asus vivobook s300c keyboard replacement...technique pressing and melting with the soldering iron....

ASUS VivoBook S300C keyboard ReplacementYou have to disassemble most of the laptop to replace the keyboard. Therefore parts like

motherboard, sideboard, battery, ventilator can also be replaced following parts of this guide. Butthe goal is removing and installing a new keyboard.

Rédigé par: bbc

ASUS VivoBook S300C keyboard Replacement Brouillon : 2016-07-05ID de tutoriel : 63466 -

Ce document a Ã©tÃ© crÃ©Ã© le 2019-10-30 09:37:04 AM (MST).

© iFixit — CC BY-NC-SA fr.iFixit.com de 16

INTRODUCTION

If you keyboard on the ASUS S300C (and maybe many like it) is malfunctioning, this is the guidethat can take you through the process of replacing it.

OUTILS:Phillips #1 Screwdriver (1)Soldering Iron (1)Metal Scraper (1)




Étape 1 — Identifying correct machine

Identify correct machine for thisguide in the label on the bottom.

It might work for similar laptops butdon't blame me if it doesn't

Étape 2 — Necessary tools

You will need one small philipsscrewdriver and a soldering iron.

You will probably also need anothersmall screwdriver and/or a smallwide tool like number two from thetop.

I found it furthermore handy to havea small tweezer for grabbing thescrews and a box to sort the screws.I can't remember where all thescrews came from so it noted it on apiece of paper and put it in the roomwith the screws.




Étape 3 — Removing bottom of cabinet

Remove the 10 screws in the bottom.

There are three different sizes so please take a note of where they are placed

Use your hands or the small straight screwdriver to loosen the bottom and remove it




Étape 4 — Remove the battery

Remove the screws holding the battery.

The battery is beneath two small prongs at the front of the cabinet.

To remove it lift it a little at the backside and pull it out a bit.

Remove the connection to the motherboard by lifting the cable gently. It has been pressed downinto place and must be pulled directly up.




Étape 5 — Removing different connections

Remove the tape that keeps the flat cable (actually the keyboard cable) in place on top of theharddisk.

Pull the wide flat cable out of the connector on the motherboard.

Peel away the black protecting layer to get to the screen connector.

Pull the connector out of the socket on the motherboard.

Étape 6 — Removing the harddrive

Disconnect the cable connected to motherboard and taped to the frontside of the harddrive,remove the tape from the harddrive.

Remove the screws attaching the harddrive and pull the harddrive of the the connector on themotherboard.




Étape 7 — Disconnect sideboard

Disconnect the sideboard (the smaller printboard at the side of the computer).

This connection is removed by flipping up a small retaining flap, whereafter the flat cable easily canbe removed.

Étape 8 — Disconnecting the rest

Remove the protecting layer from the motherboard just beside the ventilator.

Disconnect gently the two small flat cables at the front of the motherboard.

Disconnect the black and white single cables from the motherboard.




Étape 9 — Removing the motherboard 1

Remove the ventilator connection from the motherboard.

Remove the screws retaining the motherboard, that includes two screws holding the ventilator andtwo screws attaching the screen.

By opening the computer a little you can now turn the hinge connecting the screen to thecomputer.

Close the computer again and open the hinge completely, so that it stands at a right angle to themotherboard.

Étape 10 — Removing the motherboard 2

Now if you have removed all screws from it you can remove the motherboard.

But be careful with the connectors to external units on the side. Lift the motherboard a little on theother side and then pull it away from the side with the connectors.




Étape 11 — Removing the screen

Remove the screws on the screen hinge on the other side and repeat the manoeuvre to open thehinge to vertical.

Tip the computer a little leaving the screen on the table. Now you can unhinge the screen and put itaside.

Étape 12 — Remove sideboard

Remove the last screws from thesideboard and remove thesideboard.

Remove the plastic covering thekeyboard underneath. Be careful notto damage the plastic or the cablessticking to it.




Étape 13 — Removing the keyboard

Using a soldering iron melt the plastic keeping the the two small metal plates on the backside ofthe keyboard in place.

Again using the soldering iron melt the plastic keeping the keyboard in place.

This step requires some patience. You have to start at one corner and slowly lift the keyboardwhen the plastic melts.

Don't rip it away with force as the plastic will be torn away and should be used to attach the newkeyboard.

When the keyboard is loose there are still some tapestrips connected it. Remove these and thenremove the old keyboard.




Étape 14 — Inserting the new keyboard

Place the new keyboard exactly likethe old one.

Attach it by using almost the sametecnique with the soldering iron. Thistime though you must press thekeyboard and the cabinet togetherwhile melting the plastic with thesoldering iron.

Again you have to work your waypatiently from one corner til youhave covered the whole keyboard.

Turn the computer around to chechthat everything is in place.

Thereafter also attach the twosmalle metalplates at either side ofthe keyboard using the sametechnique pressing and melting withthe soldering iron.




Étape 15 — Assembling 1

Put the plastic cover on the keyboard placing it carefully so the holes for the screws fit in place inthe holes in the plastic.

Reinsert the sideboard and place the screws in it.





Reinsert the motherboard using the same technique as when removing by angling it a little until theperipheral connectors on the side fit in their holes.

Make sure all connector cables inside the cabinet are on top of the motherboard and not hiddenunderneath.

Place all the screws in the motherboard, here is where the notes about where the different sizes fitcomes in handy.

Connect all the connectors - the sideboard connection, the two small flat cables at the front, thesmall connector by the harddrive, the ventilator cable.

Attach the keyboard cable. This can be a little tricky but be patient suddenly it will fit in place.There is a small plastic pad that it should fit underneath.





Place the harddrive and fasten the screws. The keyboard cable should be underneath theharddrive.

Put the screen back in place and close down the hinges in both sides. Assure that the holes in thehinges are flush with the holes in the motherboard underneath.


Put in the screws attaching the screen, be careful to use the right holes. The are marked with asmall arrow.

Connect the two single cables, one black one white. There are markings as to where they shouldbe attached. Be careful as these cable connectors are a little fragile.

Attach the screen connector.





Reinstall the battery and insert thescrews.

Now you will find out if you put thescrews in the motherboard in thecorrect holes, because the screwsholding the battery also keeps themotherboard in place.

Attach the battery connector. Thisone is attached by pressing it downinto the connector on themotherboard.




I have instructions for reassembly as well

Étape 20 — Assembling the cabinet

Place the bottom plate and put in thescrews.

There is a final test whether you putthe correct screws in the correctholes. If you look through the holesin the bottom plate you should notsee any screws, if you do, you mustremove the bottom again andcorrect your mistake.

When everything is okay, you canput all the screws in place and startworking on your computer again.

Hope this was helpful. I saved mydaughter a quite expensive repair bybying a keyboard on ebay fromChina for 30US$ and doing therepair myself.

Good luck if you are going to try thisyourself. And of course during thisrepair you could have installedanother harddisk, have replaced thescreen or have installed a newbattery. The guide is just as good forthose purposes.




asus vivobook s300c keyboard replacement...technique pressing and melting with the soldering iron....

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