46 Chapter 3
Pre-disassembly Instructions
Before proceeding with the disassembly procedure, make sure that you do the following:
1. Turn off the power to the system and all peripherals.
2. Unplug the AC adapter and all power and signal cables from the system.
NOTE: Make sure you match the AC adapter with the correct model. Yell ow for UMA (65W) and blue for
discrete (90W).
3. Place the system on a flat, stable surface.