Category:Acorn Computers

Acorn Computers
Repair, Maintenance, and Restoration Guides for Classic Acorn Hardware

The Acorn Computers section is under development. Many guides and schematics may still be missing. If you have expertise or documentation, please contribute!

Welcome to the Acorn Computers category! Here you’ll find maintenance procedures, troubleshooting workflows, capacitor-replacement specs, expansion‐and‐modding tutorials and service manual links for Acorn’s pioneering line of microcomputers, from the early 8-bit Acorn Atom through the RISC-based Archimedes and Risc PC series. For the BBC Micro series see the BBC Micro category.

Each system includes:

Cleaning, maintenance & restoration procedures
Common fault diagnosis & repair
Capacitor replacement & power-supply mods
Expansion and expansion-slot restoration

🧰 System Series (1979–1982)

Model	Maintenance	Troubleshooting	Capacitor Guide	Documentation
Acorn System 1	Acorn System 1 Maintenance Guide	Acorn System 1 Troubleshooting Guide	Acorn System 1 Capacitor Replacement Guide	Acorn System 1 Technical Manual
Acorn System 2	Acorn System 2 Maintenance Guide	Acorn System 2 Troubleshooting Guide	Acorn System 2 Capacitor Replacement Guide	Acorn System Catalogue
Acorn System 3	Acorn System 3 Maintenance Guide	Acorn System 3 Troubleshooting Guide	Acorn System 3 Capacitor Replacement Guide	Acorn System Catalogue
Acorn System 4	Acorn System 4 Maintenance Guide	Acorn System 4 Troubleshooting Guide	Acorn System 4 Capacitor Replacement Guide	Acorn System Catalogue
Acorn System 5	Acorn System 5 Maintenance Guide	Acorn System 5 Troubleshooting Guide	Acorn System 5 Capacitor Replacement Guide	Acorn System 5 Handbook

🖥️ 8-Bit Era (Acorn Atom & Electron)

Model	Maintenance	Troubleshooting	Capacitor Guide	Expansion Mods
Acorn Atom	Acorn Atom General Maintenance	Acorn Atom Troubleshooting Guide	Acorn Atom Capacitor Replacement Guide	Acorn Atom Expansion Bus Mods
Acorn Electron	Acorn Electron Maintenance Guide	Acorn Electron Troubleshooting Guide	Acorn Electron Capacitor Replacement Guide	Electron Plus 1 Mod & Repair

🌲 ARM-Based Desktop Era (Archimedes & A3000/A4000 Series)

Model	Maintenance	Troubleshooting	Capacitor Guide	Expansion / Upgrade
Acorn Archimedes A3000	Acorn Archimedes A3000 Maintenance Guide	Acorn Archimedes A3000 Troubleshooting Guide	Acorn Archimedes A3000 Capacitor Guide	A3000 Flash ROM & IDE Mod
Acorn Archimedes A4000	Acorn Archimedes A4000 Maintenance Guide	Acorn Archimedes A4000 Troubleshooting Guide	Acorn Archimedes A4000 Capacitor Guide	A4000 SCSI & Ethernet Upgrade
Acorn Archimedes A5000	Acorn A5000 Maintenance Guide	Acorn A5000 Troubleshooting Guide	Acorn A5000 Capacitor Guide	A5000 PC-AT Bridge Mod

💾 Risc PC Era

Model	Maintenance	Troubleshooting	Capacitor Guide	Mods & Upgrades
Acorn Risc PC 600	Acorn Risc PC 600 Maintenance Guide	Acorn Risc PC 600 Troubleshooting Guide	Acorn Risc PC 600 Capacitor Guide	Risc PC ARM7500FX Upgrade
Acorn Risc PC 700	Acorn Risc PC 700 Maintenance Guide	Acorn Risc PC 700 Troubleshooting Guide	Acorn Risc PC 700 Capacitor Guide	Risc PC PCI Card Installation

💾 All Acorn Machines

🛠️ Tools, Mods & Resources

Recommended Tools for Vintage Repairs – Essential tools for Acorn disassembly & soldering
Capacitor Failure Symptoms – How to recognize and test aging filter caps
Acorn Edge Connector Pin-outs – Expansion bus wiring & signal tables

📚 Service Manuals & Schematics

Acorn Service Manuals & Schematics

🔍 See Also

Subcategories

This category has the following 2 subcategories, out of 2 total.

A

Acorn Service Manuals (17 P, 17 F)

B

BBC Micro (2 C, 8 P)

Pages in category "Acorn Computers"

The following 85 pages are in this category, out of 85 total.

A

B

Media in category "Acorn Computers"

The following 21 files are in this category, out of 21 total.

Acorn Archimedes A3010 circuit diagram (1 of 3).png 6,623 × 4,678; 2.09 MB
Acorn Archimedes A3010 circuit diagram (2 of 3).png 6,623 × 4,678; 1.62 MB
Acorn Archimedes A3010 circuit diagram (3 of 3).png 6,623 × 4,678; 629 KB
Acorn Archimedes A3010 motherboard.jpg 640 × 308; 47 KB
Acorn Archimedes A3010.jpg 476 × 480; 26 KB
Acorn Archimedes A3020 circuit diagram (1 of 3).png 6,623 × 4,678; 1.94 MB
Acorn Archimedes A3020 circuit diagram (2 of 3).png 6,623 × 4,678; 1.5 MB
Acorn Archimedes A3020 circuit diagram (3 of 3).png 6,623 × 4,678; 948 KB
Acorn Archimedes A3020 motherboard.jpg 640 × 337; 63 KB
Acorn Archimedes A3020 PCB assembly.png 6,623 × 4,678; 1,015 KB
Acorn Archimedes A3020.jpg 609 × 480; 37 KB
Acorn Econet X25 Gateway BBC B Plus card.jpg 640 × 465; 81 KB
Acorn Econet X25 Gateway BBC B Plus Motherboard.jpg 1,661 × 1,171; 492 KB
BBC Micro BPlus Assembly Exploded.png 1,653 × 2,337; 143 KB
BBC Micro BPlus Block Diagram.png 1,653 × 2,337; 94 KB
BBC Micro BPlus Keyboard Schematic.png 1,653 × 2,337; 95 KB
BBC Micro BPlus Main Schematic.png 3,306 × 2,337; 490 KB
BBC Micro BPlus PCB Layout.png 1,653 × 2,337; 153 KB
BBC Micro BPlus PCB Silkscreen.png 1,653 × 2,337; 321 KB
BBC Micro BPlus PCB Traces.png 1,653 × 2,337; 344 KB
BBC Micro BPlus PSU Schematic.png 1,653 × 2,337; 98 KB