Maintenance Information Manual; Maintenance; Diagnostic Aids; Theory - IBM 5100 Maintenance Information Manual

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Maintenance Information Manual
The information contained in this manual is to be used
as reference material when diagnosing machine failures.
The maintenance information manual consists of
maintenance procedures, diagnostic aids, theory, high
level logics, and programming problem solving
information. An appendix provides information on
general topics that may be helpful in servicing the 5100
Portable Computer.
The format for page numbering is XXX-YYV.Z; where
XXX is the section number, YVY is the page number,
and Z (although not normally used) is for expansion
when it is not feasible to renumber previously numbered
pages.
Referencing techniques used within the maintenance
information manual are:
MAP three-digit references
Page-to-page
On page
MAP three-digit reference numbers are assigned to
location drawings and maintenance procedures for
referencing from the MAPs. For example, 227 refers to
the tape control card pin assignments. Page-to-page or
references within a section are to the specific page
containing the information. For example, see page 2-16.
On page references are: this page, see below, etc, or
for graphics with callouts, to the specific callout.
MAINTENANCE
This section consists of location drawings and
maintenance procedures for repairing or replacing FRUs.
The location drawings are of two types: An overall 5100
Portable Computer reference drawing showing the major
functional units, and detail location drawings showing
the FRUs within a functional unit. Maintenance
procedures consist of service checks, removals,
replacements, and adjustment procedures. All
procedures and drawing have three-digit reference
numbers assigned for referencing from the MAPs.
DIAGNOSTIC AIDS
Diagnostic program descriptions, how to use them, and
the options available when they are in control are found
in this section. MOl information for the printer,
communications, auxiliary tape, and tape write functions
are also located here. To further aid in diagnosing
machine failures, a list of halt codes and error conditions
is included in this section.
THEORY
The theory section contains descriptions of the 5100
Portable Computer functional units and features. These
descriptions are preceded by a system overview that
gives you a general picture of the 5100 overall operation
and where each function or feature fits.
CIRCUITS
This section contains a card plug chart, signal cable
charts, voltage distribution diagrams, and high level logic
diagrams with pin numbers. The logics provide you with
only that information that allows you to understand the
5100 Portable computer functions and probe points for
checking these functions.
LANGUAGE SUPPORT
This section contains the reference material for
determining the causes of programming problems.
APPENDIX
The appendix contains the installation procedures for the
5100 Portable Computer and for the 5106 Auxiliary Tape
Drive. Additional maintenance information is also
located here.
ABBREVIATIONS AND GLOSSARY
This section contains definitions of uncommon terms
and abbreviations used within the maintenance
information manual and the MAPs.
INDEX
The index is a detailed listing of all topics within the
maintenance information manual.
Maintenance Information Manual 1-11