PowerBook G4 motherboard question
Attempting to resurrect dead 1 GHz DVI PowerBook motherboard.
What are the minimum components required to be connected for the motherboard to show signs of life? I currently have these connected: - power-in connector & pcb - power button - 3.6v backup battery pcb - headphones (to hear the boot gong or error beeps) What else: - keyboard? - hard disk? All I'm looking for is a boot gong or error beep code. Also looking for group, mail list, or other forum that has the greatest wealth of PowerBook hardware repair discussion. Suggestions welcome. Thanks, -- DaveC This is an invalid return address Please reply in the news group |
PowerBook G4 motherboard question
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DaveC wrote: Attempting to resurrect dead 1 GHz DVI PowerBook motherboard. What are the minimum components required to be connected for the motherboard to show signs of life? I currently have these connected: - power-in connector & pcb - power button - 3.6v backup battery pcb - headphones (to hear the boot gong or error beeps) What else: - keyboard? - hard disk? All I'm looking for is a boot gong or error beep code. Also looking for group, mail list, or other forum that has the greatest wealth of PowerBook hardware repair discussion. Suggestions welcome. Thanks, I don't know the exact answer but suspect most things have to be present except for the HD ( at least older Macs would happily gong & then show a disk with a ? in it if no system was found). Get the manual through Gamba's site, http://home.earthlink.net/~gamba2/index.html. You're in ds-country it looks like, dead mobos are not easily diagnosed without specialised equipment. Maybe you can establish voltages on the various rails (+/- 5V, +/- 12 V, whatever the Mac uses on the board). I assume you verified the power adapter works..?? You don't need a battery with the adapter. Good luck, Mac Dude |
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