In this post I show how to disassemble an Acer Aspire 7551G laptop.
I will be taking apart the base and removing the motherboard.
It’s possible this guide will fit some other Acer Aspire models. If it works for you, please mention the model number in comments below.
Before you start the disassembly process, make sure it’s turned off and battery removed.
NEXT 4 STEPS EXPLAIN HOW TO REMOVE THE HARD DRIVE, MEMORY AND DVD DRIVE.
Remove four screws securing the hard drive and memory cover.
Lift up and remove the cover.
Remove one screw securing the hard drive caddy.
Slide the HDD assembly to the left to disconnect it from the motherboard.
Lift up and remove the HDD assembly.
If you are replacing the hard drive, you’ll have to transfer the mounting caddy to the new drive.
My Acer Aspire 7551G had a regular 2.5″ SATA HDD installed.
Both memory slots located on the bottom.
Remove both memory modules.
Remove one screw securing the DVD drive.
Pull DVD drive to the left and remove it.
NEXT 7 STEPS EXPLAIN HOW TO REMOVE THE KEYBOARD.
You’ll find six latches securing the keyboard on the top.
Push each latch into the case with a screwdriver and at the same time lift up the keyboard a little bit so latches stay inside.
Lift up the keyboard and place it upside down on the palmrest.
Now you can access the cable connector underneath the keyboard.
You’ll have to unlock the connector, release the cable and only after that remove the keyboard.
On the following picture the connector shown in the locked position.
In order to unlock the connector, lift up the left side of the brown locking tab. The tab will open up at a 90 degree angle.
On the following picture the connector shown in the unlocked position.
Now you can pull the cable from the connector.
Finally, lift up and remove the keyboard.
Now you can replace it with a new one if needed.
NEXT 9 STEPS EXPLAIN HOW TO REMOVE THE MOTHERBOARD.
Remove all screws from the bottom.
Remove five screws securing the top cover assembly.
Disconnect the following cables from left to right:
– power button cable.
– touchpad cable.
– speaker cable.
Lift up one side of the top cover assembly and start separating it from the base.
Remove top cover assembly.
I’m going to remove the motherboard so it’s necessary to disconnect wireless card antenna cables from the card.
You can leave the wireless card attached to the motherboard.
Disconnect the video cable from the motherboard (top left arrow).
Disconnect the USB board cable from the motherboard (bottom right arrow).
By the way, when the top cover is remove you can access the CMOS battery.
Acer Aspire 7551G uses a regular CR2032 3V CMOS battery which can be easily removed and replaced.
Lift up the right side of the motherboard and start removing it from the base.
Before you remove the motherboard you’ll have to unplug the DC jack harness.
The motherboard has been removed.
You can access the cooling module on the bottom side of the motherboard.
The cooling fan attached to the heat sink.
In order to remove the cooling module you’ll have to loosen six screws and unplug the fan cable from the motherboard.
After that you should be able to separate the cooling module from the motherboard and remove it.
In Acer Aspire 7551G the DC jack is not soldered to the motherboard. It’s attached to the power harness.
The failed DC jack harness can be easily removed and replaced with a new DC jack harness.