Solved My Cinema Hd Display Won T Turn On Mac

Chosen Solution

My display won’t turn on at all. There is no sign of the display receiving power and there is no blicking light at the power button. I have a working power adapter brick tested by Apple. Is this a power transformer or monitor inverter problem?

Before you do anything else hook up an external monitor. If the video there is good your power supply and logic board are ok. If that’s the case your problem is likely the cable to the LCD, the inverter or the LCD itself. If you have no video on an external monitor I would suspect the logic board. Ralph

Is this 23" Cinema hd aluminum case? If it is, more likely to be bad VR3 3.3V REGULATOR IC putting out about 4vdc instead of 3.3v. See my pictures here: http://s807.photobucket.com/albums/yy352…

this is so sad no one can fix that

Very sad. But not as sad as the untimely death of Warren Zevon.