Just an example. Search for the best price, and a reputable dealer.
A) Remove ALL power. Remove the AC adapter (Charger), and Battery.
B) In the Irisvista link above, click on the photo shown in Step 6.
Look at the Battery Compartment area at the top.
Note the two rubber 'feet' on each side.
The 3 screws that are circled in Red, and are to the inside of the rubber feet, should be removed. I think they hold the Keyboard Securing Strip on.
C) Follow Steps 8 through 12 on the Irisvista link above.
(You are on Page 1.
Page 1:: Page 2:: Page 3:: Find another model, is on the top of the page, and bottom of the page in White.
A note on the Keyboard Cable;
The Keyboard cable STAYS attached to the Keyboard. It removes from the motherboard's connector.
The Keyboard cable is a FFC. Flat Flex Cable. This is one general example of a Flat Flex Cable,http://en.wikipedia.org/wiki/File:Flat-Flex-Cable.jpg
The thin metal strips on the end of the cable, (Will be motherboard connector side), are contact pins.
This end of the cable slides into the motherboard connector. It is on the opposite side of the Keyboard.
Before removing the Keyboard Cable from the motherboard connector, you may wish to make a mark on one side of the cable; and a matching mark on the Same side of the motherboard connector. (Sharpee?)
Even if the cable was twisted from the factory, it MUST go back the same direction it was removed.
The motherboard connector is a type of ZIF connector.
Zero Insertion Force.
It is rectangular in shape, and is composed of two parts.
HOWEVER, it does NOT come completely apart.
The bottom piece is the larger of the two parts. It is the BODY.
The upper smaller rectangular piece is the Locking Bar.
The Locking Bar moves. The Body is stationary, and mounted to the motherboard.
The Locking Bar works on a wedge type of principle, and when it is in the locked position, it wedges the Keyboard Cable in the Body.
There are two types of Locking bar used at present, to my knowledge. I cannot discern in the Irisvista photos, as to which type is used.
1) Sliding Locking Bar;
A) Locked; or can be said as Closed,http://www.irisvista.com/tech/laptops/Toshiba-Satellite-C650-C655/body-big/disassemble-toshiba-c655-11.jpg
B) Unlocked; or can be said as Open,http://www.irisvista.com/tech/laptops/Toshiba-Satellite-C650-C655/body-big/disassemble-toshiba-c655-12.jpg
Here you can see the Body is White in color, and the Locking Bar is Brown.
You can also see that there are essentially two 'tabs', of the Locking bar showing; on either side of the Keyboard Cable.
One uses their thumbnails to Gently ease the Locking Bar forward; and towards the LCD screen.
The Locking Bar ONLY moves about 2mm. That is a little more than 1/16th of an Inch, or about the width of this capital O.
2) Flip Up Locking Bar;
IF, the Locking Bar is broken; and/or the hinge pins for the Locking Bar on the Body, are broken; you are looking at -
MOTHERBOARD REPLACEMENT, and why I am being so detailed.
I do not have access to my Toshiba laptop Service Manuals, anymore.
According to the Irisvista link there are NO screws, that come up from the bottom of the laptop; and screw into the bottom of the Keyboard.
However I wish you to look FIRST, before trying to remove the Keyboard.
If present these screw/s will be in an area under the laptop, that corresponds with the area of the Keyboard.
Generally are in the Battery Compartment, and can be seen when the Battery is removed.
May also be situated as stated, in the area of the Keyboard.
Usually they/it will have a K next to them/it, or Keyboard, or a Keyboard symbol.
For additional questions please post in a Comment.