File:Acorn A440 Circuit Diagram 0177,300 Sheet 1 of 2.pdf
Summary
[edit | edit source]Acorn Computers drawing 0177,300/C, Archimedes PCB (4M only) (A440) Circuit Diagram, sheet 1 of 2: the full A0 drawing of the A440 main board, scanned at 300 dpi. The title block is dated 1987 and records issues A, 1, 2 (ECO E427) and 3 (ECO E451, January 1988). Sheet 1 has the ARM (IC43), MEMC (IC45), VIDC (IC17), the 32 DRAMs, the ROM sockets, the video output stages and the audio amplifier IC68. The same drawing is reproduced at reduced size in the drawings section of the service manual, File:Archimedes 440 Service Manual Diagrams.pdf. See Archimedes 440 Service Manual. Described on Acorn A440 Circuit Diagram (0177,300).
Source
[edit | edit source]Chris's Acorns, http://chrisacorns.computinghistory.org.uk/docs/Acorn/Manuals/Acorn_A440CircuitDiagram.zip, file Acorn_A4404MCctDiagram1of2.pdf (retrieved 2026-10-01).
Author
[edit | edit source]Acorn Computers Limited
Licence
[edit | edit source]Copyright Acorn Computers Limited. Not freely licensed. Hosted for preservation and repair reference; no licence to redistribute is claimed.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 12:58, 1 October 2026 | 0 × 0 (1.38 MB) | Josh (talk | contribs) | Acorn A440 main board circuit diagram 0177,300/C sheet 1, from Chris's Acorns |
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