Apple M9628LL Service Guide - Page 150

Keyboard, Modem, The internal hard drive does not spin, No response from any key on keyboard

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The internal hard drive does not spin 1. Disconnect any connected peripherals. 2. Try known-good power outlet. 3. Try known-good power adapter and power cord. 4. Boot from a Mac OS system CD. 5. Verify Drive Setup does not recognize the hard drive. 6. Verify cable connections. 7. Replace hard drive cable. 8. Replace hard drive. Keyboard No response from any key on keyboard 1. Remove any connected peripherals. 2. Boot from a Mac OS system CD to verify that it is not a software problem. 3. Turn off the computer. Disconnect the keyboard connector and inspect connectors. 4. Replace keyboard. 5. Replace logic board. The keyboard lock is damaged or won't lock 1. Verify that keyboard is installed properly so the lock lines up with the notch in the top case. 2. Replace keyboard. Modem No modem dial tone 1. Check that the correct modem is selected. In Mac OS X, check Network Setup. 2. Verify known-good analog (not digital) telephone line. 3. Verify known-good RJ11 telephone cable. 4. Verify RJ11 cable is not plugged into Ethernet port. 5. Inspect RJ11 connector and modem port for pin damage. 6. Verify RJ11 telephone cable is firmly installed in the modem port. 7. If using Apple Remote Access, select Ignore Dial Tone in the Modem control panel. If 4 - iBook G4 (14.1 LCD) Troubleshooting Symptom Charts

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4 -
iBook G4 (14.1 LCD) Troubleshooting
Symptom Charts
The internal hard drive does not spin
1.
Disconnect any connected peripherals.
2.
Try known-good power outlet.
3.
Try known-good power adapter and power cord.
4.
Boot from a Mac OS system CD.
5.
Verify Drive Setup does not recognize the hard drive.
6.
Verify cable connections.
7.
Replace hard drive cable.
8.
Replace hard drive.
Keyboard
No response from any key on keyboard
1.
Remove any connected peripherals.
2.
Boot from a Mac OS system CD to verify that it is not a software problem.
3.
Turn off the computer. Disconnect the keyboard connector and inspect connectors.
4.
Replace keyboard.
5.
Replace logic board.
The keyboard lock is damaged or won't lock
1.
Verify that keyboard is installed properly so the lock lines up with the notch in the top
case.
2.
Replace keyboard.
Modem
No modem dial tone
1.
Check that the correct modem is selected. In Mac OS X, check Network Setup.
2.
Verify known-good analog (not digital) telephone line.
3.
Verify known-good RJ11 telephone cable.
4.
Verify RJ11 cable is not plugged into Ethernet port.
5.
Inspect RJ11 connector and modem port for pin damage.
6.
Verify RJ11 telephone cable is firmly installed in the modem port.
7.
If using Apple Remote Access, select Ignore Dial Tone in the Modem control panel. If