Safety Precautions
(Safety symbols ' 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.
WARNING | erious shock ha'ard leading to death or injur& ma& result if | |
&ou do not take the follo%ing precautions: | ||
| ||
| Ensure that the ac po%er outlet (mains) has a protective earth | |
| (ground) terminal. | |
| %itch the plotter off, and disconnect it from the po%er | |
| source prior to performing an& maintenance. | |
| Prevent %ater or other liquids from running onto electrical | |
| components or circuits, or through openings in the enclosure. |
ESD Precautions
To prevent damage to the plotter circuits from high2voltage electrostatic discharge (ESD)
1Do not wear clothing that is subject to static build2up.
2Do not handle integrated circuits (ICs) in carpeted areas.
3Do 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.
4Ground your body while disassembling and working on the plotter.
5After 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.
6After 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.
622 RemovalandReplacement | C4699290000 |