The Shaman's Acer 5720G with Busted LCD

The shaman's gear, ACER 5720G has a busted LCD (no display) but the system overall is still good, has display using external monitor. I tried installing several Linux distro, but seems to have a garbled display. I have a doubt that the Nvidia 8400M GS might be busted or something.

White screen of death

Been experiencing "white screen of death" on my Acer. I have tested external display, its working and system is intact. I found that this is common among Acer laptops, due to defective connectors or defective LCD inverters. I did check on the back plate, re-installed the video card, memory and all. But to no avail, still just the blank white screen on the LCD.