Apple Cinema Display 20" Inverter Problems
Hello All --
I hope everyone is enjoying their holidays, and won't mind offering a little advice for me.
I've just purchased a Mac Mini to which I've connected an older (circa 2003) 20" cinema display through a DVI to ADC adapter. Upon getting everything up and running, I noticed that the top of the screen was dim and that the power light on the display was sending out a backlight error message (two short flashes followed by a long one).
After doing some research and troubleshooting, I think the problem is the inverter board in the display. The reason why I think it is the board and not the backlights, is that when the computer has been on for a while, it is possible to bring the display back to full brightness (and cancel the error message) by unplugging and re-plugging the display cable. This is a trick that I found by searching for backlight problems associated with this display. The problem is, of course, that this trick is temporary, and the dimness and error message always return. Yet, because of this, I sincerely doubt a backlight is burned out. After all, I can sometimes get the screen back to full brightness, and I don't know of too many burned out bulbs that miraculously come back to life...
I've found a few places in the States to purchase replacement inverter boards (none in Canada yet), and plan on ordering one. But, I've also noticed that these places also sell inverter cables.
Does my diagnosis sound correct? Will I need an inverter cable as well as the board? Any insight would be appreciated.
Last edited by dflack; Dec 26th, 2008 at 04:06 PM.