Apple iMac G5, 20-inch - Manual (Page 277)

iMac G5, 20-inch Troubleshooting - 53 Symptom Charts
I hear sound out of only one speaker.
1. Are there any external microphones, speakers or headphones plugged into the iMac?
Yes: Disconnect any external microphones, speakers, or headphones. Do you hear
audio from both of the built in speakers on your iMac?
– Yes: Good. It looks like the built-in speakers are working properly. This may be an
issue with the microphone, speakers or headphones that were plugged into your
iMac. Please work with the manufacturer to troubleshoot this issue.
– No: Go to step 2.
No: Check your speaker balance. If your balance setting was set to the left or right
speaker, you would only hear sound from one speaker. Go to step 2.
2. Open System Preferences. (System Preferences can be found under the Apple
menu.)
3. Click once on the sound icon.
4. Click once on the Output tab.
5. Make sure your balance setting is in the middle. After adjusting the audio balance, do
you have audio from both speakers now?
Yes: It looks like the issue was the balance was not set properly.
No: Replace the speakers.
6. If the speakers did not solve the problem, replace the logic board.
Mouse
My mouse doesn’t work at all.
1. Try using the mouse on another surface. Non-reflective, opaque surfaces without
repetitive patterns work best. The surface should be clean, but not shiny.
2. Unplug any USB devices plugged into your computer, other than the Apple Mouse and
Apple Keyboard.
3. Try another known good USB mouse.
4. Replace the mouse.
5. Replace the logic board.
My mouse works intermittently (the cursor freezes randomly).
1. Unplug any USB devices plugged into your computer, other than the Apple Mouse and
Apple Keyboard.
2. Reconnect the USB devices one by one and test your mouse after each to figure out
which device is causing the issue. Once you have isolated the “problem child” that isn't
playing well with others, you will want to contact the manufacturer of that device to see