Apple g4 User Manual

Page of 293
 Troubleshooting
Symptom Charts/ Sound -  5 4
No sound from Apple 
Pro Speakers when 
attached to a Power 
Mac G4 (Digital 
Audio/QuickSilvers) 
computer
1
Push on the Apple Pro Speaker jack to make sure it is firmly 
inserted into the Apple Speaker sound output port. (The Apple 
Pro Speaker jack has two detents. You should feel them as you 
push the jack into the sound output port. Giving the jack a 
slight twist while inserting it into the port may make a 
better connection.)
2
Verify the speaker volume and balance are set appropriately 
in the Sound system preference or Sound control panel and 
mute is not checked.
3
Clear parameter RAM. Hold down Command-Option-P-R 
during startup until you hear a second startup chime.
4
Reinstall system software.
5
Replace the Apple Pro Speakers.