Compaq presario cq62 wont turn on

Registration date
Wednesday July 31, 2013
Last seen
July 31, 2013
so my compaq presario cq62 wont turn on
i have tried doing the take charger and battery out hold power for 30 seconds to 2 minutes idea and it has not worked for me
when i plug in the charger and the charging light does not come on
nothing at all happens when i press the power button
i have checked and the charger and battery both seem to be working
please help as that was my main pc and i am not enjoying using a tablet as replacement