Amstrad Spectrum +2 Service Manual
The Spectrum +2 Service Manual is Amstrad Consumer Electronics plc's service manual for the grey Sinclair ZX Spectrum +2 (Spectrum 128K +2, main board Z70500 Issue 3). The scan has 12 pages, front and back covers on page 1, and no text layer.
Contents
[edit | edit source]From the contents list on page 2, with PDF page numbers:
- Technical specification and the power adaptor safety tests (flash test and 400 V DC Megger test) (p. 2)
- Diagnostic flow chart, with a cassette and software analysis chart (p. 3)
- Spectrum +2 test software: how to run the test ROM, and the table mapping screen colours to failed RAM chips IC17 to IC32 (p. 4)
- Electrical parts list: transistors, diodes, ICs, capacitors by designator, resistors, coils and miscellaneous parts with Amstrad part numbers (p. 5)
- Circuit diagram (pp. 6 to 7)
- PCB layout, top and bottom (p. 8), and component layout (p. 9)
- Tape interface PCB (p. 10)
- Cassette mechanism parts list (p. 11)
- Cabinet drawing and parts list (p. 12)
What this document does not contain
[edit | edit source]- It covers the grey +2 only, not the +2A, +2B or +3, which use a different board.
- It has no disassembly or Datacorder adjustment procedure; the cassette mechanism appears only as an exploded drawing with a parts list.
Pages that cite this document
[edit | edit source]- Sinclair ZX Spectrum +2: cites p. 2, p. 3, p. 4, p. 5, pp. 6–7
- Sinclair ZX Spectrum +2 Capacitor Replacement Guide: cites p. 5, pp. 6–7, pp. 8–9, p. 10
- Sinclair ZX Spectrum +2 General Maintenance: cites p. 2, p. 3, p. 4, p. 5, pp. 6–7
- Sinclair ZX Spectrum +2 Troubleshooting Guide: cites p. 2, p. 3, p. 4, p. 5, pp. 6–7
- Sinclair ZX Spectrum 128 Service Manual
Download: Amstrad Spectrum +2 Service Manual.pdf