Dell 7577 turns off when screen hinge moves

I bought a dell inspiron 7577 week a go. Laptop started turning off when lcd hinge moved at an angle less than 90 degrees. Moreover, at the same angle the laptop do not turn on when i pressed the power button. Kindly guide what can be the issue. I have examined the laptop hinge from the outside. I can see lcd vga cable on the right side which appears to be worning out. Its a brand new laptop and its facing this issue..