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945424-9701
PREFACE
This manual provides maintenance instructions for the United States, European, and Japanese
versions
of
the Texas Instruments Model 911 Video Display Terminal.
It
also provides theory
of
operation for the terminal. The manual consists
of
two sections and six appendixes:
I Theory
of
Operation - This section contains a detailed block diagram description
of
the
Model 911 Video Display Terminal, describes the terminal's interfaces with the Model
990 Computer, and provides a discussion
of
the terminal's operation.
II
Maintenance - This section provides troubleshooting and fault isolation procedures for
the terminal.
A. United Kingdom Model - This appendix describes the United Kingdom version
of
the
911 Video Display Terminal (VDT) keyboard, including codes, modes, matrix, and
special character set produced by it.
B.
French Model - This appendix illustrates the French version
of
the 911 VDT keyboard,
including codes, modes, matrix, and special character set produced by it.
C.
German Model - This appendix illustrates the German version
of
the 911 VDT key-
board, including codes, modes, matrix, and special character set produced by it.
D.
Swedish/Finnish Model - This appendix illustrates the Swedish/Finnish version
of
the
911 VDT keyboard, including codes, modes, matrix, and special character set produced
by it.
E.
Norwegian/Danish Model - This appendix illustrates the Norwegian/Danish version
of
the 911 VDT keyboard, including codes, modes, matrix, and special character set pro-
duced by it.
F.
Japanese Katakana Model - This appendix illustrates the Japanese Katakana keyboard,
including codes, modes, matrix, special character set, keyboard logic, and additional
128 eight-bit displayed character set produced by it.
Additional information related
to
the Model 911 Video Display Terminal may be found in the
following documents:
Title
990
Computer
Family
Systems Handbook
Model
990/4 Computer System Depot
Maintenance
Manual
Model
990/10 Computer System Depot
Maintenance
Manual
iii
Part Number
945250-9701
945403-9701
945404-9701
Digital
Systems Division
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