TI980A Project Log

Date: 08/03/2026
Quick Links:
Scanned Documents Repo
Reproduction Schematics

In summmer 2026, I started scanning documents on the TI980A at the Smithsonian. If you want to see more videos on the TI980A troubleshooting see Usagi Workshop. It contains the vod archive of Friday Night Streams from Usagi Electric. Below is the list of documents at the Smithsonian. Crossed out items are ones that have been scanned.

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Stuff in Boxes 3, 3A, 3B, 3C, 4, 4A

Box 3

Folder 1

Model 960A Computer Maintenance Manual Power Supply Volume V

Programmer's Reference Manual for the Model 960A

Folder 2

Model 960A/980A Computers Direct Memory Access Channel Manual (Manual No. 966312-9701 and 966312-9702)

Standard Price List for 960A/980A

Folder 3

Model 979 Tape Transport Operators Manual (Manual No. 219316-9701)

-Has Original Issue and Revised Issue

Folder 4

Model 980 Computer Installation Procedure for Configuration 8 (Manual No. 943008-9701)

Model 980 Computer Fortran Arithmetic and Control (Manual No. 961961-9740)

Model 980 Computer Fortran Declarations and Input/Output (Manual No. 961961-9742)

-Model 980 Computer Manual Update ECN 394636/Change 1

Model 980 Computer CPU Performance Assurance Tests (Manual No. 961961-9770)

Folder 5

Model 980 Computer Communications Module Manual (manual No. 966643-9701)

980 Software Documentation P/N:976601-9901,-9902 Diagnostic M980R

980 Software Documentation P/N:969762-9901,9902 Performance Demonstration Test for Model 979 Magnetic Tape Transport

Folder 7

980 Software Documentation P/N:968775-9901,9902

-Performance Demonstration Test to assure proper operation of data terminal when interfaced through the Full-duplex Asynchronous Module with the TI980A (RASPDT)

Model 980 Computer Assembly Language Programmer's Reference Manual (Manual No. 943013-9701)

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Box 3A

Folder 1

Model 980 Computer Basic System Use and Operation (Manual No. 961961-9710)

Model 980 Computer DX980 General Purpose Operating System, System Operation Guide (Manual No. 943004-9701)

Folder 2

Model 980 Computer Assembly Language Programmer's Reference Manual (Manual No. 943013-9701)

Folder 3

Model 980 Computer Assembly Language Input/Output (Manual No. 961961-9734)

-Original Issued 1 June 1972, Revised and Reissued 1 August 1975

Model 980 Computer Assembly Language Programmer's Reference Manual Includes Change 1 1 March 1976

Folder 4

980 Software Documentation P/N:944102-9901

-DX980 Patches

980 Software Documentation P/N:966801-9902

-Interval Timer PDT

-Contains Code Listing, Part List for Interval Timer Card, Part, Layout, and Schematic

980 Software Documentation P/N:966802-9901-9902

-Line Printer PDT

-Interface with 132-Column Line Printer (P/N 966792)

-Has Code Listing

980 Software Documentation P/N:944102-9902

-Patches for DC980 to Use disk commands

Folder 5 (980 Software)

P/N:955157-0980

-Access Kit, DISC-Moving HD,SIN,DOC,980A

P/N: 966792-0980

-I/O PRPHL-101A/102A

P/N: 94410-001

-SP, DX980 Op System, DIABLE (M,T)

P/N: 966580-0980

-Interval Timer Doc Kit

P/N: 943265-0003

-SP, DISC Utility Package

P/N: 969760-9901

-PDT of moving head disc unit attached to 980A on internal or external DMAC

P/N: 969790-9902

-Code Listing for 969760-9901

P/N: 969760-9903

-Software Flow Chart for 969760-9901

Folder 6

TI Model 980A Computer System Characteristics

Model 980A Computer Assembly Language Coding Conventions (P/N: 961961-9732)

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Box 3B

Folder 1

Model 980A Computer Maintenance Manual Documentation List Volume IX (Manual No. 960699-9709)

Folder 2

Model 980A Computer Input/Output Data Module User Manual (Manual No. 961961-9710) Issued 15 August 1972

Model 980A Computer Basic System Use and Operation (Manual No. 961961-9710) Issued 15 August 1972

Model 979 Magnetic Tape Transport Performance Demonstration Test (Manual No. 961961-9778) Issued 1 December 1972

Folder 3

Fortran Library and In-Line Assembly Language (Manual No. 961961-9744) Revised 1 March 1973

Maintenance Manual Input/Output Expansion (Manual No. 960699-9704) Issued 15 July 1972 Revised 16 March 1973

Maintenance Manual Electrical Drawings Vol VII (Manual No. 960699-9707) Issued 15 July 1972 Revised 15 February 1973

Folder 4

Maintenance Manual Arithmetic Unit and Control Console Vol II (Manual No. 960699-9702) Issued 15 July 1972 Revised 15 April 1973

CPU Performance Assurance Tests (Manual No. 961961-9770) Revised 15 May 1973

Assembly Language Input/Output (Manual No. 961961-9734) Revised 1 April 1973

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Box 3C

Model 980A Computer Assembly Language Input/Output (Manual No. 961961-9734) Revised 1 April 1973 ECN380749

Model 980A Computer Communications Module (Manual No. 966643-9701) Issued 1 June 1973

Model 980A Computer Overlay Link Editor (Manual No. 961961-9714) Revised 1 June 1973

Model 980A Computer Overlay Link Editor (Manual No. 961961-9714) Revised 1 June 1973

Model 980A Computer Silent 700* Data Terminal and teletypewriter User's Manual (Manual No. 966315-9701) Issued 15 August 1972 Reissued 15 August 1973

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Box 4

Folder 1

Model 980A Computer Basic System Use and Operation (Manual No. 961961-9710) Revised 1 September 1973

Model 980A Computer Input/Output Manual

Model 980A Computer Assembly Language Coding Conventions (Manual No. 961961-9732 Reissued 15 February 1974

Texas Instruments Model 980A Computer System Characteristics

Model 980A Computer Fortran Library and In-Line Assembly Language (Manual No. 961961-9744) Issued 2 October 1972 Revised and Reissued 1 March 1973 Change 1 15 March 1974

Model 980A Computer Communications Module User's Manual (Manual No. 966643-9701) Issued 1 June 1973 Revised and Reissued 19 April 1974

Folder 2

Model 980A Computer Input/Output Data Module User Manual (Manual No. 965956-9701) Issued 15 August 1972 Revised and Reissued 1 June 1974

Model 980A Computer Basic System Use and Operation (Manual No. 961961-9710) Issued 15 August 1972 Revised and Reissued 17 June 1974

Model 980A Computer Assembly Language Coding Conventions (Manual No. 961961-9732 Reissued 15 February 1974 CHANGE 1 8 July 1974

Folder 3

Model 980B Computer Maintenance Manual System Description (Manual No. 943013-9701) Issued 1 October 1974

Folder 4

Ramtek GX-100B Programming Manual

- GX100-63B FS2000-63

-Programming Manual for communication between TI980 series computers with the Ramtek GX100B Video Display System

Section II Programming the GX-100/200 Graphics Display Family

Folder 5

DX980 General Purpose Operating System Programmer's Guide (Manual No. 943005-9701) Original Issue 1 October 1974 Revised and Reissued 15 May 1975 includes CHANGE 1 1August 1975

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Box 4A

Folder 1

DX980 General Purpose Operating System Programmer's Guide (Manual No. 943005-9701) Original Issue 1 October 1974 Revised and Reissued 15 May 1975 includes CHANGE 1 1August 1975

Folder 2

DX980 General Purpose Operating System System Operation Guide (Manual No. 943004-9701) Original Issue 1 March 1975 Revised and Reissued 15 May 1975 includes CHANGE 1 1August 1975

Folder 3

Direct Memory Access Port Expander Maintenance Manual (Manual No. 216759-9701) Original Issue 15 September 1970 Revised and Reissued 15 May 1974

Folder 4 and 5

Robert Ledley's Papers, Newpaper Clipings, journal articles, notes, correspondents about grants and to companies, etc, etcs

Folder 6

ACTA Scanner Photographic Material

Folder 7

ACTA Scanner Film Documentation

Empty the ACTA Scanner model 0100 Operation Instructions Binder

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Completed Reversed Engineered Arithmetic Unit Schematics as of 07/26/2026:

Schematic

To-Do List:

  • Finish Scanning Boxes 3, 3A, 4, and 4A Every Document
  • Finish Remaking every schematic in KiCad
  • Create OP-Code Table