iMac Manual

iMac (27-inch, Mid 2010)
Contents
About This Guide
Updates 10
Updated 9 September 2010 10
Updated 9 August 2010 10
Apple Technician Guide introduced 27 July 2010 10
Feedback 10
Basics
Overview 12
Identifying Features 13
Product Congurations 13
Safety Precautions 14
Serial Number Location 15
New Accessories 16
Magic Trackpad 16
Apple Battery Charger 18
Troubleshooting
General Troubleshooting 20
Wireless Troubleshooting 20
Update System Software & Firmware 20
Troubleshooting Theory 20
Hardware vs. Software 21
Common Reset Procedures 21
Power On Self Test (POST) 21
Resetting the System Management Controller (SMC) 22
Resetting Parameter RAM (PRAM) 22
Starting Up in Safe Mode 23
Removing the Battery, Measuring DC Voltage 24
Diagnostics 25
Sensors Errors 25
Sensor Locations 27
Diagnostic LEDs 29
Location of Diagnostic LEDs 29