• Hello MLAers! We've re-enabled auto-approval for accounts. If you are still waiting on account approval, please check this thread for more information.

22" ADC Cinema Display problem

I bought one of these today untested, but with a 7 day return period if it doesn't work. It looked immaculate and would, I thought, make a very nice companion for my G4 Cube.

It doesn't work.

Before I bring it back, does anyone know what the likely cause of the following fault might be: a flickering, pixellated 2" vertical band or stripe of noise at the extreme left of the screen, varying in colour depending on the background (e.g., sometimes cyan, sometimes magenta), and not constant but episodic. That is to say, it flickers in and out, and can stay on the screen anything from a millisecond to 10 or 15 minutes. The screen can also work just fine for 10 or 15 minutes, followed by a constant lightshow from this fault.

It can also be part of that 2" vertical stripe or all of it (e.g., just the middle 5" of the band screen, or several bits of the band at any given time). It is also semi-transparent, so that the desktop can be seen beneath, but the desktop is distorted by the pexellated overlay.

I'd prefer to fix than to return, as the price was right — but I also know that parts for these things are pricey and scarce, and that LCDs are not always easily fixed.

Any ideas?

 
Any sign of cable or pin damage? Is the cable pierced anywhere as if someone stuck a nail though it, or the cat bit it?

 
What video card do you have in the Cube? I bought a 20" ADC Studio Display when I got my Cube earlier this year and couldn't get it to work for anything. Finally realized the card wasn't sending it enough power, put in a GeForce2 I bought off ebay, and haven't had a problem since.

 
Tested on a high-end Radeon in a G5 as well as a Radeon 7500 in my Cube. It won't run from a stock Rage 128.

After fiddling with ribbon cables to no effect, I just decided to bring it back for a refund. Too much trouble, too little time.

 
It's possible the LCD itself was damaged. I have a bunch of 17" Core Duo imacs with the vertical lines. Requires a complete LCD replacement.

 
bad panel. Guaranteed.

As far as the core2 imacs go, the cheapest option is to replace it with a laptop screen and use an EDID/Pinout hack which someone actually made an adapter for now.

 
Yep. I'm ordering 5 kits for my school from Real Mac Mods. Comes with a new inverter board and an LCD for $150. Funny thing is that the new LCD is 1920x1200, so quite the upgrade for the little 17" iMac.

 
Back
Top