Lesson 12. Troubleshooting an iMac (24-inch)

Reference Files

iMac (24-inch) service manual (c15_imac_24in.pdf)

Time

This lesson takes approximately 45 minutes to complete.

Goals

Identify the Intel-based Mac startup key combinations

Identify changes made to the startup management screens

Locate and describe known issues and solutions for the system

Given the symptom of “No Video,” return the product to normal operation

Describe the types of symptoms that resetting the SMC would likely resolve

Identify the diagnostic LED used to determine a “No Power” condition

Identify the diagnostic LED used to determine a “No Video” condition

In this lesson, we’ll review general troubleshooting procedures and symptom charts, providing an overview that will ...

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