Satellite L745-S4310 won't boot up - black screen

We have had this L745-S4310 laptop for only 3 months or so and suddenly it won't boot up.  The screen is black and I can hear the fan running, but it won't boot up   Have tried removing battery to reset, but to no avail.  Any ideas?

You could try the other steps outlined in this article.
Computer will not turn on
If nothing works, and your unit is still on warranty call Customer Support and get a warranty authorization. In this case, if I was you, I would take it to a local Toshiba ASP, and try to NOT send it in for depot service.
Customer Support in the United States
Computers: (800) 457-7777 (toll-free) or (949) 859-4273
Locate a Service Center
Good luck.
Mike

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