G4 Digital Audio has no sound, screen, or chime on start-up!

It was working just fine then out of the blue it smelled hot and shut down completely in a fraction of a second. I rebooted it and it started up normally until the blue loading line was about 1/2 inch and then it just shut down completely again. So I have tried all of the following. I cannot get anything on the screen, or any other indicators. I looked in the discussions list and it lead me to a couple of things but nothing has helped so far. I am reaching out to you all as you have been a great help in the past several years.
I had installed a OWC Mercuy Extreme 1.2 Ghz processor about 9 months ago and it has worked greatly. But, just in case, I dug out the original processor and reinstalled it, resetting all cable connections inside the unit as well as resetting all the RAM. I went to Radio shack and replaced the battery that was in it. Don't know how long it had been in there, maybe since the revolutionary war as it was made by the French. Held down the (external in this model) PMU button for over 10 seconds. Then tried to reboot, nada, zip. Well, except for the fan is running and the white light is on in my 23 inch HD Cinema Monitor. During all the reconectiong and other stuff I would reboot every so often to check to see if it was okay. Once I did it with the cover open just a crack (battery installation) and the red light was open and glowing steadily.
H E L P !!!!!!!!!!!!!!!!!
1) G4 M.T. 533 mghz/ugraded to 1.2 ghz 2) Pismo G3PowerBook, 500 Mghz Mac OS X (10.4.4)

It's no longer a problem.

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Quote from: Me27 on 16-November-06, 17:43:28
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Hi
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Attachments:
EncoreDolby.zip ‏310 KB
ToshibaDolby.zip ‏1310 KB

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Message Edited by RasterBlaster on 03-11-2009 03:25 PM
... an HP employee expressing his own opinion.
Please post rather than send me a Message. It's good for the community and I might not be able to get back quickly. - Thank you.

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I feel like I am so close and it's something so simple....
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Now I am really confused.

G4 Digital Audio has no sound, screen, or chime on start-up!

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