Apple imac 20 inch late 2006 User Manual

iMac (20-inch Late 2006) Troubleshooting — Symptom Charts 181
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 and click on Sound. 
1.  
Verify that the built in iSight camera has been selected as the device for sound...

iMac (20-inch Late 2006) Troubleshooting — Symptom Charts 18 2
Speakers
Can’t hear sound from the speakers.
Disconnect any external microphones, speakers, or headphones. 
1.  
Access System Preferences and select Sound. In the Sound pane, select Output and make 
2.  
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 (20-inch Late 2006) Troubleshooting — Symptom Charts 18 3
Mouse
The mouse is slow or not tracking smoothly
Refer to Knowledge Base article 93369.
The Apple Wireless keyboard and mouse have connection issues.
If you have any of these issues, refer to Knowledge Base article 86496 for more information.
If you can’t wake the computer up using the Apple Wireless Keyboard or Apple Wireless 
• 
Mouse.
You can’t pair the computer with the Apple Wireless Keyboard or Apple Wireless Mouse.
• 
You can’t...

iMac (20-inch Late 2006) Troubleshooting — Symptom Charts 18 4
mouse. If the issue persists with a known good mouse, replace the main logic board.
Keyboard
The Apple Wireless keyboard and mouse have connection issues.
If you have any of these issues, refer to Knowledge Base article 86496 for more information.If you can’t wake the computer up using the Apple Wireless Keyboard or Apple Wireless 
• 
Mouse.
You can’t pair the computer with the Apple Wireless Keyboard or Apple Wireless Mouse.
• 
You can’t...

iMac (20-inch Late 2006) Troubleshooting — Symptom Charts 18 5
My keys are sticky or slow to respond.
Try a known good keyboard.
1.  
Open System Preferences. Click on the keyboard and mouse icon. Adjust the “key repeat 
2.  
speed and delay until repeat” rate.
Replace the keyboard.
3. 
When I type, strange characters appear on the screen.
Depending on your iMac’s settings, a simple keystroke can change your keyboard from 
1.  
English to Japanese. This can result in some pretty funny characters showing...

iMac (20-inch Late 2006) Troubleshooting — Symptom Charts 186
USB
A USB device doesn’t work
Please unplug all of your USB devices from your iMac except your Apple Keyboard and Apple 
1.  
mouse.
Now plug your device directly into the back of your iMac. Does it work as expected now? 
2.  
 
Yes: Your device works when plugged directly into the computer. This indicates a conflict 
with one of the other USB devices. You can test by gradually adding your devices back 
and seeing where the issue occurs, then...

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iMac (20-inch Late 2006) 

iMac (20-inch Late 2006) — Views 188
iMac (20-inch Late 2006)—Upper Exploded View
Front Bezel, w/camera, 20”
922-7875
Camera Board
922-7833
Camera Board/IR Cable 922-7762
Bracket, LCD, Right
922-7004
Display Panel, LCD,
661-3895 (Samsung) 661-3881 (LG)
Bracket,LCD, Left 922-7005
Shield, EMI, Lower LCD  (not shown) 922-7770
LVDS Cable922-7251
Optical Bezel
922-6997, MKE
922-7109, Pioneer
Speakers
922-6988
Hard Drive
661-4026 250 GB
661-4027 500 GB
Cable,Hard Drive Sensor
922-7296
Hard Drive Temp Sensor...

iMac (20-inch Late 2006) — Views 18 9
iMac (20-inch Late 2006)—Lower Exploded View
Fan, Optical Drive
922-7298
Power Supply  AC/DC
661-3780
Cover,  
Clutch Mechanis m
922-700 7
Clutch,  Mechanis m
922-700 2
Cable, Ground, Power Suppl
y
                          922-776 0
Cable, Powe
r, AC/DC, SA TA, Inverter
                          922-776 1
Rear Housing
922-7769
SDRAM, SO-DIMM
661-41 14 512 MB, DDR2, 667
661-41 15 1GB, DDR2, 667
Not Shown:
Modem, External 661-3797
Battery 922-647 6
Power Cord...

iMac (20-inch Late 2006) Screw Chart 190
Screw Chart
Screw Chart : iMac (20-inch Late 2006): page 1 
Note: Screws are not to scale.
922-6800                 T10
- LCD clips to front bezel
- AC Power Inlet to chassis
- Inverter board to rear cover
- Logic board to chassis
- Rear shield to rear cover
- Support channel to rear 
cover922-6850                 T10- Chassis to rear cover
922-6842                 T10- Power Supply board to rear 
cover
- Logic board to chassis
922-xxx               T10
Logic to...