Apple ibook g4 12 inch late 2004 User Manual

 
iBook G4 (12-inch Late 2004) Additional Procedures
 Checking the Optical Drive Cable 
Procedure
 
1. Check the cable for the supplier designation.
2. If the flex cable has a TennRich designation, 
• Check for a black dot near the cable end that connects to the optical drive. If there 
is no black dot, replace the optical drive cable. 
• If there is a black dot on the TennRich cable, the cable is good, and no further 
steps are needed.
3. If the cable has another suppliers designation, disconnect the...

 
© 2004 Apple Computer, Inc. All rights reserved.
 
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Service Source
Troubleshooting
 
iBook G4 (12-inch Late 2004) 

 
iBook G4 (12-inch Late 2004) Troubleshooting - 
 
1
 
 Symptom Charts
 
Symptom Charts
 
How to Use the Symptom Charts
 
The Symptom Charts included in this chapter will help you diagnose specific symptoms 
related to the product. Because cures are listed on the charts in the order of most likely 
solution, try the cures in the order presented. Verify whether or not the product continues 
to exhibit the symptom. If the symptom persists, try the next cure. 
 
Note:
 
  If you have replaced a module,...

 
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iBook G4 (12-inch Late 2004) Troubleshooting
 Symptom Charts
 
Poor AirPort  reception
 
1. Refer to Knowledge Base article 88258: PowerBook G4: How to Optimize AirPort 
reception.
2. Reseat AirPort antenna and cable.
3. Check AirPort antenna cable for damage.
4. Replace with known-good AirPort Extreme Card.
5. Replace AirPort antenna board and cable.
 
Battery
 
The battery wont charge
 
1. Remove any connected peripherals.
2. Try known-good power outlet.
3. Try known-good power adapter and...

 
iBook G4 (12-inch Late 2004) Troubleshooting - 
 
3
 
 Symptom Charts
 
Computer beeps once at startup
 
1. One beep means that no RAM is detected.
2. If a RAM card is installed in the expansion slot, remove it and put in known-good and 
compatible RAM and restart. 
• If symptom does NOT repeat, replace RAM card. 
• If symptom repeats, replace logic board.
3. If no RAM card is installed, replace logic board.
 
Computer beeps twice at startup
 
1. Two beeps means that EDO memory is installed in the...

 
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iBook G4 (12-inch Late 2004) Troubleshooting
 Symptom Charts
 
Hard Drive
 
Hard drive will not initialize
 
1. Boot from iBook Software Install CD and see if the hard drive mounts on the desktop.
2. Boot from the Mac OS X software install CD. Under the File menu, select Disk Utilities 
and initialize the disk or run Disk First Aid.
3. If no hard drive is found in Drive Setup, verify the hard drive cable connections.
4. Replace hard drive cable.
5. Replace hard drive.
 
Important:
 
 If the...

 
iBook G4 (12-inch Late 2004) Troubleshooting - 
 
5
 
 Symptom Charts4. Replace keyboard.
5. Replace logic board.
 
The keyboard lock is damaged or wont lock
 
1. Verify that keyboard is installed properly so the lock lines up with the notch in the top 
case.
2. Replace keyboard.
 
Keycap pops off
 
1. If the keycap is not broken, it can probably be reinstalled. To replace the keycap, refer 
to Knowledge Base article 88106: PowerBook G4: Keycap Replacement.
2. Replace keyboard.
 
Modem
 
No modem dial...

 
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iBook G4 (12-inch Late 2004) Troubleshooting
 Symptom Charts
 
Cannot receive fax
 
Check that Receive faxes on this computer is selected in the Print & Fax area of System 
Preferences.
Related articles:
25731: Mac OS X 10.3: Receiving faxes and connecting to the Internet
25596: Mac OS X 10.3: About Receiving Faxes.
 
Modem drops connection
 
1. Try known-good phone line.
2. Refer to Knowledge Base article 106748: Mac OS X: Troubleshooting a dial-up/PPP 
Internet connection.
 
Optical Drive...

 
iBook G4 (12-inch Late 2004) Troubleshooting - 
 
7
 
 Symptom Charts5. Refer to Take Apart to remove the stuck disc and replace the optical drive.
Related article:
106752: Macintosh: How to Eject a Disc When Other Options Do Not Work
 
The combo drive does not write at maximum speed
 
Refer to Knowledge Base article 86186: PowerBook G4, iBook: Combo Drive Does Not 
Write CD-R Media at Maximum Speed.
 
Ports
 
The FireWire or USB port is not recognizing devices
 
1. Completely shut down, then press the...

 
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iBook G4 (12-inch Late 2004) Troubleshooting
 Symptom Charts 8. Eliminate chain by plugging in only one peripheral.
9. Replace logic board.
 
Sound
 
Distorted sound from speakers
 
1. Verify sound is correct with external speakers/headphones. If sound is correct, replace 
top case.
2. Verify speaker cables are inserted correctly, and check cables for damage.
3. Check balance in System Preferences: Sound: Output.
4. Compare same sound with two different units to make sure that sound is actually...