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Your hard drive may have gone south. Remove it and check with diagnostic software. Bad sectors in critical areas of operating system data will do this.
just keep looking at F1 to F12.there you will see a symbol like Sun .probably it will be Dark sun and brighten sun.while keep pressing Fn key press that Brighten Sun key.screen brightness will be increased .if it is already Full,Screen back light or Inverter circuit is defective
Well, it sounds like you have a hardware problem. Start by removing the Ram and hard Drive from the machine and insert a boot disk. If your not getting the Tecra Splash screen when you press the power button, the screen that appears before the windows boot screen, you may have a bad Monitor or Burned background lamp or faulty BIOS install or upgrade. Any of which will give you this problem.
You have a either a bad inverter (which lights the screen's tube) or a broken tube. that'd be my guess.
Try this: shine a bright light on the screen from the side - if the light is hot be sure not to be too close or the screen will melt - and see if there's any image on the screen. There should be...
If you have extra memory or removable Ram ( usually located on the bottom under a panel) Try removing it and starting it, with the ram removed. Then try putting it back in and starting it. If it works, it may be bad memory or it just needed to be reseated. Do this also with the cd drive and wireless card if it is removeable.
also try this with the battery, plug it in and remove the battery and see if it starts.
alot of laptops, like computers will not boot if there is a hardware issue.
The Beeping is a code. The number of beeps and how it beeps usually indicates an issue.
you could look the beep codes up on the toshiba website is the support center.
Thats a link to info about bios updates on the tosh website. If you're not getting to the toshiba screen then POST has not completed which means that either there's a hardware problem or the bios is corupt. If you're sure the RAM is ok try flashing the Bios.
Problem is though, to make the bios update disc, you need a working computer.
and, err, It'll probably have to be a toshiba! (sorry, not my fault!)
The power button is on the left side of the machine just behind the speaker - There is also a sliding flap that covers the power button you have to slide towards the rear of the machine to expose the power switch.
Get the tecra 8100 user's guide here. or hit http://pcsupport.toshiba.com.
BLANK SCREEN
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