You are troubleshooting an iMac (Early 2008) that does not power on. You notice that all diagnostic LEDs remain off when a known-good power cord is connected to the iMac and to a known-good power outlet. What is most likely the cause of these symptoms?
Faulty power supply
Faulty optical drive
Faulty LCD panel
Faulty video card
Want to practice for 9L0-009 - Macintosh Service Certification Exam (9L0-009) ?