Troubleshooting some problems with a laptop. This system does NOT have the following issues: -ac power jack malfunction -cpu overheat -chassis/shielding short circuits -display problems, LCD connectivity or anything related The problem: -The computer simply shuts itself off after being moved just slightly, or it eventually powers itself off when use after 5 to 10 minutes of normal use. -most likely something wrong with the motherboard What i have attempted so far: -Laying the laptop on its screen side has been the only way to get the laptop working continuously without powering itself off. I was able to have this computer running steadily for 3 hours while it was layed in this awkward position. - this computer only runs properly in a certain position or it will not boot, sometimes slightly bending the mainboard upwards solves this, or putting something beneath the mainboard to apply just little pressure upwards (i used cardboard) has helped. I did my best not to put too much strain on the solder joints or traces which may cause a mircro-crack. My theory & question: 1 The issue i believe is due to something wrong with the motherboard and is electrical in nature. Something has a poor electrical connection, a trace is damaged, or a component has a cold joint. How should i pinpoint the part of the mainboard that needs soldering? Which is the most likely component that has failed? I have taken a good look at this mainboard through a microscopic lense in an electronics lab, and …

Toshiba Satellite a75-S200 power jack repair by oncall258

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Troubleshooting some problems with a laptop. This system does not possess the following topics:-ac power jack malfunction-cpu overheat -chassis/shielding Short-display problems, LCD connection or something related, the problem:-The computer will shut off just after he moved only slightly or it eventually powers itself off when for the use of 5 to 10 minutes in normal use. -probably something with the motherboard What I've tried:-put the laptop on theSide of the screen is the only way to get the laptop working continuously without the system itself have been made. I was running on this computer continuously for 3 hours while it has lain down in this predicament. - This computer only runs properly in a certain position or it will not boot, sometimes slightly bent to the motherboard to the top solves this, or by something under the motherboard but little upward pressure, (i used cardboard) has contributed. I did my best not to put too muchStrain on the solder joints or traces that a mircro can cause crack. My theory & Question: 1 The question that I believe is due to something with the motherboard and is electrical in nature. Something has a poor electrical connection, a track is damaged, or a component has a cold joint. How should I determine the part of the motherboard that needs to be soldering? What are the most common component, which has failed? I've taken a good look at this motherboard through a microscopic lens into an electronicLaboratory, and I found nothing.