Question about Toshiba Satellite M45-S331 Notebook

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Used parts I m looking for a used motherboard with the model stated above. do you sell? email:briancdo@gmail.com

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  • Brian Do
    Brian Do Aug 07, 2008

    i m only looking to buy it, sorry.

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This place will help you with taking the laptop apart and rebuilding it:
http://www.irisvista.com/tech/

This is a good place for laptop parts:
http://www.impactcomputers.com/

Posted on Aug 07, 2008

  • Richard Finch Aug 07, 2008

    If you only want to buy the motherboard try the impactcomputers link I gave you, I have bought a lot of laptop parts from them and their prices are very reasonable.

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Grahammcdonald97@gmail.com


I suggest you abandon the above listed email address and start from scratch. Posting your address like that is an invite for spam and harassment and once it is out there you can't take it back. But...To answer your question it is a pretty simple setup done from within your gmail account. Here is the instruction link...
https://support.google.com/mail/answer/21289?hl=en

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Ghow many times I have to state my prolems? ou have NOT found a solution so far!


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Gmail comes with 11 fonts, 70 colors (both for text and highlighting,) four font sizes, bold, italics and underline text styles.

All of these can be used to format an email, but they must be applied manually every time you write an email.

By utilizing Google Mail Labs, however, you can set Gmail to format an email automatically to any text style.

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Scroll down the alphabetical list until you find "Default Text Styling," and then click on "Enable." Scroll to the top and click on "Save Changes" under the Mail Labs introduction.

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http://www.googletutor.com/how-to-change-your-default-font-and-styling-in-gmail/

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How do i replace the voltage regulator on an hpg62 laptop motherboard?


That took a second................

It is an intelligent question, in that the way it was posted.
Way it was deduced, also.

At least I'm guessing this has something to do with your DC to DC Circuit, and not a reference to the Motherboard Voltage Regulator Circuit.

Allow me to explain;

1) The motherboard voltage regulator circuit, regulates voltage for ALL of the hardware components; and electronic components on the motherboard.

http://www.hardwaresecrets.com/article/616

The above link shows direct information for desktop computers, but a lot of it can be transferred over to a laptop motherboard.

You may be familiar with older motherboards, that used a VRM.
Voltage Regulator Module. A replaceable component.
The VRM was used to regulate voltage for the Processor. (CPU)

Later designs, just have the VRM incorporated into the motherboard design.

My thinking is that you are referencing to the DC to DC Circuit.
The circuit that is responsible for charging the Battery when needed, or just having the laptop use voltage straight from the AC adapter. (Charger)

What usually goes out in this circuit is Power MOSFET's.
Occasionally MLCC's too. (That are also SMD/SMT)
Can also be an SMD fuse.

Before I go further, do I assume you have checked the AC adapter (Charger), for 19 Volts DC?

[Center pin of plug TO laptop is the Positive connection.
Cylindrical metal shell on the inside of the plug, is the Negative connection)

The AC adapter plugs into the DC Power Jack on the laptop. (DC_IN)
With the HP G62 model series, the DC Power Jack is attached to wires in a cable; and these wires end in a wide, thin plug connector.

The DC Power Jack itself resides in a Channel, formed in the outside edge of the Base Enclosure. (Bottom Cover)
The plug connector at the end of the harness, plugs into the motherboard.


Although this is a DC circuit, which only requires a Positive, and a Negative; there is more than one Positive wire, that leads to the plug connector.

More than one Negative wire too.
So in testing with your multimeter, observe to which socket holes in the plug connector; get Positive, or Negative wires.

Multimeter set to OHM's (1K), it is not the exact resistance you are looking for, it is JUST that you get a reading.
No reading indicates burnt/broken wire.
(This baby isn't going to have any stretched/broken wires)

http://www.ebay.com/itm/NEW-AC-DC-POWER-JACK-Repair-CABLE-Harness-HP-COMPAQ-G56-CQ56-G62-CQ62-Series-/280762126380?pt=Laptop_Adapters_Chargers&hash=item415eba102c

Here they show separate examples of the plug connector, and DC Power Jack, also ]

Moving on..............

Let's take a look at a DC - DC circuit on the HP Pavilion dv6000, and Pavilion dv9000 series of Notebook PC's; as an example,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

Here we see the;
1) Fairchild Semiconductor Industries - FDS6679 - Power MOSFET, and the,
2) Alpha & Omega LTD - AO4407 - Power MOSFET, is being used.

Posting for further identification, availability, and cost;

FDS6679,

http://www.mouser.com/Search/Refine.aspx?Keyword=fds6679

Here we see it is obsolete.
Using the cross-reference match example FDS6679AZ,

http://www.mouser.com/ProductDetail/Fairchild-Semiconductor/FDS6679AZ/?qs=sGAEpiMZZMshyDBzk1%2fWi1qxDdW%2fXBi2qgMuZEfLVO4%3d

$1.01USD

[Note the J-leads on the sides. There are 4 on each side ]

AO4407,

http://www.mouser.com/Search/Refine.aspx?Keyword=ao4407

Obsolete also. Let's use the first, cross-reference match example given,

http://www.mouser.com/ProductDetail/Diodes-Inc/DMP3020LSS-13/?qs=%2fha2pyFadugQJEAqJYuwC0NlHVHA8ivkIi5yij9Xhac5DoEAek3FbA%3d%3d

78 Cents USD

An MLCC is a Multi-Layer Ceramic Capacitor.
The ones used on your motherboard, are SMD/SMT; just like the Power MOSFET's are.

Surface Mount Device/Surface Mount Technology

Showing a 4.7uF (Microfarad) example, at 16 Volts (DC),

http://www.mouser.com/ProductDetail/TDK/C1608X6S1C475K/?qs=sGAEpiMZZMvQvaS66kI3ThUn76Ya%2fK0CNKDzw9lb9Zc%3d

Looking back at the Mayohardware link, observe the second photo down; with the AO4407 circled in Yellow.

Look to the immediate right of the AO4407. There is an MLCC.
(That is SMD/SMT)
There is one above it. One above that one at the Top. One to the right, and one to the right of it. (Placed vertically)

Appears to be immediately below the AO4407, plus there are 4 smaller examples at the Bottom/Left, of the AO4407.

If you see any that are burned/blackened, replace.

A basic example of an HP G62 motherboard.

I state basic, because the one in your laptop, may have a design change; or may not have the design change this one does.
When replacing USE the SAME HP part number that is on your motherboard.

(Stating HP G62 is just stating the Model Series.
Kind of like stating Chevrolet, and truck, but not the model)

http://www.ebay.com/itm/HP-592809-001-for-G42-G62-SERIES-LAPTOP-AMD-GENUINE-MOTHERBOARD-/160934636711?pt=Motherboards&hash=item257873aca7

The page automatically opens with the Main view, showing a Bottom view of the motherboard. This is where the Processor, graphics chipset, and Ram Memory are.

Looking at the three small views underneath, the 1st view; or view to the Left, is the Bottom view.
Middle view is a view of the Top of the motherboard.
Right view is a view of the Left side of the motherboard.

(You can just SET your mouse in the middle of the main view, and the Zoom In feature will operate.
Now just move your mouse around.

If you CLICK on one of the SMALL views, it will stay in the Main view)

In the Bottom view, look all the way to the Left.
Motherboard turns into a 'peninsula', or just a rectangular strip.
At the end you see the wide Brown connector. This is where the DC Power Harness plugs in.

Pay attention to that round 2R5F.
That is a CSM54N-2R5F. Just wasn't room to put all that cr@p on it.
It is a Fuse. It is SMD.

Those 3 little round 'can's, are Solid Polymer Capacitors. They are Leaded, and of the Radial style. Both leads come out of the same end. If one of these babies are bad, you'll know it. They EXPLODE.
No. They hardly ever go out.

Next to the 2R5F fuse, are Power MOSFET's. Check their condition.

Now go to the Top view. Go to the Right side.
Here you see the opposite side, of that 'Peninsula' of the motherboard.

Make sure there are no burned components on this side.

Was this what you were looking for schmeichel_2?

For additional questions please post in a Comment.
Regards,
joecoolvette

Apr 02, 2013 | HEWLETT-PACKARD HP G62 Notebook

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