File:Tandy TRS-80 Model 4D Service Manual Addendum (26-1070, 1985).pdf
Summary
[edit | edit source]Tandy's Addendum to the Model 4 and Model 4 Gate Array Service Manual (Cat. No. 26-1067/8/9) for Model 4D (Cat. No. 26-1070), copyright 1985, 160 scanned pages. Tandy's part lists the differences between the Model 4 and the TRS-80 Model 4D: the keyboard with a Backspace key (8790555), the disk drive mount, cable and drive assembly (8790133), and two capacitors on the gate array board (C2 47 pF and C20 33 pF). The rest is TEC's FB-500 Series Service Manual (document E0-2129-G, revised December 1984) for the drives: mechanical section with component removal, adjustments and head cleaning, electrical section, circuit diagrams, troubleshooting flow charts, parts lists, spare parts, special tools and specifications. Described at Tandy TRS-80 Model 4D Service Manual Addendum.
Source
[edit | edit source]https://archive.org/details/m-4-daddendum (retrieved 2026-10-21)
Author
[edit | edit source]Tandy Corporation; TEC (Tokyo Electric Co., Ltd.) for the FB-500 Series Service Manual
Licence
[edit | edit source]Copyright Tandy Corporation and Tokyo Electric Co., Ltd. Hosted for preservation and repair reference, with the source cited.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 20:32, 21 October 2026 | 0 × 0 (10.8 MB) | Josh (talk | contribs) | Model 4D service manual addendum with TEC FB-500 manual, archive.org m-4-daddendum |
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