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In the following guide I will take apart an Acer Aspire 4743 series laptop.
In my case the full model name is: Aspire 4743z-4861.
STEP 1.
Make sure it's turned off completely before starting the disassembly process.
Unlock and remove the battery.
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STEP 2.
Remove three screws securing the service cover on the bottom.
Lift up and remove the cover.
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Under the cover you will find the hard drive, wireless card and both RAM modules.
Remove one screw securing the hard drive.
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STEP 3.
Slide the hard drive to the left to disconnect it from the motherboard.
Remove the hard drive assembly from the laptop.
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STEP 4.
Remove one screw securing the optical drive.
Pull the drive to the left and remove it from the case.
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STEP 5.
Remove two screws securing the keyboard.
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STEP 6.
There are five latches securing the keyboard to the top cover.
Push on the latch with a small screwdriver until it moves into the case.
When the latch pushed in, the keyboard will lift up a little bit and the latch will not be able to lock back in.
Do the same with all remaining latches.
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STEP 7.
Separate the keyboard from the top cover and turn it upside down. Place on the palm rest.
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STEP 8.
Now you can access the keyboard cable connector, unlock it and release the cable.
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STEP 9.
Lift up the left side of the retaining tab until it opens up at a 90 degree angle (green arrow).
Pull the cable out of the connector (yellow arrow).
Now you can remove the keyboard completely.
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STEP 10.
Remove shown screws from the bottom case.
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STEP 11.
Remove one screw securing the top cover (palm rest) assembly.
Disconnect the power button cable (left arrow).
Disconnect the touchpad connector (right arrow).
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Unlock the connector by lifting up the retaining tab.
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STEP 12.
Start separating the top cover assembly from the bottom case.
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I'm using a guitar pick to separate two parts from each other.
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STEP 13.
Remove the top cover.
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On the other side you can access both speakers, touchpad and power button board.
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When the top cover removed you can access the CMOS battery and USB board.
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STEP 14.
Before you can remove the motherboard from the case it's necessary to disconnect two antenna cables from the wireless card.
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STEP 15.
Remove one screw securing the motherboard.
Disconnect the display cable and USB board cable.
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Here's how to unplug the display cable.
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STEP 16.
Start lifting up the motherboard on the right side.
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STEP 17.
Remove the motherboard from the case. It comes out with the power connector attached to it.
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On the other side of the motherboard you can access the cooling fan and heat sink.
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In Acer Aspire 4743 series laptops the power connector can be easily replaced.
Simply unplug the cable from the motherboard and replace with a new one.
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