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In this guide I explain how to disassemble a HP G62 or Compaq Presario CQ62 laptop.
I believe that HP G62 and Compaq Presario CQ62 are very similar laptops (if not completely identical). HP has same service manual for both models.
Before you start, make sure the laptop is turned off and battery removed. Let’s take it apart.
STEP 1.
Loosen five screws securing the hard drive and memory covers. Remove both covers.
STEP 2.
Remove three screws securing the hard drive assembly.
The left screw (yellow) also securing the DVD drive.
By the way, both memory modules can be accessed on the bottom of the laptop.
STEP 3.
Lift up the hard drive assembly.
Disconnect hard drive cable from the motherboard.
Remove the hard drive assembly.
STEP 4.
Pull DVD drive from the laptop and remove it.
STEP 5.
Remove six screws securing the keyboard on the bottom of the laptop.
STEP 6.
In order to remove the keyboard, you’ll have to push it through the opening near the wireless card.
You can use a pen or any other stick.
STEP 7.
While pushing on the keyboard through the opening by the wireless card, grab the top side somewhere in the middle and lift it up.
STEP 8.
Turn the keyboard over and place face down on the palm rest.
STEP 9.
Now you can access the keyboard cable connector.
Before you can remove the keyboard, you’ll have to unlock the connector and release the cable.
STEP 10.
Here’ how to unlock the keyboard connector.
Lift up the brown tab with your fingernail. The tab opens up at a 90 degree angle.
STEP 11.
On the following photo the connector shown in the unlocked position.
Now you can release the keyboard cable.
STEP 12.
Remove the keyboard.
If you need a new keyboard for HP G62 or Compaq Presario CQ62 laptop, you can find it here.
STEP 13.
Remove all marked screws from the bottom of the laptop.
These screws securing the top cover assembly.
STEP 14.
Remove one screw securing the top cover.
Disconnect four cables from the motherboard.
STEP 15.
Unlock the touch pad cable connector same you unlocked the keyboard connector.
STEP 16.
After the connector unlocked, pull the cable from the connector.
STEP 17.
Separate the top cover assembly from the bottom assembly.
Continue removing the top cover assembly with your fingers.
STEP 18.
Remove the top cover assembly.
STEP 19.
In order to remove the display panel, you’ll have to disconnect both antenna cables from the wireless card.
Also, you can remove the wireless card. Simply remove one screw securing the card and pull it from the slot.
STEP 20.
Disconnect display cables from the motherboard.
Remove four screws securing display hinges.
STEP 21.
Lift up and remove the display panel.
In the next guides I’ll explain how to take apart the display panel and remove the LCD screen.
STEP 22.
Disconnect two cables from the motherboard.
Remove three screws securing the motherboard.
STEP 23.
Start removing the motherboard as it shown on the following picture.
STEP 24.
Lift up and remove the motherboard.
STEP 25.
On the other side of the motherboard and you access the cooling module (cooling fan and heatsink) and CMOS battery.
Now you can clean up the cooling module or replace the fan if it failed.
New or used replacement fans for HP G62 and Compaq Presario CQ62 laptops available here.
STEP 26.
The DC jack is not soldered to the motherboard. It’s attached to the harness which can be unplugged from the motherboard.
If your DC jack failed, simply disconnect the failed harness and replace it with a new DC jack harness (again, it should be same part for both HP G62 and Compaq Presario CQ62 laptops).
April 16th, 2013 at 8:46 pm
Hi there,
I’ve successfully disassembled the top cover, and replaced the DC jack. Need a new power button ribbon (tech seems to have broken the original one), but I’m having trouble attaching the touchpad ribbon cables to the motherboard. The little offwhite connector ‘locks’ came off, and it’s not obvious how to get them to stay back on. Also, it’s not clear whether the ribbon cables go on top of the pins, or beneath them.
Can anyone help?
March 23rd, 2013 at 8:10 am
@ Teresa,
Remove the laptop battery. Plug in the AC adapter. Can you see any LED light on the laptop when the AC adapter plugged in?
There is a change you have a problem with the AC adapter. When you test voltage on the AC adapter without connecting it to the laptop it’s not always accurate. There is a change the AC adapter shows correct voltage when not loaded but when it plugged in the laptop (loaded) it fails to provide the required voltage. In short, before doing anything with the motherboard I would test the laptop with another known good AC adapter. If the laptop doesn’t work with another adapter most likely the motherboard failed.
Yes, it’s possible. If the laptop shows lights when the AC adapter plugged in but doesn’t turn on there is a chance of failed power button board.
This board is mounted to the bottom side of the top cover.
In order to replace the power button board you’ll have to remove the top cover assembly as it shown in this HP CQ62 disassembly guide in step 18. Remove the top cover, remove the power button board and replace it with a new board.
March 20th, 2013 at 6:05 pm
Presario-CQ62 that is 2 1/2 years old. Had a 2 year extended warranty. Did not use the computer until the last 5 months. I noticed one day when turning on with the on/off button it didn’t seem to want to turn on. Then about a week later…it just won’t come on. I took it to Best Buy, they tested the power cord (it was fine) and they removed the battery to power with cord (wouldn’t power up). So…I am seeing it is probably the mother board. I am seeing some reference to a fuse replacement in inquiries. Is that inside the laptop? Any other thoughts? It never heated up. It is stored when not in use in a case. Just, stopped powering up. Is it possible the on/off button is no good? Why is it, when I buy a warranty the product always becomes junk within 6 months of the expiration? Bummed severely.
March 2nd, 2013 at 1:59 pm
Thanks for the tutorial, I was able to remove big dust clump from my Laptop. The donation is thanks for the help.
March 1st, 2013 at 6:50 pm
Thank you so much! I learned something new and saved money in the process!
March 1st, 2013 at 6:04 pm
Hi I replaced a bad motherboard (with hp replacement). The laptop turns on now, however, the screen is fuzzy and at start up there is a red vertical line that appears about 4 inches from the right side of the screen. It then goes away, however, all the colors are a bit off and blurry. Like what ever is supposed to be white, it now a bright blueish green color. Can you please help?
February 22nd, 2013 at 10:43 am
Hello, thanks for all hard work.
Question is, on this motherboard, here is power fuse?? cant find hem, is near to white power connector on motherboard, is the brown one??
Please, picture it…Please…
Regards.
February 5th, 2013 at 6:02 pm
@ Brandon,
These are wireless antenna cables. You disconnected them from the wireless card in the step 19.
February 5th, 2013 at 3:06 pm
I am assembling a presario CQ62 and cannot locate where to connect the 2 black and grey cables from the monitor to the mobo. Step 21. I am taking your steps and reversing them to reassemble, i did not disasemble the laptop. can you help?
February 2nd, 2013 at 2:34 pm
Ohh my god,,,,,,,,,, thanx for publishing this its a great help……………I changed the fan and battery by myself………amazing Thanks