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I have an Acer 24" LCD (model "AL2423WDR") that's about 3 years old. It worked perfectly for most of its lifetime so far.

Recently it started giving problems. When I turn it on, it either says "no signal" on the display, or the power light goes yellow (as if in power-saving mode). This happens with both DVI and VGA (both of which worked fine before), and stranger still, the 4 buttons on the front, for accessing the on-screen menus, don't do anything. I've also tried different computer hardware and software (PC/Mac, Linux/MacOS), but nothing has worked.

I've tried power-cycling it (with both the power button and the power switch), and also unplugging it entirely.

The nonworking buttons suggest to me an issue with the firmware. I found a place on Acer's website that says I can send it in to have it fixed, at my expense, but I'll avoid that if I can. Is there a way to fully reset it manually? Or is there something else I can try?

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That actually sounds like a hardware issue to me.

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Thanks for your diagnosis, Einstein. – Jun 6 '10 at 7:47
@taspeotis - Well.. actually he is right so yeah, thank you. Clear answer, nice answer. :) (Got my +1) – Shiki Jun 6 '10 at 10:32
My point was really - send it to be fixed - not much you can do regarding firmware etc... – Ofir Jun 6 '10 at 13:29

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