Schematics

A collection of links to circuit diagrams/schematics

Sinclair Branded Amstrad Computers

• Spectrum +2A/+3 .zip file containing scan of the original Amstrad Service Manual Schematic (worldofspectrum.org) Contains several scanning errors and original errors carried forward.

• Redrawn schematics in PDF format for the Spectrum +2A/+3, +2B, and +3B which fix several errors — based on the schematic from the Amstrad +2B/+3B Service Manual.
  • +2A/+3 (Z70830)
  • +2B (Z70833 ISSUE 1)
  • +2B (Z70833 ISSUE 2)
  • +3 (Z70835)

See for additional notes.