File:Sinclair ZX Spectrum Issue 3 ROM IC5 circuit.png
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Summary
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Crop of Sinclair's ZX Spectrum Issue 3 circuit diagram showing the ROM, IC5, with its supply and decoupling (C41) and the table of NEC and Hitachi functions on pins 20 and 27 (NEC: pin 20 CE, pin 27 CS; Hitachi: pin 20 CS, pin 27 CE). Cropped at full resolution for Sinclair ZX Spectrum ROM Replacement.
Source
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Cropped from File:Sinclair ZX Spectrum Issue 3 circuit diagram.png, itself a copy of "ZX Spectrum Issue 3 - Schaltbild.gif" in the Sinclair ZX Computers Archive.
Author
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Sinclair Research Ltd
Licence
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Copyright Sinclair Research Ltd. Not freely licensed. Hosted for preservation and repair reference.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:04, 25 October 2026 | | 580 × 300 (24 KB) | Josh (talk | contribs) | Image for the Spectrum ROM replacement guide |
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