problem in the notebook has such a tight tolerance, you might fail after you install the case again. When soldering on a laptop board, use a soft iron tip and not too hot. Do not take risks with high solder heat. This can damage the circuit on the PCB (circuit board) Use a decent solder sucker to quickly clean the remaining residue of soldering tin. if you feel you are working on it too long, you should stop for a moment, and let it all cool down before trying again. Good luck