The panel you refer to is the Palm Rest Cover (Sony)
Covers the top of the body of the laptop, has the Touchpad in it, and the Keyboard is in the top/middle.
I would suggest going to Ebay, and looking at Laptops for Parts, or a laptop like yours that may have internal problems, or a bad LCD screen.
As for guidance in removal and replacement, I have no links to give you for this exact model.
I can however link you to guides that are similar, and should work;
The LED light/Power Button/Speaker Cover is different in shape.
(Strip of plastic below the LCD screen, and above the Keyboard.
There are different names for the various models)
In case you wish to replace the LCD screen, lol!
Used to compare against the VGN-FW series, and to let you know, I know the VGN-FW series is a little different.
However after you have disassembled many laptops, you see that there is a simple specific pattern, for all laptops.
A) Don your ESD wrist strap, and connect it to a good ground source.
(Electro Static Discharge)
Average cost is around $3 to $6.
(I connect it's alligator clip to an unpainted surface, of the metal frame of an open, empty desktop computer case)
B) Lay a towel on a table. Make SURE it is static free. (Unless you have a workbench like I do, and static cover)
C) Laptop off, closed, and upside down on the towel, remove ALL power to the laptop.
Remove the AC adapter (Charger) and Battery.
D) Look on the bottom to see if there are arrows pointing to screw holes. Remove the ones indicated to remove the Keyboard, strip of plastic above the Keyboard, (If there are any), and Palm Rest Cover.
[ Use a multi-compartment container for the various screws you will remove.
If no multi-compartment container is available, substitute with a clean egg carton.
Label each egg holder for the area the screw/s come out of.
SOME screws look VERY similar to other screws.
DO NOT mix them up.
Make a record as you disassemble. Make notes, drawings, and use a digital camera, if available, or a video camera. (Use good lighting)
It's nice to have a record to refer back to, in case you are interrupted ]
E) Turn the laptop over to it's normal position, open the LCD screen all the way back.
Pop the strip of plastic above the Keyboard loose, then remove it.
Use CARE as there may be speaker wires, and LED light wires going to this strip. If you use a tool, (plastic Spud Tool?), do NOT damage the wires. These will have to be disconnected.
F) Remove the Keyboard. There should be 2 or 3 screws at the top of the Keyboard, holding it in place, OR there were screws you removed from underneath. (Bottom of laptop)
The Keyboard tilts up at a 45 degree angle, (Lift the back, or LCD screen side), then slides forward a little. (Towards LCD screen)
The Keyboard Cable is still attached, so do not try to remove it all the way yet.
The Keyboard is Not brought up to a 90 degree angle, when removing.
There are plastic tabs formed at the front of the Keyboard, which slide into the Palm Rest Cover. These can be broken off.
The Keyboard Cable does Not remove from the Keyboard. It removes from the motherboard.
The Keyboard Cable is a FFC. Flat Flex Cable.
It does not have a connector on the end of it. It's just a few wires encased in plastic, in a ribbon shaped flat cable. The ends of the wires have a small metal contact strip.
The connector on the motherboard is a ZIF connector.
Zero Insertion Force.
It is a rectangular shaped piece of plastic, that is composed of Two parts.
A smaller part that resembles a thin rail, at the top, and a thick block at the bottom.
The thinner part slides UP, (Towards the LCD screen),
it flips up. There are two different styles.
For the style that the thinner part slides up, it DOES NOT slide out!
It only slides up just a little, to unlock the Keyboard Cable. (1/8th inch approximately)
Then the Keyboard Cable slides out.
(Be SURE to note which way the Keyboard Cable goes in! Even if it is twisted, it MUST go back in the same position)
If you slide the ZIF connector completely apart, you will have broken it, and the repair is to replace the entire motherboard.
[ Also note which way all cables are routed through the laptop. They MUST go back in the same route, or you will not get the laptop back together ]
G) You will have to disconnect the Video Cable on the motherboard side, and the Wireless Module cables on the Bottom side of the laptop.
The Wireless Module wires are then carefully fed through the Palm Rest Cover, and laid aside. (They go up into the Display Assembly)
H) Perform one last check for any cables, then pop the Palm Rest Cover loose. (It has tabs formed on the outside edges, inside the cover. These snap into matching tabs on the Bottom Cover )
For additional questions please post in a Comment.