If you have an external monitor you might try hooking it up to see if you get an external display. Also you said nothing so I wonder if you get any BIOS screens or anything at all at at startup.

At startup I don't get any bios screens or anything either. I have tried to hook up a crt monitor and I get nothing. Running out of ideas ... lol. Thank you for your reply!

i have same problem (A105-s2719) , i tried to change lcd panel but nothing wrong with lcd panel . the problem was mainboard hmmm maybe lcd controler ...to be continued...

OK, at this point we can probably rule out the LCD as the primary cause of failure and the Inverter - the device that powers the high voltage lamp. The problem for both of you though is that the graphics card is integrated onto the motherboard in each of these models so you are essentially looking at a motherboard replacement.

Before assuming that try to remove all other components HD, Memory, Wireless Card, CD drive. All of these can be accessed from the bottom panel by undoing screws and pulling panels to get at then or just removing the retaining screw for the optical drive and pulling it out.

thanks for your quote ,actually the inverter is on but i cant see nothing (image) at all, im wondering with this case so i got another lcd on my toshiba M35 n i tried with this one... wow
the image appeared but the position was wrong
then i tried to put a105 lcd on my M35 and the image appeared !