Apple imac 17 inch late 2006 cd User Manual

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 141
Fan Sound
Fans running at full speed after the computer turns on
The customer may have entered a diagnostic mode that causes the fans to run at full speed.* 
Restarting the system will not restore normal fan operation. To solve the problem, the user or 
technician should do the following:
Shut down the system.
Disconnect the power cord and wait 15 seconds.
Reconnect the power cord and wait 5 seconds.
Power on the system.
*Note:...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 142
sound is related to one of the components. Go to step 4. 
 
The sound varies: Under normal conditions rotating blowers will make a slight hum that 
varies in relationship with their rotational speed and the amount of air that they are moving. 
Let’s see if this is indeed the case. Go to Next Step. 
Are the fans making a normal humming sound that increases/decreases in relation to 
processor usage? As the fans increase their speed...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 143
remove the access door, front bezel, and EMI shield.  
Stand up the computer, plug it in, and start it up by pressing the external power button. 
 
As the machine starts up, listen carefully to each of the three fans, and see if you can locate 
the fan from which the objectionable ticking, whistling, or squealing sound is coming. The 
CPU fan is the left-most fan, the hard drive fan is in the center, and the optical drive fan is...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 144
AirPort
Not able to connect wirelessly with AirPort
1. From the Apple menu, choose About this Mac. 
2- Click on More Info. System Profiler should open. 
3- In System Profiler, in the column on the left, look under Network for a line called “AirPort Card”. 
Select that line. 
4- Does the section to the right say “No Information Found”? 
Yes: The computer doesn’t realize it has an AirPort card installed. Go to step. 5 
No: The iMac...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 14
IR Remote
Remote won’t communicate with system applications such as iTunes or iPhoto, or with the 
optical drive.
Make sure of the following when using the Apple Remote: 
You are within 30 feet of the front of the computer.
You have an unobstructed line-of-sight to the front of the computer.
You are pointing the lens end of the Apple Remote directly at the front of the computer.
The computer is powered on and awake.
The...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 14
IR Sensor/Receiver
Supported applications do not respond to input from the remote control.
Perform the checks above under “IR Remote” to verify that the Apple Remote is functioning 
correctly, and retest. Do supported applications now respond to input from the IR remote? 
Yes: Problem resolved. 
No: Go to the next step.
Verify that the IR Sensor can be seen in the Apple System Profiler. Open the Apple System 
Profiler and...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 14
Built-in iSight Camera
The built-in camera is not recognized.
Boot the iMac to the desktop and launch iChat AV. Note: You do not need to be connected 
to a network to use iChat AV to troubleshoot. Verify that the correct versions of Mac OS X 
and iChat AV are installed. Reinstall or update software as needed. 
Open the iChat AV preferences and click on the ‘Video’ icon. Verify whether the camera is 
recognized by the iChat AV...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 14
bandwidth limitations when using iChat over the internet. Instruct the customer to use the 
iChat AV connection doctor feature to verify that there is sufficient bandwidth to have a 
video iChat session without a significant degradation of image quality. 
 
No:  The camera may not be functioning normally. Replace the camera board in the front 
bezel and retest.
Camera recognized but no audio
Open the System Preferences window...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 14
Speakers
Can’t hear sound from the speakers.
Disconnect any external microphones, speakers, or headphones. 
Access System Preferences and select Sound. In the Sound pane, select Output and make 
sure the Internal speakers are selected as the device for sound output, the Output volume is 
adequate, and Mute is not selected.  Do you have sound now? 
Yes: Problem resolved. 
No: Go to the next step.  
Reset parameter RAM. Press...

iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 10
If the speakers did not solve the problem, replace the logic board.
Mouse
My mouse doesn’t work at all.
Turn over the mouse and check the if the red LED on the underside of the mouse. Is the LED 
lit? 
 
Yes: The mouse has power. Try using the mouse on another surface. Non-reflective, opaque 
surfaces without repetitive patterns work best. The surface should be clean, but not shiny. 
Optical mice won’t work on glass, mirrored...