User Guide

iMac (Early 2006 20-inch) Take Apart — General Information 12
What’s New
March 2006
A Screw Chart was added.
Access tool modication instructions were added. Refer to Opening the Computer in this
chapter.
Troubleshooting symptom added: No audio from internal speakers (may hear putt-putt).
February 2006: Memory
The photographs have been updated in the memory chapter
What’s Different on this iMac?
Logic board
Intel Core Processor 1.83 and 2.0 GHz
No troubleshooting LEDs
Battery is located on the top side of the logic board
AirPort Extreme and Bluetooth
Separate antennas
Separate parts: AirPort Extreme and Bluetooth boards
Memory
SO-DIMM DDR2 667 MHz, memory slot
Memory ejector levers are visibly different from the iMac G5 (iSight) models and should be
used as shown in the Take Apart section.
Ports
Mini-DVI video out port (for mirroring or extending the desktop)
Displays
LVDS (Low Voltage Differential Signaling ) displays
Power Management
SMC replaces SMU (See SMC Overview and SMC Reset Procedure)
Diagnostics
Apple Hardware Test and Apple Service Diagnostic have new interfaces and procedures (See
Diagnostics)
Troubleshooting
New procedures for troubleshooting no power (See Symptom Charts)
New procedures for troubleshooting no video (See Symptom Charts)
Updated procedures for Target Disk Mode (See Using Target Disk Mode)
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