Battery already Replace, but still can not power on.

Hi,

I have Ipad2, and already dead for 1 year. i thought it was problem with the battery. so yesterday i try to replace the battery, when i opening the ipad, i broke Wifi antena and touchscreen flexible. now i ordered the sparepart.

then i continue to replace the battery, after finish replacement, i try to turn on without wifi antena and touchscreen. but the ipad still cannot turn on, then i try to plug the charger it also not charging.

my question is, is it possible to test power on with this condition?

any component that i have to check and how to check it.

Thanks

indra