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very upset
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
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hi
I recently acquired a few imac tray loaders
I plugged in an orange one - pressed the power button
it chimed began to start up and then just shut down
when I pressed the power button after this - nothing happens
anybody have any idea what could be failing/could cause this?
rich
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Mac Elite
Join Date: Mar 2000
Location: Allston, MA, USA
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With a subject line such as yours, not many people are even going to look in here.
I would guess either the PRAM is corrupted or the backup battery is dead. Have you tried unplugging it for a few minutes and then plugging it back in? If your iMac has a reset button, you might try getting out a paper clip and pushing that.
See the iMac user manual for the location of the reset button http://manuals.info.apple.com/en/iMa...UserManual.PDF
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-- Jason
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Clinically Insane
Join Date: Oct 2000
Location: Los Angeles
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Originally Posted by rich82fox
anybody have any idea what could be failing/could cause this?
Could be a bad power supply
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"The natural progress of things is for liberty to yield and government to gain ground." TJ
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Mac Elite
Join Date: Feb 2001
Location: Canaduh
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Possibly a dead flyback transformer. Common problem with old gumdrop iMacs.
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
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by backup battery I assume you mean the PRAM battery
I have heard people talk about the main battery - is there another battery aside from the PRAM?
rich
QUOTE=jasong]With a subject line such as yours, not many people are even going to look in here.
I would guess either the PRAM is corrupted or the backup battery is dead. Have you tried unplugging it for a few minutes and then plugging it back in? If your iMac has a reset button, you might try getting out a paper clip and pushing that.
See the iMac user manual for the location of the reset button http://manuals.info.apple.com/en/iMa...UserManual.PDF[/QUOTE]
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Addicted to MacNN
Join Date: Oct 2001
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Bad flyback. Do a search.
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I'm a bird. I am the 1% (of pets).
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Mac Enthusiast
Join Date: Dec 1999
Location: UK
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Originally Posted by Eriamjh
Bad flyback. Do a search.
I don't think that its the flyback - as the machine shuts down completely (then upon second attempt to power on , nothing at all happens
normally with a flyback problem the machine powers up - the button glows orange but nothing comes up on the screen
rich
(Last edited by rich82fox; Apr 19, 2006 at 11:45 AM.
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PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
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Mac Elite
Join Date: Mar 2000
Location: Allston, MA, USA
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Yeah, I meant the PRAM battery
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-- Jason
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Addicted to MacNN
Join Date: Oct 2001
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Originally Posted by rich82fox
I don't think that its the flyback - as the machine shuts down completely (then upon second attempt to power on , nothing at all happens
normally with a flyback problem the machine powers up - the button glows orange but nothing comes up on the screen
rich
I disagree. The startup then shut right down is indicative of a shorted flyback. The power supply is basically overloaded and shuts down. It may take a few seconds or minutes before you can attempt startup again. The second scenario you describe may be indicative of an open flyback or other failed monitor component.
Either way, the solution is too expensive to justify repairing. The best thing is to gut the mobo and try to stick it into a PC case to use it. Otherwise, gut it and make it a fish tank.
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I'm a bird. I am the 1% (of pets).
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