Question about Compaq Presario Cq62-238dx Notebook Pc

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My Compaq Presario CQ62 is really slow?

It is really running slow.It shutdown and log on super slow.

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Posted on Jan 02, 2017

  • 57 Answers

SOURCE: how to open the screen of compaq presario

If you are unsure of this pls dont open the screen as it would add more problems. Better go to the service center and have your laptop check by a trained and qualified technician. This would certainly solve your problem and not adding to it.

Posted on Jan 30, 2011

  • 241 Answers

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Posted on Feb 28, 2011

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SOURCE: touchpad and extern mouse working

Try this website to down load a .pdf manual for your laptop.

Look closely at the touch pad, in the top left hand corner of the pad you should see a little white led shining away.

Tap the led twice, it should turn orange, you've disabled your touch pad, to re-activate it, tap it twice again, this should bring the white led back on.

Posted on Apr 14, 2011

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SOURCE: my compaq presario cq62 wont turn on i bought a new power chord but it still does nothing

Shane, new power cord? Does this mean the old one was bad?

Do I assume you used a multimeter;
1) To test the voltage output of the AC adapter (Charger),

2) And had an assistant gently wiggle the cable TO laptop, and power cord TO AC adapter; to see if there was an intermittent reading on the multimeter?

[The Center Hole on the plug end of the AC adapter cable TO laptop, is the Positive connection. The outer cylindrical metal shell of the plug, is the Negative connection.
You should be reading 18.5 Volts DC.

An economical multimeter can be purchased for as little as $5 to $12. Available in a multitude of stores. An auto parts store is but one example. I have seen them on the checkout aisle racks, of large discount stores.

The Positive (Red) probe lead is inserted into the multimeter, in the Red hole that has DC Voltage next to it. (DCV)
The Negative (Black) probe lead is inserted into the Black hole ( - )

The Function knob is set to DC Voltage. If just a symbol, the symbol is a dotted line over a solid line.
IF there is more than one DC Voltage scale, the Function knob is set to the 0 - 50 Volt scale. { 0 to 50 ]

AC adapter checks OK?
Then check the DC Power Jack.
The DC Power Jack is the jack on the laptop, that the cable from the AC adapter is plugged into. (DC_IN)

AC adapter removed, ('Natch), and Battery.
Use a No.2 pencil, and it's eraser, to see if you can gently move the Center Pin, in the DC Power Jack.
ANY perceptible movement means replacing the DC Power Jack.

However good news. The DC Power Jack is NOT soldered directly to the motherboard.
It is a DC Power Jack that has wires coming from it, and the wires end in a small white plug.
This assembly is called a DC Power Harness,

All you have to do is partially disassemble the laptop, unplug the DC Power Harness plug from the motherboard, and replace,

USE AN ESD wrist strap, and connect it's alligator clip to a good ground source.
I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.

You can also set a large metal serving plate (Unpainted), on the table you are working on, and connect to it.
Or a large metal knicknack. (Unpainted)

Use a mutli-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.
SOME screws look VERY similar to other screws.
Advise do NOT mix them up.

(Just so you have it in case you need it for the future, )

HP Support > Compaq Presario CQ62 series of Notebook PC's > Manuals > Service Manual, (Free),

Click on the first file listed -
Compaq Presario CQ62 Notebook PC and HP G62 Notebook PC -
Maintenance and Service Guide

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the above file name it may take up to 30 seconds, before the first page comes up.
(The file is downloading in the background)

AC adapter checks out, DC Power Jack checks out?
Check the Power On switch.

The Power On switch is pressed with the Power On Button.
The Power On switch is part of the Power Board,

This part separates the user from the tech. There are 6 wires in that flat cable. (I believe 6) There are 6 contact pins in the motherboard connector, for those 6 wires. TWO of those contact pins turn the laptop on. A tiny flat tipped Jewelers screwdriver, is used to MOMENTARILY touch the two contact pins.

{The Power On switch is a Momentary Contact Switch }

Laptop comes on you have a bad Power Board.

Laptop does not come on;

One or more Power MOSFETs may be bad, and may include bad Ceramic Capacitors (MLCC) for the Power MOSFETs.
Information using HP Pavilion dv6000 series, and Pavilion dv9000 series Notebook PC's as an example,

Yes, motherboard replacement

For additional questions, or to have me clarify anything I have stated, please post in a Comment.


Posted on Nov 08, 2012

  • 8 Answers

SOURCE: My Compaq Presario CQ62-225NR keeps

The most and perfect way to stop this is by cleaning your computer virus. Scan your system and remove all the viruses.

Posted on Oct 21, 2013

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My compaq presario CQ62 is stuck in logging off mode. I can't turn it on or off. How do I get out of this?

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