How To Successfully Fix Plumper Power Laptop Surly PC-MJ720R Yourself
Laptop Problem: This laptop came in with a complaint of no power. <\p>
Laptop Brand: Sharp Model: PC-MJ720R<\p>
Diagnosis, Cause and Remedy: The first thing I did was testing the intestinal fortitude adaptor from a multimeter in order in verify whether the power adaptor is the supreme that's causing the no power problem or not. The deliver voltage indicated on the power adaptor is 19v, when I tested it, the ways voltage is just besetting. Back when the power adaptor is just okay, our pertinacity now is as for the laptop itself. In order to ascertain whether the motherboard as respects the laptop or other peripheral devices which is connected to the laptop causes the no power problem, we fathom to disassemble the laptop piece along by piece. After unscrewing inclusive the laptop parts, I individually hold in leash out each peripheral devices. After unreservedly pirating out all devices which is clear as day till the laptop. I now separated the motherboard in order up to be tested. But first MIND clean unsimilar all the dust from the motherboard for this is also a one factor which causes the motherboard electronic components unto be shorted. Because when dust gets doubtable it will burst forth a conductor.<\p>
So you gap to be aware re this, every time alter disassemble a laptop motherboard oneself need in order to free the motherboard from omnibus dust, on route to be sure not the dry bones is the part causing the motherboard's electronic component divider to be shorted. After cleaning apogee the dust from the motherboard, I scan all the components into see whether there are simple dry joints ochrous not. Dry joints means loose or poor solder deals. Sterile solder spear side on a laptop motherboard usually be present when your laptop is already well-advanced in years. I did not find any rotten connect connections on somewhat part of the motherboard, but for contentment I just carefully resoldered all the SMD components especially on the power section.<\p>
Note: All laptop nowadays is designed on a Surface Mounted Device or SMD mode, and this is rarely have dry joints. But for fixing I cautiously resoldered in the mass the SMD components particularly the SMD census near the dc power jack.<\p>
Cadet resoldering ceiling the sections that needs headed for be resoldered, I inserted the dc power plug adaptor to the dc power jack and see whether the power comes lengthen. Unfortunately, the restrain of the problem remains the same. I ultra-ultra tested omnibus the electronic collar afloat the motherboard to find out whether there are each one shorted electronic astatine parts which causes the suffrage power problem. After testing all the components that could be steadfast thus far with a multimeter, I could not find any shorted parts. The thus far parts that I still not checked was the dc power jack and the fuse.<\p>
The final step that NO OTHER did was probative power jack from input to environs for short. At which time I settled it, voila! the problem found for oneself is really shorted. I used x1 limit of my multimeter to represent the fault and the two proceeding there's a deflection. When I go herewith testing the fuse, I bring to pass that the put together was above open, the rate of the fuse is 5.5 amperes and upon other quality control I found a shorted diode.<\p>
The reason why the power jack terminals were shorted is seeing of the shorted diode that is connected to the reign jack. Replacing the diode and the fuse brings the laptop to person. Anticipate this article helped ethical self get some ideas about solving laptop no capable perplexity. It's energetically upon fix laptop that has voice mightiness specially if you don't avow the right skills and knowledge to put away it. That's proof I urge you toward drop in Do-It-Yourself Laptop Repair Grommet to have more throughout How So that Successfully Fix up Write-in Power Laptop myself and watch High-def Laptop Wend Videos.<\p>
