Powerbook won't turn on

Hi,
I've just replaced the hard drive in my 12" G4 Powerbook (640mb RAM with SuperDrive) after a complete drive failure. It took some time to but the procedure I found was thorough and I took my time. Turned it on and got the Apple folder icon. Nice. Thought that it had gone back together AOK at this stage. Then I went to install leopard on the new drive. I powered it off and then on again and inserted the DVD expecting to be able to run through the installer. This is where I'm having problems.
I can hear it turn on BUT there is no "dong" sound at all that you should get with the first few seconds of it turning on normally. I've also tried reseting the power PMU as per Apple support article and still nothing. I know its working at some level as the ring on the power connector goes from green to amber upon plugging it in, so I know the battery is charging.
Now its stuck and I also can't eject my Leopard DVD.....
Any idea's on command sequences or other things to try to bring it back from the dead?
Thanks

Hello and Welcome to Apple Discussions ...
HI Don,
To eject a disc using firmware:
Restart the computer.
When you hear the startup sound, press and hold the Command-Option-O-F keys. (The Command key has an Apple on it.)
Release the keys when you see a white welcome screen.
At the prompt, type:
eject cd
Press Return, then wait a few seconds. The disc drive should eject the disc, and "ok" appears on the screen when the action is complete.
Type:
mac-boot
Press Return.
Your computer starts up normally and you see the familiar Mac OS X desktop.
If the above doesn't work to eject the disk, reboot while holding down the Trackpad.
As for installing Leopard. Make sure your PBookG4 meets the minimum requirements:
http://www.apple.com/macosx/techspecs/ Information on the left side of the page.
Also, Leopard requires 9GB of drive space. Make sure you have available space before installing Leopard.
Right or control click the MacintoshHD icon on your Desktop, then click: Get Info. In the Get Info window, click the discovery triangle so it's facing down. You will see; Capacity and Available Make sure you have 10% available disk space.
Starting up in “safe mode” may help you to diagnose problems you’re having with your computer.
To start up in safe mode:
Shut down your computer and wait 10 seconds.
Press the power button.
Immediately after you hear the startup tone, hold down the Shift key.
You should press the Shift key as soon as possible after your hear the startup tone, but not before.
Release the Shift key when you see the gray Apple logo and progress indicator (spinning gear).
To leave safe mode, restart the computer normally without holding down any keys during startup.
What is Safe Mode
Carolyn

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Sounds okay in theory, but wouldn't I need my computer to be ON for this to work?
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So I have a PowerBook G4 that hasn't started up in about a year. When I press the power button, nothing happens. With the power adaptor plugged in and the battery removed, the light is amber, not green. I've tried two different adaptors, both do the same thing.
I've recently tried to diagnose the problem and everything I have found online leads to two possible problems:
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Yikes, sorry about all the questions.

Is there a way to check the logic board and test if that is in good condition??
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Hi n,
You wrote,
I would just get it replaced. The PRAM battery is not that expensive and should resolve the problem you are having.
The only new PRAM batts for PowerBooks are for the 1.67ghz 17-inch models:
Newer Technology Replacement PRAM/clock battery for PowerBook G4 17" Aluminum 1.67GHz systems
The OP has a 1.33Ghz
In addition, the battery installation takes a fairly deep teardown that's beyond the typical user. A casual recommendation to replace the battery is not always appropriate unless you probe enough to determine the OP's comfort of opening up a notebook full of tightly-packed tiny parts.
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After power-on... Do you get a light when you press the caps lock?
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And make sure that the RAM is fully seated.
I doubt that ESD would cause the Mac to not boot, in this case as it sounds like you took all precautions. Everyone should practice good ESD safety as it is always a possibility. Now using a bristle brush with a vacuum, well that's a different story entirely and that can zap it in a heart beat.

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Hi,
Welcome to Apple Discussions
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I did check the AC issues listed in this Apple doc:
http://docs.info.apple.com/article.html?artnum=302461
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[warning: venting ahead]
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Message was edited by: MixtapeChick

MixtapeChick:
Welcome to Apple Discussions. Congratulations on your "new" PowerBook. I suggest that you begin with this combination procedure:
• Shut down the computer.
• Locate the following keys: Command, Option, P, and R. You will need to hold these keys down simultaneously later.
• Turn on the computer.
• Press and hold the Command + Option + P + R keys immediately after the startup chime.
• Hold keys down until you hear the startup chime for the third time.
• Release the keys and immediately hold down Shift key to start up in Safe Mode.
• Log in and empty Trash.
• Restart normally and log in.
Let us know how it goes.
cornelius

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Welcome to the Apple discussions.
Have you read this Apple note: http://docs.info.apple.com/article.html?artnum=300552

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Hi, Experts.
My G4 has problem. After I put it asleep, its power has gone and it won't turn on. When I press the power button, the light is on shortly and very short sound ( not chime but mechanical). I tried reset PMU already and thought the battery has problem, so I changed new battery. Actually, this happened the day before yesterday and yesterday suddenly it turned on for several hours and when I turned off, it won't turn on again. Any idea will be appreciated. Thanks in advance.

Is the startup problem you are having with the Powerbook G4 you list ion your profile, or with a G4 desktop?
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http://docs.info.apple.com/article.html?artnum=106214
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http://docs.info.apple.com/article.html?artnum=300552
 Cheers, Tom

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The small battery is a PRAM battery. It could be the cause of the non stsrt.
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http://support.apple.com/kb/TA25686?viewlocale=en_US
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/TS1367
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strange, strange, strange.
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Please make a Genius Appointment and take it in for service.

Power book G4 won't turn on

So last night I went to plug my charger in and it made a real weird noise then now it won't turn on. Iv had problems with the battery so I'm not sure how to tell if it's the battery that's died or my computer. When I press that button at the back of my computer one green light appears. Thanks

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http://support.apple.com/kb/TS1725
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