My notebook HP520 laptop power adapter that line bad contact how to do for a power adapter looks like some of your want to open to see their own line but did not find the screw off
Apple's notebook can not find the screw, but also demolition ah, looking for professionals it, HP's power supply because it will not be expensive, there is not Apple or IBM's. 100 or so will be able to get it, it is not on Taobao it. Anyway, power is not a key thing.
That is the use of ultrasonic pressure welding up, you can open, but be careful carefully to go. With a small hammer along the adapter in a circle, the intensity to master, and then use a flat screwdriver from the mains of the seat of the gap pry, here is a breakthrough, slowly put a circle are forced open, The tape is wrapped around the shell. Pry open the process of careful not to scratch the internal components, pay attention to personal safety. Wish smooth
With the knife on the back of the hook, along the gap crochet, see the cracks are exposed to metal color, with a flat screwdriver into the gap gently turn it open, which is three groups of silver-plated shield, One layer is the ground (black sets) the middle of a layer of output lines (white sets) a cluster is the input line (blue sets of welding line line feet)
How do you know that the line is bad. I have a power supply of the picture, is useless use of ultrasound power, you can look at. We generally when the power supply is bad, are cut with a clippers box. Where is the gap from the middle?
Yes.
The removal method is as follows:
Laptop power adapter for the upper and lower cover for injection molding or bonding with a strong adhesive, without any screws, so generally only with violence to crack. However, as long as the method properly, after the dismantling of the power adapter can be restored to the original, do not carefully observe almost no traces of open.
Place the power adapter on the side of the white paper, cut the gap between the upper and lower covers of the power adapter, and then use the hammer to knock the electric knife back (Figure 1), so that the electric knife from the adapter under the cover between the cut Go in. In the different positions of the gap between the upper and lower covers of the adapter, use the tip of the electric knife to be scratched along the crevice. When the upper and lower covers are first split, the tip is deepened, and then the upper and lower covers of the adapter are slowly separated.
