File:Sinclair ZX Spectrum+ Upgrade Instructions.pdf
Summary
[edit | edit source]Sinclair Research Ltd, ZX Spectrum + Upgrade Instructions, the eight-page leaflet supplied with the kit that converted a rubber-key ZX Spectrum into a Spectrum+: tools, warranty note, parts list, the step-by-step conversion for board Issues 1, 2 and 3 (heatsink, reset switch across C27, 22K resistor across R68, case assembly, foam pads, legs and screws) and a problem page. Undated; scanned in 1999 (PDF metadata). Described on Sinclair ZX Spectrum+ Upgrade Instructions.
Source
[edit | edit source]https://spectrumcomputing.co.uk/pub/sinclair/technical-docs/ZXSpectrum%2B_UpgradeInstructions.pdf (379,639 bytes; retrieved 2026-10-25).
Author
[edit | edit source]Sinclair Research Ltd
Licence
[edit | edit source]Copyright Sinclair Research Ltd. Not freely licensed. Hosted for preservation and repair reference.
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 11:21, 25 October 2026 | 0 × 0 (371 KB) | Josh (talk | contribs) | Sinclair Spectrum+ upgrade leaflet |
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