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9246A
Technical manual
SDS 9246A Technical Manual
Magnetic tape
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Contents
Table of Contents
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Table of Contents
Section 1
Table of Contents
Operating Instructions Magnetic Tape Systems
Controls and Indicators
A-1. Manual Control Panel
A-2. Auxiliary Control Panel
Operatihg Instructions
Operator Control Panels
B-1. Power Application
B-2. Tape Threading Procedure
2 Power Control Panels
3 Magnetic Tape Threading Procedure
Placement of Load-Point and End-Of-Reel Markers
4 Location of Load-Point and End-Of-Reel Markers
Section 2
Program Restrictions
A-3. Signals from the Tape Unit
Write Operations
B-1. Writing a Tape Record
B-2. Erasing Tape
B-3. Writing at the Ends of the Tape
B-4. Writing an End-Of-File Record
Read Operations
C-1. Reading a Tape Record
C-2. Reading an End-Of-File
C-3. Reading at the End of the Tape
Scan and Search Operations
D-1. Scantape
Search
D-3. Scanning an End-Of-File Record
D-4. Scanning at the Ends of the Tape
Space and Rewind
E-1. Spacing
E-2. Rewinding
Summary of Tape Operation Codes
F-1. Test Conditions
F-2. Tape Functions
Section 3
General
Logic Description
Selection and Starting
Rewind
Beginning and End-Of-Reel Control
Photosensing
Testto
Magnetic Tape Control Timing
Character Recording
Character Reading
Data Translation
Error Detector, Wes
Gap Interrupt Enable
Read Inhibit
Tape Mark Detect
Test Mode
Glossary of Logic Terms Used in 9246 Magnetic Tape Electronics Unit
Magnetic Tape Read or Scan, 41. 7 Kc, Initial Start Forward
Magnetic Tape Read or Scan, 41. 7 Kc, Initial Start Reverse
Magnetic Tape Read, 41. 7 Kc, Reverse Continue
Section 4
Magnetic Tape System Adjustments and Calibration Procedures
F-1. Oscillator, 15 Kc, Meo
F-2. Osc II Later, 41. 7 Kc, Mcb
F-3. OSCILLATOR, 60Kc, Mee
F-6. Gap Detector, Gap
F-7. Clock Signal, MC
Threshold Adjustment, Peak Detector, Thd
And
Character Gate Write Skew, Cgsa
Character Gate Write Skew, Cgsb
Character Gate Write Skew, Cgsc
Error Detector, Wes
F-10. First Character Bit Detect, Cfbc
F-8. First Character Bit Detect, Cfba
F-9. First Character Bit Detect, Cfbb
Control Timer, Dl
F-19. Control Timer, D2
F-20. Control Timer, D3
F-21. Control Timer, D4
Rewind Stop Delay, Dr
F-31. Read Deskew Timers Reverse, R6Ar through Rpar
Write Deskew Timers, M6S through Mps
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MAGNETIC TAPE SYSTEMS .
TECHNICAL MANUAL
Models;
9246A/924a, 92461A/924a1
and 92462A/92482
SDS 901096A
August 1965
!!ii•
•11!5
Price: $3.25
SCIENTIFIC DATA SYSTEMS/1649 Seventeenth Street/Santa Monica, California/UP 1-0960
Scientific Data Systems,· inc.
Printed in U.S.A.
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Chapters
Section 1
8
Section 2
15
Section 3
30
Section 4
78
Table of Contents
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This manual is also suitable for:
9248
92461a
92481
92462a
92482
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