Apple Powermac G4 12 Hard Drive
1. Disconnect the hard drive flex cable. 2. Remove two screws from the hard drive bracket. 2. Remove two screws from the hard drive bracket. 3. Use the flex cable to lift up the hard drive, bracket, and cable from the computer housing. 5. Peel up the flex cable from its double-sided tape. 6. Use a black stick to pry the flex cable connector up slightly on each side, and then pull it straight off the drive. Be careful not to bend any pins. 7. Remove the two screws and grommets from the opposite...
Battery wont charge
1. Make sure that power adapter connector is fully inserted. 2. Remove any connected peripherals. 3. Try known-good power outlet. Green or amber light should glow at power adapter connector. 4. Try known-good power adapter and power cord. Note Verify that power adapter connector glows amber or green. If the power adapter light is green, turn over the computer and press the battery button. One to five lights glow to show the battery's level of charge. One blinking light indicates that the...
Warning Resetting the power manager means you will also need to reset the date
8. Update to Mac OS 10.2.4 or later, or boot from external device with 10.2.4. Refer to Knowledge Base article 114154 SOP Battery Screening Process--Worldwide. Battery won't charge completely 1. If battery reaches 96 percent and doesn't charge further, this is normal operation. Refer to Knowledge Base article 88344 PowerBook G4, iBook Battery Does Not Show Full Charge in Mac OS X. 2. If battery charges to 95 percent or less and stops charging before reaching 100 percent, replace DC-to-DC board....
Procedure Ika
Note Reuse the tape you remove from the LCD panel. 1. Hold the backing for the LCD panel in place as you peel off the tape and disconnect the LCD cable. 2. Remove the two screws from each side of the LCD panel. 3. Raise up the LCD panel and disconnect the connector to the inverter board. 4. Install the replacement LCD panel, and reassemble and test the computer. Replacement Note When installing the replacement LCD panel in the display bezel assembly, make sure the cable is connected to the...
Procedure Jzk
1. Disconnect the sleep light cable and the hall effect sensor board cable from the DC-to-DC board. 2. Remove the screws from the DC-to-DC board. Note When removing the 4.5-mm long screw, the magnetic latch might draw the screw toward it. The 13.5-mm long screw has a hex head and requires a needlenose pliers or socket wrench to remove it. Replacement Note When replacing the DC-to-DC board, install the screws in the order shown. 3. Lift off the EMI strip from the battery connector. Be sure to...
Warning Resetting the power manager means you will also need to reset the date
4. Reset PRAM Press the power button, then hold down the Option-Command-P-R keys until you hear the startup chime at least one additional time after the initial startup chime . 5. Remove and reseat memory card. 6. Try unit on battery power. If problem goes away, replace power adapter. 7. Place a Mac OS system CD in the optical disc drive, press the start button and hold down the C key. Check the cursor movement, to see if the problem is software. 8. Check trackpad cable and connection to the...
The computer freezes during startup or a flashing question mark appears
1. If using Classic in Mac OS X, check for incompatible extensions Turn off system extensions in Classic by opening System Preferences, clicking Classic, clicking the Advanced tab, and choosing Turn Off Extensions. Click Restart Classic. If turning off extensions appears to solve the problem, identify and eliminate or reinstall the extension that is causing the problem. Open the Extensions Manager control panel, and turn off the extensions that you suspect are causing the problem. Restart...
Trackpad works intermittently
The trackpad operation can be affected by hand lotion, humidity, dangling jewelry, and the use of more than one finger on the trackpad. 1. Check for environmental factors such as humidity, hand lotion, or jewelry. 2. Clean the trackpad with a clean, dry lint-free cloth. 17228 Portables Jumpy or Erratic Trackpad Operation 58389 PowerBook and iBook Trackpad Does Not Respond Block Diagram PowerBook G4 12-inch 1.33 GHz PowerPC G4 microprocessor L2 cache 512K 1 1 Intrepid memory controller and I O...
Procedure Ein
1. Remove the single screw near the center of the inverter board. 4. Separate the antenna cable assembly board with attached antenna cables and Bluetooth cable from the inverter board. 5. Remove the screws from the clutch cover. 6. Remove the five screws from the bottom edge of the display bezel 7. Separate the clutch cover from the bezel and remove the LVDS cable. 7. Separate the clutch cover from the bezel and remove the LVDS cable. Replacement Note When reinstalling the clutch cover, check...
Procedure Usz
1. Remove the two screws from the shoulder bracket at the upper right corner of the optical drive. 2. Use a black stick to remove the shoulder bracket. 3. Remove the two screws from the slot load bezel. 3. Remove the two screws from the slot load bezel. Replacement Note When installing the replacement optical drive in the bottom case, make sure the slot load bezel is flush against the slot in the side of the bottom case before installing the screws. Check that the felt at the slot opening is...
The optical drive does not eject CD or DVD disc
1. Verify disc is not in use by quitting any applications that may be using the disc. 2. Press and hold Media Eject key at top right corner of keyboard. If that does not work, hold down Function fn key and Media Eject key. 3. Drag disc icon to trash or select it and press Command-E. 4. Choose Restart from Apple menu while holding down trackpad button. 5. 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...
Procedure Sxj
1. With the inner frame removed from the computer, remove the three identical screws that secure the fan to the frame. 2. Note the routing of the fan cable in the channel of the frame. Replacement Note Route the fan cable as shown. 3. Secure the replacement fan to the frame, and reassemble and test the computer.
Procedure Bml
1. Hold the DC-in board in place as you remove the screw that attaches the board to the bottom case. Note The screw might be hidden under the mylar sleeve at the lower corner of the board. 2. Pull the flat cable up from the adhesive on the bottom case. 3. Pull the board away from the side of the bottom housing. Use a black stick to lift up the board, if necessary. 5. Install the replacement DC-in board, and reassemble and test the computer. 5. Install the replacement DC-in board, and reassemble...
Procedure Hle
1. Remove the two screws at the lower right edge of the board. 2. Holding the edges of the board tilt up the logic board. 2. Holding the edges of the board tilt up the logic board. 3. While holding the board vertically, disconnect the DC-in connector cable from the underside of the logic board. 4. Remove the side EMI shield from the I O ports. Warning When installing the EMI shield over the logic board ports, make sure that the shield fits loosely and the ports are not obstructed. Replacement...