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iMac Intel 27" EMC 2639 Logic Board Replacement

Potentially Dangerous

Potentially Dangerous

Injury may result if this procedure is not followed properly. Use caution and follow all warnings.

Replace the Logic Board in your iMac Intel 27" EMC 2639.

Use this guide to remove the logic board and strip it of all its peripherals: SSD, AirPort, heat sink and CPU, and RAM.

Before beginning any work on your iMac: Unplug the computer and press and hold the power button for ten seconds to discharge the power supply's capacitors.

Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.