Amstrad PLC are very supportive of the Sinclair community
and have granted permission for much of the original documentation to be published and freely distributed. In addition,
many other companies have expressed no concerns about their manuals, etc. being made publicly available. The following is
a short list of the most commonly requested, with many additional items being available from most of these sites.
Amstrad PLC encourages distribution of the original User Guides for many of the machines they hold copyrights for. This is
very welcome, and ensures that the Sinclair community is well served where official documentation is concerned.
A small selection of reference documents are available. You may want to refer to these when reading other sections
of this FAQ, particularly the ports, pinouts,
hardware and Timex sections.
- Z80 Family Official Support Page
Gaby Chaudry maintains a very large site filled with probably as much information as
you could ever need about the Z80 (and related) processors - FAQ & hardware documents, developer tools and utilities, project source code, etc.
- Timex TS2068 Technical Manual
Based on the original 'blue manual' published by Timex in 1984, this book was produced by Time Designs Magazine in 1986.
This .pdf version was produced by Alvin Albrecht, and is one of the few technical references available for this machine.
- Rotronics Wafadrive User Manual
The original User Manual for the Wafadrive is now available from World of Spectrum..
If you need to repair a Sinclair machine, or are interested in learning more about how the systems are designed and constructed,
the following Service Manuals may be of use to you. Since it is possible to damage your machine by attempting a repair, and can be
dangerous if you do not follow the saftey precations, please do not attempt any repairs if you are unsure of your ability to complete
them. Several companies offer a repair service and may be able to service your machine
for you at reasonable cost.
- ZX Spectrum 48K Service Manual
The full ZX Spectrum 48K Service Manual can be viewed as HTML,
using the above link, or downloaded for use offline. These documents, and an unofficial guide developed by
Ian Worsley, are available from the
Lil Old Sinclair Computer Technical Information Repository.
A .pdf version
of this manual is also available, provided by Andy Dansby.
- ZX Spectrum 128K Service Manual
The full ZX Spectrum 128K Service Manual has been converted into a (large) .pdf file by Andy Dansby,
and is available from the World of Spectrum.
- ZX Spectrum +2b/+3 Service Manual
The +2b service manual
and +3 amendment
are available as .tif images from the World of Spectrum.
- ZX Spectrum + 3 Service Manual
The original ZX Spectrum +3 Service Manual is now available in HTML format from World of Spectrum. This was previously available from
Classic 8-Bit Computers before that site closed.
- ZX Microdrive, Interface I and Interface II Service Manuals
The combined service manuals for these products have been converted to .pdf format by Andy Dansby.
- ZX Printer Service Guide
Originally published in the March 1984 issue of 'Your Computer' magazine, this article (entitled 'Servicing your ZX Printer') is available from the
Sinclair Hardware Page.
A .pdf version of the original service
manual is also available, provided by Andy Dansby.
- Sinclair QL Service Manual
Available as a single (very large) .pdf file by clicking the above link, or in HTML format (converted by
Juanjo Ruiz Leo) from the
Sinclair QL Information page.
- ZX81 Service Manual and Assemby Instructions
The original ZX81 kit assembly instructions and original Service Manual is available as a single .pdf file, converted by
These instructions have also been scanned as a series of high-resolution
.gif images by Ron Reunier, and can be downloaded from his Timex/Sinclair web pages.
- ZX Spectrum to ZX Spectrum Plus Upgrade Kit
Fitting instructions for the
ZX Spectrum to ZX Spectrum Plus Upgrade Kit supplied by Sinclair Research.
Peripherals & Miscellaneous:
There are several original instruction manuals, user guides and information sheets available online for many common peripherals. Listed
below are those that relate to commonly emulated (or very popular) devices, primarily intended for use with the ZX Spectrum. Additional
documents are available in a variety of different formats from the World of Spectrum and
Classic 8-Bit Computers.
Circuit Diagrams are available for some common peripherals and most Sinclair computers. These may be of use to you when
carrying out repairs, identifying revision numbers for hardware or building your own versions of these items.