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Model M5884 / 400 or 500 MHz G4 processor

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No power

Dear all,

my beloved PowerBook Titanium does not want to power up. Battery is ok as well as power supply. Any idea?

Diese Frage beantworten Ich habe das gleiche Problem

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Have the same problem. Tried resetting and still nothing.

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Try looking here: http://support.apple.com/kb/HT1431#faq8

Resetting the PMU might do the trick. I know the ol' Titanium is sweet, but it also might be time to look at a newer model.

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It could be your DC-in board. The best way to test it would be to slide in another battery that has a charge to it... if the computer turns on, it is most likely your DC-in board. You can purchase one here if you are interested:

[verknüpftes Produkt fehlt oder ist deaktiviert: IF133-010-1]

And you can look at the repair guide here:

PowerBook G4 Titanium DVI DC-In Board Replacement

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Beware Tyler's solution does not apply to the Mercury Model. The Mercury doesn't have a separate DC-in board.

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Try taking out your PRAM battery, shown in the remove PMU guide (it's the big thing marked 616-0114-A)

Disconnect the tri color lead from that to the PMU, start up the PowerBook (it should now work), then reconnect that cable and hopefully you should be left with a functioning PowerBook !

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So, disassemble to step 16, disconnect the tri color lead, reassemble, turn on computer. Disassemble to step 16, reconnect tricolor lead, then reassemble? Is that correct? Why would this work?

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Emerenziano wird auf ewig dankbar sein.
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