PowerBook G4 Titanium Mercury PMU Replacement
Inleiding
Ga naar stap 1The Power Management Unit, hidden beneath the DVD drive.
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Remove the battery.
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Turn the keyboard locking screw so that it is parallel to the space bar.
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Pull the keyboard release tabs toward you and lift up on the keyboard until it pops free.
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Release the tabs on each side of the RAM chip at the same time. These tabs lock the chip in place and releasing them will cause the chip to "pop" up.
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Pull the RAM chip out.
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Repeat this process if a second RAM chip is installed.
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Disconnect the hard drive ribbon from the logic board using a spudger or the tip of your finger.
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Before continuing, place a soft cloth on your work surface to rest the computer on. Turn the G4 over, making sure the DVD drive doesn't fall out.
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Carefully peel the adhesive strip away from the DVD drive. The plastic dust shield covering the DVD drive is easily damaged. Try to start at the four corners and work toward the center.
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Turn the G4 over.
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Peel the orange tape away from the three connectors on the PMU board. Leave this tape in place so you can reuse it when reassembling the G4.
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Disconnect the two orange cables and one multicolored cable from the PMU.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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