BBC Microcomputer Service Manual October 1985 Section 2
Section 2 of Acorn Computers' BBC Microcomputer Service Manual, part number 0433,001, Issue 1, October 1985 — the BBC Microcomputer Model B+ volume, covering Acorn models ANB51 to ANB54, in 10 pages of contents-bearing text plus circuit material.
It contains the B+ specification (microcomputer, power supply, video outputs, RS423, cassette interface, analogue-to-digital convertor, Econet, Centronics printer interface, audio output, environment and dimensions), disassembly and assembly, and the full circuit description including CPU timing, reset circuitry, address decoding and memory, ROM operation, paged RAM operation and RAM circuitry.
The scan carries a text layer and is searchable.
Download here: BBC Microcomputer Service Manual October 1985 Section 2 Model B Plus.pdf
Other sections of this manual
[edit | edit source]- BBC Microcomputer Service Manual October 1985 — Section 1, Models A and B
- BBC Microcomputer Service Manual October 1985 Section 3 — Additional Upgrades