Psion Workabout MX, Service Manual

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Confidential - PSION INDUSTRIAL PLC
Workabout MX Service Manual
iv V ersion 1.0
Note
The Psion Workabout contains CMOS devices that may be damaged by electrostatic
discharge (ESD). The following steps to minimise ESD must be taken before the unit is
dismantled. To prevent any damage that could result if the unit or its parts are not handled
properly, observe the following precautions during any handling procedures:
n
Minimise all handling of static-sensitive components and assemblies.
n
Transport and store static-sensitive components and assemblies in their original
containers or in anti-static bags.
n
Label accordingly any package that contains static-sensitive components or assemblies.
n
Discharge static electricity from the body by wearing a grounded anti-static wrist strap
while handling these components. Servicing static-sensitive components or assemblies
should be done only at a static-free work station by qualified service technicians.
Increasing the humidity in the work area minimises static electricity problems.
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Do not allow anything that can generate or hold a static charge on the work station
surface.
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Pick up components by their bodies, never by their leads.
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Do not slide components over any surface.
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Avoid handling components in areas with a floor or work-surface covering that can
generate static charge.
FCC Information for the USA
Radio and Television Interference:
This equipment radiates radio frequency energy and if not used properly - that is, in strict accordance
with the instructions in this manual - may cause interference to Radio and Television reception.
It has been tested and found to comply with the limits for a Class B computing device pursuant to part
15 of the FCC Rules. These are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
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Reorient or relocate the receiving antenna.
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Increase the separation distance between the equipment and the receiver.
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If you are using the Workabout computer with a mains adapter, plug it into an outlet which is on a
different circuit from that to which the receiver is connected.
Consult an authorised Psion dealer or an experienced radio/TV technician for help.
This equipment was tested for FCC compliance under conditions that included the use of shielded
cables and connectors between it and the peripherals. It is important that you use shielded cable and
connectors to reduce the possibility of causing Radio and Television interference. Shielded cables,
suitable for the Workabout, can be obtained from an authorised Psion dealer. If the user modifies the
Workabout or the Multiple Docking Station, and these modifications are not approved by Psion, the
FCC may withdraw the user's right to operate the equipment. For customers in the USA, the following
booklet prepared by the Federal Communications Commission may be of help: "How to Identify and
Resolve Radio-TV Interference Problems". This booklet is available from the US Government Printing
Office, Washington, DC 20402 - Stock No: 004-000-00345-4.
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