Display won't turn on
2014 mb pro 15" retina, Yosemite. Screen went black in the middle of use. There is a "schtick" sound (and a possible burning smell if real close) from the upper corner of the keyboard when you open the lid or press the power button. A long press on the power button will cause the startup chime and the keyboard to light up, but nothing else. Have already tried resetting the NVRAM and the SMC. Seems to be charging okay.
MacBook Pro with Retina display, OS X Yosemite (10.10.1)