Apple PowerBook G4 15-inch Spezifikationen PDF herunterladen (Seite 139)

PowerBook G4 (15-inch FW800) Troubleshooting - 21

Hardware Symptom Charts

6. Turn off the computer. Perform the keyboard PMU reset procedure described in the

Hardware Troubleshooting Tools and Tips section. Wait ﬁve seconds before

continuing. Press the power button to start the computer.

Warning: Resetting the power manager will permanently remove a RAM disk, if

present, and all of its contents. You will also need to reset the date and time

(using the Date & Time system preference pane).

7. Make sure the Sound/DC-in cable is ﬁrmly connected. Look for damaged insulation or

wires.

8. Replace Sound/DC-in power cable.

9. Replace Sound/DC-in board.

10. Replace logic board.

Bluetooth

Bluetooth system preferences does not show up under Hardware system

preferences

1. Check the wire connectors to Sound/DC-in board and the Bluetooth card. Make sure

the cable is not damaged and fully inserted.

2. Replace Bluetooth card.

3. Replace the logic board.

Bluetooth Card not recognized by other devices

1. Open Bluetooth in system preferences and make sure under the Settings tab that

Discoverable is checked.

2. Check the Bluetooth antenna is connected to Bluetooth card.

3. Replace with known-good Bluetooth card.

4. Replace display panel assembly.

5. Replace logic board.

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Apple PowerBook G4 15-inch Spezifikationen Seite 139