User's Manual

Troubleshooting Introduction - 1
Introduction
This chapter contains basic theory of operations information as
well as detailed Symptom/Cure tables, both of which should help
you troubleshoot and repair the iMac, iMac DV and iMac DV
Special Edition systems.
The Symptom/Cure tables are broken down into two sections:
problems that can occur at startup time-before the Finder
appears on the screen; and problems that can occur after a
successful startup. Each major symptom has its own symptom/
cure table.
In the left-hand column of each table are the possible causes of the
symptom, with the corresponding cures in the right-hand column.
You should also follow the tables in the order presented as they
represent the most logical order for cause and cure. Verify
whether or not the product continues to exhibit the symptom. If
the symptom persists, try the next cure. (
Note
: If you have
replaced a module, reinstall the original module before you
proceed to the next fix.)
For additional assistance, contact Apple Technical Support.