Apple G4 (12-INCH DVI) manual Misc. Symptoms

Misc. Symptoms

The computer runs with battery, but not with the power adapter plugged into wall outlet

1.Try known-good power outlet.

2.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 battery does not have sufficient charge to turn on.

Reset the power manager by pressing the key combination Control-Option-Shift- power.

Warning: Make sure you do not hold down the "fn" key when resetting the power manager.

3.Replace DC-in board

4.Replace DC-to-DC board.

5.Replace logic board.

The computer runs when plugged into a wall outlet but not on battery power

1.Reseat battery to verify battery is seated correctly with battery lock engaged.

2.Try known-good charged battery.

3.Reset the power manager by pressing the key combination Control-Option-Shift- power.

Warning: Make sure you do not hold down the "fn" key when resetting the power manager.

4.Replace DC-to-DC board.

5.Replace logic board.

12 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts