Warning Resetting the power manager means you will also need to reset the date and time using the Date Time control

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). 7. Connect an external display, and check for video on external display. If video is fine on external display, replace LCD panel. If video symptom is same on external display, replace logic board. 8. Verify backlight cable and LVDS cable connections are seated properly and that the cables are not damaged (refer to display...

Apple Powermac G4 12 Hard Drive

Power Mac Hdd Replacement

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

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...

Procedure

Powerbook Lcd Connection

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...

The computer freezes during startup or a flashing question mark appears

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...

The optical drive does not eject CD or DVD disc

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...