iPad 2 not response when connecting to power source.

Hi all... I'm having problem with my ipad 2 which I've owned since 2011.

My ipad won't show any response when connecting to any power source using original adapter.

There is no indicator show at battery icon neither.

When I connect it thru my MacBook Air, iTunes can't detect it.

I've tried to reset it (sleep/wake + home button) so many times but no joy.

Anybody can assist & advise me in this?