Toshiba Satellite L300D Blank Screen !

[Colerainescotty]

Hi folks,

I closed the lid of the laptop yesterday as usual as it is set to standby when I do this for convenience and It would not come back on. Here is what's happening:

Laptop fans spin when power button is pressed and cd drive makes the usual noise as if it is going to start up but there is no screen.

I did the following:

Took out RAM and cleaned and reseated. Tested new RAM, took out all USB drives, HDD and RAM and tried again but still no screen. So then I immediately tried an external monitor and again nothing. There was no HDD light also so I then thought it must be a corrupt BIOS etc as in a previous Acer that I had.

So...

I found this: http://www.theeldergeek.com/forum/index.php?showtopic=39364&st=0&p=310099&#entry310099

And followed the steps and still nothing. I wasn't able to format the USB pen after formatting it with gParted as described in the post from brick alive. Under windows 7 it says "unable to format USB" so I then just formatted another USB under windows 7 only to FAT 16 bypassing Gparted completely. I then put the BISO.fd file onto the pen and booted up the laptop while holding the F key and the lights on the USB began to blink and the laptop restarted after 30 seconds but again nothing

I would really appreciate it if anyone has faced this and how I can fix it?

I have lots of work I should be getting on with so I am eager to get it done.

Thanks in advance, if you need any further details please let me know,

Thanks

 

[NYJimbo]

Did you try all the usual "pull the cmos battery, press the stupid button for 30 seconds, etc.." stuff ?

I just hope the bios write you tried didnt add to the problem.

 

[Mr.Mike]

Any Updates? Tried NYJimbo's suggestion?

 

[AtYourService]

had a toshiba that had same kind of issue the other day, try holding down f2 then powering up, see if that works.

 

[Peaceful]

I have an HP and a Compaq desktop on the bench right now with similar issues. No visible cap problems, and they seem to boot ok just no video out. Neither onboard or with a add-on video card. Watching the hard drive activity light, they appear to boot to the "windows did not shut down properly" screen. I cursor down one step and get another flurry of HD activity but never any video.

 

[Colerainescotty]

Sorted!

Hi folks, thanks for the replies. Always appreciated. Sorry for the delay, I have been away for a day or two celebrating Her Majesty's Jubilee

Anyway... Believe it or not I pulled the motherboard and tested the CMOS battery with the voltmeter and it read 0.08V. So I replaced this (Had to solder one on) gutted it wasn't the plug and play job. Anyway it is now reading 3+V and the laptop now boots perfectly fine.

So I hope this is helpful to someone else as I was always under the impression that a computer would still boot fine even though the battery had failed.

All the best

Ryan

 

[atombytes]

If there is no screen but fan is moving, it could be dead graphic chip. Try using heat blower pencil (i dont know how they call it in US), and heat up chip to 200 degrees(C) for 2-3 min, if it dont work then again 2-3 min.

Black screen usually indicate problem with RAM, but if you are already tested it, it could be only graphic chip or graphic card in it.

Regards
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