Good idea beaker6971. I suggest you open it up, and take a look at the cooling fan,
(Fan/Heatsink Assembly), also.
Besides you can Thoroughly clean the inside of the laptop out while you're at it, anyway.
1) Remove ALL power to the laptop. Remove the AC adapter (Charger) and Battery.
2) Buy, and wear an ESD wrist strap. (Electro Static Discharge)
Connect the alligator clip to a good ground source.
I connect to the metal frame of an empty desktop computer case. Perhaps you have a similar device.
(I don't connect to an ESD Anti-Static Mat. It isn't needed, and I don't want my wrist connected to the utility line's ground source. KInda' funny about that. Haven't static shocked any computers in over 20 years at my shop, guess I'm doing alright)
Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.
The ESD wrist strap will relieve your body of Static.
Average cost is $3 to $6 for an economical one.
3) Use a multi-compartment container for the various screws you will remove.
Mark each compartment for the area the screws come out of.
There may be as many as 60 screws, and 12 different types.
Do Not mix them up!
You can use a clean egg carton in a pinch. Mark each egg holder.
(After I took my 20th laptop apart, and had three apart at the same time, I decided to just use egg cartons. How many laptops now? Dunno, there have been too many)
4) I advise on your first time that you make a record of your disassembly procedure. A Service Manual can only take you so far. It's also good to have a record to refer back to in case you get interrupted. (You'll find shortcuts, and techniques of your own that will not be listed in a Service Manual, also)
Make notes, drawings, use a camera, or video camera if available.
(Make sure your notes are legible so you can read them later. Use good lighting for a camera)
Now enough of my prattle, let's get you the information you seek;
You can click on each photo to enlarge.
You are on Page 1.
Page 2, 3, and 4 links are on the bottom.
[ Page 1::Page 2::Page 3::Page 4::Find another model)
B) This is a link to a free Service Manual,http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-toshiba
Go to the 11th line down.
The one that starts with > Satellite A10.
Go down to the last line in these file listings, and go across to > U200
Left-click on U200.
This is a PDF file. After you click on the link it may take as much as 30 seconds, before you see the first page.
It may also take additional time to fully download.
Suggest you let the file download all the way before looking through it.
There is a way to save a copy to your computer. If you are not aware of how to do this, post in a Comment.
(This way you can burn a copy off to CD disk for safekeeping, and have it anytime you wish.
You won't have to download again.
You can also delete the file from your computer to save harddrive space)
You will be removing the Fan/Heatsink Assembly in order to gain access to the cooling fan.
You MUST thoroughly clean the top of the Processor, and the Cooling Tube's metal plate that sits on top of the Processor.
You MUST also apply fresh, new Thermal Paste.
I use a plastic old credit card to scrape the Thermal Paste off.
If there is a Thermal Pad, this should be removed, and flung out of the back door.
They Are Junk!
Use fresh, new Thermal Paste.
After scraping the old Thermal Paste, use Q-tips dipped in Isopropyl Alcohol.
91 percent is best, 70 percent will due in a pinch.
Advise against 50 percent. (50 percent Isopropyl Alcohol, 50 percent Water)
It may be a gooey mess, and take quite a few Q-tips dipped in alcohol.
Isopropyl Alcohol is EXTREMELY FLAMMABLE!
Use in a Well ventilated area with NO sparks or flames present.
The average price of decent thermal paste is about $8.
Apply one large pea sized drop to the top of the Processor.
Then set the Fan/Heatsink Assembly on top, and CRISS-CROSS the screws as you tighten them.
Do NOT overtighten.
Need some guidance post in a Comment.