Sansung np148 power

Hello,





my samsung notebook np148 has suddenly stopped working.
when i pug in for charging the charging led glows..and apart from that nothing happens..
when i power on ..nothing happens..neither the led glows nor i get the runing noise of fanfan etc..

what could be the possible issues,,please help out..

i tried by removing and re inserting RAm but that didnt work..

need help urgently..