IBM 5251 Series Maintenance Information Manual page 3

Preface
This maintenance information manual is to be used for
servicing the IBM 5251 Models 1 and 11 Display
Station. Customer engineers using this manual are
assumed to have completed the course on the 5251
Models 1 and 11 Display Station.
The maintenance information manual (MIM) has two
major sections: maintenance and theory. Maintenance
includes locations, procedures, and diagnostic aids.
Theory includes data flow, functional units, and features.
Definitions of terms and abbreviations that are not
common, but are used in the MIM, are in the Glossary
of Terms and Abbreviations.
Setup instructions for the 5251 Models 1 and 11
Display Station are in Appendix A.
Note:
MIM pages 1-5, 1-8, 1-27, 1-45, 1-48, 1-49, 1-77,
1-78,1-80,1-81,1-83,1-89,1-91,1-92,1-95,1-96,1-99,
1-100,1-103,3-2, and A-1 have DANGER and/or
CAUTION notices. If desired, translate these notices and
write your own words on the blank lines provided on these
pages.
Fourth Edition (July 1979)
Related Publications
Related information can be found in the following IBM
5250 Informaton Display System manuals:
• IBM 5250 Display System Reference Card,
GX21-9249
• IBM 5251 Display Station Models 1 and 11, IBM
5252 Dual Display Station Operator's Guide,
GA21-9248
• IBM 5251 Display Station Models 1 and 11
Maintenance Analysis Procedures, SY31-0571
• IBM 5256 Printer Operator's Guide, GA21-9260
• IBM 5256 Printer Maintenance Information Manual,
SY31-0462
• IBM 5256 Printer Maintenance Analysis Procedures,
SY31-0572
• IBM 5252 Dual Display Station Maintenance
Information Manual, SY31-0492
• IBM 5252 Dual Display Station Maintenance Analysis
Procedures, SY31-0584
• IBM 5250 Information Display System Planning and
Site Preparation Guide, GA21-9337
This edition has important changes. It obsoletes SY31-0461-2 and Technical
Newsletter SN31-6259. The changes are extensive and the manual should be
reviewed in its entlrety.
Use this publication only for the purpose stated in the
Preface.
Publications are not stocked at the address given below. Make your request for
IBM manuals to your IBM representative or to the IBM branch office for your
area.
This publication could contain errors. Write your comments on the form at the
back of this manual. If the form has been removed, send your comments to IBM
Corporation, Publications, Department 245, Rochester, Minnesota 55901. IBM
may use and distribute any of the information you supply in any way it believes
appropriate without incurring any obligation whatever. You may, of course,
continue to use the information you supply.
©
Copyright International Business Machines Corporation 1977, 1978, 1979
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