68kMLA Classic Interface

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Restoring an Apple 30" Cinema Display
Posted by: smrieck511 on 2025-02-23 09:27:22
Mine works but is kind of dim (brightness buttons are unresponsive) and there's also an occasional vertical line.

I see a few videos on YouTube about replacing motherboards but I don't see the point of replacing old failing components with other old potentially failing components.

I'm pretty confident re-capping though...has anyone had any experience re-capping or replacing other components on any of the three internal boards?
Posted by: mitchW on 2025-03-02 11:00:17
Vertical line is caused by failing LCD panel, so nothing will fix it, except replacing it with a different panel.
Posted by: gsteemso on 2026-08-30 12:49:31
I have recently acquired one of these beautiful behemoths that, and I wish I was making this up, appears to have had its all-in-one cable _chewed off_ at the base!

Alas, replacement cables appear to come up only rarely on ePay, and the one I did find (advertised as fitting models A1081, A1082, and A1083 – that last is the number on this 30" model) turned out to have about 40% the wrong internal connectors (and the anchoring screws surrounding the case passthrough were not quite at the correct angular locations). I have no reason to believe the seller was lying, but I’ve read that the 30" display (which was apparently sold from 2004 through 2010) was quietly upgraded to have a better LCD panel in late 2005… maybe the two revisions had different wiring to go with the different display panels?

If anyone actually _knows_ anything about this, I would very much like to hear about it.
Posted by: joevt on 2026-08-30 23:14:02
Older models did not have HDCP support. They have different EDID data and model ID. I don't know about hardware differences.
Posted by: gsteemso on 2026-08-31 05:38:13
Older models did not have HDCP support. They have different EDID data and model ID. I don't know about hardware differences.
Interesting! When you say “different model ID”, what exactly do you mean? What do I look at to distinguish them, and is there any way to do so when there is no way even to power on the monitor, much less to connect it to a host computer?
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