Data General 6675, Инструкции по установке и эксплуатации

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About This Document
014–001953
vi
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Do not remove replacement or upgrade subassemblies from their antistatic
packaging until the exact moment that you are ready to install them.
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Gather the tools, manuals, an ESD kit, and all other materials you will need
before you remove covers and panels from the equipment. Procedures for
removing subassemblies usually list required materials at the beginning. After
you remove a cover or panel, you should avoid moving away from the work site;
otherwise, you may build up an electrostatic charge.
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Use an ESD kit when handling circuit boards or when touching the electronic
circuits inside the equipment. If you don’t have an ESD kit, you can order one
from Data General. If an emergency arises and an ESD kit is not available,
follow the procedures in the “Emergency Procedures (without an ESD kit)”
section.
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Replace the cover(s) or panel(s) on the equipment as soon as possible so that the
electronic circuits are protected.
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If the equipment has an opening for an optional device (such as a mass–storage
drive), and the device is not installed, make sure a filler panel is installed in the
opening before connecting the equipment to the ac power outlet.
Emergency Procedures (without an ESD kit)
In an emergency when an ESD kit is not available, use the following procedures to
reduce the possibility of an electrostatic discharge by ensuring that your body and
the subassembly are at the same electrostatic potential.
CAUTION: These procedures are not a substitute for the use of an ESD kit. Follow
them only in the event of an emergency.
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Before touching any electronic circuits or boards inside the equipment, firmly
touch a bare (unpainted) surface of the equipment.
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Before removing any replacement or upgrade subassembly from its antistatic
bag, place one hand firmly on an unpainted surface of the chassis, and at the
same time, pick up the replacement or upgrade subassembly while it is still
sealed in the antistatic bag. Once you have done this, do not move around the
room or contact other furnishings, personnel, or surfaces until you have
installed and secured the subassembly in the equipment.
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Remove the subassembly from the antistatic bag, handling printed–circuit
boards by the edges. Avoid touching components and circuits on a
printed– circuit board.
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If you must move around the room or touch other surfaces before securing the
subassembly in the equipment, first place the subassembly back in the antistatic
bag. When you are ready again to install the subassembly repeat these
procedures.
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Order an ESD kit from Data General for the next time you need to add or
remove a cover or panel.