HP 220 - Manual (Page 66)

6Ć2 Removal and Replacement C3187Ć90000
Safety Precautions
(Safety symbols D Immediately after the table of contents.)
Review WARNING and CAUTION symbols and instructions before you service the plotters.
Follow these warnings and cautions for your protection and to avoid damaging the plotter.
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ESD Precautions
To prevent damage to the plotter circuits from highĆvoltage electrostatic discharge (ESD)
E Do not wear clothing that is subject to static buildĆup.
F Do not handle integrated circuits (ICs) in carpeted areas.
G Do not remove an IC or a printed circuit assembly (PCA) from its conductive foam pad or
conductive packaging until you are ready to install it.
4 Ground your body while disassembling and working on the plotter.
5 After removing a cover from the plotter, attach a clip lead between the PCA common and
earth ground. Touch all tools to earth ground to remove static charges before using them
on the plotter.
N After removing any PCA from the plotter, place it on a conductive foam pad or into its
conductive packaging to prevent ESD damage to any ICs on the PCA.
Reassembly
Most of the procedures in this chapter describe how to disassemble the plotter. Unless
otherwise specified, reassemble the parts in the reverse order of disassembly.