PC-D320/PC-D340/FAX-L400 Chapter 3: Assembly and Disassembly
3-2
Movable parts
In order to prevent accidents with movable parts, be sure to remove the power cable when
conducting service that requires disassembly. Also, take care that
personal accessories and hair, etc., are not caught in any moving parts.
1.2 General Cautions
Damage due to electrostatic discharge
This machine contains contact sensors and printed circuit boards that use ROMs, RAMs,
custom chips and other electronic components that are vulnerable to damage by
electrostatic discharge.
Be careful to avoid any damage from electrostatic discharge when conducting
service that requires disassembly.
Static electricity warning
Electrostatic discharge can destroy electronic components and alter electrical
characteristics. Plastic tools and even your hands, if they are not earthed,
contain sufficient static electricity to damage electronic components.
The following materials may be used as countermeasures against electrostatic
discharge:
• an earthed, conductive mat
• an earthed wrist-strap
• crocodile clips for the purpose of grounding metallic parts of the main unit
For service conducted on the user’s premises, etc., where such countermeasure materials are
not available, the following countermeasures may be employed.
• Use anti-static bags for the storage and carrying of PCBs and electrical elements.
• Avoid silk and polyester clothing and leather soled shoes, favouring instead cotton clothes
and rubber soled shoes.
• Avoid working in a carpeted area.
• Before beginning the work, touch the grounded earth terminals of the main unit in order to
discharge any static electricity.
• Use a wrist-strap and earth the metal parts of the main unit.
• PCBs and electrical elements must lifted around the edges and their terminals must not be
touched.
Caution against electrical shock while working with power on
In cases where service must be carried out with power on, via a connected
power cable, be sure to wear an anti-static wrist-strap or other earth, in order
to prevent an electrical path being created through you body.
Содержание PC-D320
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