HP Visualize J5000 hp Visualize J5000, J7000 workstations service handbook (a4 - Page 92

Field Replaceable Units (FRUs) FRU Removal and Replacement FRU Removal and Replacement The procedures in this section describe how to remove and replace J5000 and J7000 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 J5000/J7000 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. 88 Chapter 4