Acer aspire e1- 571 not starting..

I was working with laptop when I got other work , so I push my laptop in sleep mode and forgot. After a week when I try to switch it on again...

1) it shows in power led on.

2) if charger plugin then shows charging led on.

Problem is it shows only these two led ON and nothing else happens

-no Acer logo on screen

- no processor led is on means I guess hard disk didn't start

I tried to methods suggested in other similar questions asked like remove charger and battery, but didn't work.. Plz help...