LCD brightness flickers when moving the monitor - How 2 fix?

When I open the monitor, it feels like there is a "short" in the power supply to the LCD... as I move the monitor, the brightness flickers dark / light until I stop moving it. I have to wiggle the monitor to get it to display bright or move it into a different position. The hinge also feels very loose inside. I want to know...is there a ribbon cable in there that may be damaged / pinching? Can I buy from you and replace it myself and tighten the hinge as well?