Apple PowerBook G3 400 Troubleshooting
Keyboard not functioning ¶
The display is on but the keyboard is not functioning as an input device.
Loose Keyboard Connection ¶
The keyboard could be loose, in which case you will have to reconnect the keyboard. You must go through the keyboard repair guide to fix this.
Broken Keyboard ¶
If the reconnection does not work, replacement may be the required course of action. The replacement process is the same in this case.
Bad display ¶
It is possible that it appears nothing is happening because of a faulty or imperfect display.
Loose Display Connection ¶
The display might be connected poorly, in which case you must follow the display repair guide steps to fix your problem.
Broken Display ¶
If that doesn't fix the problem, the display could possibly be broken. In that case you must also follow the display repair guide steps to fix your problem.
Unrecognized RAM ¶
If the computer does not recognized the RAM it may have become disconnected or may be broken.
Disconnected RAM ¶
The RAM might have become loose in which case you will need to follow the RAM repair guide to reconnect the RAM.
Broken Ram ¶
If the RAM is broken, it will need to be replaced. You will follow the same steps as before to replace the RAM.
Faulty sound card ¶
If the sound does not work, the sound card could be defective.
Software Problems ¶
Make sure the volume is up and the computer is not on mute. The proper drivers must also be installed.
Broken Speakers ¶
If the sound still does not work and software is not an issue, check the speakers and see if they are broken.
Replace sound Card ¶
If the software and speakers are not the problem, then the sound-card will need to be replaced. Follow the sound card repair guide to replace the broken card.
Hard drive ¶
If information cannot be saved and your previous information cannot be viewed, the hard drive may be broken.
Replace the Hard Drive ¶
Follow the hard drive repair guide to remove the broken drive and install a new one.