Nexcom EBC320-LX8, Руководство пользователя

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Copyright © 2006 NEXCOM International Co., LTD. All rights reserved
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Chapter 2 Jumper Setting
Embedded Board Computer EBC 320 Series User’s Manual
This chapter of the User’s Manual describes how to set jumpers.
Note: The procedures that follow are generic for all EBC 320 series.
2.1 Before You Begin
Ensure you have a stable, clean working environment. Dust and dirt can get into compo-
nents and cause a malfunction. Use containers to keep small components separated.
Adequate lighting and proper tools can prevent you from accidentally damaging the
internal components. Most of the procedures that follow require only a few simple tools,
including the following:
A Philips screwdriver
A flat-tipped screwdriver
A set of jewelers Screwdrivers
A grounding strap
An anti-static pad
Using your fingers can disconnect most of the connections. It is recommended that you
do not use needle-nosed pliers to disconnect connections as these can damage the soft
metal or plastic parts of the connectors.
Before working on internal components, make sure that the power is off. Ground yourself
before touching any internal components, by touching a metal object. Static electricity
can damage many of the electronic components. Humid environment tend to have less
static electricity than dry environments. A grounding strap is warranted whenever danger
of static electricity exists.
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2.2 Precautions
Computer components and electronic circuit boards can be damaged by discharges of
static electricity.
Working on the computers that are still connected to a power supply can be extremely
dangerous. Follow the guidelines below to avoid damage to your computer or yourself:
Always disconnect the unit from the power outlet whenever you are working inside the
case.
If possible, wear a grounded wrist strap when you are working inside the computer
case. Alternatively, discharge any static electricity by touching the bare metal chassis
of the unit case, or the bare metal body of any other grounded appliance.
Hold electronic circuit boards (such as the EBC 320 board) by the edges only. Do
not touch the components on the board unless it is necessary to do so. Don’t flex or
stress the circuit board.
Leave all components inside the static-proof packaging that they shipped with until
they are ready for installation.
Use correct screws and do not over tighten screws. •
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