HP j6700, Service Handbook

Page: 84 / 152

84 Chapter 4
Field Replaceable Units (FRUs)
FRU Removal and Replacement
FRU Removal and Replacement
The procedures in this section describe how to remove and replace J6700 workstation
FRUs. Observe the electrostatic discharge (ESD) precautions and the prerequisites for
removing and replacing FRUs in the next two subsections, as well as any NOTEs,
CAUTIONs, and WARNINGs in each FRU removal and replacement procedure.
NOTE If you need to install a new FRU, simply follow the procedures for replacing
the FRU in this chapter. (That is, replacement procedures are the same as
those for installing new FRUs.)
Electrostatic Discharge (ESD) Precautions
To prevent damage to the J6700 workstation, observe all of the following ESD precautions
while performing FRU removal and replacement procedures:
1. Remove all ESD-generating materials from the work area in which you will remove and
replace a workstation’s FRU(s).
2. Stand on an ESD (static-free) mat.
3. Wear a grounding wrist strap to ensure that any accumulated electrostatic charge
discharges from your body to ground.
4. Connect all equipment together, including the ESD mat, grounding wrist strap,
workstation, and peripherals.
5. Keep uninstalled printed circuit boards in their protective antistatic bags.
6. Once you have removed printed circuit boards from their protective antistatic bags,
handle the printed circuit boards by their edges only.