The following disassembly guide will explain how to take apart a Sony Vaio PCG-K series notebooks. I created this guide while taking apart a Sony Vaio PCG-K25 notebook but I think you can use the same disassembly steps for all notebooks in PCG-K line.
The main reason to open up the laptop was replacing broken power jack. Proceed disassembly on your own risk.
Update: I just created a new guide for Sony Vaio PCG-K series laptops. It explains how to remove and replace LCD screen with inverter board.
Before you start laptop disassembly, unplug the AC adapter and remove the battery.
Are you looking for spare parts for your Sony Vaio PCG-K series notebook? Search here.

STEP 1
Carefully remove the keyboard bezel using a small flathead screwdriver. Remove it slowly, there is a flat ribbon cable connecting the power button board with the motherboard.

STEP 2
Trun the keyboard bezel upside down. The red arrow pointing to the connecto on the motherboard.

STEP 3
Unlock the connector by lifting up the top side of the connector 1-2 millimeters. Be very very careful. If you break any connector on the motherboard you are screwed big time. After the connector is unlocked, you can pull the cable and remove the keyboard bezel.

STEP 4
Remove three screws from the keyboard.

STEP 5
Lift up the keyboard and place it upside down on the palm rest. Unlock the keyboard cable connector on the motherboard. Disconnect the keyboard cable and remove the keyboard.

STEP 6
Remove all screws securing the metal cover.

STEP 7
Remove the cover.

STEP 8
After the cover has been removed, you can access and clean both cooling fans. You can clean fans with compressed air.

STEP 9
Remove two screws securing display hinges to the back side of the base.

STEP 10
Remove four screws securing display hinges. Unplug the video cable from the motherboard. Unplug both wireless card antenna cables from the wireless card.

STEP 11
Lift up and remove notebook display panel.

STEP 12
Remove hard drive cover, memory cover and modem cover from the bottom of the notebook. Each cover is secured by one screw.

STEP 13
Here’s how you can remove the hard drive. Remove four screws securing the hard drive caddy to the base assembly. Slide the hard drive down to disconnect it from the motherboard. Lift up and remove the hard drive.

STEP 14
Removing memory modules (if needed). Carefully spread latches on both sides of the memory slot. The memory module will pop up at 30 degree angle. Pull the memory module from the slot by the edges.
Removing modem card (if needed). Remove two screws securing the modem card. Lift up the modem card to disconnect it from the motherboard and unplug cable from the side.
Remove all screws from the bottom of the notebook

STEP 15
Remove two screws securing the top cover assembly. Disconnect the touch pad cable connector on the motherboard and unplug the cable.

STEP 16
Lift up and remove the top cover assembly.

STEP 17
Push the CD/DVD drive to the right side with your thumb. Remove the CD/DVD drive.

STEP 18
Remove three screws securing the plastic cover.

STEP 19
Remove the cover.

STEP 20
The power jack is hidden under the metal bracket. Remove one screw securing the bracket.

STEP 21
Lift up the bracket. Now you can access the power jack.

Release the power jack. Now you can remove the old power jack (unsolder from the harness) and replace it with a new power jack.
Home
September 27th, 2008 at 4:22 am
I try to replace the LCD plastic case and front bezel using the guide above. Everything was done and also reassembled. I had removed the unit holding the wificable. But I am sure I recoonected it as it was before.
Now the laptop is not booting up. Can you suggest any help in getting this resolved.
Thanks for all your valuables suggestions in advance.
September 17th, 2008 at 6:55 am
It is realy help full, as i was tring to open from the back, but according to this guide, now it is clear that we have to open it from front.
Thanks again.
September 2nd, 2008 at 2:23 pm
Justin,
First of all, test your laptop with another wireless router, maybe you can find one in a library or somewhere else. If your laptop works fine with another router, it’s likely that your problem is related to your router. Try downloading and installing the latest router firmware, it might help.
If you have the same problem with many different routers, there could be a problem with your wireless card or wireless software. Try reinstalling Wi-Fi card driver.
September 2nd, 2008 at 2:08 pm
hi laptop tech..my wireless signal on my K115S laptop is very poor even though im in the same room with my router..its still low..what should I do?..is the wireless card the problem?..
please help..
thank u..
-justin
August 29th, 2008 at 10:02 pm
This was fantastic!
I had the same problem as Loris; I was cleaning the insides and when I tried to turn it on I was terrified that it wasn’t booting, but it was just the cpu that needed to be re-encased. Thanks so much for this page, and the advice!
-hero
August 29th, 2008 at 9:38 am
Dan,
Make sure the keyboard cable is properly connected to the motherboard. Reconnect the cable.
August 29th, 2008 at 9:32 am
After reassembly, some keys didn’t work:
Enter
[
]
p
;
‘
/
backspace
numlock
pgup
pgdown
end
August 25th, 2008 at 8:57 am
Loris,
Did you remove the heat sink for cleaning? If you did, it’s possible you pulled the CPU from the socket. You’ll have to remove the heat sink again, open the CPU socket, reseat the CPU, lock the CPU and assemble everything back together.
If you remove the keyboard bezel and disconnected it from the motherboard, as it shown on the pictures 3 and 4, make sure the cable is properly connected to the motherboard.
Did you remove memory modules? Try reseating them.
If your laptop was working before you took it apart and is not working after you assembled it back together, most likely it’s some kind of connection related problem.
August 25th, 2008 at 8:45 am
Very good step by step guide. I used it for clening the inside of my PCG-K315S. It worked well.
Just a problem, after putting it back together the laptop get powered up for only 1 second and then shuts down.
I tried several times, but the same happen every time.
Can you advise?
Many thanks.