Cinema Display blinking Lights???
Bruce in alaska
Light, in a 2 short Dot and one long Dash, sequence and being Off the
rest of the time. Does anyone know, or remember, just what this
signifies? I don't use the Power Button, and have it DeActivated in the
Monitor Preferences.
System is OSX 10.4.11, running on a MDD (Wind Tunnel) Dual 1.25Ghz G4
with 2 Gb of Ram.
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Bruce in alaska
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Jolly Roger
Bruce in alaska <fa...@btpost.net> wrote:
> I have a 20" Cinema Display that has started Blinking the Power Button
> Light, in a 2 short Dot and one long Dash, sequence and being Off the
> rest of the time. Does anyone know, or remember, just what this
> signifies? I don't use the Power Button, and have it DeActivated in the
> Monitor Preferences.
<http://docs.info.apple.com/article.html?artnum=88366>
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bi...@mix.com
> I have a 20" Cinema Display that has started Blinking the Power Button
> Light, in a 2 short Dot and one long Dash, sequence and being Off the
> rest of the time. Does anyone know, or remember, just what this
> signifies?
When the power button on the display is flashing, two short flashes then
a long flash, in a delayed repeating pattern, this indicates trouble with
either the inverter board, LCD panel, or related cables or connectors.
Since you didn't mention the display being dimmed, it's hard to know
exactly what the problem is. On the other hand, about the only thing
you can try on your own is to reseat the cables on the inverter, which
is a small circuit board inside the display. This supplies high voltage
power to the backlights. The voltage is high enough to be dangerous,
so do not try what follows without first shutting down the computer
and then disconnecting the display from it.
This display can not be disconnected from the computer while powered on,
so if you want to try this, first shut down the computer. Then, disconnect
the display, open it up, and inverter is a small rectangular circuit
board mounted pretty much in the center. If any part of it, or the
connectors/cables going to it look burnt (the usual problem, except the
display is usually dimmed from this, too) you'll have to get it repaired.
I have scraped away the burnt parts and soldered wires directly to the
board - on displays where the only other option was tossing them. But,
this requires some tools and electronics background... If nothing looks
burnt, you can try reseating the connectors on the inverter board - this
means unplugging them and then plugging them back in, which burnishes
(cleans) their contacts.
If that doesn't fix it, you'll have to have Apple repair it. You could
just keep using it, but if nothing is burnt yet, fixing it now will be a
lot less expensive than after something does get fried, and the flashing
power LED is an indication that is likely to happen.
> System is OSX 10.4.11, running on a MDD (Wind Tunnel) Dual 1.25Ghz G4
> with 2 Gb of Ram.
This is strictly a display function, regardless of which operating system
and computer it's being used with.
Billy Y..