How to Fix Laptop Power Supply

Laptop power supply system is the third key gadget after the LCD screen

, motherboard. Power system are including power adapter, rechargeable battery and power management systems. Do not think that the power adapter is a high-tech product. In fact, laptop power adapter is now a very mature technology product. In some places south of China, small workshop can produce relatively good product with sound quality. Just like this HP Dv5199xx AC adapter, the price of the original one is tree times that of the replacement. At the same time, there are some problems coming up.

A few days ago, I got this Dv5199xx AC adapter, it failed to work. the situation is: when its owner plug it, the laptop cannot boot, while it works with the battery.

According to the principle of easy-to-difficult, I first check the power cord with a multimeter to test the power line in or off state. It turns out to be that the circuit is out of state. That is to say, the circuit is out of work condition. This is not a big question. I consider looking for alternatives. To my surprise, the radio circuit can be a wise replacement. Then this Dv5199xx AC adapter starts to work as the light on the surface turns to yellow. This is a very simple problem to deal with for some electronics fans. And you can have a try when you come across this problem. The preliminary is the multimeter and a security situation. Some times there might be some dangerous to dismantle the adapter.

By the way, the current laptop power adapter power about 60W 90 W. The internal heat conduction distributed mainly through the plastic shell. Power adapter is easy to raise a very high temperature, also inside the adapter. Some people called it as a heating stove, 80 missed estimates.

Therefore, I suggest that you, when using a laptop, try not to pile up on the power adapter with stuff, especially flammable materials. Now this Dv5199xx AC adapter start to work for its HP laptop.

How to Fix Laptop Power Supply

By: yuyan0903

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