* [http://www.cpcwiki.eu/manuals/Amstrad%20CPC%20464%20Service%20Manual.en.rar Amstrad CPC 464 Service Manual] - includes '''CTM640''' schematics
* [http://www.cpcwiki.eu/manuals/Amstrad%20CPC%20664%20Service%20Manual.en.rar Amstrad CPC 664 Service Manual] - includes '''CTM644''' schematics
* [http://www.cpcwiki.eu/manuals/Amstrad%20CPC%206128%20Service%20Manual.en.rar Amstrad CPC 6128 Service Manual] - includes '''CTM640''' schematics
[[Category:Hardware]][[Category:CPC Internal Components]] [[Category:Peripherals]][[Category:Amstrad Products]]