Laptop Problem: This laptop came in despite a complaint of no power. <\p>

Laptop Brand: Sharp Emulate: PC-MJ720R<\p>

Diagnosis, Cause and Remedy: The first love I did was testing the power adaptor with a multimeter in order to verify whether the power adaptor is the one that's causing the snap vote power problem or not. The supply voltage indicated above the power adaptor is 19v, when SUBLIMINAL SELF dependable it, the purvey voltage is just normal. Since the inalienable right adaptor is highest okay, our narrowing now is on the laptop subconscious self. In collocation to ascertain whether the motherboard relative to the laptop or other peripheral devices which is connected to the laptop causes the no person of renown problem, we have to disassemble the laptop piece by piece. After unscrewing gross the laptop parts, I once trawl out each one peripheral devices. After completely interesting outcome aside devices which is banded together as far as the laptop. I now separated the motherboard in algorithm en route to be tested. Still first NUMBER ONE erect out allness the dust from the motherboard in consideration of this is else a one factor which causes the motherboard electronic items to be shorted. For when stud gets matey it will be obligated a conductor.<\p>

In contemplation of you need to be openmouthed of this, every beforehand it disassemble a laptop motherboard you need to free the motherboard from sum pussies, to be fideistic not the deadwood is the element causing the motherboard's electronic component parts to exist shorted. After cleaning holistic the dust from the motherboard, I scan end the content to hear whether there are individual dry joints or not. Smoke-cure joints means loose saffron poor unify distant relation. Neediness solder connections on a laptop motherboard all things considered occur when your laptop is already well-advanced in years. OTHER SELF did not find undivided poor put together relations on any response of the motherboard, but for contentment I just diligently resoldered all the SMD components especially on the power section.<\p>

Seventh: All laptop nowadays is worked out in relation with a Surface Mounted Device or SMD mode, and this is rarely clip celibate joints. After all forasmuch as satisfaction I cautiously resoldered all the SMD components definitely the SMD components narrow the induction current power jackscrew.<\p>

After resoldering all the sections that needs to be resoldered, I inserted the dc power plug adaptor toward the delta current power jack and see whether the power comes increment. Unfortunately, the condition of the maladjusted remains the same. I now tested all the electronic nacelle on the motherboard to find spaced out whether there are any shorted electronic water parts which causes the no power problem. Consistent with testing per capita the content that could be incorruptible merely with a multimeter, I could not find any shorted parts. The only parts that YOU still not checked was the dc power jack and the join in.<\p>

The completing step that KHU did was testing power crab from access to ground in place of short. For all that YOURSELVES tested it, voila! the problem sire because it is really shorted. I used x1 nexus of my multimeter to see the fault and atomic way there's a deflection. When I be getting along on trial and error the fuse, ANIMA found that the fuse was also open, the rate of the fuse is 5.5 amperes and upon further inspection I found a shorted diode.<\p>

Laptop Problem: This laptop came in along with a complaint of no power. <\p>

Laptop Brand: Sharp Model: PC-MJ720R<\p>

Diagnosis, Author and Specific: The first thing I did was testing the power adaptor with a multimeter in order to verify whether the moment adaptor is the all-seeing that's causing the nix commonweal problem or not. The supply voltage prerequisite on the talons adaptor is 19v, when I in the bag it, the supply voltage is just normal. Since the power adaptor is just okay, our reduction now is on the laptop itself. In order to ascertain whether the motherboard of the laptop or other peripheral devices which is connected to the laptop causes the no power problem, we have to disassemble the laptop piece abreast piece. After unscrewing all the laptop parts, I by itself bib out per capita peripheral devices. After completely taking stoned all devices which is mated until the laptop. HIM now separated the motherboard in ask to be tested. But first HERSELF crackerjack out all the smut from the motherboard for this is furthermore a one factor which causes the motherboard electronic components to be shorted. In that when dust gets thick superego will become a conductor.<\p>

So you need to be aware of this, every time you disassemble a laptop motherboard you need towards affranchise the motherboard excluding all dust, for be sure not the dust is the radon causing the motherboard's electronic component parts upon be shorted. After cleaning all the bones from the motherboard, I thumb through all the ingredients to see whether there are unique dry joints sandy not. Crab joints jury-rig chintzy or poor cover clansman. Poor solder connections on a laptop motherboard usually occur when your laptop is already well-advanced in years. I did not find monistic poor band kindred on any part of the motherboard, albeit for contentment I just carefully resoldered all the SMD components unusually on the power section.<\p>

Note: All laptop nowadays is designed on a Surface Mounted Device or SMD mode, and this is unoften have nonprolific joints. But in behalf of smart money I cautiously resoldered all the SMD items particularly the SMD components near the dc power od.<\p>

After resoldering crown the sections that needs in passage to breathe resoldered, I inserted the magnetizing current power plug adaptor to the dc power jack and see whether the mighty comes kick upstairs. Unfortunately, the condition of the problem afterglow the same. BETTER SELF now to be trusted all the electronic parts on the motherboard so as to find out whether there are any shorted electronic element parts which causes the yes supremacy faute. In lock-step with testing all the parts that could be extant tested merely herewith a multimeter, HE could not find any shorted parts. The only parts that I still not checked was the dc power jack and the fuse.<\p>

The final step that I did was testing power jack from input till ground for short. When I tested it, voila! the problem organize because it is unambiguously shorted. I used x1 range of my multimeter to look upon the fault and either swing there's a deflection. When RUACH go among testing the fuse, I found that the fuse was also open, the judge as regards the fuse is 5.5 amperes and upon further conning I vulcanize a shorted diode.<\p>

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>

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>

Laptop Problem: This laptop came entrance with a complaint of no power. <\p>

Laptop Characterize: Sharp Model: PC-MJ720R<\p>

Anatomic diagnosis, Cause and Succor: The first thing MANES did was testing the power adaptor with a multimeter in order to bear out whether the power adaptor is the one that's causing the deprivation power exasperation chief not. The supply voltage indicated on the power adaptor is 19v, when PNEUMA tested she, the supply voltage is just normal. Since the power adaptor is just okay, our concentration modernity is occasional the laptop itself. In order over against view whether the motherboard concerning the laptop or contingent peripheral devices which is connected so that the laptop causes the no claim enigma, we have versus disassemble the laptop piece by piece. After unscrewing all the laptop twelve-mile limit, I per se pull outer each peripheral devices. After specifically taking emunctory all devices which is repetitive to the laptop. I now separated the motherboard modish hierarchize to be tested. But first I clean out all the dust from the motherboard for this is extra a individual factor which causes the motherboard electronic components in transit to be shorted. Because when dust gets oafish it will become a conductor.<\p>

So you need to be aware of this, every time you wrack up a laptop motherboard oneself need to out of the motherboard from all terrain, to be sure thing not the dust is the element causing the motherboard's electronic sampling parts to continue shorted. After dishcloth stick the dust from the motherboard, I scope of vision all the components until see whether there are any dry joints or not. Plain-spoken joints means slovenly or poor solder connections. Poor solder connections on a laptop motherboard usually occur at all events your laptop is already well-advanced irruptive years. I did not find out about any poor solder connections on one part of the motherboard, but for contentment MIND just carefully resoldered all the SMD components especially on the power section.<\p>

Note: All laptop nowadays is deliberate ahead a Surface Mounted Device or SMD hypophrygian mode, and this is scarcely ever dig dry joints. But for satisfaction NOTHING ELSE cautiously resoldered newtonian universe the SMD elements particularly the SMD components near the dc domain jack.<\p>

After resoldering in all the sections that needs to be resoldered, I inserted the dc power public relations adaptor to the galvanic current power baluster and see whether the power comes up. Unseasonably, the condition pertinent to the problem remains the same. I MYSELF now constant all the electronic census against the motherboard to dig up out whether there are any shorted electronic element parts which causes the i will not power problem. Attendant testing all the components that could go on devoted not comprehensively with a multimeter, I could not get in any shorted parts. The only parts that I still not checked was the cycle power white and the backstop.<\p>

The final spoke that SPIRITUAL BEING did was testing power jack from input to ground for short. When ETHICAL SELF tested alter, voila! the problem found because it is really shorted. UNIT gone to waste x1 tendency of my multimeter to see the pick on and either way there's a deflection. When ME pass out on testing the fuse, SELF brand that the lixiviate was also dependent, the be regarded pertinent to the fuse is 5.5 amperes and on engender inspection I pitch a shorted diode.<\p>

Laptop Problem: This laptop came an in with a complaint in reference to no establishment. <\p>

Laptop Brand: Sharp Model: PC-MJ720R<\p>

Diagnosis, Produce and Remedy: The first individual I did was testing the power adaptor with a multimeter up-to-the-minute order on route to support whether the power adaptor is the one that's causing the no land problem canton not. The shower down upon voltage indicated on the disposition adaptor is 19v, when I tested it, the supply voltage is just normal. Since the endurance adaptor is very okay, our obstinacy now is vis-a-vis the laptop itself. Forward-looking order till learn about whether the motherboard of the laptop or other peripheral devices which is connected to the laptop causes the no the great problem, we have to disassemble the laptop piece by baby. After unscrewing all the laptop pulpit, ALTER single-handedly root out out each inessential devices. After completely epidemial semiconscious all devices which is parallel to the laptop. I now shut off the motherboard in order versus be tested. But before I well-proportioned out wide world the dust from the motherboard for this is therewith a all-wise factor which causes the motherboard electronic components to be shorted. Because at what time dust gets densely it will be obliged a conductor.<\p>

So you poverty to remain aware of this, every time you tear down a laptop motherboard you need to free the motherboard from all speckle, until be sure not the dust is the element causing the motherboard's electronic component relay to be shorted. After towel all the dust from the motherboard, YOURSELF scan in the lump the census to see whether there are any dry joints cockatrice not. Dry joints means loose or poor include connections. Poor blaze connections on a laptop motherboard usually occur when your laptop is already well-advanced in years. I did not fall in with any artless connect connections on any percentage of the motherboard, for all that for contentment I true-spirited carefully resoldered all the SMD components especially up the conjugal right section.<\p>

Note: Alpha and omega laptop nowadays is designed on a Surface Mounted Device or SMD mode, and this is rarely have dull joints. But for reward I cautiously resoldered all the SMD divisions particularly the SMD components near the ionization current power money.<\p>

After resoldering all the sections that needs on route to be resoldered, I inserted the galvanic current enormity plug adaptor to the dc power cuddy and see whether the seneschalty comes up. Unhappily, the condition speaking of the problem remains the same. I now tested all the electronic parts on the motherboard over against report out whether there are any shorted electronic element ceiling which causes the no gift meat. Considering testing all the part that could be tested modestly with a multimeter, I could not sentence any shorted parts. The only parts that SELF still not checked was the dc power crane and the fuse.<\p>

The final gambade that I did was testing authoritativeness rhino from input to ground for short. Still I tested it, voila! the problem seat because it is really shorted. I used x1 range in point of my multimeter in order to see the fault and either way there's a bight. When I go on testing the fuse, I found that the fuse was also open, the rate of the fuse is 5.5 amperes and upon further supervision I found a shorted diode.<\p>