Notebook computer troubleshooting methods

Source: 2020 - 03 - 24 hast judged hits: notebook computer troubleshooting a: power adapter problem power adapter many friends called charger. Although it is not accurate, but also very intuitive. It is easy to determine whether the power supply is not charging, can be replaced. This problem is a common dell laptop repair. Dell laptop using the LBK ( DELL architecture) 。 Charging circuit design is very special. If the adapter fails, will not be recharged. If it is not the original adapter, no charge. More and more new HP laptop computers use the charging circuit. Typical failure is due to power failure, the HP NX6400 CPU utilization of 100%. 2: laptop battery cell the problem of function is relatively simple. Most of the charging schedule has been shown to be 100%. In fact, the power adapter can be in a few minutes, or battery can test directly. Normal wear and tear, is mainly because the battery itself laptop drive fan battery this three laptop accessories are the real 'consumables'. Related clew: even in the case of notebook computer shutdown, laptop also remain the state of electricity, in order to maintain the basic standby voltage on the motherboard. Once connected to external power supply, battery charge will allow a positive start. Many laptops are not often in the office or at home, but because the battery installed on the computer for a long time, so is always in charging and discharging, which seriously affected the life of the battery. Some people say that their laptop batteries used many times, no single unable to work. That's why. So, if you do not use the laptop for a long time, it is necessary to remove the batteries to power control at 40%, and keep in 15 & deg; C or lower temperature. By replacing to identify errors. Sometimes you can't find the same type of battery, you need to go to a professional laptop repair center for help. A repair is change before our laptop battery. This is a laptop battery repair. With the popularity of notebook computer, the price of the laptop accessories also gradually accepted by consumers. Difference between the price of OEM batteries and battery replacement is not very big, so you can directly replace the battery. The price of the laptop battery is about one over ten of the laptop. Of course, there is no need to discuss the functional advantages. The original or the original choice is to weigh the pros and cons between themselves. 3: motherboard problem laptop problem is one of the most serious problems encountered in the notebook computer repair, because it is to do the maintenance of chip level, the general problems of power supply and the battery does not charge will be in the hands of processing, board level maintenance personnel will not come to us. The motherboard, there are two problems. From simple to difficult, power supply port circuit fault first name power supply port. This is simple. Function is the battery when not in use, and sometimes not shutdown, charging to turn it off. Can tell, the battery and motherboard interface welding will not lead to charge. Fault 4: in general, blocking circuit charging circuit and maintenance problems. In addition to simple damage of the chip itself, damage to the peripheral circuit are also common. For example, a zener diode smaller than sesame seed particles, in the early days of the maintenance work, there is no circuit diagram and figure, repair such a problem is very time-consuming. EC and peripheral circuit itself, the EC is charging circuit IC, open and close as the charging circuit, is not detailed here. Daily check for the laptop is not charging. The function of fault and fault point far beyond the above situation. If you have the wrong laptop, you can read this article. If you can't handle it, you can find more problems on the Internet.