COMPUTER MOTHERBOARD REPAIR GUIDE PDF IN HINDI

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Computer Motherboard Repair Guide Pdf In Hindi

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Log In Sign Up. Laptop Motherboard Repairing Book. Laptop Motherboard Repairing Book Laptop Repair Complete Guide will give you the new information how to repair the laptop in step by step instruction guide.

Worlds's No 1 concept online laptop chip level laptop repairing course. Laptop laptop. I recently got a job 1. How to Replace Roomba's. Testing E-Books. Laptop Chip Level Repairing institute in delhi india. Your Laptop is indeed your companion, especially when you're on the go. Is there a newly published comprehensive book for pc repair technicians that covers I downloaded The Ultimate Computer Repair Guide and didn't find much on it. Laptop motherboard repair guide Forum, Computer motherboard repair.

Having the ability to repair laptops is VERY important for anyone in the computer lcd tv repairing in hindi free ebooks, motherboard repairing books download. Owning a laptop is convenient, but repairing one can be tough. Before repairing a laptop motherboard, users should diagnose the problem, Write a guide. Chances are that the motherboard needs repairing.

We can help! Also this will be used to brace the Jack when thelaptops lower cases DC Jack holding cage breaks common issue for Toshiba — newer model-laptops. Toothpicks - These have many uses and are a handy tool to have nearby. Used to apply fluxes, used to apply epoxies, also can be used to help plug orunplug certain ribbon cables or thin wire s.

Laptops will use 2 cooling sources…. Either Silver paste or a thermal pad. Pads will be hard to redownload, and silver thermal paste will bereadily available for sale everywhere.

If a part or component originally used a thermal pad, it ishighly recommended that you keep using a pad and not switch it out to using paste… These pads alsoare used to cover a gap which is left for that specific part for thermal expansion and contraction.

I recommend that you do dispose of the cheapersoldering irons after 10 or so uses, or get yourself some Tinner to refresh the tip. Solder - The average Rosin Core Solder will do, get your self 1.

WD40 ismore readily available to download and can suffice. Multi-meter - This can be bought at your local Home Improvement store, and you will find a wide variety of quality choices. For a beginner, it is ok todownload the cheapest Multi-meter to learn its uses and familiarize yourself with it.

Heat Gun The better the quality the better the final results of your repairs will be. On average, you want to use at least a heat gun with switchablesettings… One that will produce temperature of to degrees. There are a lot of differenttips you can download and a lot of different sizes to choose from.

You will download these according to yourspecific needs. Chapter 2Common Parts and Functions of the Average LaptopI will quickly go over all the basic and additional parts and components that make up your laptop. Palm rest - This is the part that you place your hands on when typing, it is basically the whole top-half of the lower half of your laptop —minus the keyboard and media strip. When replacing the palm rest, it is common for the replacementpart to also include the touchpad.

Keyboard - Self explanatory here… If repairing the keyboard, the simplest way is to replace the entire keyboard, though Single keyreplacement parts are readily available on site. Display Screen - This is what produces the images, accessible by removing the front bezel. Cracked screens can not be repaired and doneed to be replaced. CCFL Bulb - This is located in the display panel and will be found on the bottom end of thescreen stretching from the right end to the left end…The CCFL bulb is enclosed in an open end metal tray that hugs the bottom edge of the glass panel on the screen and shinesthe light up through the glass panel to illuminate the entire screen evenly.

Display Cable - These are made specific to each model laptop and are not interchangeable. This part is located inside the Power Inverter -laptop screen, in the middle-bottom of the screen housing.

The screen light plug is made in such a way that you can not reversethe plug and accidentally plug it in the wrong way, rather, it will only plug into the inverter thecorrect way one port is larger than the other.

LED light strips These are the newer source of light for laptops. The light emitted is much brighter and whiter as opposed to the yellowish tint toa CCFL bulb. Media Strip - This part is located directly above the keyboard and will sometimes include the hinge covers with it. It will usually include thepower button, and some lighted icons such as battery monitor, hard drive monitor, 15luetooth and Wi-Fi monitor. Some laptops will allow touch sensitive buttons and some will be push buttons, though allwill be labeled.

This part is usually just a snap in place part, though if it is secured to the laptop, itsscrews will be located in the battery bay and on the underside rear end of the laptop near the corners.

Hard Drive - This is where data is stored, the laptop can use different kinds of hard drives. The SSD is the newest of these three drives. SSD cards are made with no moving parts. This is what makes them differentthan the typical drive. Wi-Fi Card - This can either be located on the bottom side of the laptop most common place or the upper side — under the keyboard. This part is oneof the most stable parts on the laptop and it will rarely fail, so if you are experiencing Wi-Fi issues,you would test all software end issues prior to changing the wireless card.

The brand of the card willbe listed on the sticker of the card, and will help you in determining what driver to use for thatspecific laptop. It is ok to mismatch the color guide for the Wi-Fi antenna wires. Typically the wiresare white and black, and will have colored arrows on the Wi-Fi card showing you what wire toconnect to what site input plug. It is ok to plug the black onto the white port and visa versa as it willstill allow for signal gain of the antenna wires, because remember, they are just that, antenna wires,not power wires which about 60 percent of the laptops shipped out of the Factory come mix-matched— reversed wires from day 1… Ethernet Card - Most laptops will have this integrated into the motherboard, and some will have an extension board that connects to themotherboard.

Used for internet access or networking purposes, every laptop will have one of these onit, whether integrated or a card. Power Button- Usually located just above the keyboard, some laptops will place the power button in differentareas, like the lid of the laptop, or the front of the laptop or its sides. Power buttons can be leverstyle, button style, touch sensitive or switch style. Most common is the push button style. When apower button is pressed, it pushes a button pad on the motherboard or a daughterboard.

The more common style is the hook and latch style. This usesa push-pull lever, or a button to lock and unlock, which releases the lid from the bottom base lockingport slots. So, first look for any screws and remove, then attempt to unsnap them from the bottombase. You must use plastic prying tools to do this to not scratch the laptop.

A guitar pick is a LaptopTechnicians best friend, and you should run to the store right now and download 5 or 10 of them. This will usually have removablecovers located somewhere on it hard drive cover, Wi-Fi port cover, etc…. This extension board is used to stretch Portsto opposite sides of the laptop when it is not possible to use integrated ports.

These will typically beEthernet Extension Boardincluded on the USB extension board though can be on their own boards as well. These are the covers that are located onCase Covers the underside of the laptop. Typically they will individually cover the components separately. Some laptops will combine the covers into 1large cover or 2 separate larger covers.

DC Jack This is where you plug the charger cord into on any laptop. They are typically elongated box shaped having power pins on the rear side andcenter… and grounding pins on either sides. I will discuss repair on this part later in this book. Docking Port These are used more often in an Office atmosphere rather than the typical home. And is not installed on every laptop, rather it is more found on thebusiness end laptops or the gaming laptops.

Wwan is commonly used for corporations or larger sizedbusinesses running cross country or worldwide servers or networks.

A lot of manufacturers of laptopmotherboards will apply the port contact pads but do not install the port due to specific laptop casespecs and the port not fitting certain laptop case configurations. If a laptop does have one, it will usually be located on the upper portion of the front of thescreen.

It will usually have a microphone located right nest to it or nearby. These are almost alwaysstationary cameras and do not move in any way, though there are models that have movable cameras.

Acer has some models that used a spinning camera.

It could rotate up or down, though not left or right. Theyallow the use of external components such as Memory cards, Ethernet Network cards, Modems andsimilar. VGA Out This is a port that will be found on almost every laptop ever released. It is used to connect an external monitor or viewing device to.

It isVideo Out, not Video In. The most common thing to connect to this port is a Desktop ComputerScreen. Itcan pass Video and Audio to and from the television or similar source. Screen Bezel Screen Bezels are the screen frames that cover the front side of the screen. Most bezels will secure to the rear panel by a Snap-Tab connection, often also using screws at all 4 corners and sometimes in the center of the upper andor lower screen bezel.

Screen Front Bezels can also be secured with double sided tape from themanufacturer. Screen Rear Cover This is the shell or lid of the laptop which is the back side of the laptops screen. These can need replacing from abuse to thehinges. The Rear Screen Cover is typically connected to both the hinges and the front bezel, though itcan crack and break if the hinges become loose or weak.

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Battery All laptops have a battery as it is the entire reasoning behind the Laptop itself and its portability ability. Laptop batteries are made withdifferent strength or values. They also make batteries for the same model with different shapes tothem. For instance… A Dell original battery that was sold with the laptop rated at mAH. Thatsame model has the ability to run a better battery; the mAH version, or better yet they offer a or higher… The higher the number, the longer the battery will hold a charge.

Personally I prefer theBump addition batteries because they will lift the rear end of the laptop up in the air which will keepits base cooler. The cordend of the AC Adapter where it plugs into the wall outlet is the AC end of the cord, where voltsare travelling through to the center inverter power box. In this inverter box, the AC current alternating current is converted to DC current direct current , then, travels to the plug tip. They are not really meant to be blasting music from at its highest level.

There aresome models, though, once again in the entertainment and gaming built series of laptops. They willadd subwoofers and tweeters and amplifiers to enhance the audio. It is where you connect an externalmicrophone or headphones or external speaker or even an external amplifier. Printer Port These used to be found on each and every laptop, but now you will rarely find these on your laptop as they are becoming outdated dueto the use of Wi-Fi, USB and Bluetooth.

There are a couple ways to start this process. You must be powered on to eject the optical drive tray or to insert cd into slot. If for some reason you can not get the laptop to boot to the CD, try using a different CD if able to. First, ensure the optical lens that is located directly onthe slide out tray is clean and free of dust or debris.

Next you wouldcheck to see that the hard drive is working and that it is recognized.

It will be present in the BIOSsetup screen list, usually in the advanced section. Also you will need to determine if the operatingsystem you are installing is able to be installed on that specific laptop. Word Of Warning!!!

The Cd Starts XP install will be different than Windows 7 install. With XP, it is a little lessgraphical and will ask you more questions than will Windows 7. In a Windows 7 install, you willstart by choosing Custom install. I never ever recommend doing an Upgrade of any version of OSinstall… simply not needed.

Follow through the prompts and until you get to the screen showing thehard drive partitions. Here you will make a decision to wipe the entire hard drive clean or to savecertain partitions or partial partitions.

If you need to save DATA from the previous Operating System install, then you can leave allpartitions as they are, even if the Windows 7 operating system is an upgrade to what was previouslyon the drive like XP or Vista. Note thatupon completion of the new operating system, that Windows.

Here you will also need to choose what operating system you are installing if using a multi installcd , and you will choose what kernel the OS will run, whether you will use a 32 bit OS or a 64 bitOS. Again, most pirated OS installs will eventually encounter this issue. Assuming you have completed the windows CD install of the Operating System, I will nowdiscuss what goes on after the completed install.

Most OEM Operating System install discs will include most of the correct drivers needed foryour Laptop, and will load and install them upon the initial install of the Windows OS.

Though, mostof the time you will be left with numerous drivers that did not get installed and it will be your job tocorrectly install them. The wonderful thing about the majority of the laptops is that it will not harm the operating systemif the incorrect driver is attempted to install, rather, it will deny the install with a caption showing theerror in incompatibility.

Even if the incorrect driver is installed, it will usually warn you uponreboot, that there is a problem, or you will get a pop up error explaining that the driver installed isnot compatible. You simply uninstall the bad driver or software to correct the issue and continue ontrying other related drivers. Hopefully you have done as I stated earlier and saved internet drivers toallow yourself to easily reinstall them.

Next, you will be allowed tochoose your Laptops model number and series number. There will usually be a list to choose from oran Auto Detect feature on that Web Page. Once at your Drivers Web Page, you can see the list of allyour drivers such as Ethernet, Chipset, Audio, Wi-Fi, BIOS, etc… Download one or all of them, and if needed, you might have to flip through the different operatingsystem versions to find all the drivers… there will be a place somewhere on that page to change whatoperating system version the drivers are for… If installing from a USB device, make sure that you set the BIOSsetting to allow the laptop to boot to that USB device first.

Iwill teach you this way because there is a general rhythm to the placement of the screws and differenttypes used. With all laptops, you will start the disassembling by flipping the laptop over to its bottom side. Removing the battery is the first thing you will do. Now you will start with removing all the screws. You will start at the rear of the laptop wheremost batteries are located most, not all….

Start right in the battery bay and remove all the screwsinside it.

Here you will find smaller screws usually 2 to 8 of them, and typically they are silver orblack in color — usually being silver. Also in some battery bays you will have keyboard securingscrews, these will be removed also at this time. If you like, you can save the screws in one big pile,or you can separate them by size.

If your specific battery is not located at the rear ofthe laptop, you still will remove it, though it will probably not have any screws in its empty bay ifthere are any, remove all of them. Next you will remove all of the screws at the rear corners of the laptop. Typically they will use 1to 3 on each side.

These will be the longest screws used on your laptop, the far corner screws will bethe longest — sometimes being thicker too, then, the ones further inward will usually be a little shorter. Look for any screws at the Hinge Cap area, as some laptops will use 1 or 2per hinge cap to secure the cap to the base, remove them.

While still at the back side of the laptop,look for any securing riser screws. Riser screws are found in areas like the VGA Serial Port or aPrinter Port, look on each side of that port, there will sometimes be riser screws. Remove them usingneedle nosed pliers. Other extension ports on the rear and sides of the laptop will have riser screwsthat need removing and some will be removed with a micro sized flat head screwdriver. Some ofthese riser screws can be left in and still allow for complete removal of all parts, but if you are notsure, you should remove them.

You can now remove any case covers that exist on the laptop in front of you. The photo on theprevious page shows 1 main cover that will cover all accessible components, some laptops use justone, and some will separate them and use 2 to 4 separate covers.

Remove all of them regardless. Note that some laptops will use extra long or extra short screws to secure the covers and if you thinkyou will have trouble remembering the placement of these upon reassembling, then place the screwsfor each separate cover inside that cover and set the covers aside with their screws on them.

Afterremoving these covers, you will remove the components inside their bays. These will include the hard drive, the Wireless card, RAM, and similar. A caddie will wrap the drive or willcover one side of the drive then will be secured with small thick screws usually 2 to 4. Use the installed pull tab on the hard drive toeither slide or pull the hard drive away from the laptop. Some hard drives will be secured to thelaptop and some will not.

Once the hard drive is removed, look in the empty hard drive bay for anyscrews there. Remove any screws in that bay. Next part to remove is any Wi-Fi Card and antenna wires.

You will typically find the Wirelesscard on the bottom side of the laptop. Most models will allow you to leave this card installed andwill not hinder the disassembly process. The Wi-Fi antenna cables are what you want to remove…You will disconnect the 2 or more antenna wires and un-route them from the case track. Thesewires will typically run up to the upper-side of the motherboard and you need to allow them to bepulled away from the upper side by loosening them and untracking them on the underside.

Remove thecard also if needed. Continue on removing the bottom base screws, all along the front of the laptop still on the bottomside , usually there are 4 to 6 in the front, sometimes a sticker or rubber plug is hiding the screw, youwill remove any blocking tab and remove the screw.

Since I mentioned these imprinted icons, I will now elaborate on them and their use. If you lookclosely at the bottom of the laptop, you will see Icons near some of the screw holes.

Typically theRAM has an Icon, the Wi-Fi will also have an icon, the hard drive will have an Icon, the keyboardscrew locations will have an icon, and the cd drive locking hole will have an icon. It is also commonfor a Screw length guide to be located somewhere on the underside of the laptop, either imprinteddirectly into the plastic, or printed onto a sticker.

Once you have removed the screw that secures the optical drive in place you will need to slide it out and set it aside. To do this, you can usually just grab the edge of the drives faceplate and gentlypull it outward.

Some laptops will not be so easy and you will need a plastic pry tool to pull itoutward use a guitar pick. Once the drive is removed, you will look for any screws on the empty bay that would secure thelower base to the upper palm rest… some laptops will use 2 to 4 screws here.

Another thing to check while still on the bottom side of the laptop is whether the Fan and Heatsink assembly needs to be removed prior to motherboard removal. And one hidden in theWi-Fi bay, both screws are silver in color and need to be removed. Take a minute to look for anyhidden accessible screws on the underside of the laptop, removing them all, then double check all theopen bays on the underside for remaining screws, like the hard drive bay where it is common to place1 to 4 screws there.

So start the upper half disassembly by removing the hingecaps using a micro size flat head screwdriver or using a plastic pry tool recommended. The photo above showsyou where the hidden 2 screws are on the Gateway Ma3 and Ma7 that secure the keyboard to thebase. Removing this strip can sometimes be a little tricky, Dell makes it easier by addinga pry access area on the right side of the strip, you stick your pry tool in it and pull upward to unsnapthe strip of plastic.

Most of these strips will be snapped on and you will need to pull outward whileslightly pulling up and down on the area you are unsnapping to release the tab locks. Note that some laptops like the Toshibaalso have a thin plastic snap strip just above the keyboard that need removing prior to removing hingecaps or keyboard. To remove these, ensure all bottom side screws are removed, then, use a plastic pry tool or amicro flat head screwdriver.

Other models like the Compaq Presario will have a rectangular piece that completely surroundsthe keyboard, and in order to remove the keyboard, you will need to unsnap this part and set aside. You must be very careful when removing or unsnapping any part on the palm rest area because itcould have wires, ribbon cables connected to it and they are extremely fragile.

This Presario has aribbon cable on the rectangular piece discussed here and it is located on the upper bar of the piece,which travels under the keyboard and plugs into the motherboard. Then you can now also remove the rectangular keyboard frame and set aside. The Above Photo shows the most common keyboard ribbon cable motherboard connectionlocking tab port.

Use your Pry tool to gently pull the left and right locking tabs upward away from theport. You will now be able to slide the cable out. Keyboards will sometimes have securing screws at the top and will need to be removed. These are smaller screws than what you will find on the underside of the laptop. Some laptops willuse locking tabs instead of screws and the photo shows these tabs slide up and down to lock andunlock the keyboard in place. Another way some manufacturers secure the keyboard is by using springloaded tabs that protrude from above the keyboard and will extend over the keyboards upper tab.

Torelease the keyboard from these you will need a plastic pry tool or a micro size flat head screwdriverto depress the spring loaded tabs usually 4 of them and simultaneously use a secondary pry tool topull the keyboard upward and away from the spring loaded tab continuing to release all 4 tabs, thenlifting the top of the keyboard upward and away.

You need to pay attention here… When removing the media strip above the keyboard, youMUST be careful not to pull any cables in the process. I will give you an example. This HP DV laptops media strip has 2 fragile black ribbon cables attached to it and a fragilespeaker plug wire, these need to be disconnected before you can remove the part, and if you pull toaggressively you will damage the cables.

With these parts removed, you will first look for any screws in the empty keyboard bay on thepalm rest. There are typically 1 to 6 screws here, also look everywhere else on the upper half forscrews and remove all. The screen will get removed now as well. You will unplug all wires orcables coming out of the screen. These will include the display cable, the Wi-Fi antenna wires, theWebcam cable, Microphone cable and any other that might be there.

The Wi-Fi cables will also beplaced in a track along the upper palm rest and you will un-track these and pull the ends through fromthe bottom side. Unscrew the display hinges to release the screen from the lower half of the laptopand it should now pull away freely.

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Note that some laptops will attach the display cable differentlythe most common type of cable plug is one that pulls straight upward to release the cable, yet, othertypes will need to be pried outward from their casing port. You will need to determine yours andslowly unplug the cable.

If it gives any resistance, you should double check to ensure you areremoving it correctly. The ones that pull outward will always have a pulling plastic tab attached tothem to help you easily pull it apart. With the screen hopefully removed now, you will again lookover the entire palm rest for any remaining screws.

Let me also say here that on models such as the HP dv you will have to remove the 2 Riserscrews that are located on the bottom side and exactly next to the Wireless card port, these need to be removed before the palm rest can be removed.

So look for strangely placed screw locations on boththe bottom and top before removing the palm rest. The typicaltouchpad ribbon cable connection port will be the slide locking tab type, and you will gently slideboth left and right sides of the locking tab upward to release the cable.

Look around the exposed areas of the palm rest and carefully unplug any cables that you can see. Also untrack any remaining cables or wires away from the palm rest. You should now be ready toremove the palm rest from the lower base.

Most all palm rests will be snapped down to the base and to remove the palm rest you will needto unsnap all the tabs. To do this, you will use a guitar pick or similar plastic pry tool, starting at acorner and making your way around the entire palm rest to unsnap all the locking tabs.

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You shouldnow be able to pull the palm rest away from the bottom base of the laptop. You will be left with thebottom base and motherboard.There are a couple ways to start this process. The mostcommon would be a faulty DC Jack. If for some reason you can not get the laptop to boot to the CD, try using a different CD if able to. They are typically elongated box shaped having power pins on the rear side andcenter… and grounding pins on either sides. Screen Bezel Screen Bezels are the screen frames that cover the front side of the screen.

XP install will be different than Windows 7 install. You will first want to remove the retaining screws that secure the screen side rails to the screen. This usesa push-pull lever, or a button to lock and unlock, which releases the lid from the bottom base lockingport slots.

Once at your Drivers Web Page, you can see the list of allyour drivers such as Ethernet, Chipset, Audio, Wi-Fi, BIOS, etc… Download one or all of them, and if needed, you might have to flip through the different operatingsystem versions to find all the drivers… there will be a place somewhere on that page to change whatoperating system version the drivers are for… If installing from a USB device, make sure that you set the BIOSsetting to allow the laptop to boot to that USB device first.

Motherboard Chip Level Service Manual I live in Italy and i am fluent in both English and Italian but when i go to youtube to search for chip level motherboard repair training i get videos n urdu, hindi etc.