Laptop question?

[deacsoft]

I have a Dell Inspiron E1705. It won't turn on. Every time I hit the power button 3 little icons next to the power button light up. They all look like little padlocks. The first one has the number 9 on it and stays lit. The next one has an "A" on it and blinks. The third had an arrow pointing down and blinks. I have no idea what these mean. I've never had a single problem with it before. Any help? Thanks.