10
Before You Begin
WARNING
Disconnect the system from AC power before servicing internal components! Failure to
remove AC power may result in equipment damage or personal injury.
NOTE
See Chapter 1, “Accessing the System,” for instructions on opening the system and protecting
against electrostatic discharge.
CAUTION
Follow all warnings and cautions in servicing instructions. If you fail to follow documented,
approved procedures, personal injury or damage to equipment can result.
CAUTION
Use an antistatic wrist strap for all servicing procedures to avoid the possibility of electrostatic
discharge.
CAUTION
Do not overtighten screws and other fasteners to avoid damaging threads.
Case Components
Ordinarily you will not need to replace any of the external case components unless they are
broken or cosmetically damaged. All case components are designed for durability, but the
item that may require replacement first is the door and hinge assembly.
To replace the hinge or door, you must first remove the top cover. To replace the face panel,
you must remove the top cover and the door.
To replace the top cover:
1. Remove the top cover. See Chapter 1, “Accessing the System,” for details.
2. Install the new cover.
To replace the door assembly:
1. Remove the top cover. See Chapter 1, “Accessing the System,” for details.
2. Lift the door and hold it at a 90-degree angle from the face panel.
3. Insert a small flat-blade screwdriver between the door and hinge, near one of the square
holes on the underside of the door.
