Technical data
2
Protecting Against Electrostatic Discharge
Sensitive components inside the base unit can be damaged by static electricity. To protect against this
possibility, take the following precautions when working with the system’s internal components.
Touch the bare metal of the base unit to ensure it and your body are at the same electric potential.
Handle all printed circuit boards as little as possible and by the edges only. Leave new parts in
their protective packaging until you install them.
Use a disposable or reusable antistatic wrist strap when servicing or upgrading the system. Once
a disposable wrist strap is used, it cannot be used again. A reusable antistatic wrist strap can be
attached to any bare metal part of the base unit. The metal conductor bead in the elastic sleeve of
reusable antistatic straps must contact bare skin.
Removing the Face Plate
To remove the face plate:
1. Remove the cover.
2. Remove one lower screw on each side of system front that secures handle to the base unit.
3. Remove the six screws that secure face plate to the base unit.
4. Pull the face plate toward you to remove it. Note how the bottom lip of the face plate attaches to
the cutout in front of the power supply.
Attaching the Face Plate
To attach the face plate:
1. Push the face plate onto the base unit. Ensure that the top part of the lip at bottom slides over the
cutout in front of the power supply.
2. Adjust the face plate as needed to ensure all components are flush.
3. Secure the face plate to the base unit.
4. Close the cover.
Closing the Base Unit
CAUTION After servicing the system, always replace the covers that were removed. The covers ensure the
system maintains proper air flow, so internal components do not overheat and fail. The covers also
ensure that electromagnetic interference (EMI) emissions remain below the standard requirements.
To close the base unit:
1. Remove the antistatic wrist strap from the base unit.
2. Replace the cover.
3. Slide the base unit into the rack.
4. Secure the base unit with screws at each corner of the face plate.