Black screen but still have life

Help, I have black screen but get chimes when plugged into laptop and charging port? I was replacing my iPad mini screen when doing this the tape that holds the lcd screen in at the bottom striped a part of lcd bare and the lcd accidentally touched the bottom speaker on that bare part of the screen, there was a small bit of smoke that followed. After putting everything back together with my new screen the iPad would not switch on again but it does chime and itunes also sees the iPad would I just need a new lcd? Any help would be great..