* [http://www.cpcwiki.eu/manuals/DDI-1%20FD-1%20Service%20Manual.en.rar Amstrad DDI-1 FD-1 Service Manual]
== Datasheets ==
* [[Media:UPD765 Datasheet OCRed.pdf]] - uPD765 disc controller
* [[Media:FDC9229BT Datasheet.pdf]] - FDC9229BT data separator (that usually assists the uPD765 chip)
* [[Media:DDI Schematic.png]] - DDI-1 Schematic (disc interface for CPC464)
[[Category:Hardware]] [[Category:Peripherals]] [[Category:Manual]][[Category:DATA Storage]][[Category:CPC Internal Components]][[Category:Amstrad Products]]