How to repair laptop motherboard no power | laptop repair practical class | Bangla скачать в хорошем качестве

How to repair laptop motherboard no power | laptop repair practical class | Bangla

Today I repair aspire, 5750z model, no power, Mosfet fault am today laptop repair practical class .if you any laptop computer repair easily. some laptop motherboard is not charging and not shart in you now fix today my practical hardware class if you easily fix it. #laptop_Power_Problem_repair_Practical_Class How to repair laptop motherboard no power | laptop repair practical class in Bangla Ashik computer Official website: https://bit.ly/2IAogDS Official Pchelpline page: https://bit.ly/2IRkWHT Please, my Channel: https://bit.ly/2IW04iI Laptop Motherboard Repair Videos LInk How to Repair Laptop Motherboard | Bangla tutorial https://bit.ly/2GNSIJg How to Repair Laptop Battery https://bit.ly/2kqf3DI How to repair Laptop no power | Aspire d255e https://bit.ly/2KVwTtz How to repair Laptop keyboard https://bit.ly/2kqf3DI ------------------------------------------------------------------------------------------------------------ Laptop Repair IMPORTANT Addition A lot of motherboard failures are not a direct result of ―mother Natureǁ or the misuse or even thermal or mechanical breakdown. There are other Not Well Known ways a motherboard component can fail. Packaging and Storage is one. The moisture content and chemical exposure in the packing materials can greatly affect the longevity and stability of the Motherboard and Components thereof. This can cause ―motherboard Warpǁ, it can also deteriorate certain affected components on the board, even damaging the contacts. It will deteriorate the wires and cables making them brittle and fragile, it can cause a lot of harm. Another hidden cause left undiagnosed can be an incorrectly covered trace or land (manufacturer defect). This can cause shorts, it can cause trail blow-outs because the heat generated from the PCBs components will further wear away at the fault areas, causing that component to fail, which for example can throw dc voltage through a path requiring no dc. Another hidden cause left undiagnosed is a solder chip or ball that was left on the board after the manufacturer completed the build on the board. This piece might have stuck to an area on the board having a ―negativeǁ contact, then at some point that chip or ball was knocked loose being knocked around inside the laptop until eventually touching a voltage regulator positive pin armour similar components power contact. Which; in turn, would blow that; or any related component, leaving no Preheat the Underside of the Motherboard Before the reflow process is started, yet, after the chip sealant has been removed, you can begin to preheat the underside of the motherboard prior to reflowing the GPU Chipset. This should be done without moving the motherboard during the reflow process. Meaning, you should only be heating the underside of the board if you can set the motherboard up in such a way so that after the underside is heated, you can quickly move to the top-side where the GPU is to begin heating that immediately without moving the motherboard. Remove Laptop Motherboard Chip Sealant Most GPU Chipsets will have some sort of sealant or glue used on the edges of the chip to secure it to the motherboard (usually red, black, or clear) I have had many successful repairs without removing this sealant, though it is best to remove it prior to reflow to allow the flux and heat to enter. Removal of the sealant should be done as part of the reflow process, the beginning of the process. You begin heating the GPU without the coin-stack, holding the tip of the heat gun roughly 3 inches away from the chip at a 45-degree angle and circling the chip while you heat it. You move around the chip in a circular motion aiming the heat between the chip and board. The best thing to do would be to get the Cone Tip (looks like a 3 tier cake) for the process. Use either the cone tip or an exact fit Square tip for reflowing. Begin heating the chip and monitor the temperature with an Infrared Laser Guided Thermometer (if available) to a temperature of 145 degrees Celcius. REMEMBER that you must insulate any parts or components that will melt or can be damaged from the extreme temperature… This would include any plastic plug ports, CPU Dock, RAM DIMM ports etc... Use tin sheets or Aluminum Foil or similar… No need to wrap the motherboard like a Present though, just the components in the immediate area. It is also a good idea to cover the CMOS battery with guilt or remove if the plug-in type. Once you have reached 145 degrees Celsius, you will use a mini flathead screwdriver to remove Visit my social media: flow twitter:   / ashik98967315   flow FB:   / ahik.islam143   flow FB page:   / ashik.comput   FB group: https://www.facebook.com/groups/35462... Thanks a lot for watching my Laptop Motherboard repair Class